United States Environmental Protection Agency Office of Pesticides and Toxic Substances Washington, DC 20460 EPA-OTS 560/5^87-005 July 1987 -. Toxic Substances * Household Solvent Products: A National Usage Survey Carburet Cleaner Paint Remouer Electronic Equipment Cleaner Engine Degreasei Spot Remover Household Lubricant Spray Shoe' Polish Typewriter Correction ------- FINAL REPORT HOUSEHOLD SOLVENT PRODUCTS: A NATIONAL USAGE SURVEY Prepared by: WESTAT, Inc. 1650 Research Boulevard Rockville, MD 20850 Under subcontract to: Battelle Columbus Division Washington Operations 2030 M Street, N.W. Washington, D.C. 20036 Under EPA Contract No. 68-02-4243 For the: Exposure Evaluation Division Office of Toxic Substances Office of Pesticides and Toxic Substances U.S. Environmental Protection Agency Washington, D.C. 20460 July, 1987 U.S. Environmental Protection Agency. Region V, Library ^ 230 South Dearborn Street ' Chicago, Illinois 60604 ,, ,i«-.-: ------- DISCLAIMER This report was prepared under contract to an agency of the United States Government. Neither the United States Government nor any of its employees, contractors, subcontractors, or their employees makes any warranty, expressed or implied, or assumes any legal liability or responsibility for any third party's use or the results of such use of any information, apparatus, product, or process disclosed in this report, or represents that its use by such third party would not infringe on privately owned rights. Publication of the data in this document does not signify that the contents necessarily reflect the views and policies of the U.S. Environmental Protection Agency. Mention of trade names or commercial products does not constitute endorsement or recommendation for use. ------- AUTHORS AND RESEARCH TEAM A variety of staff at Westat contributed to the research design, analysis plan, data collection, data processing, and analysis that made this report possible. Major contributors include: Westat Project Director: Westat Corporate Officer: Westat Project Statistician: Other Research and Computer Staff: Research Analysts and Assistants; Telephone Research Support: Data Preparation Management and Assistance Secretarial Support: Donna Eisenhower Stephen Dietz Paul Flyer John Rogers Joan Bull Garrett Moran Janice Machado Lisa Puhl Debbie Bittner Susan Englehart Cathy Ann Grundmayer Diane Sickles Lisa Caldwalder Caroline Carr Sandy Gallagher Nita Lemanski Betty Ovington 111 ------- ACKNOWLEDGEMENTS Environmental Protection Agency Staff: EPA's OTS Exposure Evaluation Division staff directed all phases of this research effort. Principal EPA contributors include: Task Manager: Mary Frankenberry Task Consultant: Patrick Kennedy Project Officer: Cindy Stroup Battelle Columbus Division Battelle - Columbus Laboratories, as the prime contractor, provided general contract support through: Prime Contract Manager: Jean Chesson Michael Samuhel ------- TABLE OF CONTENTS Section Page LIST OF TABLES xi EXECUTIVE SUMMARY Ivii 1 INTRODUCTION 1-1 I. Background 1-1 II. Survey Methodology 1-4 III. Use of the Data 1-5 IV. Overview to the Report 1-6 2 DESCRIPTION OF QUALITY ASSURANCE PROCEDURES 2-1 I. Questionnaire Validation 2-1 II. Sample Quality and Response Rate 2-2 III. Data Collection Methods 2-3 IV. Data Preparation and Processing 2-3 V. Conclusion and Summary 2-5 3 SAMPLING DESIGN AND SELECTION 3-1 I. Sampling Frame 3-1 II. Selection of the Sample 3-2 III. Sampling Error and Statistical Accuracy ... 3-2 IV. Variance Estimation 3-4 4 RESULTS: COMPARISONS AND ANALYSES ACROSS PRODUCTS 4-1 I. Total Number of Products Used 4-1 A. Products "Ever Used" 4-1 B. Products Used Within the Last Twelve Months 4-1 II. Rank-Orderings of Products by Question and Selected Contributions to Total Exposure .. 4-1 III. Cross Use of Products 4-18 A. Users of Aerosol Spray Paint Who Use Other Products 4-18 VII ------- TABLE OF CONTENTS (Continued) Section Page 4 III. B. Users of Carburetor Cleaners Who Use Other Products 4-18 IV. Specialty Group Users 4-22 A. Automotive Users 4-22 B. Paint Users 4-25 V. Gender and Age Differences in Product Use.. 4-27 A. Gender Differences 4-27 B. Age Differences 4-31 VI. Differences Between Mail and Telephone Completed Questionnaires 4-40 I. Sources of Sampling and Nonsampling Error in the Data II. Descriptive Statistical Aspects and Overview of the Data Ill . Findings for Products A. Spray Shoe Polish B. Water Repellents/Protectors (for Suede, Leather, and Cloth) C. Spot Removers D. Solvent-Type Cleaning Fluids or Degreasers E. Wood Floor and Paneling Cleaners F. Typewriter Correction Fluid G. Contact Cement, Super Glues and Spray Adhesives H. Adhesive Removers (General Purpose, Tile, and Wallpaper) I. Silicone Lubricants (Excluding J. Other Lubricants (Excluding Automotive) K. Specialized Electronic Cleaners (for TV, VCR, Razor, etc.) L. Latex Paint M. Oil Paint N. Wood Stains, Varnishes and Finishes . . . O. Paint Removers/Strippers P. Paint Thinners 5-1 5-2 5-4 5-9 5-23 5-37 5-51 5-65 5-79 5-93 5-107 5-121 5-135 5-149 5-163 5-177 5-191 5-205 5-219 Vlll ------- TABLE OF CONTENTS (Continued) Section Page 5 III. Q. Aerosol Spray Paint 5-233 R. Primers and Special Primers (Excluding Automotive 5-247 S. Aerosol Rust Removers 5-261 T. Outdoor Water Repellents (for Wood or Cement) 5-275 U. Glass Frostings, Window Tints, and Artificial Snow 5-289 V. Engine Degreasers 5-303 W. Carburetor Cleaners 5-317 X. Aerosol Spray Paint for Cars 5-331 Y, Auto Spray Primers 5-345 Z. Spray Lubricant for Cars 5-359 AA. Transmission Cleaners 5-373 BB. Battery Terminal Protectors 5-387 CC. Brake Quieters/Cleaners 5-401 DD. Gasket Removers 5-415 EE. Tire/Hubcap Cleaners 5-429 FF. Ignition and Wire Dryers 5-443 IV. Findings for the Drycleaning Questions .... 5-457 A. Frequency of Commercial Drycleaning Use 5-457 B. Frequency of Self-Service Drycleaning Use 5-459 V. Respondent Characteristics of the Sample .. 5-463 A. Respondent Age 5-463 B. Respondent Gender 5-463 C. Number of Household Members 5-464 D. Number of Bedrooms in House 5-465 6 BRAND IMPUTATION MODELING 6-1 I. Statement of the Problem 6-1 A. Background 6-1 B. Assignment of Zeros 6-4 II. Brand Imputation Model and Procedures 6-5 A. The Model 6-5 B. Brand Imputation Procedures 6-7 IX ------- TABLE OF CONTENTS (Continued) Section Page 6 III. Limitations of the Brand Imputation Model and Procedures 6-8 A. Bias 6-8 B. Overstated Sample Size 6-11 C. Use or Publication of the Results 6-14 Appendices A RESULTS OF VARIANCE ESTIMATION A-l B TOTAL MINUTES OF USE FOR LAST USE OF PRODUCT B-l C ACTUAL MEAN VALUES OF COMPARISONS OF BRANDS BY PRODUCT FOR THOSE WITH AND WITHOUT LABORATORY DATA AND THOSE FOUND TO BE WITH AND WITHOUT THE CHEMICAL C-l D SUMMARY OF THE FINDINGS FOR AEROSOL ONLY PRODUCTS D-l E RECOMMENDATIONS FOR PROJECTING LIFETIME FREQUENCY OF USE E-l F PRODUCT BRAND STATISTICS F-l ------- LIST OF TABLES Table Page 3-1 Chlorocarbon Household Survey Statistical accuracy for selected products used in the last 12 months 3-3 4-1 Descriptive statistics for total number of products ever used 4-2 4-2 Frequency distribution of total products "ever used" 4-2 4-3 Percentile rankings for total number of products ever used 4-3 4-4 Descriptive statistics for total number of products used during last 12 months 4-3 4-5 Frequency distribution of total products used during the last 12 months 4-4 4-6 Percentile rankings for total number of products used during the last 12 months 4-4 4-7 Rank orderings of incidence of use (ever used) for all products 4-6 4-8 Rank orderings of last time product was used in months for all products 4-7 4-9 Rank orderings of number of uses of the product within the last 12 months for all products 4-8 4-10 Rank orderings and average percent of exposure for time spent using product for all products ... 4-10 4-11 Rank orderings and average percent of exposure for time spent in the room after last use for all products 4-11 XI ------- LIST OF TABLES (Continued) Table Page 4-12 Rank orderings and average percent of exposure for amount of product used in ounces per year for all products 4-12 4-13 Rank orderings of those saying they kept a door or window open to the outside for all products .. 4-14 4-14 Rank orderings of those saying they kept an exhaust fan on during use for all products 4-15 4-15 Rank orderings of those saying they kept the door to the room open during use 4-16 4-16 Rank orderings of those saying they read the directions on the label for last use of product 4-17 4-17 Percentage of "Ever Users" of Aerosol Spray Paint who "Ever Used" other products 4-19 4-18 Percentage of users in the last twelve months of Aerosol Spray Paint who also used other products in the last twelve months 4-20 4-19 Percentage of "Ever Users" of Carburetor Cleaners who "Ever Used" other products 4-21 4-20 Percentage of "Users in the Last Twelve Months" of Carburetor Cleaners who also "Used Other Products in the Last Twelve Months" 4-23 4-21 Statistics for usage variables for automotive users (all ten automotive products are assessed as a group) 4-24 4-22 Statistics for usage variables for paint users (selected paint products taken as a group) 4-26 4-23 Gender Differences in Product Use by Product .... 4-28 4-24 Age Differences in Product Use by Product 4-32 5-0 Product Tables (listed as Table A-l - Table FF-19): A. SPRAY SHOE POLISH A-l Numbers and % of respondents ever using Spray Shoe Polish 5-11 ------- LIST OF TABLES (Continued) Table Page A-2 Last time Spray Shoe Polish was used in months 5-12 A-3 Percentile rankings for Spray Shoe Polish months since last use 5-12 A-4 Number of uses of Spray Shoe Polish within the last 12 months 5-13 A-5 Percentile rankings of number of uses of Spray Shoe Polish within the last 12 months 5-13 A-6 Time spent using Spray Shoe Polish, last time used 5-14 A-7 Percentile rankings for time spent using Spray Shoe Polish the last time used 5-14 A-8 Time spent in the room after last use of Spray Shoe Polish 5-15 A-9 Percentile rankings for time spent in the room after last use including those who did not spend any time in room but used Spray Shoe Polish 5-15 A-10 Percentile rankings for Spray Shoe Polish for time spent in the room after last use including only those who spent time in the room 5-16 A-ll Brands of Spray Shoe Polish used 5-17 A-12 Percent of respondents saying Spray Shoe Polish is aerosol 5-17 A-13 Amount of Spray Shoe Polish used in ounces 5-18 A-14 Percentile rankings for amount of Spray Shoe Polish used in ounces 5-18 A-15 Location of last use of the product 5-19 A-16 Protective measures undertaken while using Spray Shoe Polish 5-20 Xlll ------- LIST OF TABLES (Continued) Table Page A-17 Ounces per use of Spray Shoe Polish 5-20 A-18 Percentile rankings of ounces per use of Spray Shoe Polish 5-21 A-19 Respondent characteristics of users of Spray Shoe Polish 5-21 B. WATER REPELLENTS/PROTECTORS (FOR SUEDE, LEATHER, AND CLOTH) B-l Numbers and % of respondents ever using Water Repellents 5-25 B-2 Last time Water Repellents was used in months 5-25 B-3 Percentile rankings for Water Repellents months since last use 5-26 B-4 Number of uses of Water Repellents within the last 12 months 5-27 B-5 Percentile rankings of number of uses of Water Repellents within the last 12 months 5-27 B-6 Time spent using Water Repellents, last time used 5-28 B-7 Percentile rankings for time spent using Water Repellents the last time used 5-28 B-8 Time spent in the room after last use of Water Repellents 5-29 B-9 Percentile rankings for time spent in the room after last use including those who did not spend any time in room but used Water Repellents 5-29 B-10 Percentile rankings for Water Repellents for time spent in the room after last use including only those who spent time in the room 5-30 B-ll Brands of Water Repellents used 5-31 xiv ------- LIST OF TABLES (Continued) Table Page B-12 Percent of respondents saying Water Repellents is aerosol 5-31 B-13 Amount of Water Repellents used in ounces 5-32 B-14 Percentile rankings for amount of Water Repellents used in ounces 5-32 B-15 Location of last use of the product 5-33 B-16 Protective measures undertaken while using Water Repellents 5-34 B-17 Ounces per use of Water Repellents 5-34 B-18 Percentile rankings of ounces per use of Water Repellents 5-35 B-19 Respondent characteristics of users of Water Repellents 5-35 C. SPOT REMOVERS C-l Numbers and % of respondents ever using Spot Removers 5-39 C-2 Last time Spot Removers was used in months 5-39 C-3 Percentile rankings for Spot Removers months since last use 5-40 c-4 Number of uses of Spot Removers within the last 12 months 5-41 C-5 Percentile rankings of number of uses of Spot Removers within the last 12 months... 5-41 C-6 Time spent using Spot Removers, last time used 5-42 C-7 Percentile rankings for time spent using Spot Removers the last time used 5-42 C-8 Time spent in the room after last use of Spot Removers 5-43 XV ------- LIST OF TABLES (Continued) Table Page C-9 Percentile rankings for time spent in the room after last use including those who did not spend any time in room but used Spot Removers 5-43 C-10 Percentile rankings for Spot Removers for time spent in the room after last use including only those who spent time in the room 5-44 C-X1 Brands of Spot Removers used 5-45 C-12 Percent of respondents saying Spot Removers is aerosol 5-45 C-13 Amount of Spot Removers used in ounces ... 5-46 C-14 Percentile rankings for amount of Spot Removers used in ounces 5-46 C-15 Location of last use of the product 5-47 C-16 Protective measures undertaken while using Spot Removers 5-48 C-17 Ounces per use of Spot Removers 5-48 C-18 Percentile rankings of ounces per use of Spot Removers 5-49 C-19 Respondent characteristics of users of Spot Removers 5-49 D. SOLVENT-TYPE CLEANING FLUIDS OR DE6REASERS D-l Numbers and % of respondents ever using Solvent-type Cleaning Fluids 5-53 D-2 Last time Solvent-type Cleaning Fluids was used in months 5-53 D-3 Percentile rankings for Solvent-type Cleaning Fluids months since last use . 5-54 D-4 Number of uses of Solvent-type Cleaning Fluids within the last 12 months 5-55 xvi ------- LIST OF TABLES (Continued) Table Page D-5 Percentile rankings of number of uses of Solvent-type Cleaning Fluids within the last 12 months 5-55 D-6 Time spent using Solvent-type Cleaning Fluids, last time used 5-56 D-7 Percentile rankings for time spent using Solvent-type Cleaning Fluids the last time used 5-56 D-8 Time spent in the room after last use of Solvent-type Cleaning Fluids 5-57 D-9 Percentile rankings for time spent in the room after last use including those who did not spend any time in room but used Solvent-type Cleaning Fluids 5-57 D-10 Percentile rankings for Solvent-type Cleaning Fluids for time spent in the room after last use including only those who spent time in the room 5-58 D-ll Brands of Solvent-type Cleaning Fluids used 5-59 D-12 Percent of respondents saying Solvent-type Cleaning Fluids is aerosol 5-59 D-13 Amount of Solvent-type Cleaning Fluids used in ounces 5-60 D-14 Percentile rankings for amount of Solvent- type Cleaning Fluids used in ounces 5-60 D-15 Location of last use of the product 5-61 D-16 Protective measures undertaken while using Solvent-type Cleaning Fluids 5-62 D-17 Ounces per use of Solvent-type Cleaning Fluids 5-62 D-18 Percentile rankings of ounces per use of Solvent-type Cleaning Fluids 5-63 xvii ------- LIST OF TABLES (Continued) Table Page D-19 Respondent characteristics of users of Solvent-type Cleaning Fluids 5-63 E. WOOD FLOOR AND PANELING CLEANERS E-l Numbers and % of respondents ever using Wood Floor Panel Cleaners 5-67 E-2 Last time Wood Floor Panel Cleaners was used in months 5-67 E-3 Percentile rankings for Wood Floor Panel Cleaners months since last use 5-68 E-4 Number of uses of Wood Floor Panel Cleaners within the last 12 months 5-69 E-5 Percentile rankings of number of uses of Wood Floor Panel Cleaners within the last 12 months 5-69 E-6 Time spent using Wood Floor Panel Cleaners, last time used 5-70 E-7 Percentile rankings for time spent using Wood Floor Panel Cleaners the last time used 5-70 E-8 Time spent in the room after last use of Wood Floor Panel Cleaners 5-71 E-9 Percentile rankings for time spent in the room after last use including those who did not spend any time in room but used Wood Floor Panel Cleaners 5-71 E-10 Percentile rankings for Wood Floor Panel Cleaners for time spent in the room after last use including only those who spent time in the room 5-72 E-ll Brands of Wood Floor Panel Cleaners used. 5-73 E-12 Percent of respondents saying Wood Floor Panel Cleaners is aerosol 5-73 E-13 Amount of Wood Floor Panel Cleaners used in ounces 5-74 XVill ------- LIST OF TABLES (Continued) Table Page E-14 Percentile rankings for amount of Wood Floor Panel Cleaners used in ounces 5-74 E-15 Location of last use of the product 5-75 E-16 Protective measures undertaken while using Wood Floor Panel Cleaners 5-76 E-17 Ounces per use of Wood Floor Panel Cleaners 5-76 E-18 Percentile rankings of ounces per use of Wood Floor Panel Cleaners 5-77 E-19 Respondent characteristics of users of Wood Floor Panel Cleaners 5-77 P. TYPEWRITER CORRECTION FLUID F-l Numbers and % of respondents ever using Typewriter Correction Fluid 5-81 F-2 Last time Typewriter Correction Fluid was used in months 5-81 F-3 Percentile rankings for Typewriter Correction Fluid months since last use 5-82 F-4 Number of uses of Typewriter Correction Fluid within the last 12 months 5-83 F-5 Percentile rankings of number of uses of Typewriter Correction Fluid within the last 12 months 5-83 F-6 Time spent using Typewriter Correction Fluid, last time used 5-84 F-7 Percentile rankings for time spent using Typewriter Correction Fluid the last time used 5-84 F-8 Time spent in the room after last use of Typewriter Correction Fluid 5-85 xix ------- LIST OF TABLES (Continued) Table Page F-9 Percentile rankings for time spent in the room after last use including those who did not spend any time in room but used Typewriter Correction Fluid 5-85 F-10 Percentile rankings for Typewriter Correction Fluid for time spent in the room after last use including only those who spent time in the room 5-86 F-ll Brands of Typewriter Correction Fluid used 5-87 F-12 Percent of respondents saying Typewriter Correction Fluid is aerosol 5-87 F-13 Amount of Typewriter Correction Fluid used in ounces 5-88 F-14 Percentile rankings for amount of Typewriter Correction Fluid used in ounces 5-88 F-15 Location of last use of the product 5-89 F-16 Protective measures undertaken while using Typewriter Correction Fluid 5-90 F-17 Ounces per use of Typewriter Correction Fluid 5-90 F-18 Percentile rankings of ounces per use of Typewriter Correction Fluid 5-91 F-19 Respondent characteristics of users of Typewriter Correction Fluid 5-91 6. CONTACT CEMENT, SUPER GLUES AND SPRAY ADHESIVES G-l Numbers and % of respondents ever using Contact Cements, Super Glues, and Spray Adhesives 5-95 G-2 Last time Contact Cements, Super Glues, and Spray Adhesives was used in months .. 5-95 xx ------- LIST OF TABLES (Continued) Table Page 1-19 Respondent characteristics of users of Silicone Lubricants 5-133 J. OTHER LUBRICANTS (EXCLUDING AUTOMOTIVE) J-l Numbers and % of respondents ever using Other Lubricants 5-137 J-2 Last time Other Lubricants was used in months 5-137 J-3 Percentile rankings for Other Lubricants months since last use 5-138 J-4 Number of uses of Other Lubricants within the last 12 months 5-139 J-5 Percentile rankings of number of uses of Other Lubricants within the last 12 months 5-139 J-6 Time spent using Other Lubricants, last time used 5-140 J-7 Percentile rankings for time spent using Other Lubricants the last time used 5-140 J-8 Time spent in the room after last use of Other Lubricants 5-141 J-9 Percentile rankings for time spent in the room after last use including those who did not spend any time in room but used Other Lubricants 5-141 J-10 Percentile rankings for Other Lubricants for time spent in the room after last use including only those who spent time in the room 5-142 J-ll Brands of Other Lubricants used 5-143 J-12 Percent of respondents saying Other Lubricants is aerosol 5-143 J-l3 Amount of Other Lubricants used in ounces 5-144 xxv ------- LIST OF TABLES (Continued) Table Page J-14 Percentile rankings for amount of Other Lubricants used in ounces 5-144 J-15 Location of last use of the product 5-145 J-16 Protective measures undertaken while using Other Lubricants 5-146 J-17 Ounces per use of Other Lubricants 5-146 J-18 Percentile rankings of ounces per use of Other Lubricants 5-147 J-19 Respondent characteristics of users of Other Lubricants 5-147 K. .SPECIALIZED ELECTRONIC CLEANERS (FOR TV, VCR, RAZOR, ETC.) K-l Numbers and % of respondents ever using Specialized Electronic Cleaners 5-151 K-2 Last time Specialized Electronic Cleaners was used in months 5-151 K-3 Percentile rankings for Specialized Electronic Cleaners months since last use 5-152 K-4 Number of uses of Specialized Electronic Cleaners within the last 12 months 5-153 K-5 Percentile rankings of number of uses of Specialized Electronic Cleaners within the last 12 months 5-153 K-6 Time spent using Specialized Electronic Cleaners, last time used 5-154 K-7 Percentile rankings for time spent using Specialized Electronic Cleaners the last time used 5-154 K-8 Time spent in the room after last use of Specialized Electronic Cleaners 5-155 xxvi ------- LIST OF TABLES (Continued) Table Page H-9 Percentile rankings for time spent in the room after last use including those who did not spend any time in room but used Adhesive Removers 5-113 H-10 Percentile rankings for Adhesive Removers for time spent in the room after last use including only those who spent time in the room 5-114 H-ll Brands of Adhesive Removers used 5-115 H-12 Percent of respondents saying Adhesive Removers is aerosol 5-115 H-13 Amount of Adhesive Removers used in ounces 5-116 H-14 Percentile rankings for amount of Adhesive Removers used in ounces 5-116 H-15 Location of last use of the product 5-117 H-16 Protective measures undertaken while using Adhesive Removers 5-117 H-17 Ounces per use of Adhesive Removers 5-118 H-18 Percentile rankings of ounces per use of Adhesive Removers 5-118 H-19 Respondent characteristics of users of Adhesive Removers 5-119 I. SILICONE LUBRICANTS (EXCLUDING AUTOMOTIVE) 1-1 Numbers and % of respondents ever using Silicone Lubricants 5-123 1-2 Last time Silicone Lubricants was used in months 5-123 1-3 Percentile rankings for Silicone Lubricants months since last use 5-124 xxi 11 ------- LIST OF TABLES (Continued) Table Page 1-4 Number of uses of Silicone Lubricants within the last 12 months 5-125 1-5 Percentile rankings of number of uses of Silicone Lubricants within the last 12 months 5-125 1-6 Time spent using Silicone Lubricants, last time used 5-126 1-7 Percentile rankings for time spent using Silicone Lubricants the last time used .. 5-126 1-8 Time spent in the room after last use of Silicone Lubricants 5-127 1-9 Percentile rankings for time spent in the room after last use including those who did not spend any time in room but used Silicone Lubricants 5-127 1-10 Percentile rankings for Silicone Lubricants for time spent in the room after last use including only those who spent time in the room 5-128 1-11 Brands of Silicone Lubricants used 5-129 1-12 Percent of respondents saying Silicone Lubricants is aerosol 5-129 1-13 Amount of Silicone Lubricants used in ounces 5-130 1-14 Percentile rankings for amount of Silicone Lubricants used in ounces 5-130 1-15 Location of last use of the product 5-131 1-16 Protective measures undertaken while using Silicone Lubricants 5-132 1-17 Ounces per use of Silicone Lubricants ... 5-132 1-18 Percentile rankings of ounces per use of Silicone Lubricants 5-133 xxiv ------- LIST OF TABLES (Continued) Table Page G-3 Percentile rankings for Contact Cements, Super Glues, and Spray Adhesives months since last use 5-96 G-4 Number of uses of Contact Cements, Super Glues, and Spray Adhesives within the last 12 months 5-97 G-5 Percentile rankings of number of uses of Contact Cements, Super Glues, and Spray Adhesives within the last 12 months 5-97 G-6 Time spent using Contact Cements, Super Glues, and Spray Adhesives, last time used 5-98 G-7 Percentile rankings for time spent using Contact Cements, Super Glues, and Spray Adhesives the last time used 5-98 G-8 Time spent in the room after last use of Contact Cements, Super Glues, and Spray Adhesives 5-99 G-9 Percentile rankings for time spent in the room after last use including those who did not spend any time in room but used Contact Cements, Super Glues, and Spray Adhesives 5-99 G-10 Percentile rankings for Contact Cements, Super Glues, and Spray Adhesives for time spent in the room after last use including only those who spent time in the room 5-100 G-ll Brands of Contact Cements, Super Glues, and Spray Adhesives used 5-101 G-12 Percent of respondents saying Contact Cements, Super Glues, and Spray Adhesives is aerosol 5-101 G-13 Amount of Contact Cements, Super Glues, and Spray Adhesives used in ounces 5-102 xx i ------- LIST OF TABLES (Continued) Table Page G-14 Percentile rankings for amount of Contact Cements, Super Glues, and Spray Adhesives used in ounces 5-102 G-15 Location of last use of the product 5-103 G-16 Protective measures undertaken while using Contact Cements, Super Glues, and Spray Adhesives 5-104 G-17 Ounces per use of Contact Cements, Super Glues, and Spray Adhesives 5-104 G-18 Percentile rankings of ounces per use of Contact Cements, Super Glues, and Spray Adhesives 5-105 G-19 Respondent characteristics of users of Contact Cements, Super Glues, and Spray Adhesives 5-105 H. ADHESIVE REMOVERS (GENERAL PURPOSE, TILE, AND WALLPAPER) H-l Numbers and % of respondents ever using Adhesive Removers 5-109 H-2 Last time Adhesive Removers was used in months 5-109 H-3 Percentile rankings for Adhesive Removers months since last use 5-110 H-4 Number of uses of Adhesive Removers within the last 12 months 5-111 H-5 Percentile rankings of number of uses of Adhesive Removers within the last 12 months 5-111 H-6 Time spent using Adhesive Removers, last time used 5-112 H-7 Percentile rankings for time spent using Adhesive Removers the last time used .... 5-112 H-8 Time spent in the room after last use of Adhesive Removers 5-113 xxii ------- LIST OF TABLES (Continued) Table Page K-9 Percentile rankings for time spent in the room after last use including those who did not spend any time in room but used Specialized Electronic Cleaners 5-155 K-10 Percentile rankings for Specialized Electronic Cleaners for time spent in the room after last use including only those who spent time in the room 5-156 K-ll Brands of Specialized Electronic Cleaners used 5-157 K-12 Percent of respondents saying Specialized Electronic Cleaners is aerosol 5-157 K-13 Amount of Specialized Electronic Cleaners used in ounces 5-158 K-14 Percentile rankings for amount of Specialized Electronic Cleaners used in ounces 5-158 K-15 Location of last use of the product 5-159 K-16 Protective measures undertaken while using Specialized Electronic Cleaners ... 5-160 K-17 Ounces per use of Specialized Electronic Cleaners 5-160 K-18 Percentile rankings of ounces per use of Specialized Electronic Cleaners 5-161 K-19 Respondent characteristics of users of Specialized Electronic Cleaners 5-161 L. LATEX PAINT L-l Numbers and % of respondents ever using Latex Paint 5-165 L-2 Last time Latex Paint was used in months. 5-165 L-3 Percentile rankings for Latex Paint months since last use 5-166 xxv 11 ------- LIST OF TABLES (Continued) Table Page L-4 Number of uses of Latex Paint within the last 12 months 5-167 L-5 Percentile rankings of number of uses of Latex Paint within the last 12 months ... 5-167 L-6 Time spent using Latex Paint, last time used 5-168 L-7 Percentile rankings for time spent using Latex Paint the last time used 5-168 L-8 Time spent in the room after last use of Latex Paint 5-169 L-9 Percentile rankings for time spent in the room after last use including those who did not spend any time in room but used Latex Paint 5-169 L-10 Percentile rankings for Latex Paint for time spent in the room after last use including only those who spent time in the room 5-170 L-ll Brands of Latex Paint used 5-171 L-12 Percent of respondents saying Latex Paint is aerosol 5-171 L-13 Amount of Latex Paint used in ounces .... 5-172 L-14 Percentile rankings for amount of Latex Paint used in ounces 5-172 L-15 Location of last use of the product 5-173 L-16 Protective measures undertaken while using Latex Paint 5-174 L-17 Ounces per use of Latex Paint 5-174 L-18 Percentile rankings of ounces per use of Latex Paint 5-175 L-19 Respondent characteristics of users of Latex Paint 5-175 XXVlll ------- LIST OF TABLES (Continued) Table Page M. OIL PAINT M-l Numbers and % of respondents ever using Oil Paint 5-179 M-2 Last time Oil Paint was used in months .. 5-179 M-3 Percentile rankings for Oil Paint months since last use 5-180 M-4 Number of uses of Oil Paint within the last 12 months 5-181 M-5 Percentile rankings of number of uses of Oil Paint within the last 12 months 5-181 M-6 Time spent using Oil Paint, last time used 5-182 M-7 Percentile rankings for time spent using Oil Paint the last time used 5-182 M-8 Time spent in the room after last use of Oil Paint 5-183 M-9 Percentile rankings for time spent in the room after last use including those who did not spend any time in room but used Oil Paint 5-183 M-10 Percentile rankings for Oil Paint for time spent in the room after last use including only those who spent time in the room 5-184 M-ll Brands of Oil Paint used 5-185 M-12 Percent of respondents saying Oil Paint is aerosol 5-185 M-13 Amount of Oil Paint used in ounces 5-186 M-14 Percentile rankings for amount of Oil Paint used in ounces 5-186 M-15 Location of last use of the product 5-187 XXIX ------- LIST OF TABLES (Continued) Table Page M-16 Protective measures undertaken while using Oil Paint 5-188 M-17 Ounces per use of Oil Paint 5-188 M-18 Percentile rankings of ounces per use of Oil Paint 5-189 M-19 Respondent characteristics of users of Oil Paint 5-189 N. WOOD STAINS, VARNISHES AND FINISHES N-l Numbers and % of respondents ever using Wood Stains, Varnishes and Finishes 5-193 N-2 Last time Wood Stains, Varnishes and Finishes was used in months 5-193 N-3 Percentile rankings for Wood Stains, Varnishes and Finishes months since last use 5-194 N-4 Number of uses of Wood Stains, Varnishes and Finishes within the last 12 months .. 5-195 N-5 Percentile rankings of number of uses of Wood Stains, Varnishes and Finishes within the last 12 months 5-195 N-6 Time spent using Wood Stains, Varnishes and Finishes, last time used 5-196 N-7 Percentile rankings for time spent using Wood Stains, Varnishes and Finishes the last time used 5-196 N-8 Time spent in the room after last use of Wood Stains, Varnishes and Finishes ..... 5-197 N-9 Percentile rankings for time spent in the room after last use including those who did not spend any time in room but used Wood Stains, Varnishes and Finishes 5-197 XXX ------- LIST OF TABLES (Continued) Table Page N-10 Percentile rankings for Wood Stains, Varnishes and Finishes for time spent in the room after last use including only those who spent time in the room 5-198 N-ll Brands of Wood Stains, Varnishes and Finishes used 5-199 N-12 Percent of respondents saying Wood Stains, Varnishes and Finishes is aerosol 5-199 N-13 Amount of Wood Stains, Varnishes and Finishes used in ounces 5-200 N-14 Percentile rankings for amount of Wood Stains, Varnishes and Finishes used in ounces 5-200 N-15 Location of last use of the product 5-201 N-16 Protective measures undertaken while using Wood Stains, Varnishes and Finishes 5-202 N-17 Ounces per use of Wood Stains, Varnishes and Finishes 5-202 N-18 Percentile rankings of ounces per use of Wood Stains, Varnishes and Finishes 5-203 N-19 Respondent characteristics of users of Wood Stains, Varnishes and Finishes 5-203 O. PAINT REMOVERS/STRIPPERS o-i Numbers and % of respondents ever using Paint Removers/Strippers 5-207 O-2 Last time Paint Removers/Strippers was used in months 5-207 O-3 Percentile rankings for Paint Removers/ Strippers months since last use 5-208 O-4 Number of uses of Paint Removers/Strippers within the last 12 months 5-209 xxxi ------- LIST OF TABLES (Continued) Table Page O-5 Percentile rankings of number of uses of Paint Removers/Strippers within the last 12 months 5-209 O-6 Time spent using Paint Removers/Strippers, last time used 5-210 O-7 Percentile rankings for time spent using Paint Removers/Strippers the last time used 5-210 O-8 Time spent in the room after last use of Paint Removers/Strippers 5-211 0-9 Percentile rankings for time spent in the room after last use including those who did not spend any time in room but used Paint Removers/Strippers 5-211 0-10 Percentile rankings for Paint Removers/ Strippers for time spent in the room after last use including only those who spent time in the room 5-212 0-11 Brands of Paint Removers/Strippers used.. 5-213 O-12 Percent of respondents saying Paint Removers/Strippers is aerosol 5-213 0-13 Amount of Paint Removers/Strippers used in ounces 5-214 O-14 Percentile rankings for amount of Paint Removers/Strippers used in ounces 5-214 O-15 Location of last use of the product 5-215 O-16 Protective measures undertaken while using Paint Removers/Strippers 5-216 O-17 Ounces per use of Paint Removers/ Strippers 5-216 0-18 Percentile rankings of ounces per use of Paint Removers/Strippers 5-217 O-19 Respondent characteristics of users of Paint Removers/Strippers 5-217 xxx 11 ------- LIST OF TABLES (Continued) Table Page P. PAINT THINKERS P-l Numbers and % of respondents ever using Paint Thinners 5-221 P-2 Last time Paint Thinners was used in months 5-221 P-3 Percentile rankings for Paint Thinners months since last use 5-222 P-4 Number of uses of Paint Thinners within the last 12 months 5-223 P-5 Percentile rankings of number of uses of Paint Thinners within the last 12 months. 5-223 P-6 Time spent using Paint Thinners, last time used 5-224 P-7 Percentile rankings for time spent using Paint Thinners the last time used 5-224 P-8 Time spent in the room after last use of Paint Thinners 5-225 p-9 Percentile rankings for time spent in the room after last use including those who did not spend any time in room but used Paint Thinners 5-225 P-10 Percentile rankings for Paint Thinners for time spent in the room after last use including only those who spent time in the room 5-226 P-ll Brands of Paint Thinners used 5-227 P-12 Percent of respondents saying Paint Thinners is aerosol 5-227 P-13 Amount of Paint Thinners used in ounces.. 5-228 P-14 Percentile rankings for amount of Paint Thinners used in ounces 5-228 P-15 Location of last use of the product 5-229 xxxi11 ------- LIST OF TABLES (Continued) Table Page P-16 Protective measures undertaken while using Paint Thinners 5-230 P-17 Ounces per use of Paint Thinners 5-230 P-18 Percentile rankings of ounces per use of Paint Thinners 5-231 P-19 Respondent characteristics of users of Paint Thinners 5-231 Q. AEROSOL SPRAY PAINT Q-l Numbers and % of respondents ever using Aerosol Spray Paint 5-235 Q-2 Last time Aerosol Spray Paint was used in months 5-235 Q-3 Percentile rankings for Aerosol Spray Paint months since last use 5-236 Q-4 Number of uses of Aerosol Spray Paint within the last 12 months 5-236 Q-5 Percentile rankings of number of uses of Aerosol Spray Paint within the last 12 months 5-237 Q-6 Time spent using Aerosol Spray Paint, last time used 5-238 Q-7 Percentile rankings for time spent using Aerosol Spray Paint the last time used .. 5-238 Q-8 Time spent in the room after last use of Aerosol Spray Paint 5-239 Q-9 Percentile rankings for time spent in the room after last use including those who did not spend any time in room but used Aerosol Spray Paint 5-239 Q-10 Percentile rankings for Aerosol Spray Paint for time spent in the room after last use including only those who spent time in the room 5-240 xxx iv ------- LIST OF TABLES (Continued) Table Page Q-ll Brands of Aerosol Spray Paint used 5-241 Q-12 Percent of respondents saying Aerosol Spray Paint is aerosol 5-241 Q-13 Amount of Aerosol Spray Paint used in ounces 5-242 Q-14 Percentile rankings for amount of Aerosol Spray Paint used in ounces 5-242 Q-15 Location of last use of the product 5-243 Q-16 Protective measures undertaken while using Aerosol Spray Paint 5-244 Q-17 Ounces per use of Aerosol Spray Paint ... 5-244 Q-18 Percentile rankings of ounces per use of Aerosol Spray Paint 5-245 Q-19 Respondent characteristics of users of Aerosol Spray Paint 5-245 R. PRIMERS AND SPECIAL PRIMERS (EXCLUDING AUTOMOTIVE R-l Numbers and % of respondents ever using Primers 5-249 R-2 Last time Primers was used in months .... 5-249 R-3 Percentile rankings for Primers months since last use 5-250 R-4 Number of uses of Primers within the last 12 months 5-251 R-5 Percentile rankings of number of uses of Primers within the last 12 months 5-251 R-6 Time spent using Primers, last time used. 5-252 R-7 Percentile rankings for time spent using Primers the last time used 5-252 xxxv ------- LIST OF TABLES (Continued) Table Page R-8 Time spent in the room after last use of Primers 5-253 R-9 Percentile rankings for time spent in the room after last use including those who did not spend any time in room but used Primers 5-253 R-10 Percentile rankings for Primers for time spent in the room after last use including only those who spent time in the room ... 5-254 R-ll Brands of Primers used 5-255 R-12 Percent of respondents saying Primers is aerosol 5-255 R-13 Amount of Primers used in ounces 5-256 R-14 Percentile rankings for amount of Primers used in ounces 5-256 R-15 Location of last use of the product 5-257 R-16 Protective measures undertaken while using Primers 5-257 R-17 Ounces per use of Primers 5-258 R-18 Percentile rankings of ounces per use of Primers 5-259 R-19 Respondent characteristics of users of Primers 5-259 S. AEROSOL RUST REMOVERS S-l Numbers and % of respondents ever using Aerosol Rust Removers 5-263 S-2 Last time Aerosol Rust Removers was used in months 5-263 S-3 Percentile rankings for Aerosol Rust Removers months since last use 5-264 S-4 Number of uses of Aerosol Rust Removers within the last 12 months 5-265 xxxv i ------- LIST OF TABLES (Continued) Table Page S-5 Percentile rankings of number of uses of Aerosol Rust Removers within the last 12 months 5-265 S-6 Time spent using Aerosol Rust Removers, last time used 5-266 S-7 Percentile rankings for time spent using Aerosol Rust Removers the last time used 5-266 S-8 Time spent in the room after last use of Aerosol Rust Removers 5-267 S-9 Percentile rankings for time spent in the room after last use including those who did not spend any time in room but used Aerosol Rust Removers 5-267 S-10 Percentile rankings for Aerosol Rust Removers for time spent in the room after last use including only those who spent time in the room 5-268 S-ll Brands of Aerosol Rust Removers used ... 5-269 S-12 Percent of respondents saying Aerosol Rust Removers is aerosol 5-269 S-13 Amount of Aerosol Rust Removers used in ounces 5-270 S-14 Percentile rankings for amount of Aerosol Rust Removers used in ounces ... 5-270 S-15 Location of last use of the product .... 5-271 S-16 Protective measures undertaken while using Aerosol Rust Removers 5-272 S-17 Ounces per use of Aerosol Rust Removers. 5-272 S-18 Percentile rankings of ounces per use of Aerosol Rust Removers 5-273 S-19 Respondent characteristics of users of Aerosol Rust Removers 5-273 XXXV11 ------- LIST OF TABLES (Continued) Table Page T. OUTDOOR WATER REPELLENTS (FOR WOOD OR CEMENT) T-l Numbers and % of respondents ever using Outdoor Water Repellents 5-277 T-2 Last time Outdoor Water Repellents was used in months 5-277 T-3 Percentile rankings for Outdoor Water Repellents months since last use .... 5-278 T-4 Number of uses of Outdoor Water Repellents within the last 12 months 5-279 T-5 Percentile rankings of number of uses of Outdoor Water Repellents within the last 12 months 5-279 T-6 Time spent using Outdoor Water Repellents, last time used 5-280 T-7 Percentile rankings for time spent using Outdoor Water Repellents the last time used 5-280 T-8 Time spent in the room after last use of Outdoor Water Repellents 5-281 T-9 Percentile rankings for time spent in the room after last use including those who did not spend any time in room but used Outdoor Water Repellents 5-281 T-10 Percentile rankings for Outdoor Water Repellents for time spent in the room after last use including only those who spent time in the room 5-282 T-ll Brands of Outdoor Water Repellents used. 5-283 T-12 Percent of respondents saying Outdoor Water Repellents is aerosol 5-283 T-13 Amount of Outdoor Water Repellents used in ounces 5-284 xxxviii ------- LIST OF TABLES (Continued) Table Page T-14 Percentile rankings for amount of Outdoor Water Repellents used in ounces 5-284 T-15 Location of last use of the product .... 5-285 T-16 Protective measures undertaken while using Outdoor Water Repellents 5-286 T-17 Ounces per use of Outdoor Water Repellents 5-286 T-18 Percentile rankings of ounces per use of Outdoor Water Repellents 5-287 T-19 Respondent characteristics of users of Outdoor Water Repellents 5-287 U. GLASS FROSTINGS, WINDOW TINTS, AND ARTIFICIAL SNOW U-l Numbers and % of respondents ever using Glass Frosting, Window Tint and Artificial Snow 5-291 U-2 Last time Glass Frosting, Window Tint and Artificial Snow was used in months.. 5-291 U-3 Percentile rankings for Glass Frosting, Window Tint and Artificial Snow months since last use 5-292 U-4 Number of uses of Glass Frosting, Window Tint and Artificial Snow within the last 12 months 5-293 U-5 Percentile rankings of number of uses of Glass Frosting, Window Tint and Artificial Snow within the last 12 months 5-293 U-6 Time spent using Glass Frosting, Window Tint and Artificial Snow, last time used 5-294 U-7 Percentile rankings for time spent using Glass Frosting, Window Tint and Artificial Snow the last time used 5-294 xxxix ------- LIST OF TABLES (Continued) Table Page U-8 Time spent in the room after last use of Glass Frosting, Window Tint and Artificial Snow 5-295 U-9 Percentile rankings for time spent in the room after last use including those who did not spend any time in room but used Glass Frosting, Window Tint and Artificial Snow 5-295 U-10 Percentile rankings for Glass Frosting, Window Tint and Artificial Snow for time spent in the room after last use including only those who spent time in the room 5-296 U-ll Brands of Glass Frosting, Window Tint and Artificial Snow used 5-297 U-12 Percent of respondents saying Glass Frosting, Window Tint and Artificial Snow is aerosol 5-297 U-13 Amount of Glass Frosting, Window Tint and Artificial Snow used in ounces 5-298 U-14 Percentile rankings for amount of Glass Frosting, Window Tint and Artificial Snow used in ounces 5-298 U-15 Location of last use of the product .... 5-299 U-16 Protective measures undertaken while using Glass Frosting, Window Tint and Artificial Snow 5-300 U-17 Ounces per use of Glass Frosting, Window Tint and Artificial Snow 5-300 U-18 Percentile rankings of ounces per use of Glass Frosting, Window Tint and Artificial Snow 5-301 U-19 Respondent characteristics of users of Glass Frosting, Window Tint and Artificial Snow 5-301 xl ------- LIST OF TABLES (Continued) Table Page V. ENGINE DEGREASERS V-l Numbers and % of respondents ever using Engine Degreasers 5-305 V-2 Last time Engine Degreasers was used in months 5-305 V-3 Percentile rankings for Engine Degreasers months since last use .... 5-306 V-4 Number of uses of Engine Degreasers within the last 12 months 5-307 V-5 Percentile rankings of number of uses of Engine Degreasers within the last 12 months 5-307 V-6 Time spent using Engine Degreasers, last time used 5-308 V-7 Percentile rankings for time spent using Engine Degreasers the last time used ... 5-308 V-8 Time spent in the room after last use of Engine Degreasers 5-309 V-9 Percentile rankings for time spent in the room after last use including those who did not spend any time in room but used Engine Degreasers 5-309 V-10 Percentile rankings for Engine Degreasers for time spent in the room after last use including only those who spent time in the room 5-310 V-ll Brands of Engine Degreasers used 5-311 V-12 Percent of respondents saying Engine Degreasers is aerosol 5-311 V-13 Amount of Engine Degreasers used in ounces 5-312 V-14 Percentile rankings for amount of Engine Degreasers used in ounces 5-312 xli ------- LIST OF TABLES (Continued) Table Page V-15 Location of last use of the product .... 5-313 V-16 Protective measures undertaken while using Engine Degreasers 5-314 V-17 Ounces per use of Engine Degreasers .... 5-314 V-18 Percentile rankings of ounces per use of Engine Degreasers 5-315 V-19 Respondent characteristics of users of Engine Degreasers 5-315 W. CARBURETOR CLEANERS W-l Numbers and % of respondents ever using Carburetor Cleaners 5-319 W-2 Last time Carburetor Cleaners was used in months 5-319 W-3 Percentile rankings for Carburetor Cleaners months since last use 5-320 W-4 Number of uses of Carburetor Cleaners within the last 12 months 5-321 W-5 Percentile rankings of number of uses of Carburetor Cleaners within the last 12 months 5-321 W-6 Time spent using Carburetor Cleaners, last time used 5-322 W-7 Percentile rankings for time spent using Carburetor Cleaners the last time used . 5-322 W-8 Time spent in the room after last use of Carburetor Cleaners 5-323 W-9 Percentile rankings for time spent in the room after last use including those who did not spend any time in room but used Carburetor Cleaners 5-323 xlii ------- LIST OF TABLES (Continued) Table Page W-10 Percentile rankings for Carburetor Cleaners for time spent in the room after last use including only those who spent time in the room 5-324 W-ll Brands of Carburetor Cleaners used 5-325 W-12 Percent of respondents saying Carburetor Cleaners is aerosol 5-325 W-13 Amount of Carburetor Cleaners used in ounces 5-326 W-14 Percentile rankings for amount of Carburetor Cleaners used in ounces 5-326 W-15 Location of last use of the product .... 5-327 W-16 Protective measures undertaken while using Carburetor Cleaners 5-328 W-17 Ounces per use of Carburetor Cleaners .. 5-328 W-18 Percentile rankings of ounces per use of Carburetor Cleaners 5-329 W-19 Respondent characteristics of users of Carburetor Cleaners 5-329 X. AEROSOL SPRAY PAINT FOR CARS X-l Numbers and % of respondents ever using Auto Spray Paint 5-333 X-2 Last time Auto Spray Paint was used in months 5-333 X-3 Percentile rankings for Auto Spray Paint months since last use 5-334 X-4 Number of uses of Auto Spray Paint within the last 12 months 5-335 X-5 Percentile rankings of number of uses of Auto Spray Paint within the last 12 months 5-335 xliii ------- LIST OF TABLES (Continued) Table Page X-6 Time spent using Auto Spray Paint, last time used 5-336 X-7 Percentile rankings for time spent using Auto Spray Paint the last time used .... 5-336 X-8 Time spent in the room after last use of Auto Spray Paint 5-337 X-9 Percentile rankings for time spent in the room after last use including those who did not spend any time in room but used Auto Spray Paint 5-337 X-10 Percentile rankings for Auto Spray Paint for time spent in the room after last use including only those who spent time in the room 5-338 X-ll Brands of Auto Spray Paint used 5-339 X-12 Percent of respondents saying Auto Spray Paint is aerosol 5-339 X-13 Amount of Auto Spray Paint used in ounces 5-340 X-14 Percentile rankings for amount of Auto Spray Paint used in ounces 5-340 X-15 Location of last use of the product .... 5-341 X-16 Protective measures undertaken while using Auto Spray Paint 5-342 X-17 Ounces per use of Auto Spray Paint 5-342 X-18 Percentile rankings of ounces per use of Auto Spray Paint 5-343 X-19 Respondent characteristics of users of Auto Spray Paint 5-343 Y. AUTO SPRAY PRIMERS Y-l Numbers and % of respondents ever using Auto Spray Primers 5-347 xliv ------- LIST OF TABLES (Continued) Table Page Y-2 Last time Auto Spray Primers was used in months 5-347 Y-3 Percentile rankings for Auto Sr^ay Primers months since last use 5-348 Y-4 Number of uses of Auto Spray Primers within the last 12 months 5-349 Y-5 Percentile rankings of number of uses of Auto Spray Primers within the last 12 months 5-349 Y-6 Time spent using Auto Spray Primers, last time used 5-350 Y-7 Percentile rankings for time spent using Auto Spray Primers the last time used .. 5-350 Y-8 Time spent in the room after last use of Auto Spray Primers 5-351 Y-9 Percentile rankings for time spent in the room after last use including those who did not spend any time in room but used Auto Spray Primers 5-351 Y-10 Percentile rankings for Auto Spray Primers for time spent in the room after last use including only those who spent time in the room 5-352 Y-ll Brands of Auto Spray Primers used 5-353 Y-12 Percent of respondents saying Auto Spray Primers is aerosol 5-353 Y-13 Amount of Auto Spray Primers used in ounces 5-354 Y-14 Percentile rankings for amount of Auto Spray Primers used in ounces 5-354 Y-15 Location of last use of the product .... 5-355 Y-16 Protective measures undertaken while using Auto Spray Primers 5-356 xlv ------- LIST OF TABLES (Continued) Table Page Y-17 Ounces per use of Auto Spray Primers ... 5-356 Y-18 Percentile rankings of ounces per use of Auto Spray Primers 5-357 Y-19 Respondent characteristics of users of Auto Spray Primers 5-357 Z. SPRAY LUBRICANT FOR CARS Z-l Numbers and % of respondents ever using Spray Lubricants 5-361 Z-2 Last time Spray Lubricants was used in months 5-361 Z-3 Percentile rankings for Spray Lubricants months since last use 5-362 Z-4 Number of uses of Spray Lubricants within the last 12 months 5-363 Z-5 Percentile rankings of number of uses of Spray Lubricants within the last 12 months 5-363 Z-6 Time spent using Spray Lubricants, last time used 5-364 Z-7 Percentile rankings for time spent using Spray Lubricants the last time used .... 5-364 Z-8 Time spent in the room after last use of Spray Lubricants 5-365 Z-9 Percentile rankings for time spent in the room after last use including those who did not spend any time in room but used Spray Lubricants 5-365 Z-10 Percentile rankings for Spray Lubricants for time spent in the room after last use including only those who spent time in the room 5-366 Z-ll Brands of Spray Lubricants used 5-367 xlvi ------- LIST OF TABLES (Continued) Table Page Z-12 Percent of respondents saying Spray Lubricants is aerosol 5-367 Z-13 Amount of Spray Lubricants used in ounces 5-368 Z-14 Percentile rankings for amount of Spray Lubricants used in ounces 5-368 Z-15 Location of last use of the product .... 5-369 Z-16 Protective measures undertaken while using Spray Lubricants 5-370 Z-17 Ounces per use of Spray Lubricants 5-370 Z-18 Percentile rankings of ounces per use of Spray Lubricants 5-371 Z-19 Respondent characteristics of users of Spray Lubricants 5-371 AA. TRANSMISSION CLEANERS AA-1 Numbers and % of respondents ever using Transmission Cleaner 5-375 AA-2 Last time Transmission Cleaner was used in months 5-375 AA-3 Percentile rankings for Transmission Cleaner months since last use 5-376 AA-4 Number of uses of Transmission Cleaner within the last 12 months 5-377 AA-5 Percentile rankings of number of uses of Transmission Cleaner within the last 12 months 5-377 AA-6 Time spent using Transmission Cleaner, last time used 5-378 AA-7 Percentile rankings for time spent using Transmission Cleaner the last time used. 5-378 AA-8 Time spent in the room after last use of Transmission Cleaner 5-379 xlvii ------- LIST OF TABLES (Continued) Table Page AA-9 Percentile rankings for time spent in the room after last use including those who did not spend any time in room but used Transmission Cleaner 5-379 AA-10 Percentile rankings for Transmission Cleaner for time spent in the room after last use including only those who spent time in the room 5-380 AA-11 Brands of Transmission Cleaner used 5-381 AA-12 Percent of respondents saying Transmission Cleaner is aerosol 5-381 AA-13 Amount of Transmission Cleaner used in ounces 5-382 AA-14 Percentile rankings for amount of Transmission Cleaner used in ounces 5-382 AA-15 Location of last use of the product 5-383 AA-16 Protective measures undertaken while using Transmission Cleaner 5-383 AA-17 Ounces per use of Transmission Cleaner .. 5-384 AA-18 Percentile rankings of ounces per use of Transmission Cleaner 5-384 AA-19 Respondent characteristics of users of Transmission Cleaner 5-385 BB. BATTERY TERMINAL PROTECTORS BB-1 Numbers and % of respondents ever using Battery Terminal Protector 5-389 BB-2 Last time Battery Terminal Protector was used in months 5-389 BB-3 Percentile rankings for Battery Terminal Protector months since last use 5-390 BB-4 Number of uses of Battery Terminal Protector within the last 12 months 5-391 xlviii ------- LIST OF TABLES (Continued) Table Page BB-5 Percentile rankings of number of uses of Battery Terminal Protector within the last 12 months 5-391 BB-6 Time spent using Battery Terminal Protector, last time used 5-392 BB-7 Percentile rankings for time spent using Battery Terminal Protector the last time used 5-392 BB-8 Time spent in the room after last use of Battery Terminal Protector 5-393 BB-9 Percentile rankings for time spent in the room after last use including those who did not spend any time in room but used Battery Terminal Protector 5-393 BB-10 Percentile rankings for Battery Terminal Protector for time spent in the room after last use including only those who spent time in the room 5-394 BB-11 Brands of Battery Terminal Protector used 5-395 BB-12 Percent of respondents saying Battery Terminal Protector is aerosol 5-395 BB-13 Amount of Battery Terminal Protector used in ounces 5-396 BB-14 Percentile rankings for amount of Battery Terminal Protector used in ounces 5-396 BB-15 Location of last use of the product 5-397 BB-16 Protective measures undertaken while using Battery Terminal Protector 5-398 BB-17 Ounces per use of Battery Terminal Protector 5-398 BB-18 Percentile rankings of ounces per use of Battery Terminal Protector 5-399 xlix ------- LIST OF TABLES (Continued) Table Page BB-19 Respondent characteristics of users of Battery Terminal Protector 5-399 CC. BRAKE QUIETERS/CLEANERS CC-1 Numbers and % of respondents ever using Brake Quieter/Cleaner 5-403 CC-2 Last time Brake Quieter/Cleaner was used in months 5-403 CC-3 Percentile rankings for Brake Quieter/ Cleaner months since last use 5-404 CC-4 Number of uses of Brake Quieter/Cleaner within the last 12 months 5-405 CC-5 Percentile rankings of number of uses of Brake Quieter/Cleaner within the last 12 months 5-405 CC-6 Time spent using Brake Quieter/Cleaner, last time used 5-406 CC-7 Percentile rankings for time spent using Brake Quieter/Cleaner the last time used. 5-406 CC-8 Time spent in the room after last use of Brake Quieter/Cleaner 5-407 CC-9 Percentile rankings for time spent in the room after last use including those who did not spend any time in room but used Brake Quieter/Cleaner 5-407 CC-10 Percentile rankings for Brake Quieter/ Cleaner for time spent in the room after last use including only those who spent time in the room 5-408 CC-11 Brands of Brake Quieter/Cleaner used .... 5-409 CC-12 Percent of respondents saying Brake Quieter/Cleaner is aerosol 5-409 CC-13 Amount of Brake Quieter/Cleaner used in ounces 5-410 ------- LIST OF TABLES (Continued) Table Page CC-14 Percentile rankings for amount of Brake Quieter/Cleaner used in ounces 5-410 CC-15 Location of last use of the product 5-411 CC-16 Protective measures undertaken while using Brake Quieter/Cleaner 5-412 CC-17 Ounces per use of Brake Quieter/Cleaner.. 5-412 CC-18 Percentile rankings of ounces per use of Brake Quieter/Cleaner 5-413 CC-19 Respondent characteristics of users of Brake Quieter/Cleaner 5-413 DD. GASKET REMOVERS DD-1 Numbers and % of respondents ever using Gasket Removers 5-417 DD-2 Last time Gasket Removers was used in months 5-417 DD-3 Percentile rankings for Gasket Removers months since last use 5-418 DD-4 Number of uses of Gasket Removers within the last 12 months 5-419 DD-5 Percentile rankings of number of uses of Gasket Removers within the last 12 months 5-419 DD-6 Time spent using Gasket Removers, last time used 5-420 DD-7 Percentile rankings for time spent using Gasket Removers the last time used 5-420 DD-8 Time spent in the room after last use of Gasket Removers 5-421 DD-9 Percentile rankings for time spent in the room after last use including those who did not spend any time in room but used Gasket Removers 5-421 li ------- LIST OF TABLES (Continued) Table Page DD-10 Percentile rankings for Gasket Removers for time spent in the room after last use including only those who spent time in the room 5-422 DD-11 Brands of Gasket Removers used 5-423 DD-12 Percent of respondents saying Gasket Removers is aerosol 5-423 DD-13 Amount of Gasket Removers used in ounces. 5-424 DD-14 Percentile rankings for amount of Gasket Removers used in ounces 5-424 DD-15 Location of last use of the product 5-425 DD-16 Protective measures undertaken while using Gasket Removers 5-426 DD-17 Ounces per use of Gasket Removers 5-426 DD-18 Percentile rankings of ounces per use of Gasket Removers 5-427 DD-19 Respondent characteristics of users of Gasket Removers 5-427 EE. TIRE/HUBCAP CLEANERS EE-1 Numbers and % of respondents ever using Tire/Hubcap Cleaners 5-431 EE-2 Last time Tire/Hubcap Cleaners was used in months 5-431 EE-3 Percentile rankings for Tire/Hubcap Cleaners months since last use 5-432 EE-4 Number of uses of Tire/Hubcap Cleaners within the last 12 months 5-433 EE-5 Percentile rankings of number of uses of Tire/Hubcap Cleaners within the last 12 months 5-433 EE-6 Time spent using Tire/Hubcap Cleaners, last time used 5-434 lii ------- LIST OF TABLES (Continued) Table Page EE-7 Percentile rankings for time spent using Tire/Hubcap Cleaners the last time used.. 5-434 EE-8 Time spent in the room after last use of Tire/Hubcap Cleaners 5-435 EE-9 Percentile rankings for time spent in the room after last use including those who did not spend any time in room but used Tire/Hubcap Cleaners 5-435 EE-10 Percentile rankings for Tire/Hubcap Cleaners for time spent in the room after last use including only those who spent time in the room 5-436 EE-11 Brands of Tire/Hubcap Cleaners used 5-437 EE-12 Percent of respondents saying Tire/Hubcap Cleaners is aerosol 5-437 EE-13 Amount of Tire/Hubcap Cleaners used in ounces 5-438 EE-14 Percentile rankings for amount of Tire/ Hubcap Cleaners used in ounces 5-438 EE-15 Location of last use of the product 5-439 EE-16 Protective measures undertaken while using Tire/Hubcap Cleaners 5-440 EE-17 Ounces per use of Tire/Hubcap Cleaners .. 5-440 EE-18 Percentile rankings of ounces per use of Tire/Hubcap Cleaners 5-441 EE-19 Respondent characteristics of users of Tire/Hubcap Cleaners 5-441 FF. IGNITION AND WIRE DRYERS FF-1 Numbers and % of respondents ever using Ignition and Wire Dryers 5-445 FF-2 Last time Ignition and Wire Dryers was used in months 5-445 liii ------- LIST OF TABLES (Continued) Table Page FF-3 Percentile rankings for Ignition and Wire Dryers months since last use 5-446 FF-4 Number of uses of Ignition and Wire Dryers within the last 12 months 5-447 FF-5 Percentile rankings of number of uses of Ignition and Wire Dryers within the last 12 months 5-447 FF-6 Time spent using Ignition and Wire Dryers, last time used 5-448 FF-7 Percentile rankings for time spent using Ignition and Wire Dryers the last time used 5-448 FF-8 Time spent in the room after last use of Ignition and Wire Dryers 5-449 FF-9 Percentile rankings for time spent in the room after last use including those who did not spend any time in room but used Ignition and Wire Dryers 5-449 FF-10 Percentile rankings for Ignition and Wire Dryers for time spent in the room after last use including only those who spent time in the room 5-450 FF-ll Brands of Ignition and Wire Dryers used.. 5-451 FF-12 Percent of respondents saying Ignition and Wire Dryers is aerosol 5-451 FF-13 Amount of Ignition and Wire Dryers used in ounces 5-452 FF-14 Percentile rankings for amount of Ignition and Wire Dryers used in ounces.. 5-452 FF-15 Location of last use of the product 5-453 FF-16 Protective measures undertaken while using Ignition and Wire Dryers 5-453 liv ------- LIST OF TABLES (Continued) Table Page FF-17 Ounces per use of Ignition and Wire Dryers 5-454 FF-18 Percentile rankings of ounces per use of Ignition and Wire Dryers 5-454 FF-19 Respondent characteristics of users of Ignition and Wire Dryers 5-455 5-1 Frequency of commercial drycleaning use - users only for times per month 5-457 5-2 Percentile rankings for frequency of commercial drycleaning use - users only for time per month 5-457 5-3 Frequency of commercial drycleaning use - users and nonusers for times per month 5-458 5-4 Percentile rankings for frequency of commercial drycleaning use - users and nonusers for times per month 5-458 5-5 Numbers using and not using self-service laundry facilities with drycleaning machines 5-459 5-6 Number of times using self-service laundry facilities with drycleaning machines 5-459 5-7 Percentile rankings for number of times using self-service laundry facilities with drycleaning machines 5-460 5-8 Number of times visitors to self-service laundry facilities used drycleaning machines 5-461 5-9 Percentile rankings of number of times visitors to self-service laundry facilities used drycleaning machines 5-461 5-10 Minutes spent inside of laundry facility with drycleaning machines 5-462 5-11 Percentile rankings of minutes spent inside laundry facilities with drycleaning machines .... 5-462 5-12 Respondent age 5-463 Iv ------- LIST OF TABLES (Continued) Table Page 5-13 Percentile rankings of respondent age 5-463 5-14 Gender of respondents 5-463 5-15 Number of household members 5-464 5-16 Percentile rankings for number of household members 5-464 5-17 Number of bedrooms in the house 5-465 5-18 Percentile rankings of number of bedrooms 5-465 6-1 Listing of total number of users, and numbers and percent of users with and without laboratory data, by product category 6-2 6-2 Total and numbers and percents of users with brands attributed zeros, by product category .... 6-6 6-3 Results of the tests of significance for those using products with laboratory data versus those using products without laboratory data 6-9 6-4 Results of the tests of significance for those using products with a chemical versus those using products without a chemical 6-12 Ivi ------- EXECUTIVE SUMMARY On March 29, 1985, the National Toxicological Program1 reported positive results for a bioassay that indicated that methylene chloride is an animal carcinogen. Subsequently, the Environmental Protection Agency, under Section 112 of the Clean Air Act, made a preliminary determination to list methylene chloride as a hazardous air pollutant and on May 14, 1985, under Section 4(f) of the Toxic Substances Control Act, announced its decision to initiate priority review for risks of human cancer from exposure to methylene chloride. There is potential for exposure to methylene chloride from environmental sources, occupational activities and from use of consumer products containing methylene chloride. The EPA found that there was inadequate information on consumer exposure to products containing methylene chloride. This report presents the results of a nationwide study of consumer usage of products thought to contain methylene chloride or five other chlorinated solvents used in combination with or as substitutes for methylene chloride. The consumer is exposed to methylene chloride and its substitutes in an array of household cleaning, painting, lubricating and automotive products. The five other chlorinated solvents included in this study are: trichloroethane, trichloroethylene, carbon tetrachloride, perchloroethylene and 1,1,2-trichlorotrifluoroethane. Thirty such products and others of general interest are included in this survey. These products were found to contain these solvents in an earlier EPA survey ("Household Solvent Products: A 'Shelf Survey with Laboratory Analysis")3. Questions asked on usage characteristics include how often the products were used; when the product was last used; how much time was spent using the product and in the room after the product was used; how much of the product was used; and what protective measures were ^National Toxicology Program (NTP) . NTP Final Report, Technical Report on the Toxicology and Carcinogenesis Studies of Methylene Chloride (PCM) in F344-N Rates and B63F1 Mice. NTP-TR-306. National Institutes of Health (NIH) Publication 85-2562, USHHS, Public Health Service, NIH, 1985. 2Federal Register, May 14, 1985 (50 FR 20126). 3EPA #560/5-87-006, July, 1987. Available through the Nation Technical Information Service (NTIS), Springfield, Virginia. Ivii ------- undertaken during use. This information is used to calculate the exposure assessments. The survey methodology had three parts. In Phase I - A Sample Generation Phase, respondents were contacted using a random digit dialing procedure and asked to participate and to give their address. During Phase II - A Mailout with Product Pictures, the questionnaire and product pictures were sent to each respondent 18 years and older who agreed to participate in Phase I. In Phase III - Telephone Followup to Nonrespondents, respondents who did not return the mailed questionnaire within four weeks were called and asked to complete the interview over the telephone. A complete summary of findings for each product follows this narrative. Highlights of other findings for the 30 products thought to contain these solvents include the following: Respondents used an average of seven products in their lifetime and an average of five products during the last twelve months. The highest incidence of products "ever used" was for contact cements, superglues, and spray adhesives (60.6%); wood stains, varnishes, and finishes (42.9%); and spot removers (39.1%). The lowest incidence was for brake quieters/cleaners (2.6%); gasket removers (2.7%) and transmission cleaners (2.1%). The longest periods since last use (given in mean values) were for spray shoe polish (42.1 months ago); glass frostings, tints, and artificial snow (34.2 months ago); and paint removers/strippers (28.9 months ago). The shortest periods since last use were for spray automotive lubricants (6.3 months ago) and contact cements, superglues, and spray adhesives (5.2 months ago). The highest mean number of times a product was used during the last twelve months was for typewriter correction fluid (40.0 times); solvent cleaners (16.5); and spot removers (15.6). The lowest incidence of recent use was for gasket removers (2.5); transmission cleaners (2.3) and outdoor water repellents (2.1). The most time spent using products other than latex and oil paint, which are not thought to contain these particular solvents (given in mean values), was for paint removers/strippers (125.6 Iviii ------- 7. What size of (PRODUCT) did you use the last time you uaed it? How much of a can or how many cans did you uae during the past year' OUNCES PER YEAR Size uaed ounces (1/4, 1/2. 1. Z, etc.) Amount or number of cans used in year mean 9.9 ounces median 4.5 ounces mean 11,4 ounces median 6.0 ounces mean 26.3 ounces median 5.5 ounces mean 58. 1 ounces median 16.0 ounces mean 28.4 ounces median 14.0 ounces mean 4.1 ounces median .9 ounces mean 7.5 ounces median 1.0 ounces man 34.5 ounces median 10. 8 ounces mean 12.5 ounces median 4.5 ounces mean 9.9 ounces median 2.3 ounces 8. Where did you use (PRODUCT) the last time you used it? 1 Basement 2 Living room 3 Other inside room 4 Garage 5 Outeide in open air 1 B 5.0% 2 LR 14. 9S 3 OR 61 . 3S 4 G 3.4% 5 Outs. 13. 4S 1 B 10.55 2 LR 13.5% 3 OR 44.75 4 G 9.05 5 Outs. 19.65 1 8 9.15 2 LR 19.55 3 OH 57.35 4 G 4.05 5 Outs. 5. 45 1 B 5.45 2 LR 2.65 3 OR 49. 1S 4 G 12.25 5 Outs. 28.05 1 B 3.15 2 LR 26.85 3 OR 49 . 35 4 G 0.6% 5 Outs. 1.25 1 B 2.15 2 LR 14.65 3 OR 79.85 4 G 0.65 5 Outs. 0.4% 1 8 5.65 2 LR 11.95 3 OR 61.1% 4 G 6.2% 5 Outs. 11.75 IB 4.8% 2 LR 5.4% 3 OR 75.4% 4 G 4.2% 5 Outs. 6.6% IB 4.2% 2 LR 4.75 3 OR 28.25 4 G 14.0% 5 Outs. 37.55 1 B 7.55 2 LR 5.8% 3 OR 34.9% 4 G 13.55 5 Outs. 29.65 9. When using (PRODUCT) the last time, did you ... Have a win- dow open to the outside' 1 Yes 2 No Ves. . 415 No . . 60S Yes. . 405 No . . 605 Yes. . 455 No . . 565 Yes. . 575 No . . 435 Yes. . 595 No . . 415 Yes. . 265 No . . 745 Yes. . 415 No . . 595 Yes. . 675 No . . 335 Yes. . 525 No . . 485 Yea. . 435 No . . 575 Have an exhauat fan on' 1 Yes 2 No Yes.. 11% No... 895 Yes.. 85 No... 925 Yes.. 9.75 No.. 90.8% Yes.. 155 No... 85% Yes.. 115 No... 89% Yes.. 85 No... 92% Yes.. 85 No... 925 Yes.. 23% No... 77% Yes.. 8% No... 92% Yes . . 6% No... 94% Keep the inside door to the room open7 1 Yes 2 No Yes. . 765 No . . 24% Yes. . 73S No . . 275 Yes. . 80% No . . 205 Yes. . 745 No . . 265 res. . 835 No . . 175 Yes. . 745 No . . 26% Yes. . 755 No . . 255 Yea. . 795 No . . 215 Yes. . 71% No . . 295 Yes. . 70S No . . 305 Read the directions on the label' 1 Yes 2 No Yes. . 715 (to . . 295 Yes. . 835 No . . 17S Yes. . 775 No . . 235 Yes. . 685 No . . 335 Yea. . 725 No . . 285 Yea. . 395 No . . 615 Yes. . 705 No . . 305 Ves. . 82% No . . 185 Yes. . 61% No . . 395 Yes. . 455 No . , 555 Note: Question 6 has been deleted from the summary but it is reported in the text. Ixiii ------- PRODUCT 11. SPECIALIZED ELECTRONIC CLEANERS era? TV, VCR, RAZOR, ETC.) 12. LATEX PAINT 13. OIL PAINT 14. WOOD STAINS, VARNISHES AND FINISHES 15. I'AINT REMOVERS/ STRIPPERS 16. PAINT THINNERS 17. AEROSOL SPRAY PAINT (EXCLUDING AUTOMOTIVE) 18. PRIMERS AND SPECIAL PRIMERS (EXCLUDING AUTOMOTIVE) 19. AEROSOL RUST REMOVERS 20. OUTDOOR WATER REPELLENTS (FOR WOOD OR CEMENT) 21. GLASS FROSTINGS, WINDOW TINTS, AND ARTIFICIAL SNOW Have you ever used (PRODUCT)" [IF NO, GO TO NEXT PRODUCT.] lea. ... 13S No .... B7S Yes. ... 55S No .... 45* Yes. ... 30S No .... 70S Yea. ... 43S 1*) .... 57S Yes. ... 30% No .... 70S Yes. ... 36S No .... 64% Yes. ... 35S No .... 655 Yea. ... 14% No .... 86% Yes. ... 8% No .... 92% Yes. ... 9% No .... 91% Yea. ... 10S No .... 90S When was the last time you used (PRODUCT)' mean 7.9 mo, median 2.0 mo. mean 16.7 mo. median 8.0 mo. mean 30.4 mo. median 12.0 mo. mean 23.2 mo. median 9.0 mo. mean 28.9 mo. median 12.0 mo. mean 21 .5 mo. median 7.0 mo. mean 17.2 mo. median 6.0 mo. mean 22.0 mo. median 10.0 mo. ne«n 15.1 mo. median 5.0 mo. mean 24.6 mo. median 12.0 mo. mean 34.2 mo. median 8.0 mo. 3. How many times did you use (PRODUCT) in the Isat 12 months'1 mean 13.4 times median 3.0 times mean 3.9 timea median 2.0 times mean 5.7 timea median 1.0 times mean 4.2 timea median 2.0 timea mean 3.7 timea median 2.0 timea mean 6.6 timea median 2.0 times mean 4.2 tinea median 2.0 timea mean 3.4 times median 1.0 timea mean 6.2 times median 2.0 timea mean 2.1 times median 1.0 times mean 2.8 times median 1.0 times 4. How much time did you spend using (PRODUCT) the last time you used if mean 9. 5 minutes median 2.0 minutes mean 295.1 minutes median 180.0 minutes mean 194.1 minutes median 120.0 minutes mean 117.2 minutes median 60.0 minutes mean 125.6 minutes median 60.0 minutes mean 39.4 minutes median 10.0 minutes mean 39.5 minutea median 20.0 minutes mean 91.3 minutes median 30.0 minutes mean 18.6 minutes median 5.0 minutes mean 104.9 minutes median 60.0 minutes mean 29.5 minutes median 15.0 minutes 5. How much time did you apen< in the room immediately af use the last time you used (PRODUCT)? mean 117.2 minutea median 60.0 minutes mean 91.4 minutea median 5.0 minutes mean 100.5 minutes median 30.0 minutes mean 93.4 minutes median 30.0 minutes mean 31.4 minutea median 0.0 minutea mean 32.9 minutes median 0.0 minutes mean 12.7 minutea median 0.0 minutea mean 22.3 minutea median 0.0 minutes mean 15.1 minutea median 0.0 minutes mean 8.3 minutes median 0.0 minutes mean 137.9 minutes median 60.0 minutea *The categories of: - Several inside rooms - Garage & outside, have been omitted from this list. Ixiv ------- minutes); adhesive removers (121 minutes) and wood stains, varnishes, and finishes (117.2 minutes). The least time was for typewriter correction fluid (7.6 minutes); spray shoe polish (7.5 minutes); and ignition/wire dryers (7.2 minutes). The greatest amount used in units of ounces per year per user other than for latex and oil paint, which would otherwise be the highest (given in mean values), was for outdoor water repellents (148.7 ounces); auto spray primers (70.4 ounces); and paint thinners (69.5 ounces). The least amount used was for ignition/wire dryers (9.0 ounces); contact cement, super glues, spray adhesives (7.5 ounces) and typewriter correction fluid (4.1 ounces). Most respondents had a window or door open to the outside when using products for large jobs that were done on the inside; most respondents did not have an exhaust fan on when using these products; most respondents kept the door to the room open when using these products; and most people said that they read the directions on the label. In general, use of the products decreases with increasing age. Gender differences in use of the products are as might be expected with males using lubricants, specialized electronic cleaners, and automotive products more than females, and females using spot removers, solvent type cleaning fluids, wood and paneling cleaners, and typewriter correction fluids more than males. Finally, there were no significant differences in the usage variables between questionnaires completed by mail and those completed by telephone interview. While comparisons across products and general patterns by age and sex can be made, the main purpose of the study is to provide usage statistics for each product that can be used to calculate exposure assessments of the U.S. population to methylene chloride and its substitutes. These usage statistics include the mean, median, and/or percentages for the following variables: frequency of use of the product; duration of use; lix ------- brand names of product used; amount of the product used; location of use; and degree of ventilation and other protective measures undertaken when using the product. All of the information presented in this report has been forwarded to the Office of Toxic Substances, Exposure Assessment Branch and incorporated into consumer exposure assessments for these solvents. The exposure assessments themselves are reported in the report entitled, Consumer Exposure Estimates for Solvents, Draft Report, Versar, Inc., April 30, 1987. A summary of the usage statistics by product is now presented using the original questionnaire format. lx ------- CHLOROCARBON SUMMARY OF FINDINGS HOUSEHOLD SURVEY OF SELECTED CONSUMER PRODUCTS Ixi ------- PRODUCT EXAMPLE SPRAY SHOE POLISH 1. SPRAY SHOE POLISH 2. WATER REPELLENTS/ PROTECTORS (FOR SUEDE, LEATHER, AM) CLOTH) 3. SPOT REMOVERS 4. SOLVENT-TYPE CLEANING FLUIDS OR DEGREASERS 5. WOO FLOOR AND PANELING CLEANERS 6. TYPEWRITER CORRECTION FLUID 7. CONTACT CEMENT, SUPER GLUES AND SPRAY ADHESIVES 8. ADHESIVE REMOVERS (GENERAL PURPOSE, TILE, AM) WALLPAPER) 9. SILICONS LUBRICANTS (EXCLUDING AUTOMOTIVE) 10. OTHER LUBRICANTS (EXCLUDING AUTOMOTIVE) 1. Hf. ve you ever used (PRODUCT)? [IF NO, GO TO NEXT PRODUCT.] 1 Yes 2 No Yea. ... 12% No .... 88S Yes. ... 365 No .... 64S Yes. ... 39S No .... 61 S Yea. ... 28S No .... 72S Yes. ... 35S No .... 65* Yes. ... 26% No .... 74$ Yes. ... 61S No .... 39S Yea. ... 6* No .... 94* Ye*. ... IBS No .... 825 Yes. ... 35S No .... 65% 2. Nhen was the last time you used (PRODUCT)? days ago norths aqo years ago mean 42.1 no. median 12.5 no. mean 20.5 on. median 9.0 mo. mean 14.7 mo. median 3.0 mo. mean 9.9 mo. median 2.0 mo. mean 12.6 mo. median 3.0 mo. mean 6.9 mo. median .9 no. mean 5.2 no. median 1.0 mo. mean 21.6 mo. median 10.0 mo. mean 6.5 no. median 2.0 mo. mean 5.0 mo. median 1.0 mo. 3. Ho" many times did you use (PRODUCT) in the laat 12 months? Number of times used past 12 months mean 10.3 times median 4.0 times mean 3.5 times median 2.0 times mean 15.6 times median 3.0 times mean 16.5 times median 4.0 times mean 8.5 times median 2.0 times mean 40.0 times median 12.0 times mean 8.9 times median 3.0 times mean 4.2 times median 1.0 times mean 10.3 times median 3.0 times mean 10.6 times median 4.0 times 4. How much time t \d you spend using (P, 10UCT) the last time you used if Seconds Minutes Hours mean 7.5 minutes median 5.0 minutes mean 14.5 minutes median 10.0 minutes mean 10.7 minutes median 5.0 minutes mean 29.5 minutes median 15.0 minutes mean 74.0 minutes median 30.0 minutes mean 7.6 minutes median 1.0 minutes mean 15.6 minutes median 4.3 minutes mean 121.0 minutes median 60.0 minutes mean 10.4 minutes median 2.0 minutes mean 8.1 minutes median 2.0 minutes 5. How much time did you spend in the room immediately after use the last time you used (PRODUCT;? Hours Minutes mean 31.5 minutes median 5.0 minutes mean 3.8 minutes median 3.0 minutes mean 43.7 minutes median 5.0 minutes mean 33.3 minutes median 3.0 minutes mean 96.7 minutea median 30.0 minutes mean 128.4 minutes median 60.0 minutes mean 68.9 minutes median 10.0 minutes mean 119.3 minutes median 60.0 minutea mean 65.8 minutes median 10.0 minutea mean 84.1 minutes median 30.0 minutes The categories of: - Several inside rooms - Garage & outside, have been omitted Fran this list. Ixii ------- 7. t*i«t ant of (PRODUCT) did you uae the last time you used it? How much of e can or how many cans did you use during the past year? OUNCES PER YEAR mean 9.5 ounces median 2.0 ounces mean 371.3 ounces median 256.0 ounces mean 168.9 ounces median 64.0 ounces mean 65.1 ounces median 16.0 ounces mean 63.7 ounces median 32.0 ounces mean 69.5 ounces median 20.5 ounces mean 30.7 ounces median 13.0 ounces mean 68.4 ounces median 16.0 ounces mean 18.2 ounces median B.O ounces mean 148.7 ounces median 64.0 ounces mean 13.8 ounces median 12.0 oinces * a. where did you use (PRODUCT) the last time you used if 1 B 5.6* 2 LR 47.5* 3 OR 36. OS 4 G 3.9* 5 Outs. 3.351 1 B 2.8% 2 LR 9.9S 3 OR 47.6* 4 G 2.0% 5 Outs. 24.4* 1 B 5.9* 2 LR 5.9* 3 OR 35.4* 4 G 6.15* 5 Outs. 41.35* 1 B 12.1* 2 LR 7.85 3 OR 29. IS 4 G 13.9* 5 Outs. 31. B* 1 B 11. OS 2 LR 3.2* 3 OR 23.6* 4 G 18. 7S 5 Outs. 38. 5S 1 B 13.4* 2 LR 2.8* 3 OR 19.6* 4 G 19.4* 5 Outs. 39.9* 1 B 7.3S 2 LR 0. 8* 3 OR 9.2* 4 G 15.8* 5 Outs. 64.1* 1 B 4.2* 2 LR 1.8S 3 OR 19.6* 4 G 15.7* 5 Outs. 52.5* IB 6.7* 2 LR 0.7* 3 OR 10.6* 4 G 21 . B* 5 Outs. 53.2* 1 B 1.7* 2 LR 2.1* 3 OR 2.5* 4 G 6.2% 5 Outs. 83.9* 1 8 1.1* 2 LR 58.2* 3 OR 13.5* 4 G 1.5* 5 Outs. 12.0* When using Hsve a win- dow open to the outside1' Yes. . 33* No . . 68* Yes. . 76* No . . 24* Yes. . 70* No . . 31* Yes. . 64S No . . 36* Yes. . 71* No . . 29* Yes. . 67* No . . 33* Yes. . 63S No . . 37* Yes. . 78S No . . 22* Yes. . 61* No . . 39* Yes. . 73* No . . 27* Yes. . 24* No . . 76* 9. ' PRODUCT 1 the last time, did vou . . . Have an exhaust fan on? Yes.. 6* No... 94* Yes.. 16* No... 84% Yes.. 16* No... 84* Yes.. 15* No... 85* Yes.. 16* No... 84* Yes.. 11* No... 90* Yes.. 10* No... 90* Yes.. 16* No... 84* Yes.. 13* No... 87* Yes.. 7* No... 93* Yes.. 11* No... 89* Keep the inside door to the room open7 Yes. . 70% No . . 30S Yes. . 85* No . . 15* Yes. . 77* No . . 23* Yes. . 74* No . . 26* Yes. . 69* No . . 31* Yes. . 68* No . . 32* Yes. . 61* No . . 39* Yes. . 68* No . . 32* Yes. . 57* No . . 43* Yes. . 65* No . . 35* Yes. . 72% No . . 28* Read the directions on the label? Yes. . 74* No . . 26* Yes. . 64* No . . 36* Yes. . 69* No . . 31* Yes. . 77* No . . 23* Yes. . 80* No . . 21* Yes. . 59* No . . 41* Yes. . 73* No . . 27* Yes. . 74* No . . 27* Yes. . 68* No . . 32* Yes. . 81% No . . 19* Yes. . 71* No . . 29* Note: Question 6 has been deleted from the summary but it is reported in the text. Ixv ------- PRODUCT 22. ENGINE DEGREASERS 23. CARBURETOR CLEANERS 24. AEROSOL SPRAY PAINT FOR CARS 25. AUTO SPRAY PRIMERS 26. SPRAY LUBRICANTS FOR CARS 27. TRANSMISSION CLEANERS 28. BATTERY TERMINAL PROTECTORS 29. BRAKE QUIETERS/ CLEANERS 30. GASKET REMOVERS 31. TIRE/HUBCAP CLEANERS 32. IGNITION AND WIRE MYERS 1. Have you ever used (PRODUCT)? [IF NO, GO TO NEXT PRODUCT.] Yes. ... 17% No .... 63% Yes. ... 225 No .... 78% Ye 12% No .... 86% Yes. ... 9% No .... 91S Ye 18% No .... 82% Ye 2% No .... 98% Yea. ... 7S No .... 93% Yes. ... 3% No .... 97% Yes. ... 3% No .... 97% Yes. ... 16% No .... 84% Ye 5% No .... 95% 2. Vtien was the last time you used (PRODUCT)? mean 16.5 mo. median 6.0 mo. mean 13.1 mo. median 4.0 mo. mean 20.8 mo. median 8.0 mo. mean 24. 1 mo, median 11.0 mo. mean 6.3 mo. median 2.0 mo. mean 16.7 mo . median 7.0 mo. mean 14.0 mo. median 6.0 mo- mean 13.3 mo. median 6.0 mo. mean 22.4 mo- median 9.0 mo- mean 7. 2 mo. median 1.0 mo. mean 22.8 no. median 8.0 mo. 3. How many times did you use (PRODUCT) in the Isst 12 months? mean 4.2 times median 2.0 times mean 3.8 times median 2.0 timea mean 4.5 times median 2.0 times mean 6.4 times median 2.0 times mean 10.3 times median 3.0 times mean 2.3 timea median 1.0 times mean 3.9 timea median 2.0 times mean 3.0 timea median 2.0 times mean 2.5 times median 1.0 times mean 11.1 times median 4.0 timea mean 3.0 times medisn 2.0 times 4. How much time did you spend uainq (PRODUCT) the last time you used it? mean 29.8 minutes median 15.0 minutes mean 13.6 minutes median 7.0 minutes mean 42.8 minutes median 20.0 minutes mean 51 .5 minutes median 27.5 minutes mean 9.9 minutes median 5.0 minutes mean 27.9 minutes median 15.0 minutes mean 9.6 minutes median 5.0 minutes mean 23.4 minutes median 15.0 minutes mean 23.6 minutes median 15.0 minutes mean 22.6 minutes median 15.0 minutes mean 7.2 minutes median 5.0 minutes 5. How much time did you spend in the room immediately afte use the last time you used (PRODUCT)' mean 4.5 minutes median 0.0 minutes mean 7.5 minutes median 0.0 minutes mean 10.7 minutes median 0.0 minutes mean 11.4 minutes median 0.0 minutes mean 4.5 minutes median 0.0 minutes mean 6.2 minutes median 0.0 minutes mean 3.2 minutes median 0.0 minutes mean 10.3 minutes median 0.0 minutes mean 27.6 minutes median 0.0 minutes mean 1.5 minutes median 0.0 minutes mean 6.4 minutes median 0.0 minutes Ixvi ------- 7. What size of (PRODUCT) did you use the last time you used if How much of a can or how many cans did you use during the past year'' OUNCES PER YEAR mean 46. 9 ounces median 16.0 ounces mean 22. 0 ounces median 12.0 ounces mean 44.9 ounces median 16.0 ounces mean 70.4 ounces median 16.0 ounces mean 18.6 ounces median 6.0 ounces mean 37.7 ounces median 15.0 ounces mean 16.4 ounces median 4.0 ounces mean 11.7 ounces median 8.0 ounces mean 13,3 ounces median 7.8 ounces mean 31 .6 oinces median 12.0 ounces mean 9.0 ounces median 6.0 ounces a. where did you use (PRODUCT) the last time you used it? 18 0.2S 2 LR 3 OR 1.2% 4 G 7.85 5 Outs. 89. 4S 1 B 0% 2 LR OS 3 OR IS 4 G 11% 5 Outs. 88S 1 B 0.6% 2 LR 3 OR 1.1% 4 G 18. 7S 5 Outs. 77. 7S 18 0.8% 2 LR 3 OR 0.8% 4 G 20.7% 5 Outs. 75.8% 1 B 0.4% 2 LR 3 OR 1.2% 4 G 12.4% 5 Outs. 83.5% 1 B 0% 2 LR 0% 3 OR 1% 4 G 16% 5 Outs. 83% 1 B 2 LR 3 OR 1% 4 G 12% 5 Outs. 87% 1 B - 2 LR - 3 OR 2S 4 G IBS 5 Outs. 80S 1 8 2 LR 3 OR 4 G 39% 5 Outs. 61% 1 B - 2 LR 0.3% 3 OR 0.1S 4 G 3.9S 5 Outs. 94.9% 1 B 2 LR - 3 OR 1% 4 G 9X 5 Outs. 90% 9. When using (PRODUCT) the last time, did you . . . have a win- dow open to the outside? NA MA MA NA NA NA NA W NA NA NA Have an exhaust fan on? IW NA NA W NA NA NA NA NA NA NA Keep the inside door to the room open' NA NA NA NA NA NA NA NA NA NA NA Read the directions on the label' Yes. . 78% No . . 22% Yes. . 74S No . . 26% Yes. . 72S So . . 28% Yes. . 69% No . . 31% Yes. . 55% No . . 45S Yes. . 86% No . . 14% Yes. . 71% Na . . 29% Yes. . 72% No . . 28% Yes. . 74% No . . 26% Yes. . 67% No . . 33% Yes. . 71% * . . 29% Note: Question 6 has been deleted from the summary but it is reported in the text. Ixvii ------- Section 1 INTRODUCTION I. BACKGROUND On March 29, 1985, the National Toxicological Program reported positive results for a bioassay that indicated that methylene chloride is an animal carcinogen. Subsequently, the Environmental Protection Agency, under Section 112 of the Clean Air Act, made a preliminary determination to list methylene chloride as a hazardous air pollutant and on May 14, 1985, under Section 4(f) of the Toxic Substances Control Act, announced its decision to initiate priority review for risks of human cancer from exposure to methylene chloride. On October 17, 1985, in an Advance Notice of Proposed Rulemaking, EPA announced its intention to conduct a regulatory investigation of methylene chloride in consultation and cooperation with the Consumer Product Safety Commission, the Food and Drug Administration and the Occupational Safety and Health Administration. An inter-agency methylene chloride workgroup, chaired by the Office of Pesticides and Toxic Substances, was formed and charged with the responsibility of conducting the regulatory investigation, which had the objective to determine whether or not methylene chloride presents an unreasonable risk to human health or the environment, and to determine if regulatory controls are needed to eliminate or reduce exposure. The investigation revealed that other chlorinated solvents can be used in combination with or as substitutes for methylene chloride and regulation of methylene chloride alone could lead to its substitution by these other solvents. On December 11, 1985, the inter-agency workgroup recommended broadening the regulatory investigation to include six major chlorinated solvents: methylene chloride, trichloroethane, trichloroethylene, carbon tetrachloride, perchloroethylene and 1,1,2-trichlorotrifluoro- ethane. The solvents were selected for study on the basis of their large production volumes, their interchangeability, and their known and potential adverse health and environmental effects. There is potential for exposure to methylene chloride from environmental sources, occupational activities and from use of consumer products containing methylene chloride. The EPA found that there was inadequate information on consumer exposure to methylene chloride. The purpose of this study is to provide the interagency workgroup with information that would assist them in estimating the magnitude of exposure to methylene chloride in consumer products. The study is a nationwide consumer survey to 1-1 ------- determine pertinent characteristics of consumer use of various household cleaning, painting, and automotive products which are thought to contain methylene chloride or one of its five chemical substitutes. The primary role of methylene chloride and its substitutes is that of a solvent in most of these products. Methylene chloride is effective in removing all types of surface finishes, including synthetics and epoxies. Solvent cleaning, often referred to as degreasing, involves removal of grease, wax and other forms of dirt from a variety of materials including metal, plastic, glass and fabric. In addition to methylene chloride's excellent solvent properties, it is also nonflammable and has a rapid evaporation rate. The five potential substitute chemicals have similar physical chemical properties and may, therefore, be used for similar purposes. In fact, for certain chemical uses the chemical of choice is often determined by the going price at the time. The consumer is exposed to methylene chloride and its substitutes in an array of household cleaning products, painting and lubricating products, and automotive products. Thirty such products are now included in this survey, and laboratory tests have shown that methylene chloride or one of its substitute chemicals is, in fact, present in these products. The 30 products plus two additional products included because of general interest are as follows: Product List 1. Spray Shoe Polish 2. Water Repellents/Protectors 3. Spot Removers 4. Solvent-Type Cleaning Fluids and Degreasers 5. Wood Floor and Paneling Cleaners 6. Typewriter Correction Fluid 7. Adhesives (Glue) 8. Adhesive Removers 9. Silicone Lubricants 10. Other Lubricants 1-2 ------- 11. Specialized Electronic Cleaners (for TVs, VCRs, Records, Computers and Shavers) 12. Latex Paint 13. Oil Paint* 14. Wood Stains and Varnishes 15. Paint Removers/Strippers 16. Paint Thinners 17. Aerosol Spray Paint 18. Primers and Special Primers 19. Rust Removers 20. Outdoor Water Repellents (for wood or cement) 21. Glass Frostings 22. Engine Degreasers 23. Carburetor Cleaners 24. Aerosol Spray Paint for Cars 25. Auto Spray Primers 26. Spray Lubricant for Cars 27. Transmission Cleaners 28. Battery Terminal Protectors 29. Brake Quieters/Cleaners 30. Gasket Removers 31. Tire/Hubcap Cleaners 32. Wire Dryers Do not contain methylene chloride but are of interest to EPA for other reasons. 1-3 ------- Latex and oil paint are not thought to contain methylene chloride or its substitutes, but do contain other chemicals of interest to EPA and, therefore, are included as an economy measure since the design and sample size lend themselves to surveying these paint users. Personal care products were beyond the scope of this study and therefore were not included. This household consumer survey was conducted in conjunction with a shelf survey and laboratory tests to measure the presence or absence of methylene chloride and its substitutes. The shelf survey involved collecting over 1200 household cleaning and polishing, painting and lubricating, and automotive products from six cities nationwide. These items were then laboratory tested. Laboratory tests on products collected from the first city (Washington, D.C.) reduced the original product list from over 59 product types (suspected to contain the solvents) to the 30 product types listed above. II. SURVEY METHODOLOGY The survey had a three-part methodology, namely: Part I - A Sample Generation Phase; Part II - A Mailout with Product Pictures; and Part III - Telephone Follow-up to Nonrespondents of the Mail Survey. In Part I the sample was generated using a random digit dialing procedure. Using this procedure, a random selection of blocks of numbers (including unpublished numbers) within a certain exchange were made available. The interviewer in Phase I made a determination whether a working residential number had been obtained and then introduced the study; sought the respondent's participation; asked for the mailing address; and asked for the names of all of the adults in the household 18 years of age and older. In Part II a questionnaire and a color foldout of product pictures was sent to each respondent separately. A pretest finding indicated that each respondent should receive a package separately from other respondents in the same household as a measure to avoid one member filling out each questionnaire for all respondents in the household. The pretest also indicated that the product pictures effectively familiarized the respondents with the products and aided them in answering the questions. This finding was confirmed in the study, even if the respondent completed the questionnaire over the telephone. Part III involved telephone followup to those who did not respond to the mailed questionnaire within a four-week period. Telephone followup at the end of the four-week period was thought to be more effective and efficient than doing a second mailing or prompting calls especially since time was an important factor. 1-4 ------- The same questionnaire was administered by the interviewer and the interview took, on the average, twenty to thirty minutes. The mailed questionnaire with product pictures appeared to be a positive influence on the response rate even when the questionnaire was administered over the telephone. III. USE OF THE DATA Respondents were asked questions as to their usage of the products. Information included the following: Frequency of use of the product; Duration of use; Brand names of products used; Amount of the products used; Location of use; and Degree of ventilation and other protective measures undertaken when using the product. This information was needed for the Environmental Protection Agency to determine whether the magnitude of exposure to methylene chloride and its substitutes in consumer products presents an "unreasonable risk." Each question in the questionnaire has utility to the risk assessment for methylene chloride and its substitutes. The main exposure variables for performing assessments are as follows: For inhalation exposure of an individual reported as a dose (that is, as a quantity absorbed into the body): 1. Frequency (events/year). 2. Years of exposure per lifetime. 3. Duration of exposure (hours/event). 4. Chemical concentration in room air. 5. Inhalation rate. 6. Fraction of inhaled chemical which is absorbed. 1-5 ------- For dermal exposure (individual): 1. Frequency. 2. Years of exposure per lifetime. 3. Skin surface area covered by product. 4. Film thickness of layer of product on skin. 5. Density of product. 6. Weight fraction of chemical in product. 7. Dermal absorption rate. Assumptions can be made with relative certainty based on physical measurements for some variables. However, without this survey the frequency and duration of use, ventilation safeguards, and use of other protective measures would be left to guesswork. IV. Overview to the Report Section 1 has provided the background and description of the study and a description of the study methodology. The remainder of the report appears as follows: Section 2 - Describes the quality assurance procedures including questionnaire validation, the sample quality and response rate, data collection methods, and data preparation and processing. Section 3 - Discusses the sample design and selection, sampling error, and variance estimation procedures. Section 4 - Presents findings for comparisons made between products. It includes statistics for the total number of products used, rank orderings of products from highest to lowest values on key usage variables, and information on automotive and paint product users, each as a group. Section 5 - Discusses aspects of the data such as sources of sampling and nonsampling error in the product data, and presents the detailed findings for the usage questions on a product-by-product basis. 1-6 ------- Section 6 - Describes a shelf study and laboratory testing done for products in conjunction with this household survey. It also presents a brand imputation model used to simulate laboratory data where a respondent named a brand not previously laboratory tested in the shelf survey. A series of technical appendices include the following: Appendix A - Results of the variance estimation procedures; Appendix B - Results of a calculation for total minutes of use by product; Appendix C - Actual mean values of comparisons of brands by product for those with and without laboratory data and those found to be with and without the chemical; Appendix D - Summary of the findings for aerosol "only" products; Appendix E - Recommendations for lifetime frequency of use; and Appendix F - Product Brand Statistics. 1-7 ------- Section 2 DESCRIPTION OF QUALITY ASSURANCE PROCEDURES Systematic survey and quality assurance procedures were an important part of all aspects of this study. Quality assurance procedures related to questionnaire validation; sample quality and response rates; data collection and the telephone center procedures; data preparation and processing are discussed below. I. QUESTIONNAIRE VALIDATION This project involved the design of one questionnaire which addressed consumer use of chemicals contained in an array of products used around the home and in the automobile. Major quality assurance procedures were undertaken to assure that valid and reliable data were collected via the questionnaire format. These procedures included: the collection of background information relevant to questionnaire design; the formal pretesting of the questionnaire; and reliability checks of the information collected. To assure valid results, relevant background information was collected in advance. For example, available market data were analyzed as to the incidence of use of these products by consumers. Where market data were not available, such as for aerosol spray paint and some other products, local store owners were interviewed prior to the questionnaire preparation. Store visits were made to become familiarized with the products in question. Finally, indepth meetings with relevant agencies were undertaken to assure the development of useful questions. Once the questionnaire was drafted, formal pretests were scheduled. The pretest involved mailing out the questionnaire and doing telephone interviews with nonrespondents. Two different formats were pretested, some with and some without pictures of the products. The pretest revealed problems such as questionnaire length; ability and difficulty comprehending the two different formats; awkward wording of some questions; and the respondent's tolerance for a certain repetition of questions. A formal pretest of the questionnaire was an indispensable means which led to a more meaningful development of the questionnaire. It also shed light on measures that needed to be considered in training the interviewers and, therefore, also influenced the quality of the information collected. Results of the pretest were used to choose the most effective format and to revise the questionnaire. 2-1 ------- II. SAMPLE QUALITY AND RESPONSE RATE Even though this study was a mailout survey with telephone followup, the sample itself was generated by using a "random digit dialing" procedure in which telephone numbers were selected utilizing an unbiased, equal probability method known as the "Waksberg Method." The Waksberg sampling method provided relatively unbiased results while being cost-effective by reducing the number of unproductive calls. It takes advantage of the fact that a high proportion of nonworking and commercial numbers occur in consecutive sequences. The procedure essentially amounts to first identifying a sample of blocks of numbers which contain working residential telephone numbers and dialing random numbers within those blocks. There are 46,000 blocks or clusters within the United States. A random selection of 1093 clusters were selected for this study. Every effort was made to maximize the response rate. The response rate for Phase I, the sample generation, was 80% and the response rate for Phase III, the telephone followup, was 84%. After taking into account the response rates for all phases, including the mailed in questionnaires, the overall response rate produced for the study was 73%. These response rates produced 4,920 completed questionnaires. Other procedures assuring the quality of the sample and a high response rate included: Internal computer checks to determine and eliminate any duplication of clusters randomly selected; Monitoring of interviewers for the telephone initiation and followup to assure that the number randomly generated was the only one utilized; Attractive questionnaire design and easy to follow directions for the mailout, including a foldout of pictures of the products; A toll-free number that respondents could call to verify the legitimacy of the survey; Careful wording of the introduction making it as interesting as possible and attention to questionnaire wording and length; Scan edits to verify that interviews were, in fact, completed and ineligibles were, in fact, ineligible; 2-2 ------- Systematic callback procedures over an extended period of time to maximize the chances of interviewing the person at the number randomly generated; and Converting those who initially decline through systematic callback procedures. III. DATA COLLECTION METHODS Quality control was assured during data collection by substantial training of interviewers and receipt clerks, careful supervision and monitoring of the interviewers during the interviewing and the receipt clerks for the mail-ins, and careful handling and storing of the questionnaires. All receipt clerks on the questionnaire mail-in operation received training by the project director. Systematic procedures were developed in advance to carefully handle and store the questionnaires. All interviewers used in the telephone followups received general interviewing training and project specific training. The general training includes the learning of voice and diction techniques, active listening skills, how to establish rapport with the respondent, how to probe for answers, how to handle refusals or difficult clients, and how to edit the written work involved in the questionnaire. Project specific training involved background on the study and question-by-question specifications and instructions. In both cases, interactive lectures, audiovisual materials, and role plays were utilized. All interviewers for this survey were assigned to a Telephone Center Supervisor. The supervisor participated in the training efforts and monitored the interviews once they began. Monitoring took place in separate rooms from the interview carrels. Interviewers were observed and heard on silent listening devices. Most of the interviews during the first week of the study were monitored. The supervisor identified problems and took corrective actions, such as retraining and tutoring, to assure consistent quality of the interviews. Finally, all the questionnaires were securely stored. The security facilities included a vault where completed questionnaires and other materials will be kept at the close of the study. A computerized mail receipt system was designed so that every questionnaire received an interim and a final status. IV. DATA PREPARATION AND PROCESSING First, a visual edit of all questionnaire items (for omissions, incomplete data entries and inconsistencies) was 2-3 ------- completed by the telephone interviewers; then by their supervisor; and again by the coding supervisor. Any omissions or errors were corrected prior to data entry. Each coder's initial day's work was also 100 percent verified by the coding supervisor. When an acceptable error level was attained, verification was cut back and performed on at least 15 percent of each coder's subsequent work. Second, preceding and precolumning were used in the questionnaire, as well as a coding manual to instruct coders as to specifications and decision rules. The questionnaire format and the manual addressed the following: Question numbers and item descriptions for each codable item; Card and column locations of all codable items; Codes for all possible responses, including codes for no data responses such as "inapplicable"; Clear delineation of skip patterns in the form of contingency boxes; and Editing instructions in the form of editing check lists and edit boxes. Editing check lists include instructions for edits which require an overview of a section of the questionnaire and edit boxes include instructions for editing particular boxes. A third quality control measure related particularly to coding was the maintenance of a decision log to document two kinds of decisions. The first is a decision documentation related to inconsistencies or missing data in specific cases, and these decisions were recorded throughout the coding process. The second type of decision recording mechanism is that which involved the broader issues of study methodology from instrument design and sample selection to the form of the final data analysis reports. As these decisions affect the nature of the study, they were only made by the task leader. After coding was completed, the coded forms were keyed and the keyed material edited in preparation of a clean data base necessary for data analysis. All data was 100 percent key verified. This means that a person other than the original data entry clerk re-keyed the data, and the two records were compared and inconsistencies resolved. 2-4 ------- The following are examples of the types of other checks that were performed on the data: Range checks on fields where a limited range was known to be possible, such as the number of children in the household or the number of hours spent using a given product; A crosscheck of related fields, such as the number of people using the product in the last 12 months who also filled out questions 3 through 9; Checks for illegal characters, such as letters in numeric fields or special characters in alphabetic fields; and Validity checks on all codes such as the brand codes. Wherever errors were detected, corrections were made or records deleted by way of a file-updating program. V. CONCLUSION AND SUMMARY In summary, EPA is firmly committed to the principles and procedures which facilitate quality assurance in its survey procedures. Quality assurance procedures discussed in this section are summarized on the next page. 2-5 ------- SUMMARY OF QUALITY ASSURANCE PROCEDURES Quality Control Area Questionnaire Validation Sample Quality Data Collection Procedures Data Preparation and Processing/Procedures Methods to Be Used Collection of relevant background information regarding use of the relevant products Formal pretesting by mail and in the Telephone Center Respondent reliability checks through re- interviews Random Digit Dialing as a cost-effective and efficient method for generating the sample Computer checks for duplication of clusters Systematic callbacks over an extended period of time Receipt clerk training Interviewer training Interviewer supervision Systematic handling and storing of questionnaires Visual edits of the questionnaire Preceding and precolumning Coding manual Decision logs 100 percent of coding verified by supervisor during first day and 15 percent thereafter 100 percent of data keyed are key verified by a second data entry clerk Machine edit of range and logic checks, as well as validity of codes and skip patterns 2-6 ------- Section 3 SAMPLING DESIGN AND SELECTION I. SAMPLING FRAME Telephone surveys typically use telephone directories or numbers generated from random digit dialing (ROD) as the sampling frame. Telephone directories, however, have the disadvantage of excluding households with unlisted numbers and households that have recently moved. Moreover, most telephone companies are unwilling to release a list of all residential telephone numbers for sampling purposes since this may violate a commitment made to customers with unlisted numbers. Current and comprehensive lists of residential telephone numbers are generally not available for sampling purposes. Random digit dialing methods, on the other hand, do not have these limitations. Although there are several methods of implementing random digit dialing (ROD), this survey used a procedure called the Waksberg Method. The Waksberg Method provides an unbiased sample of households with telephones, with most households having the same probability of selection. Moreover, the method is relatively efficient since it requires fewer telephone calls than the earlier procedures developed for RDD. A small percentage of households, 2 to 3 percent, have multiple phone numbers. The vast majority of multiple phone number households will have only two phone numbers. Rather than introduce weights into the data set, the information collected on the number of homes within a household was ignored. Because of the very small number of households with multiple phones, the potential for biasing the results in a meaningful way is remote. This method of sample selection for telephone interviewing via RDD, therefore, significantly reduced the cost of this survey, as compared to dialing numbers completely at random. The problem with dialing numbers completely at random is that most numbers dialed turn out to be nonworking numbers. An additional group represents business or other nonresidential units. Current estimates are that about 80 percent of the potential numbers within existing telephone exchanges are non-working and about 3 percent are businesses or institutions of some type. About 20 percent turn out to be residential. Therefore, with numbers selected at random (within known telephone exchanges), calls to about five separate numbers are needed to produce a single residential unit. In many cases, the telephone companies do not provide a message that the number 3-1 ------- dialed is not a working number; and additional checking is necessary to distinguish between not-at-home and nonworking numbers, adding further to the cost of producing completed interviews. The sampling method used in this study was designed to reduce the number of nonproductive calls. It takes advantage of the fact that a high proportion of nonworking and commercial numbers occur in consecutive sequences. The procedure essentially amounts to first identifying and selecting a sample of blocks of numbers which contain working residential telephone numbers and then dialing numbers at random within the blocks. If the primary number in the block or cluster is residential the cluster has a greater probability of producing other residential numbers. II. SELECTION OF THE SAMPLE The sample was selected in two waves given a late decision to increase the sample size. Wave 1 consisted of 600 clusters with 500 of them with four households per cluster and 100 of them with five households per cluster. Wave 2 consisted of 493 clusters with two households per cluster. The decision to take four or five households per cluster in Wave 1 and the decision to place a cluster in Wave 1 or 2 were decided at random; this means that the unequal number of households per cluster would not have disturbed the equal probability of selection for households. Every adult member (18 years of age or older) within a household was included in the survey. Five thousand six hundred and seventy-five (5,675) respondents of 6,700 contacted agreed to participate and therefore were sent a questionnaire. Four thousand nine hundred and twenty (4,920) respondents either sent the questionnaire in or completed the interview over the telephone. III. SAMPLING ERROR AND STATISTICAL ACCURACY Like all survey data, the resulting statistical estimates are subject to sampling error which is presented at the 95 percent confidence limit. The sampling error for four products each with a different incidence of use is presented in Table 3-1. This error is calculated by product because the analyses are done by product. The confidence bounds or level of statistical precision were deemed acceptable for the intended purposes. This precision was in fact achieved. 3-2 ------- Table 3-1 has been prepared under the assumption of simple random sampling. The sample design actually used was a two-stage sample, with all adults over 18 years old in a selected household interviewed. Because this sample is made up of clusters of households in the same general vicinity, as well as multiple members of the same household, variance estimates made using the assumption of simple random sampling can either understate or overstate (this is a rare occurrence) variance. Comparisons are made in Appendix A which compare estimates of variance made under the assumption of simple random sampling, with estimates which take into account the complex sample design used. These comparisons indicate that the effect of the complex sample design was negligible. This being the case, estimates based upon simple random sampling can be used for reference in the absence of estimates of variance based upon the complex sample design. Table 3-1: Chlorocarbon Household Survey Sampling tolerance using a 95% level of confidence in estimating a proportion True Value of Proportion estimated p = 0.01 p = 0.1 p = 0.3 p = 0.5 or or or or 0.99 0.9 0.7 0.5 Incidence of use of product: Highest (54%) 2680 respondents ±0.004 +0.012 +0.018 +0.019 Moderate (22%) 1104 respondents +0.006 +0.018 +0.028 +0.030 Moderately rare ( 6%) 290 respondents +0.012 +0.035 +0.054 +0.059 Rarest (1.4%) 69 respondents +0.024 +0.072 +0.110 ±0.120 3-3 ------- IV. VARIANCE ESTIMATION This survey consists of a two-stage cluster sample in which the first stage units consist of telephone clusters and the second stage units consist of households. The selected households are also made up of clusters of people, but no subsampling is performed within the household. All persons in the selected households over 18 years old are included in the survey. Ratio Estimation The vast majority of estimates produced from this survey are ratio estimates (i.e., both numerator and denominator are random variables) of the form: Total Use Total Number of Users This ratio was calculated separately for the 32 product types. Because all respondents had approximately an equal probability of selection the two waves of the survey were simply added together to form the ratio: Wave I Total Use + Wave 2 Total Use Wave 1 Users + Wave 2 Users If the numerator is represented by Y and the denominator by X then the estimates are of the form: Y R = Y Variance of a Ratio The variance of this ratio, VR, can be estimated by the following: [S2 + R2S2 - 2RS 1 X where Sy2 is the estimated variance of Y, Sx2 is the estimated variance of X and SYX is the estimated covariance of X and Y. 3-4 ------- Because of the independence of the two waves the variance of Y can be estimated by: 222 S = S + S Y Y, Y, where Y^^ is the total for Wave 1 and Y, is the total for Wave 2 . These totals are made up of the sums of n-^ and n2 clusters, which have been selected with probability proportionate to size and essentially with replacement. For this situation an estimate of the variance of Y^, and similarly for Y2, is n^ times the sample variance of the cluster totals, Y^ i=l,...n1: S2 = n I(Y. - Y.)2/n -I Y i ~ i The same types of estimates were used to estimate Vy2 . To estimate the covariance of Y and X, Syxf the estimates over the two waves were summed (due to independence) : SXY The covariance terms were estimated for each wave by finding the simple covariance between the cluster totals and the number of users in the cluster. For wave 1 this yields the following: XIY: i Variance was estimated by product type for the following ratio estimates: percent recent users, months since last use, uses per year, minutes of use (last use) , ounces used per year, and ounces per year/uses per year. To investigate the effect of the sample design upon the estimated variance the variances for many of the variables listed above were calculated for nine product types as if the responses were from a simple random sample, ie. , a standard statistical package was used to estimate variance. The ratios of the estimated standard error, using the previously described procedure, to the standard error based upon simple random sampling were formed. The maximum ratio found was 1.085 and the minimum was .936, with the vast majority between .96 and 1.04. This suggests that the clustering had a minimal impact on the precision of the survey. 3-5 ------- Confidence Intervals The estimated variance of the ratio mean discussed above was used to construct an approximate 95% confidence interval. This was done using the following formula: R ± 1.96 These intervals can also be interpreted as giving the values of R that would be accepted based upon the following test: [R - R ] < 1.96 It should be remembered that these intervals are based upon the normal distribution. The right skewed nature of the variables (primarily estimating amount used) will tend to make this approximation questionable for ratios based upon 50 respondents or fewer. The actual results of the variance estimation for each product and each variable are presented in Appendix A. 3-6 ------- Section 4 RESULTS: COMPARISONS AND ANALYSES ACROSS PROHUCTS I. TOTAL NUMBER OF PRODUCTS USED A. Products "Ever Used" Respondents have, on the average, used slightly fewer than seven products in their lifetime, to date. As can be seen in Table 4-1, the mean number of products "ever used" is 6.93 and the median number is 6.0. Table 4-2 presents the frequency distribution for the total number of products ever used. Four and five products were the number most often used by respondents. Seventy-eight percent of the respondents used 10 or fewer products and less than 1 percent used 22 or more products. As can be seen in Table 4-3, five percent of the respondents have never used any of the products. The percentiles increase steadily to 32 products at the maximum percentile. B. Products Used Within the Last Twelve Months During the last 12 months, respondents on the average, used almost five products. As can be seen in Table 4-4, the mean number of products used during this period is 4.94 and the median number is 4.00. Table 4-5 presents the frequency distribution for the total number of products of the 32 which were used during the last 12 months. Most people used three or four products during the previous 12 months. Almost 90 percent used 10 or fewer products. Fewer than 1 percent used 18 or more products during this period. As Table 4-6 shows, ten percent of the respondents did not use any of the products during the 12 months prior to the survey. These percentiles also increase steadily with 18 products being used at the 99th percentile and 32 being used at the maximum percentile. II. RANK-ORDERINGS OF PRODUCTS BY QUESTION AND SELECTED CONTRIBUTIONS TO TOTAL EXPOSURE For all key questions, tables are presented in which variables are rank-ordered from the highest to the lowest value. 4-1 ------- Table 4-1: Descriptive statistics for total number of products ever used (N=4920) Mean Median Standard deviation 6.93 6.00 5.08 Table 4-2: Frequency distribution of total products "ever used" Number of products used 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 30 32 Frequency 299 330 365 427 432 435 371 330 316 302 227 204 180 139 120 93 83 66 61 40 35 17 15 8 9 7 1 4 1 1 2 Percent 6.1 6.7 7.4 8.7 8.8 8.8 7.5 6.7 6.4 6.1 4.6 4.1 3.7 2.8 2.4 1.9 1.7 1.3 1.2 0.3 0.7 0.3 0.3 0.2 0.2 0.1 0.0 0.1 0.0 0.0 0.0 Cumulative Frequency 299 629 994 1421 1853 2288 2659 2989 3305 3607 3834 4038 4218 4357 4477 4570 4653 4719 4780 4820 4855 4872 4887 4895 4904 4911 4912 4916 4917 4918 4920 Cumulative Percent 6.1 12.8 20.2 28.9 37.7 46.5 54.0 60.8 67.2 73.3 77.9 82.1 85.7 88.6 91.0 92.9 94.6 95.9 97.2 98.0 98.7 99.0 99.3 99.5 99.7 99.8 99.8 99.9 99.9 100.0 100.0 4-2 ------- Table 4-3: Percentile rankings for total number of products ever used (N=4920) Minimum 1% 5% 10% 25% 0 0 0 1 3 Median 75% 90% 95% 99% Maximum 6 10 14 17 21 32 Table 4-4: Descriptive statistics for total number of products used during last 12 months Mean 4.94 Median 4.00 Standard deviation 4.18 4-3 ------- Table 4-5: Frequency distribution of total products used during the last 12 months Number of products used 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 32 Frequency 528 533 558 614 482 414 371 305 237 221 139 123 94 89 60 42 35 19 13 12 7 5 5 3 4 1 2 1 1 2 Percent 10.7 10.8 11.3 12.5 9.8 8.4 7.5 6.2 4.8 4.5 2.8 2.5 1.9 1.8 1.2 0.9 0.7 0.4 0.3 0.2 0.1 0.1 0.1 0.1 0.1 0.0 0.0 0.0 0.0 0.0 Cumulative Frequency 525 1061 1619 2233 2715 3129 3500 3805 4042 4263 4402 4525 4619 4708 4768 4810 4845 4864 4877 4889 4896 4901 4906 4909 4913 4914 4916 4917 4918 4920 Cumulative Percent 10.7 21.6 32.9 45.4 55.2 63.6 71.1 77.3 82.2 86.6 89.5 92.0 93.9 95.7 96.9 97.8 98.5 98.9 99.1 99.4 99.5 99.6 99.7 99.8 99.9 99.9 99.9 99.9 100.0 100.0 Table 4-6: Percentile rankings for total number of products used during the last 12 months Minimum 1% 5% 10% 25% 0 0 0 0 2 Median 75% 90% 95% 99% Maximum 4 7 11 13 18 32 4-4 ------- This gives some indication of how to summarize the data for the products relative to each other. Another column appears for minutes of use, minutes in the room after use, and ounces used per year. This column indicates the average percent of use due to each product type. This is calculated by adding up the minutes or ounces for all 32 products and then calculating the percentage of the total for each product. This allows for subtracting the percentage of minutes of use if it is eliminated for one or more products. Table 4-7 presents the rank orderings of products for the variable "incidence of use". As can be seen, the highest incidence of "ever used" products is for contact cements, super glues, and spray adhesives, with 60.6 percent. This may be partially because some respondents included the more common white paste glues. The second two highest incidences of "ever used" products are for latex paint, with 55.2 percent and wood stains, varnishes, and finishes, with 42.9 percent. The lowest incidence of "ever used" products is for automotive products. Transmission cleaners are lowest with only 2.1 percent of respondents ever using them. The next two lowest are gasket removers with 2.7 percent and brake guieters/cleaners with 2.6 percent. Table 4-8 presents the rank orderings of products for the variable "last time the product was used, in months". Spray shoe polish was last used, on the average, 42.1 months ago. This is the longest period since last use and this may reflect the fact that many manufacturers are discontinuing its production. The glass frosting, tints, and artificial snow category is the next longest period, last used 34.2 months ago. Oil paint is the third longest period, last used 30.4 months ago. The most recent last use falls to other lubricants (nonautomotive) with 5.0 months, on the average, since last use; contact cements, super glues, and spray adhesives with 5.2 months since last use; and spray lubricants (automotive) with 6.3 months since last use. Table 4-9 presents the rank orderings for products for the variable "number of uses of the product within the last 12 months". By far, the product most used within the last 12 months is typewriter correction fluid with 40.0 uses. There is a drop to the next two highest products, solvent cleaners with 16.5 uses during the previous 12 months and spot removers with 15.6 uses. The three products least used within the last 12 months are outdoor water repellents with 2.1 mean uses, transmission cleaners with 2.3 mean uses, and gasket removers with 2.5 mean uses. 4-5 ------- Table 4-7: Rank orderings of incidence of use (ever used) for all products Product Contact cement/Super glues/Spray adhesive Latex paint Wood stains/Varnishes/Finishes Spot removers Paint thinners Water repellents Aerosol spray paint (nonautomotive) Wood/Floor/Paneling cleaners Other lubricants (nonautomotive) Paint removers/Strippers Oil paint Solvent cleaners Typewriter correction fluids Carburetor cleaners Spray lubricants for cars Silicone lubricants (nonautomotive) Engine degreasers Tire/Hubcap cleaners Primers (nonautomotive) Specialized electronic cleaners Aerosol spray paint for cars Spray shoe polish Glass frostings/Tints/Artificial snow Outdoor water repellent Auto spray primers Aerosol rust removers Battery terminal protectors Adhesive removers Ignition/Wire dryers Gasket removers Brake quieters/Cleaners Transmission cleaners Ql Yes % 60.6 55.2 42.9 39.1 35.7 35.8 35.4 34.9 34.3 30.5 29.9 28.1 25.9 21.9 17.9 17.7 17.2 15.9 13.9 13.1 12.1 11.7 10.3 9.2 8.7 8.2 6.7 5.7 4.8 2.7 2.6 2.1 Ql Number of Respondents 2982 2717 2113 1924 1756 1762 1743 1719 1695 1498 1471 1382 1276 1075 884 870 847 783 684 645 597 575 509 454 429 403 330 284 237 132 130 103 4-6 ------- Table 4-8: Rank orderings of last time product was used in months for all products Q2 Product Mean months Spray shoe polish Glass frostings/Tints/Artificial snow Oil paint Paint removers/Strippers Outdoor water repellents Auto spray primers Wood stains/Varnishes/Finishes Ignition/Wire dryers Gasket removers Primers (nonautomotive) Adhesive removers Paint thinners Aerosol spray paint for cars Water repellents Aerosol spray paint (nonautomotive) Latex paint Transmission cleaners Engine degreasers Aerosol rust removers Spot removers Battery terminal protectors Brake quieters/Cleaners Carburetor cleaners Wood/Floor/Paneling cleaners Solvent cleaners Specialized electronic cleaners Tire/Hubcap cleaners Typewriter correction fluid Silicone lubricants (nonautomotive) Spray lubricants for cars Contact cement/Super glues/ Spray adhesives Other lubricants (nonautomotive) 42.1 34.2 30.4 28.9 24.6 24.1 23.2 22.8 22.4 22.0 21.6 21.5 20.8 20.5 17.2 16.7 16.7 16.5 15.1 14.7 14.0 13.3 13.1 12.6 9.9 7.9 7.2 6.9 6.5 6.3 5.2 5.0 4-7 ------- Table 4-9: Rank orderings of number of uses of the product within the last 12 months for all products Product Q3 Mean uses Typewriter correction fluid 40.0 Solvent cleaners 16.5 Spot removers 15.6 Specialized electronic cleaners 13.4 Tire/Hubcap cleaners 11.1 Other lubricants (nonautomotive) 10.6 Silicone lubricants (nonautomotive) 10.3 Spray lubricants for cars 10.3 Spray shoe polish 10.3 Contact cement/Super glues/Spray adhesives 8.9 Wood/Floor/Panel cleaners 8.5 Paint thinners 6.8 Auto spray primers 6.4 Aerosol rust removers 6.2 Oil paint 5.7 Aerosol spray paint for cars 4 .5 Aerosol spray paint (nonautomotive) 4.2 Engine degreasers 4.2 Adhesive removers 4 . 2 Wood stains/Varnishes/Finishes 4.2 Latex paint 3 . 9 Battery terminal protectors 3.9 Carburetor cleaners 3.8 Paint removers/Strippers 3.7 Water repellents 3.5 Primers (nonautomotive) 3.4 Brake guieters/Cleaners 3 . 0 Ignition/Wire dryers 3 . 0 Glass frostings/Tints/Artificial snow 2.8 Gasket removers 2 . 5 Transmission cleaners 2.3 Outdoor water repellents 2 .1 4-8 ------- Table 4-10 presents the rank orderings and the average percent of use for all products for the variable "time spent using the product". As might be expected, the most time was spent using latex paint (295.1 mean minutes) and oil paint (194.1 mean minutes). However, latex and oil paint do not contain the study solvents. Of the other products which are thought to contain the solvents the three highest number of minutes are: paint removers/strippers with 125.6 mean number of minutes; adhesive removers with 121.0 mean number of minutes; and wood stains, varnishes, and finishes with 117.2 mean number of minutes. The least amount of time using a product is for ignition/wire dryers at 7.2 mean minutes, spray shoe polish at 7.5 mean minutes, and typewriter correction fluid at 7.6 mean minutes. Column 2 indicates the average percentage of use (as minutes of use) due to each product type. Each amount shown is the percentage of minutes of use which would be eliminated if the use of any given product is eliminated. Table 4-11 presents the rank orderings and the average percent of use for all products for the variable "time spent in the room after last use". The mean number of minutes spent in the room after use of the product is greatest for the glass frostings, tints, and artificial snow category, with 137.9 mean minutes; next highest for typewriter correction fluid with 128.4 mean minutes; and third highest for adhesive removers with 119.3 mean minutes. The automotive products have the lowest amount of time spent in the room because most are used outside or briefly inside the garage. Column 2 indicates the average percent of use (as minutes in the room after use) due to each product type. Each figure is the percentage of minutes in the room after use which would be eliminated if use of any given product is eliminated. Table 4-12 presents the rank orderings and average percent of use for all products for the variable "amount of product used in ounces per year". As might be expected, products used for large jobs have the most ounces used per year. Latex and oil paint have the highest number of ounces used with 371.3 and 168.9 ounces, respectively. However, these two products do not contain the solvents of interest. Of the products with brands thought to contain chlorinated solvents, the top three number of ounces used per year are: outdoor water repellents with 148.7 ounces; 4-9 ------- Table 4-10: Rank orderings and average percent of time spent using product for all products Product Latex paint Oil paint Paint removers/ strippers Adhesive removers Wood stains/Varnishes/Finishes Outdoor water repellents Primers (nonautomotive) Wood/Floor/Paneling cleaners Auto spray primers Aerosol spray paint for cars Aerosol spray paint (nonautomotive) Paint thinners Engine degreasers Solvent cleaners Glass frostings/Tints/Artificial Snow Transmission cleaners Gasket removers Brake quieters/Cleaners Tire/Hubcap cleaners Aerosol rust removers Contact cement/ Super glues/ Spray adhesives Water repellents Carburetor cleaners Spot removers Silicone lubricants (nonautomotive) Spray lubricants for cars Battery terminal protectors Specialized electronic cleaners Other lubricants (nonautomotive) Typewriter correction fluid Spray shoe polish Ignition/Wire dryers Average percent Q4 of use Mean (as minutes minutes of use) using due to each product product type 295.1 194.1 125.6 121.0 117.2 104.9 91.3 74.0 51.5 42.8 39.5 39.4 29.8 29.5 29.5 27.9 23.6 23.4 22.6 18.6 15.6 14.5 13.6 10.7 10.4 9.9 9.6 9.5 8.1 7.6 7.5 7.2 18.2% 11.9% 7.7 7.4 7.2 6.5 5.6 4.6 3.2 2.6 2.4 2.4 1.8 1.8 1.8 1.7 1.5 1.4 1.4 1.1 1.0 0.9 0.8 0.7 0.6 0.6 0.6 0.6 0.5 0.5 0.5 0.4 4-10 ------- Table 4-11: Rank orderings and average percent of time spent in the room after last use for all products Product Glass frostings/Tints/Artificial snow Typewriter correction fluids Adhesive removers Specialized electronic cleaners Oil paint Wood/Floor/Paneling cleaners Wood stains/Varnishes/Finishes Latex paint Contact cement/Super Glues/Spray Adhesives Other lubricants (nonautomotive) Silicone lubricants (nonautomotive) Spot removers Water repellents Solvent cleaners Paint thinners Spray shoe polish Paint removers/Strippers Gasket removers Primers (nonautomotive) Aerosol rust removers Aerosol spray paint (nonautomotive) Auto spray primers Aerosol spray paint for cars Brake quieters/Cleaners Outdoor water repellents Carburetor cleaners Ignition/Wire dryers Transmission cleaners Spray lubricants for cars Engine degreasers Battery terminal protectors Tire/Hubcap cleaners Average percent of use (as Q5 minutes in the mean room after use) minutes due to each in room product type 137.9 128.4 119.3 117.2 100.5 96.7 93.4 91.4 88.9 84.1 65.8 43.8 38.2 33.3 32.9 31.5 31.4 27.6 22.3 15.1 12.7 11.4 10.7 10.3 8.3 7.5 6.4 6.2 4.5 4.5 3.2 1.5 9.3% 8.6% 8.0% 7.9% 6.8% 6.5% 6.3% 6.1% 6.0% 5.7% 4.4% 2.9% 2.6% 2.2% 2.2% 2.1% 2.1% 1.9% 1.5% 1.0% 0.9% 0.8% 0.7% 0.7% 0.6% 0.5% 0.4% 0.4% 0.3% 0.3% 0.2% 0.1% 4-11 ------- Table 4-12: Rank orderings and average percent of use for amount of product used in ounces per year for all products Product Latex paint Oil paint Outdoor water repellents Auto spray primers Paint thinners Primers (nonautomotive) Wood stains/Varnishes/Finishes Paint removers/Strippers Solvent cleaners Engine degreasers Aerosol spray paint for cars Transmission cleaners Adhesive removers Tire/Hubcap cleaners Aerosol spray paint (nonautomotive) Wood/Floor/Paneling cleaners Spot removers Carburetor cleaners Spray lubricants for cars Aerosol rust removers Battery terminal protectors Glass f rostings/Tints/Artif icial snow Gasket removers Silicone lubricants (nonautomotive) Brake quieters/Cleaners Water repellents Spray shoe polish Other lubricants (nonautomotive) Specialized electronic cleaners Ignition/Wire dryers Contact cement/Super glues/Spray adhesives Typewriter correction fluid Q7 Mean ounces per year 371.3 168.9 148.7 70.4 69.5 68.4 65.1 63.7 58.1 46.9 44.9 37.7 34.5 31.6 30.7 28.4 26.1 22.0 18.6 18.2 16.4 13.8 13.3 12.5 11.7 11.3 9.9 9.9 9.5 9.0 7.5 4.1 Average percent of use (as ounces per year) due to each product type 23.9% 10.9% 9.6% 4.5% 4.5% 4.4% 4.2% 4.1% 3.7% 3.0% 2.9% 2.4% 2.2% 2.0% 2.0% 1.8% 1.7% 1.4% 1.2% 1.2% 1.1% 0.9% 0.9% 0.8% 0.8% 0.7% 0.6% 0.6% 0.6% 0.6% 0.5% 0.3% 4-12 ------- automotive spray primers with 70.4 ounces; and paint thinners with 69.5 ounces. While typewriter correction fluid and contact cement, super glues, and spray adhesives are frequently used, only relatively small amounts were used, namely: 4.1 ounces per year for the former and 7.5 for the latter. Column 2 indicates the average percent of use (as ounces per year) due to each product type. Ounces per year was a variable derived from determining the size of can used and the amount or number of cans used. Each number shows the percentage of ounces per year which would be eliminated if the use of any given product is eliminated. Table 4-13 presents the rank orderings for all products for the variable "whether or not a door or window was open to the outside". The highest percentage of respondents kept a door or window open when using nonautomotive primers (78%), latex paint (76%), outdoor water repellents (73%), and paint removers/ strippers (71%). Most of the automotive products were used on the outside so this guestion was irrelevant for these respondents. Table 4-14 presents the rank orderings for all products for the variable "whether an exhaust fan was on during use". The highest percentages of respondents having an exhaust fan on are 25 percent for spot removers and 23 percent for adhesive removers. Four products with 16 percent of respondents having an exhaust fan on are: primers (nonautomotive); oil paint; paint removers/strippers; and latex paint. Most users of automotive products used them outside and, again, this question does not apply. Table 4-15 presents the rank orderings for all products for the variable "whether the inside door to the room was kept open." For those respondents who used the product inside, the majority left the door to the room open while using the product. The highest percentages leaving the door open were for latex paint (85%), wood/floor/paneling cleaners (83%), and spot removers (80%). Once again, the majority of the automotive users used the product outside and, therefore, this guestion does not apply. Table 4-16 presents the rank orderings for all products for the variable "whether directions on the label were read." The least used product, transmission cleaners, had the highest percentage (86%) of respondents who read the directions on the label. The majority of the respondents for most products said that they did read the directions on the label. Fewer than 50 percent read the directions on the label for only two products, nonautomotive "other" lubricants and typewriter correction fluid. 4-13 ------- Table 4-13: Rank orderings of those saying they kept a door or window open to the outside for all products Q9a Product Yes i Primers (nonautomotive) 78 Latex paint 76 Outdoor water repellents 73 Paint removers/Strippers 71 Oil paint 70 Adhesive removers 67 Paint thinners 67 Wood stains/Varnishes/Finishes 64 Aerosol spray paint (nonautomotive) 63 Aerosol rust removers 61 Wood/Floor/Paneling cleaners 59 Solvent cleaners 57 Silicone lubricants (nonautomotive) 52 Spot removers 45 Other lubricants (nonautomotive) 43 Spray shoe polish 41 Contact cement/Super glues/Spray adhesives 41 Water repellents 40 Specialized electronic cleaners 32 Typewriter correction fluid 26 Glass frostings/Tints/Artificial snow 24 Transmission cleaners N/A Battery terminal protectors N/A Carburetor cleaners N/A Brake quieters/Cleaners N/A Auto spray primers N/A Gasket removers N/A Engine degreasers N/A Spray lubricants for cars N/A Aerosol spray paint for cars N/A Tire/Hubcap cleaners N/A Ignition/Wire dryers N/A 4-14 ------- Table 4-14: Rank orderings of those saying they kept an exhaust fan on during use for all products Q9b Product Yes 3 Spot removers 25 Adhesive removers 23 Primers (nonautomotive) 16 Oil paint 16 Paint removers/Strippers 16 Latex paint 16 Wood stains/Varnishes/Finishes 15 Solvent cleaners 15 Aerosol rust removers 13 Spray shoe polish 11 Glass frostings/Tints/Artificial snow 11 Wood/Floor/Paneling cleaners 11 Aerosol spray paint (nonautomotive) 10 Paint thinners 10 Contact cement/Super glues/Spray adhesives 8 Typewriter correction fluid 8 Silicone lubricants (nonautomotive) 8 Water repellents 8 Outdoor water repellents 7 Other lubricants (nonautoraotive) 6 Specialized electronic cleaners 6 Carburetor cleaners N/A Battery terminal protectors N/A Engine degreasers N/A Brake quieters/Cleaners N/A Auto spray primers N/A Gasket removers N/A Transmission cleaners N/A Spray lubricants for cars N/A Aerosol spray paint for cars N/A Tire/Hubcap cleaners N/A Ignition/Wire dryers N/A 4-15 ------- Table 4-15: Rank orderings of those saying they kept the door to the room open during use Q9c Product Yes ' Latex paint 85 Wood/Floor/Paneling cleaners 83 Spot removers 80 Adhesive removers 79 Oil paint 77 Spray shoe polish 76 Contact cement/Super glues/Spray adhesives 75 Typewriter correction fluid 74 Wood stains/Varnishes/Finishes 74 Solvent cleaners 74 Water repellents 73 Glass frostings/Tints/Artificial snow 72 Silicone lubricants (nonautomotive) 71 Specialized electronic cleaners 70 Other lubricants (nonautomotive) 70 Paint removers/Strippers 69 Primers (nonautomotive) 68 Paint thinners 68 Outdoor water repellents 65 Aerosol spray paint (nonautomotive) 61 Aerosol rust removers 57 Transmission cleaners N/A Battery terminal protectors N/A Carburetor cleaners N/A Brake quieters/Cleaners N/A Auto spray primers N/A Gasket removers N/A Engine degreasers N/A Spray lubricants for cars N/A Aerosol spray paint for cars N/A Tire/Hubcap cleaners N/A Ignition/Wire dryers N/A 4-16 ------- Table 4-16: Rank orderings of those saying they read the directions on the label for last use of product Q9d Product Yes < Transmission cleaners 86 Water repellents 83 Adhesive removers 82 Outdoor water repellents 81 Paint removers/Strippers 80 Engine degreasers 78 Wood stains/Varnishes/Finishes 77 Spot removers 77 Primers (nonautomotive) 74 Gasket removers 74 Specialized electronic cleaners 74 Carburetor cleaners 74 Aerosol spray paint (nonautomotive) 73 Wood/Floor/Paneling cleaners 72 Aerosol spray paint for cars 72 Brake quieters/Cleaners 72 Ignition/Wire dryers 71 Spray shoe polish 71 Battery terminal protectors 71 Glass frostings/Tints/Artificial snow 71 Contact cement/Super glues/Spray adhesives 70 Oil paint 69 Auto spray primers 69 Solvent cleaners 68 Aerosol rust removers 68 Tire/Hubcap cleaners 67 Latex paint 64 Silicone lubricants (nonautomotive) 61 Paint thinners 59 Spray lubricants for cars 55 Other lubricants (nonautomotive) 45 Typewriter correction fluid 39 4-17 ------- III. CROSS USE OF PRODUCTS A. Users of Aerosol Spray Paint Who Use Other Products Table 4-17 presents the percentage of users who have "ever used" aerosol spray paint who have also "ever used" the other 31 products. Of particular interest is whether a user of one paint product also uses other paint products. As might be expected, the percentage of users of aerosol spray paint who also used other paint products is high. Almost 76 percent of aerosol spray paint users have also used latex paint; 45.3 percent have also used oil paint; 64.1 percent have also used wood stains, varnishes, and finishes; 49.6 percent have also used paint removers/strippers; and 54.9 percent have also used paint thinners. Please also note that the percentage of users of aerosol spray paint who use one of the other products may be low because overall use of the product is low. This is true for many automotive products. Table 4-18 presents the percentage of aerosol spray paint users who used it in the last 12 months who also used the other 31 products during the last 12 months. Once again, a fairly high percentage of users of aerosol spray paint during the last 12 months also used other paint products during the last 12 months. Almost 58 percent of aerosol spray paint "recent" users also used latex paint; almost 28 percent also used oil paint; almost 45 percent also used wood stains, varnishes, or finishes; 29 percent also used paint removers/strippers; and 39 percent also used paint thinners. B. Users of Carburetor Cleaners Who Use Other Products Table 4-19 presents the percentage of users of carburetor cleaners who have "ever" used it who also have used the other 31 products. Of particular interest is whether a user of one automotive product also uses other automotive products. Fifty- four percent of users of carburetor cleaners also use engine degreasers; 34.4 percent also use aerosol spray paint for cars; 29.3 percent also use auto spray primers; 49.3 percent also use spray lubricants for cars; 7.2 percent also use transmission cleaners; 20.3 percent also use battery terminal protectors; 9.9 percent also use brake quieters/cleaners; 9.3 percent also use gasket removers; 32.1 percent also use tire/hubcap cleaners; and 15.9 percent also use ignition and wire dryers. Again, please note that the percentage of users of carburetor cleaners who use one of the other automotive products may seem low because overall 4-18 ------- Table 4-17: Percentage of "Ever Users" of Aerosol Spray Paint who "Ever Used" other products (N=1746 users) Other Products Used Percentage "Ever Users" Using 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. Spray Shoe Polish Water Repellents/Protectors Spot Removers Solvent-type Cleaning Fluids Wood/Floor/Paneling Cleaners Typewriter Correction Fluid Contact Cement, Super Glues, and Spray Adhesives Adhesive Removers Silicone Lubricants (nonauto) Other Lubricants (nonauto) Specialized Electronic Cleaners Latex Paint Oil Paint Wood Stains, Varnishes, and Finishes Paint Removers/Strippers Paint Thinners Aerosol Spray Paint (nonauto) Primers and Special Primers (nonauto) Aerosol Rust Removers Outdoor Water Repellents Glass Frostings, Tints, and Artificial Engine Degreasers Carburetor Cleaners Aerosol Spray Paint for Cars Auto Spray Primers Spray Lubricants for Cars Transmission Cleaners Battery Terminal Protectors Brake Quieters/Cleaners Gasket Removers Tire/Hubcap Cleaners Ignition and Wire Dryers 15.6% 47.6% 48.8% 38.8% 45.7% 36.4% 79.3% 96.8% 29.0% 52.3% 20.6% 75.6% 45.3% 64.1% 49.6% 54.9% 100.0% 27.4% 15.1% 15.8% Snow 16.8% 26.2% 31.1% 19.2% 14.9% 28.3% 3.1% 10.5% 4.6% 4.7% 23.4% 8.8% 4-19 ------- Table 4-18: Percentage of Users in the Last Twelve Months of Aerosol Spray Paint Who Also Used Other Products "In the Last Twelve Months" (N=1190 recent users) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. Other Products Used Percentage Spray Shoe Polish Water Repellents/Protectors Spot Removers Solvent-type Cleaning Fluids Wood/Floor/Paneling Cleaners Typewriter Correction Fluid Contact Cement, Super Glues, and Spray Adhesives Adhesive Removers Silicons Lubricants (nonauto) Other Lubricants (nonauto) Specialized Electronic Cleaners Latex Paint Oil Paint Wood Stains, Varnishes, and Finishes Paint Removers/Strippers Paint Thinners Aerosol Spray Paint (nonauto) Primers and Special Primers (nonauto) Aerosol Rust Removers Outdoor Water Repellents of "Recent Users" Using 7.6% 30.5% 36.8% 35.4% 35.9% 32.1% 74.9% 6.7% 29.3% 50.9% 18.1% 57.9% 27.5% 44.5% 29.1% 39.2% 100.0% 21.5% 13.4% 11.0% Glass Frostings, Tints, and Artificial Snow 9.7% Engine Degreasers Carburetor Cleaners Aerosol Spray Paint for Cars Auto Spray Primers Spray Lubricants for Cars Transmission Cleaners Battery Terminal Protectors Brake Quieters/Cleaners Gasket Removers Tire/Hubcap Cleaners Ignition and Wire Dryers 21.5% 26.5% 14.1% 9.6% 26.0% 27.7% 8.7% 3.7% 3.4% 22.7% 6.1% 4-20 ------- Table 4-19: Percentage of "Ever Users" of Carburetor Cleaners Who "Ever Used" Other Products (N=1078 users) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. Other Products Used Percentage Spray Shoe Polish Water Repellents/Protectors Spot Removers Solvent-type Cleaning Fluids Wood/Floor/Paneling Cleaners Typewriter Correction Fluid Contact Cement, Super Glues, and Spray Adhesives Adhesive Removers Silicone Lubricants (nonauto) Other Lubricants (nonauto) Specialized Electronic Cleaners Latex Paint Oil Paint Wood Stains, Varnishes, and Finishes Paint Removers/Strippers Paint Thinners Aerosol Spray Paint (nonauto) Primers and Special Primers (nonauto) Aerosol Rust Removers Outdoor Water Repellents Glass Frostings, Tints, and Artificial Snow Engine Degreasers Carburetor Cleaners Aerosol Spray Paint for Cars Auto Spray Primers Spray Lubricants for Cars Transmission Cleaners Battery Terminal Protectors Brake Quieters/Cleaners Gasket Removers Tire/Hubcap Cleaners Ignition and Wire Dryers of "Ever Users" Using 16.1% 44.8% 36.9% 43.0% 33.8% 26.5% 79.3% 9.2% 34.6% 55.4% 28.0% 72.4% 44.2% 59.5% 44.9% 56.1% 50.5% 24.0% 18.0% 16.8% 14.9% 54.3% 100.0% 34.4% 29.3% 49.3% 7.2% 20.3% 9.9% 9.3% 32.1% 15.9% 4-21 ------- use of the product is low. Actually, a sizable number of users of carburetor cleaners use other automotive products. Table 4-20 presents the percentage of users of carburetor cleaners used within the last 12 months who also used the other 31 products during the last 12 months. Again, of particular interest is the percentage of recent users of carburetor cleaners who also used other automotive products. A relatively high percentage of recent carburetor cleaner users also used other automotive products, especially when the low usage of some of these products is taken into account. Almost 47 percent of carburetor cleaner users using it during the past 12 months also used engine degreasers; 26.5 percent also used aerosol spray paint for cars; 20.3 percent also used auto spray primers; 48.8 percent also used spray lubricants for cars; 6.5 percent also used transmission cleaners, the least used product in the survey; 16.4 percent used battery terminal protectors; 9.2 percent also used brake quieters/cleaners; 7.5 percent also used gasket removers; 31.0 percent also used tire/hubcap cleaners; and 11.3 percent also used ignition and wire dryers. IV. SPECIALTY GROUP USERS A. Automotive Users Table 4-21 presents the statistics for four major usage variables for respondents using any one or more of the ten automotive products. These respondents are assessed as a group. The total minutes spent using these products (last use); the total minutes spent in the room after use (last use); the ounces used of products per year; and number of automotive products used during the past 12 months by those who used at least one automotive product are presented. The mean, median, standard deviation, and percentile rankings are given for each usage variable. As can be seen in Table 4-21, the mean number of minutes spent by respondents using any of the ten automotive products is 49.82 minutes; the mean number of minutes spent in the room after use (in this case, probably a garage) is 14.04; and the mean number of ounces of automotive products used per year is 69.22. Of special interest, for those using an automotive product during the last 12 months, the mean number of other automotive products used during the same period is 2.31 products. 4-22 ------- Table 4-20: Percentage of "Users in the Last Twelve Months" of Carburetor Cleaners Who Also Used" Other Products "In the Last Twelve Months" (N=812 recent users) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. Other Products Used Percentage Spray Shoe Polish Water Repellents/Protectors Spot Removers Solvent-type Cleaning Fluids Wood/Floor/Paneling Cleaners Typewriter Correction Fluid Contact Cement, Super Glues, and Spray Adhesives Adhesive Removers Silicone Lubricants (nonauto) Other Lubricants (nonauto) Specialized Electronic Cleaners Latex Paint Oil Paint Wood Stains, Varnishes, and Finishes Paint Removers/Strippers Paint Thinners Aerosol Spray Paint (nonauto) Primers and Special Primers (nonauto) Aerosol Rust Removers Outdoor Water Repellents Glass Frostings, Tints, and Artificial Snow Engine Degreasers Carburetor Cleaners Aerosol Spray Paint for Cars Auto Spray Primers Spray Lubricants for Cars Transmission Cleaners Battery Terminal Protectors Brake Quieters/Cleaners Gasket Removers Tire/Hubcap Cleaners Ignition and Wire Dryers of "Recent Users" Using 8.1% 30.3% 26.3% 40.4% 27.1% 24.0% 73.5% 6.1% 31.4% 53.9% 26.0% 52.1% 25.4% 38.8% 25.2% 39.8% 38.8% 15.9% 15.6% 10.6% 9.1% 46.9% 100.0% 26.5% 20.3% 48.8% 6.5% 16.4% 9.2% 7.5% 31.0% 11.3% 4-23 ------- Table 4-21: Statistics for usage variables for automotive users (respondents using any one or more of the ten automotive products are assessed as a group) A. Total Minutes of Use, Last Use N = 1777 Minimum .02 Mean = 49.82 1% .08 Median = 20.00 5% .75 Standard 10% 2.00 Deviation = 91.02 25% 6.00 B. Total Minutes in Room After Use, Last (includes zeros for nonexposure) * N = 1775 Minimum Mean =14.04 1% 0.00 Median =0.00 5% 0.00 Standard 10% 0.00 Deviation = 97.54 25% 0.00 *most automotive use is outside C. Ounces of Automotive Products Used Per N = 1701 Minimum .12 Mean = 69.22 1% .52 Median =20.00 5% 1.56 Standard 10% 3.00 Deviation = 214.65 25% 8.00 D. Number of Automotive Products Used by One Automotive Product* N = 1794 Minimum 1.00 Mean =2.31 1% 1.00 Median =2.00 5% 1.00 Standard 10% 1.00 Deviation =1.66 25% 1.00 *used during the last twelve months 75% 90% 95% 99% 100% Use 75% 90% 95% 99% 100% Year 75% 90% 95% 99% 100% Those 75% 90% 95% 99% 100% 57.16 122.20 197.80 405.89 1130.00 0.00 10.00 60.00 281.00 234.00 52.00 150.80 265.97 862.80 5628.00 Who Used at Least 3.00 5.00 6.00 8.00 11.00 4-24 ------- B. Paint Users Table 4-22 presents the statistics for four major usage variables for respondents using one or more of the four paint products assessed as a group. The four paint products included are wood stains, varnishes, and finishes; paint removers/strippers; paint thinners; and nonautomotive aerosol spray paint. Latex and oil paint are excluded from this assessment because they are not thought to contain methylene chloride or its substitutes. As can be seen in Table 4-22, the mean number of minutes spent using any or all of the four paint products is 154.75 minutes; the mean number of minutes spent in the room after use is 60.71 minutes; and the mean number of ounces of these paint products used per year is 112.08. Again of special interest, for those using one of these paint products during the last 12 months, the mean number of other paint products used during the same period is 1.99 products. Therefore, users of one of these four paint products also use on the average another two of these products, indicating paint products are used as a group. 4-25 ------- Table 4-22: Statistics for usage variables for Paint Users (respondents using one or more of four paint products) A. B. C. D. Total Minutes of N = 2353 Mean = 154.75 Median = 60.00 Standard Deviation = 311. Total Minutes in (includes zeros N = 2343 Mean = 60.71 Median = 1.00 Standard Deviation = 193. Ounces of Paint N = 2310 Mean = 112.08 Median = 35.00 Standard Deviation = 263. Number of Paint Use, Last Use Minimum . 02 1% .25 5% 3.00 10% 5.37 80 25% 20.00 75% 90% 95% 99% 100% 180.00 360.00 541.50 1440.00 7220.00 Room After Use, Last Use for nonexposure) Minimum 0.00 1% 0.00 5% 0.00 10% 0.00 85 25% 0.00 Products Used Per Year Minimum .03 1% l.OO 5% 3.25 10% 6.50 02 25% 16.00 Products Used by Those 75% 90% 95% 99% 100% 75% 90% 95% 99% 100% Who 30.00 150.00 314.00 813.60 4325.00 109.78 259.00 448.00 1020.48 5248.00 Used at Least One Paint Product* N = 2380 Mean =1.99 Median = 2.00 Standard Deviation = 1.13 Minimum 1.00 1% 1.00 5% 1.00 10% 1.00 25% 1.00 75% 90% 95% 99% 100% 3.00 4.00 4.00 5.00 5.00 *used during the last twelve months 4-26 ------- V. GENDER AND AGE DIFFERENCES IN PRODUCT USE. BY PRODUCT A. Gender Differences Table 4-23 summarizes gender differences for three product use variables, by product. The three variables are uses per year (i.e., number of uses during the last 12 months), minutes spent using the product during the last use, and ounces of the product used per year. There is also a column indicating the percentages of users who are male and female. There are no significant differences at a "p-value" or "p" (i.e., level of significance) equal to or less than .05 for any of the three variables for the following products: Spray shoe polish, Adhesive removers, Oil paint, Paint thinners, Primers and special primers, Battery terminal protectors, and Ignition and wire dryers. Fifty-six percent of the users of water repellents are female, and there is no significant difference for uses per year; there is a significant difference at p = .010 for minutes of last use, with males spending more time than females; and there is a significant difference (p = .007) for ounces per year, again with males using more than females. Sixty-eight percent of the users of spot removers are female, and there is a significant difference (p = .000) for uses per year with females using spot removers more often; there is a significant difference (p = .051) for minutes of use with males spending more time; and there is a significant difference (p = .000) for ounces per year with females using more of the product. Males spend more time using spot removers, and females use more of the product. Fifty-three percent of the users of solvent type cleaning fluids are male, and there is a significant difference (p = .002) for uses per year with females using more of the product. Similarly, 70 percent of the users of wood floor and paneling cleaners are female, and there is a significant difference (p = .050) for uses per year with females using the product more often. Sixty-two percent of the users of typewriter correction fluid are female, and there is a significant difference (p = .050) for uses per year with females using it more often than males. Fifty-one percent of the users of contact cement, super glues and spray adhesives are female, and there is a significant 4-27 ------- Table 4-23: Gender differences in product use by product KEY Blank - Not Significant M - Significant Male Higher F - Significant Female Higher (P-value for significant differences in product use are in parentheses for the last three columns) (The probability for significant differences is only approximate for subgroups with less than 50 respondents) PRODUCT 1. SPRAY SHOE POLISH 2. WATER REPELLENTS/PROTECTORS (FOR SUEDE, LEATHER, AND CLOTH) 3. SPOT REMOVERS 4. SOLVENT-TYPE CLEANING FLUIDS OR DEGREASERS 5. WOOD FLOOR AND PANELING CLEANERS 6. TYPEWRITER CORRECTION FLUID 7. CONTACT CEMENT, SUPER GLUES AND SPRAY ADHESIVES 8. ADHESIVE REMOVERS (GENERAL PURPOSE, TILE, AND WALLPAPER) 9. SILICONE LUBRICANTS (EXCLUDING AUTOMOTIVE) 10. OTHER LUBRICANTS (EXCLUDING AUTOMOTIVE) 11. SPECIALIZED ELECTRONIC CLEANERS FOR TV, VCR, RAZOR, ETC.) 12. LATEX PAINT 13. OIL PAINT 14. WOOD STAINS, VARNISHES AND FINISHES 15. PAINT REMOVERS/STRIPPERS % MALE/FEMALE 47/53 (127)/(143) 44/56 (461)/(586) 32/68 (447)/(951) 53/47 (591)/(524) 30/70 (394)/(919) 38/62 (435)/(711) 49/51 (1322)/(1375) 53/47 (93)/(82) 70/30 (531)/(228) 61/39 (941)/(593) 69/31 (382)/(171) 51/49 (916)/(880) 57/43 (424)/(319) 51/49 (647)/(621) 52/48 (399)/(368) USES PER YEAR F (.000) F (.002) F (.050) F (.050) M (.000) M (.000) M (.001) MINUTES LAST USE M (.010) M (.051) F (.015) F (.044) OUNCES PER YEAR M (.007) F (.000) M (.011) M ( .000) M (.000) M (.000) M (.018) 4-28 ------- Table 4-23 (Continued) PRODUCT 16. PAINT THINNERS 17. AEROSOL SPRAY PAINT (EXCLUDING AUTOMOTIVE) 18. PRIMERS AND SPECIAL PRIMERS (EXCLUDING AUTOMOTIVE) 19. AEROSOL RUST REMOVERS 20. OUTDOOR WATER REPELLENTS (FOR WOOD OR CEMENT) 21. GLASS FROSTINGS, WINDOW TINTS, AND ARTIFICIAL SNOW 22. ENGINE DEGREASERS 23. CARBURETOR CLEANERS 24. AEROSOL SPRAY PAINT FOR CARS 25. AUTO SPRAY PRIMERS 26. SPRAY LUBRICANTS FOR CARS 27. TRANSMISSION CLEANERS 28. BATTERY TERMINAL PROTECTORS 29. BRAKE QUIETERS/CLEANERS 30. GASKET REMOVERS 31. TIRE/HUBCAP CLEANERS 32. IGNITION AND WIRE DRYERS % MALE/FEMALE 61/39 (671)/(433) 54/46 (642)/(547) 66/34 (268)/(138) 74/26 (217)/(76) 65/35 (161)/(86) 38/62 (107)/(175) 90/10 (529)/(59) 88/12 (714)/(97) 88/12 (326)/(44) 88/12 (23DA31) 85/15 (661)/(117) 69/31 (52)/(23) 88/12 (204)/(28) 94/6 (92)/(6) 89/11 (70)/(9) 64/36 (445)/(251) 84/16 (123)7(24) USES PER YEAR M (.002) M (.000) M (.035) M (.000) M (.000) M (.000) M (.019) M (.031) M (.017) M (.002) MINUTES LAST USE M (.003) M (.017) OUNCES PER YEAR M (.019) M (.004) M (.000) M (.001) M (.000) M (.007) 4-29 ------- difference (p = .011) for ounces per year with males using more of the product. Seventy percent of the users of silicone lubricants (excluding automotive) are male, and there is a significant difference (p = .000) for uses per year with males using it more often; and there is also a significant difference (p = .000) for ounces per year with males using more of it. Similarly, 61 percent of the users of other lubricants (excluding automotive) are male, and there is a significant difference (p = .000) for uses per year with males using it more often; and there is a significant difference (p = .000) for ounces per year with males using more of it. Sixty-nine percent of the users of specialized electronic cleaners are male, and there is a significant difference (p = .001) for uses per year with males using them more often. Only a slight majority (51%) of the users of latex paint are male, and there is only a significant difference (p = .000) for ounces per year with males using more of it. Fifty-one percent of the users of wood stains, varnishes and finishes are male, and there is a significant difference (p = .015) for minutes of last use with females spending more time; and there is a significant difference (p = .018) for ounces per year with males using more of the product. Females spend more time using latex paint while males use more of it, indicating that males are perhaps faster painters. Fifty-two percent of the users of paint removers/strippers are male, and the only significant difference (p = .044) is for minutes of last use with females spending more time using the product. Fifty-four percent of the users of aerosol spray paint (excluding automotive) are male, and there is a significant difference (p = .002) for uses per year with males using the product more often; and there is a significant difference (p = .019) for ounces per year with males using more of the product. Seventy-four percent of the users of aerosol rust removers are male, and there is a significant difference (p = .000) for uses per year with males using the product more often. Sixty-two percent of the users of glass frostings, window tints and artificial snow are female, and there is a significant difference (p = .004) for ounces per year with males using more of it. Ninety percent of the users of engine degreasers are male, and there is a significant difference (p = .035) for uses per year with males using it more often. Eighty-eight percent of the users of carburetor cleaners are male, and there is a significant difference for uses per year with males using it more often; and there is also a significant difference for ounces per year with males using more of it. Eighty-eight percent of the users of aerosol spray paint for cars are male, and again there is a significant difference (p = .000) for uses per year with males 4-30 ------- using it more often; and there is a significant difference for ounces per year with males using more of it. Eighty-five percent of the users of spray lubricants for cars are male, and there are significant differences for all three variables with males using the product more often, spending more time using it, and using more of the product. Sixty-nine percent of the users of transmission cleaners are male, and there is a significant difference (p = .019) for uses per year with males using it more often; and there is a significant difference (p = .007) for ounces per year with males using more of it. Ninety-four percent of the users of brake quieters/cleaners are male, and there is a significant difference for uses per year with males using it more often; and there is a significant difference for minutes of last use with males spending more time using it. Eighty-nine percent of the users of gasket removers are male, and there is a significant difference (p = .017) for uses per year with males using it more often. Finally, 64 percent of the users of tire/hubcap cleaners are male, and there is a significant difference for uses per year with males using it more often. It should be noted that the probability of significant differences is only approximate where a subgroup has fewer than 50. This is the case for female users of aerosol spray paint, auto spray primers, transmission cleaners, battery terminal protectors, brake quieters/cleaners, gasket removers, and ignition and wire dryers. In summary, there are gender differences for product usage for a number of products. The most pronounced differences are for lubricants and automotive products with males being higher where there are significant differences. B. Age Differences Table 4-24 summarizes age differences for three product use variables, by product. Additional, more detailed comments to Table 4-24 are provided in the narrative description of each product. The three variables are the same as those analyzed for gender, namely: uses per year (i.e., number of uses during the last 12 months), minutes spent using the product during the last use, and ounces of the product used per year. There are five age groups, namely: 18-30 years, 31-40 years, 41-50 years, 51-60 years, and 61-96 years. A few products had no significant differences for any of the three product usage variables. These are: other lubricants (excluding automotive); specialized electronic cleaners; wood 4-31 ------- Table 4-24: KEY Blank - Age Differences Not Significant * - Significant Age Differences, No Pattern Discernible *Decreasing - Significant Age Differences, Generally Decreasing Use With Age JDecreasing - Significant Age Differences, I Decreasing Use With Age Age differences in product use by product (P-value for significant differences in product use are in parentheses) (The probability for significant differences is only approximate for subgroups with less than 50 respondents) - ... PRODUCT 1. SPRAY SHOE POLISH 2. WATER REPELLENTS/PROTECTORS (FOR SUEDE, LEATHER, AND CLOTH) 3. SPOT REMOVERS 4. SOLVENT-TYPE CLEANING FLUIDS OR DEGREASERS 5. WOOD FLOOR AND PANELING CLEANERS 6. TYPEWRITER CORRECTION FLUID 7. CONTACT CEMENT, SUPER GLUES AND SPRAY ADHESIVES 8. ADHESIVE REMOVERS (GENERAL PURPOSE, TILE, AND WALLPAPER) 9. SILICONE LUBRICANTS (EXCLUDING AUTOMOTIVE) 10. OTHER LUBRICANTS (EXCLUDING AUTOMOTIVE) 11. SPECIALIZED ELECTRONIC CLEANERS FOR TV, VCR, RAZOR, ETC.) 12. LATEX PAINT 13. OIL PAINT 14. WOOD STAINS, VARNISHES AND FINISHES 15. PAINT REMOVERS/STRIPPERS UbLb PER YEAR » (.030) Decreasing (.039) Decreasing <(.001) * (.050) (.037) * (.029) MINUTES LAST USE * (.020) Decreasing (.005) Decreasing (.023) Decreasing <(.Q01) Decreasing <(.001) Decreasing (.005) * (.011) Decreasing (.010) * (0.40) OUNCES PER YEAR Decreasing (.041) Decreasing <(.000) Decreasing <(.001) * (.031) Decreasing (.035) *Decreasing <(.001) Decreasing (.004) 4-32 ------- Table 4-24 (Continued) PRODUCT 16. PAINT WINNERS 17. AEROSOL SPRAY PAINT (EXCLUDING AUTOMOTIVE) 18. PRIMERS AND SPECIAL PRIMERS (EXCLUDING AUTOMOTIVE) 19. AEROSOL RUST REMOVERS 20. OUTDOOR WATER REPELLENTS (FOR WOOD OR CEMENT) 21. GLASS FROSTINGS, WINDOW TINTS, AND ARTIFICIAL SNOW 22. ENGINE DEGREASERS 23. CARBURETOR CLEANERS 24. AEROSOL SPRAY PAINT FOR CARS 25. AUTO SPRAY PRIMERS 26. SPRAY LUBRICANTS FOR CARS 27. TRANSMISSION CLEANERS 28. BATTERY TERMINAL PROTECTORS 29, BRAKE QUIETERS/CLEANERS 30. GASKET REMOVERS 31. TIRE/HUBCAP CLEANERS 32. IGNITION AND WIRE DRYERS USES PER YEAR * (.029) *Decreasing <(.OQ1) Decreasing <(.001) Decreasing <(.001) Decreasing (.003) Decreasing (.003) MINUTES LAST USE # (.038) 'Decreasing (.032) Decreasing <(.001) Decreasing (.004) Decreasing <(.001) Decreasing <(.OQ1) Decreasing <(.021) Decreasing (.032) Decreasing <(.001) OUNCES PER YEAR Decreasing <(.001) Decreasing <(.OQ1) Decreasing <(.001) Decreasing (.002) Decreasing <(.001) M- (.035) » (.014) # <(.001) Decreasing (.046) 4-33 ------- stains, varnishes and finishes; aerosol spray paint (excluding automotive); aerosol rust removers; outdoor water repellents; and ignition and wire dryers. Detailed comments which elaborate the summary table follow for each of the products. Spray Shoe Polish The differences for uses per year by age are not significant. There are significant differences for minutes of use by age. Respondents from 18 through 30 years used spray shoe polish for more time than for those from 31 through 60 years. There are significant differences in the ounces used per year, by age. Although the mean ounces used per year for the 51 through 60 year age group is greater than for other age groups, the variance of the data in this age group is greater also. As a result, the data are consistent with the interpretation that the ounces used per year decreases with increasing age. Water Repellents/Protectors There are significant differences in the number of uses per year by age. The number of uses per year increases slightly from age groups 18 through 30 to 41 through 50. The number of uses per year decreases from age groups 41 through 50 and 61 through 96 years. There are significant differences for minutes of use by age. Respondents up to 40 years old used water repellents for more time on their last use than respondents 41 or older. Minutes of use decreased with increasing age. The differences for ounces used per year by age are not significant. Spot Removers There are significant differences for uses per year by age. The uses per year decrease with age with respondents in age group 18 through 30 using the product more often than in age group 61 through 96. There are significant differences for minutes of use by age. The minutes of use decrease with increasing age. There are very significant differences between ounces used per year by age. The ounces used per year decrease with increasing age. Solvent Type Cleaning Fluids The differences for uses per year by age are not significant. There are very significant differences for minutes of use by age. Although the mean minutes per use for the 51 through 60 year age group is greater than for other age groups, the variance of the data in this age group is greater also. As a result, the data are consistent with the interpretation that the minutes per use decrease with 4-34 ------- increasing age. The differences for ounces used per year by age are not significant. Wood Floor and Panel Cleaners There are very significant differences for uses per year by age. Respondents in age group 18 through 30 use wood floor and panel cleaners more often than age groups 31 through 60 which in turn use the product more often than respondents 61 through 96 years old. The differences for minutes of use by age are not significant. There are very significant differences for ounces used per year by age. Respondents in age group 18 through 30 used more wood floor and panel cleaner per year than age groups 31 through 60 which in turn use more product than respondents 61 through 96 years old. Typewriter Correction Fluid The differences for uses per year by age are not significant. There are very significant differences for minutes of use by age. The minutes per use decreases with increasing age. The differences for ounces used per year by age are not significant. Contact Cement, Super Glues and Spray Adhesives The difference for uses per year by age are not significant. There are significant differences for minutes of use by age. The minutes per use decreases with increasing age. There are significant differences for ounces used per year by age. Respondents in the oldest age group (61 through 96 years) used less contact cements and glues than younger respondents. Adhesive Removers Due to the small number of respondents in each age group, the statistical tests are only approximate. There are significant differences in the number of uses per year by age. The 41 through 50 age group has the lowest number of uses per year while the 18 through 30 age group has the highest mean uses per year. There are significant differences for minutes of use by age. The minutes of use increase slightly from age group 18 through 30 to age group 31 through 40. The minutes of use decreases from age group 31 through 40 to age group 61 through 96. The differences for ounces used per year by age are not significant. Silicone Lubricants The differences for uses per year by age are not significant. There are significant differences for minutes of use by age. The minutes per use decreases with increasing age. There are significant differences for ounces used per year. The ounces used per year decreases with increasing age. 4-35 ------- Other Lubricants The differences for uses per year by age are not significant. The differences for minutes of use by age are not significant. The differences for ounces used per year by age are not significant. Specialized Electronic Cleaners The differences for uses per year by age are not significant. The differences for minutes of use by age are not significant. The differences for ounces used per year by age are not significant. Latex Paint There are significant differences in the number of uses per year by age. The 51 through 60 age group has the lowest number of uses per year while the 18 through 30 age group has the highest mean uses per year. The differences for minutes of use by age are not significant. There are very significant differences for ounces used per year by age. The 41 through 50 age group uses the largest quantity of product per year while the 61 through 96 age group uses the least amount of product per year. Oil Paint There are significant differences in the number of uses per year by age. The 51 through 60 age group has a lower number of uses per year than other age groups. The differences for minutes of use by age are not significant. The differences for ounces used per year by age are not significant. Wood Stains, Varnishes, and Cleaners The differences for uses per year by age are not significant. The differences for minutes of use by age are not significant. The differences for minutes of use by age are not significant. The differences for ounces used per year by age are not significant. Paint Removers/Strippers The differences for uses per year by age are not significant. There are significant differences for minutes of use by age. Respondents ages 18 through 30 had the smallest minutes of use while those in the 41 through 50 year age group had the largest mean minutes of use. There are significant differences for the ounces used per year by age. The 61 through 96 age group has the smallest quantity usage of paint removers/strippers while the 41 through 50 year age group has the largest mean product usage. Paint Thinners There are significant differences for uses per year by age. The 51 through 60 year age group has the smallest mean number of uses per year. The 18 4-36 ------- through 30 age group has the largest mean number of uses per year. The differences for minutes of use by age are not significant. The differences for ounces used per year by age are not significant. Aerosol Spray Paint The differences for uses per year by age are not significant. The differences for minutes of use by age are not significant. The differences for ounces used per year by age are not significant. Primers and Special Primers The differences for uses per year by age are not significant. There are significant differences for minutes of use by age. Respondents aged 41 through 50 have the smallest minutes of use while those in the 51 through 60 age group had the largest mean minutes of use. The differences for ounces used per year by age are not significant. Aerosol Rust Removers The differences for uses per year by age are not significant. The differences for minutes of use by age are not significant. The differences for ounces used per year by age are not significant. Outdoor Water Repellents The differences for uses per year by age are not significant. The differences for minutes of use by age are not significant. The differences for ounces used per year by age are not significant. Glass Frostings. Window Tints, Artificial Snow Due to the small number of respondents in each age group, the statistical tests are only approximate. The differences for uses per year by age are not significant. There are significant differences for minutes of use by age. The minutes per use decrease with increasing age. The differences for ounces used per year by age are not significant. Engine Degreasers The differences for uses per year by age are not significant. There are very significant differences for minutes of use by age. The minutes per use decreases with increasing age. There are very significant differences for ounces used per year. The ounces used per year decrease with increasing age. Carburetor Cleaners There are very significant differences for uses per year by age. Respondents in age group 51 through 60 use the product less often than in other age groups. The 18 through 30 age group has the highest mean number of uses per year. There are 4-37 ------- significant differences for minutes of use by age. The minutes of use decrease with increasing age. There are very significant differences between ounces used per year by age. The ounces used per year decrease with increasing age. Aerosol Spray Paint for Cars Due to the small number of respondents in each age group the statistical tests are only approximate. There are very significant differences for uses per year by age. The number of uses per year decrease with increasing age. There are very significant differences for minutes of use by age. The minutes of use decrease with increasing age. There are very significant differences between ounces used per year by age. The ounces used per year decreases with increasing age. Auto Spray Primers Due to the small number of respondents in each age group, the statistical tests are only approximate. The differences for uses per year by age are not significant. There are very significant differences for minutes of use by age. The minutes of use decrease with increasing age. There are significant differences between ounces used per year by age. In general, the ounces used per year decreases with increasing age. Respondents from the 61 through 96 year age group use the smallest quantity of product while those in the 18 through 30 age group use the most product per year. Spray Lubricants for Cars There are very significant differences for uses per year by age. The number of uses per year decrease with increasing age. There are significant differences for minutes of use by age. Respondents ages 61 through 96 have the smallest minutes of use while those in the 41 through 50 age group had the largest mean minutes of use. There are very significant differences between ounces used per year by age. The ounces used per year decreases with increasing age. Transmission Cleaners Due to the very small number of respondents in each age group, the statistical tests are at best approximate. The statistical tests indicate that there are significant differences for uses per year by age. Note that all five respondents in the 51 through 60 age group reported one use per year; thus there is no variability in this group. The statistical test indicates that respondents ages 18 through 30 and 61 through 96 have mean responses greater than 1, the mean for ages 51 through 60. There 4-38 ------- are significant differences for minutes of use by age. In general, the minutes of use decrease with increasing age. The differences for ounces used per year by age are not significant. Battery Terminal Protectors Due to the small number of respondents in each age group, the statistical tests are only approximate. The differences for uses per year by age are not significant. The differences for minutes of use by age are not significant. There are significant differences for ounces used per year by age. The 41 through 50 age group uses the smallest quantity of product per year while the 31 through 40 age group has the largest mean ounces used per year. Brake Quieters/Cleaners Due to the very small number of respondents in each age group, the statistical tests are at best approximate. The differences for uses per year by age are not significant. The differences for minutes of use by age are not significant. The statistical tests indicate that there are significant differences for ounces used per year by age. The 61 through 96 age group has the smallest mean ounces used per year. The 51 through 60 age group has the largest mean ounces used per year. Gasket Removers Due to the very small number of respondents in each age group, the statistical tests are at best approximate. The differences for uses per year by age group are not significant. There are very significant differences for minutes of use by age. The minutes of use decrease with increasing age. There are very significant differences for ounces used per year by age. The 51 through 60 age group has the smallest mean ounces used per year. The 41 through 50 age group has the largest mean ounces used per year. Tire/Hubcap Cleaners There are significant differences for uses per year by age. The number of uses per year decrease with increasing age. The differences for minutes of use by age are not significant. There are significant differences between ounces used per year by age. The ounces used per year decrease with increasing age. Ignition and Wire Dryers The differences for uses per year by age are not significant. The differences for minutes of use by age are not significant. The differences for ounces used per year by age are not significant. In summary, where there is a discernible pattern of usage by age it is generally one of decreasing use with increasing age. 4-39 ------- VI. DIFFERENCES BETWEEN MAIL AND TELEPHONE COMPLETED QUESTIONNAIRES The differences between mail completed questionnaires and telephone completed questionnaires for this study were analyzed for the following variables: Uses per year of the product; Minutes of use for the last use of the product; and Ounces of the product used per year. Of the total of 4920 respondents with completed questionnaires, 1628 were completed by mail, 3281 were completed by telephone and the records for completion of 11 questionnaires are unresolved due to differences between the data file and the receipt control file. This analysis covers the 4909 questionnaires for which the method of completion is known at this time. The summary statistics provided for each completion method, by product and question, are: Number of responses analyzed; Mean of the responses; Standard error of the mean; and A Chi-square statistic and associated probability for testing for differences between the responses from the two methods of completing the questionnaire. For the data being analyzed, the statistical methods used work well if there are many respondents in each group. The standard error, chi-square and significance probability are only approximate when some groups have few respondents (in this case, say fewer than 40 respondents). After reviewing the statistical results, there is no statistical support for the hypothesis that the two groups, mail and telephone, have different responses. Seven of the 96 statistical tests are significant at the 5 percent level. This is close to the level of significance one would expect by chance. Only one test was significant at the .1 percent level (minutes of last use for Ignition and Wire Dryers). Since there was no corresponding significant difference in the ounces used per year for this product, this result may also be due to chance. The distribution of the significance probabilities suggests that there are no differences between the groups that cannot be easily explained by chance. 4-40 ------- Section 5 RESULTS: STATISTICAL ANALYSIS AND FINDINCS Product-by-Product Analysis I. SOURCES OF SAMPLING AND NONSAMPLING ERROR IN THE DATA The data presented in this report are based on a sample survey. As with all sample survey data, they are subject to both sampling and nonsampling error. Sampling error is the difference between what was obtained in the sample actually drawn and what would have been obtained had a complete census of the frame been conducted using the exact same methodology. The confidence intervals and standard errors presented in this report measure the sampling errors only. Nonsampling errors are those errors which are attributable to sources other than the statistical sampling procedures. There are various potential sources of sampling errors in any survey including this one. Although the impact of the errors on the estimates is generally not quantifiable, it is important to acknowledge these sources so that users of the data may be aware of their possible effects. Potential sources of nonsampling error include: nonresponse bias; misunderstood questions; and self reporting bias. These sources of nonsampling error are discussed below. Of the original 6700 respondents contacted for the survey, 5675 agreed to participate and 4920 actually sent the questionnaire in or completed the questionnaire as a followup telephone interview. The nonresponse bias is the difference between the data collected and that which would have been collected if all respondents originally sampled had completed the questionnaire. The nonresponse bias will be small if the decisions to complete the questionnaire or not are unrelated to the questionnaire responses, or equivalently if those who answered the questionnaire are representative of those who did not. Since the overall response rate was good (73%), the source of nonresponse bias should be small. In addition, we have no apparent reason to suspect that the two populations are necessarily different. Not all of the 4920 respondents answered all of the questions on the questionnaire. Some additional nonresponse bias might have been introduced on individual questions. Another source of nonsampling error results if the respondent misunderstands a question (e.g., responds with the quantity of product used when last used rather than for the entire last year, or reports use at work and home instead of just home use). Followup phone calls to verify unusual data values or 5-1 ------- fill in missing data were made whenever an answer appeared to be the result of any misunderstanding or skipped. In fact, this was done in 80 percent of mailed questionnaires. For example, if the person said that they used 600 ounces of typewriter correction fluid in the past year, this would have been recalled to question the obvious suspicion that they were including use at work rather than restricting their answer to use in the home. The data are user reported responses, not actual use measurements. This distinction should be made when interpreting the data, for example, user responses are subject to apparent rounding. Responses to quantitative questions appear to be rounded by the respondent to their closest convenient unit, i.e., responses are usually one week, two weeks, one month, two months, three months, six months, one year, two years, etc. and not four months and 11 days. Actual use would be expected to be spread evenly over time. The effect of rounding is to reduce the variance estimate. The unrounded data are not available for comparison. The effect of the rounding is expected to be small. In addition, user responses as opposed to use measurements may reflect influences such as social desirability. For example, respondents may have said they read and used the amount specified on the label more than they actually did. Finally, because the data are for the last use of the product, and not the typical (or average) use, the mean of the derived variables may be biased on the high side although the amount of bias is expected to be quite small. Pretesting showed that people feel that they can more accurately answer for the last use as opposed to generalizing over several nonroutine uses of the product and for this reason, the last use may be more accurate. II. DESCRIPTIVE STATISTICAL ASPECTS AND OVERVIEW OF THE DATA The subsections in Part III contain summaries of the data by product. Each summary presents a basic description of the data for each question. When reading the summary, please note that the number of data values being summarized for each question will differ because: Not all questions were to be answered by all respondents, e.g., respondents who had not used the product in the last year were not to answer Questions 4 through 9. The number of "Don't Know and "Not Ascertained" responses may be different for each question. Where respondent answers were inconsistent and the problem could not be resolved by a followup telephone call, a decision 5-2 ------- was made for the purposes of the analysis. Some of the decision rules to eliminate inconsistent responses were: If the answer to Question 1 (Have you ever used the product?) was "Don't Know" or "Not Ascertained" and any Questions 4 through 9 were answered, the respondent was assumed to be a recent user of the product. The respondent was assumed to have used the product in the last year if the stated number of uses in the last year (Question 3) was greater than 0. The answers to Questions 2 and 3 were sometimes inconsistent. If the product was last used either outside or both outside and in the garage, the answer to Question 5 (time spent in room after last use) was set to zero and the answers to Questions 9 a, b, and c, if present, were not used since they are not relevant for outside use. For the qualitative questions (e.g., Have you ever used the product? or Where did you use the product the last time you used it?) summary tables show the percent of the responses in each category. For quantitative questions (Questions 2, 3, 4, 5, and 7) summary tables show the mean, median, standard deviation, and selected percentiles of the distribution of the data. These values are a close approximation to the standard deviation and percentiles of the population; however, because the data are not from a simple random sample a better estimate of the variance (and standard deviation) is discussed under variance estimation and these results are found in Appendix A. The data for all the quantitative questions are positively skewed, with many small values and a few large values. A histogram of the data has a long tail on the high side of the distribution. A histogram of the logarithm of the nonzero data values is roughly bell shaped. The median of the data is the value for which half of the observations are smaller and half are larger. The median corresponds to the 50th percentile of the distribution. Because the data are positively skewed, the mean will be larger than the median. For the quantitative data in this survey the mean roughly corresponds to the 75th percentile of the distribution, i.e., roughly three-quarters of the data values are smaller than the mean of the data. The median is unaffected by the extreme observations in the data, and thus provides a measure of location of the data which is unaffected by the skewness. The mean and standard deviation are sensitive to the extreme data values. Thus errors in extreme data values will affect the mean and standard deviation more readily. 5-3 ------- As mentioned previously, respondents rounded their responses to the nearest convenient unit, i.e., 5, 10, 15 years rather than five years and two months. The respondent rounding of the data might have the following results on the reported statistics: The effect on the mean will be small and will decrease as the sample size increases. Standard deviations and confidence intervals will tend to be smaller than if the unrounded data had been available. The results of two derived variables (ounces used per year, and ounces per use) are reported. Ounces used per year is a variable derived from ascertaining the size of the can used in ounces times the amount or number of cans used. Ounces per use is then derived by dividing ounces used per year by Question 3, the number of times the product was used during the last 12 months. Assuming the data used to calculate these variables are unbiased: The mean of the derived variables will tend to be greater than the true mean of the derived variables. The standard deviation will tend to be greater than the true standard deviation. The median will be close to the true median. This discussion was intended to realistically present various sources of nonsampling error that should be taken into account when interpreting the data. These sources of error are inherent in a survey of this type and efforts were made to minimize their effects by wording questions in the most understandable way possible and by putting them in the time framework which best facilitated what was needed but also what the respondent could reasonably answer. The best way to take these sources of error into account when using the following sample statistics for the products is to remember that these statistics are only the best approximate measures of the statistics for the population as a whole and, therefore, the data should not be used as precise measures free of nonsampling error. III. FINDINGS FOR PRODUCTS The statistical findings for each of the 32 product types surveyed follow. The presentation of the findings will follow a question and answer format. There are nine major questions and some derived variables for each product which will be presented. The statistics to be presented will include the mean, median, and 5-4 ------- percentile rankings (100%, 95%, 90%, 50%, etc.) for each question or derived variable. The percentile rankings are presented for use in developing profiles of heavy, moderate, and light users of the products. All of the usage statistics will be used to calculate exposure assessments to the chemicals in these products. A few additional comments are necessary to clarify the presentation of the findings for each product. For each product, the findings for Question 1 and Question 2 address whether the respondent has "ever" used the product and when the last use occurred regardless of how long ago. Findings for Question 3 through Question 9 include only answers provided by respondents who used the product during the last 12 months. These respondents will be referred to as recent users. Furthermore, the answers to the first three parts to Question 9 entitled "protective measures" include only users who used the product on the inside of the home or garage since these questions are only relevant in that context. These respondents will be referred to as recent inside users. Due to the wide range of responses two decimal places are used for all data so that the precision of the smaller values is not lost. Finally, if there are few responses for a question, the extreme percentiles (e.g., 1% and 99%) cannot be estimated from the data and are shown as "" in the tables. 5-5 ------- PRODUCT-BY-PRODUCT ANAIYSIS 5-7 ------- SPRAY SHOE POLISH 5-9 ------- A. Product 1; Spray Shoe Polish Ql: Have you ever used spray shoe polish? Table A-l: Numbers and % of respondents ever using Spray Shoe Polish NumbersPercent Yes 575 11.7 No 4342 88.3 Total 4917* 100.0 *3 cases where information was not ascertained Table A-l shows that 11.7% of the total respondents have "ever" used spray shoe polish. This is a relatively low percentage when compared to this incidence for other products. Q2: When was the last time you used spray shoe polish? Table A-2: Last time Spray Shoe Polish was used in months (N=574 users) Mean # of months 42.10 Median # of months 12.50 Standard Deviation 61.60 As Table A-2 shows, the mean number of months since last use of spray shoe polish is 42.10 months. This is the longest period of time since last use for any of the thirty-two products. This may reflect that spray shoe polish has been discontinued by many manufacturers over the last few years. The median number of months is 12.50. 5-11 ------- The percentile rankings for time since last use are shown below: Table A-3: Percentile rankings for Spray Shoe Polish months since last use (N=574 users) Months Minimum 0.03 1% 0.03 5% 0.10 10% 0.33 25% 2.00 Median 12.50 75% 60.00 90% 120.00 95% 180.00 99% 270.00 Maximum 360.00 Table A-3 shows that 10th percentile users and below last used the product less than a month ago. The 75th percentile through the 100th percentile respondents report that they last used the product 5 years ago through 30 years ago and appears to be subject to rounding which was discussed earlier under aspects of the data (ie. 5, 10, 15 years rather than 5 years 3 months). The data is still usable for indicating the approximate last use, 5-12 ------- Q3: How many times have you used spray shoe polish in the last 12 months? Table A-4: Number of uses of Spray Shoe Polish within the last 12 months (N=266 recent users) Mean # of uses 10.28 Median # of uses 4.00 Standard deviation 20.10 The mean number of uses of the product in the last twelve months among users of the product in the last twelve months, was 10.28 and the median 4.0. Almost 49% of these users used the spray shoe polish three times or less in the last twelve months with 17.7% using it once; 19.5% using it twice; and 11.7% using it three times. Table A-5: Percentile rankings of number of uses of Spray Shoe Polish within the last 12 months (N=266 recent users) Uses Minimum 1.00 1% 1.00 5% 1.00 10% 1.00 25% 2.00 Median 4.00 75% 8.00 90% 24.30 95% 52.00 99% 111.26 Maximum 156.00 5-13 ------- Q4: How much time did you spend using spray shoe polish the last time you used it? Table A-6: Time spent using the Spray Shoe Polish, last time used (N=263 recent users) Mean # of minutes 7.49 Median # of minutes 5.00 Standard deviation 9.60 The mean and median number of minutes for using spray shoe polish are relatively low as would be expected for the time used polishing shoes. Table A-7: Percentile rankings for time spent using the Spray Shoe Polish last time used (N=263 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Minutes 0.02 0.03 0.25 0.50 2.00 5.00 10.00 18.00 30.00 60.00 60.00 The minimum percentile is .02 and the maximum percentile is 60 minutes. For higher percentiles, it may be that these respondents are polishing more than one pair of shoes at one time and, thus, spending more time. 5-14 ------- Q5: How much time did you spend in the room immediately after use the last time you used spray shoe polish? Table A-8: Time spent in the room after last use of Spray Shoe Polish (N=255 recent users) Mean # minutes in room 31.40 Median # minutes in room 5.00 Standard deviation 80.50 The mean number of minutes spent in the room after last use is 31.4 minutes as opposed to the median of five minutes. Table A-9: Percentile rankings for time spent in the room after last use including those who did not spend any time in room but used Spray Shoe Polish (N=255 recent users) Minutes Minimum 0.00 1% 0.00 5% 0.00 10% 0.00 25% 0.00 Median 5.00 75% 20.00 90% 120.00 95% 120.00 99% 480.00 Maximum 720.00 Respondents at the 25th percentile or less did not spend any time in the room after using spray shoe polish. Respondents at the higher percentile rankings spent from two to twelve hours. 5-15 ------- Table A-10: Percentile rankings for Spray Shoe Polish for time spent in the room after last use including only those who spent time in the room (N=189 who stayed in room) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Minutes 1.00 1.00 1.00 1.00 3.00 10.00 30.00 120.00 180.00 504.00 720.00 Table A-10 is similar to Table A-9 except it includes only users who did in fact stay in the room, therefore, all percentiles have values. 5-16 ------- Q6A: Which brand of spray shoe polish did you use the last time you used it? Table A-ll: Brand distribution for Spray Shoe Polish Brand category Frequency Percent Top brand Second highest brand Third highest brand Don't Knows and Not Ascertained All other named brands Total 83 40 10 67 70 270 30.7 14.8 3.7 24.8 26.0 100.0 Seventy-five percent (75.2%) of the users of the product specified a brand. The top three brands of spray shoe polish were used by 30.7%, 14.8% and 3.7% of the users, respectively. All other brands have a relatively low number of users. Q6B: Was the product in aerosol form? Table A-12: Percent of respondents saying Spray Shoe Polish is aerosol (N=265 recent users) Yes, product is aerosol 97.7% No, product is nonaerosol 2.3% The product was spray shoe polish so all items should be aerosol. Respondents said that the product was aerosol in 97.7% of the cases. The 2.3% saying it was nonaerosol either forgot to check the box indicating it was aerosol or perhaps used a spray pump and thought this was to be included under spray shoe polish. 5-17 ------- Q7: What size of spray shoe polish did you use the last time you used it? How much of a can or how many cans did you use during the past year? The two questions above were used to derive the variable called ounces per year. Table A-13: Amount of Spray Shoe Polish used in ounces (N=247 recent users) Mean ounces per year 9.90 Median ounces per year 4.50 Standard deviation 17.90 As might be expected, the mean ounces used per year for spray shoe polish is one of lowest amounts compared to the amount used of other products. Only the product categories of typewriter correction fluid, other lubricants, specialized electronic cleaners, and ignition and wire cleaners are as low. Table A-14: Percentile rankings for amount of Spray Shoe Polish used in ounces (N=247 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Ounces 0.04 0.20 0.63 1.00 2.00 4.50 10.00 24.00 36.00 99.36 180.00 The range between the minimum and maximum values in Table A-14 is quite substantial with the minimum ounces per year at .04 and the maximum ounces per year at 180.0. 5-18 ------- Q8: Where did you use spray shoe polish the last time you used it? Table A-15: Location of last use of the product (N=261 recent users) Basement 5.0% Living room 14.9% Other inside room 61.3% Several inside rooms 0.9% Garage 3.4% Outside 13.4% Garage & outside 1.1% Total 100.0% Most people (61.3%) used spray shoe polish in an "other inside room" such as the bedroom or den. Almost equal numbers used it in the living room (14.9%) and in the outside air (13.4%). The remainder used it in the basement (5.0%); in the garage (3.4%); in both the garage and the outside (1.1%); and in several inside rooms (.9%). 5-19 ------- Table A-16: Protective measures undertaken while using Spray Shoe Polish Yes No 1. Door or window open to the outside 40.5% 59.5% (N-222 recent inside users) 2. Exhaust fan on during use 10.7% 89.3% (N=224 recent inside users) 3. Whether inside door to room was open 76.0% 24.0% (N=225 recent inside users) 4. Whether directions on label were read 71.4% 28.6% (N=262 all recent users) The majority of the spray shoe polish users did not have a door or window open to the outside (59.5%); did not have an exhaust fan on during use (89.3%); had the inside door to the room opened (76.0%); and had read the directions on the label (71.4%). Table A-17 is a derived variable ounces per use and it is derived by dividing Question 7 (ounces per year) by Question 3 (# of times used in the last year). Table A-17: Ounces per use of Spray Shoe Polish (N=246 recent users) Mean # of ounces per use 2.39 Median # of ounces per use 1.00 Standard deviation 4.20 The mean ounces per use of spray shoe polish is 2.39, the median is 1.0. 5-20 ------- Table A-18: Percentile rankings of ounces per use of Spray Shoe Polish (N=246 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Ounces/Use 0.01 0.01 0.11 0.19 0.50 1.02 2.50 5.74 10.00 24.53 35.00 Table A-18 indicates that here is a large jump between the 95th percentile of 10.0 and the 99th percentile of 24.53 and the 100th percentile of 35.0. Table A-19: Respondent characteristics of Spray Shoe Polish users 1. Respondent age (N=269 recent users) Mean 2. Respondent gender Male (N=270 recent users) Female 3. Number of household members Mean (N=268 recent users) 4. Number of bedrooms Mean (N=269 recent users) = 44.40 years 47.0% 53.0% = 3.10 members = 2.90 bedrooms Table A-19 presents the respondent characteristics of spray shoe polish users. The mean age of these respondents is 44.40 years; 53% of the respondents are female and 47% are male; the mean number of household members is 3.10; and the mean number of bedrooms is 2.90. The statistics for the respondent characteristics of spray shoe polish users is almost identical to the characteristics of the total sample of respondents. 5-21 ------- WATER REPELLENTS/ PROTECTORS (FOR SUEDE, LEATHER, AND CLOTH) 5-23 ------- B. Product 2; Water Repellents Ql: Have you ever used water repellents? Table B-l: Numbers and % of respondents every using Water Repellents Numbers Percent Yes No Total 1762 3155 4917* 35.8 64.2 100.0 * 3 cases where information was not ascertained. Table B-l shows that 35.8% of the total respondents have "ever" used water repellents. This is a moderately high number when compared to the incidence of other products. It is comparable to spot removers (39%) ; wood floor and paneling cleaners (35%) ; other lubricants (35%) ; and aerosol spray paint excluding automotive (35%). Q2: When was the last time you used water repellents: Table B-2: Last time a Water Repellent was used in months (N=1757 users) Mean # of months 20.50 Median # of months 9.00 Standard deviation 3.60 As Table B~2 shows, the mean number of months water repellents were last used is 20.50 months. The median number of months water repellents were last used is 9.0 months. 5-25 ------- The percentile rankings for this question will now be presented. Table B-3: Percentile rankings for Water Repellents-months since last use (N=1757 users) Months Minimum 0.03 1% 0.07 5% 0.46 10% 1.00 25% 4.00 Median 9.00 75% 24.00 90% 60.00 95% 84.00 99% 156.00 Maximum 240.00 The percentile rankings for months since last use of water repellents range from a minimum of .03 to a maximum of 240.0. The increase from one percentile to another is sizable and steady. 5-26 ------- Q3: How many times have you used water repellents in the last 12 months? Table B-4: Number of uses of Water Repellents within the last 12 Months (N=1042 recent users) Mean # of uses 3.50 Median # of uses 2.00 Standard deviation 11.70 The mean number of uses of water repellents were used within the last 12 months is 3.50 and the median is 2.0. The majority (81.3%) used it three times or less with 38.4% using it once; 29.8% using it twice; and 13.1% using it three times. Table B-5: Percentile rankings of number of uses of Water Repellents within the last 12 months (N=1042 recent users) Uses Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum 1.00 1.00 1.00 1.00 1.00 2.00 3.00 6.00 10.00 35.70 300.00 The percentile rankings for number of uses of water repellents within the last 12 months ranges from a minimum of one time to a maximum of 300.0 uses. There is a large jump from the 99th percentile of 35.70 to the maximum of 300.0. The maximum percentile value suggests that this person used water repellent almost daily. 5-27 ------- Q4: How much time did you spend using water repellents the last time you used it? Table B-6: Time spent using Water Repellents last time used (N=1035 recent users) Mean # of minutes 14.46 Median # of minutes 10.00 Standard deviation 24.10 The mean number of minutes spent using water repellents is 14.46 and the median number of minutes is 10.0. Table B-7: Percentile rankings for time spent using Water Repellents last time used (N=1035 recent users) Minutes Minimum 0.02 1% 0.08 5% 0.50 10% 1.40 25% 3.00 Median 10.00 75% 15.00 90% 30.00 95% 60.00 99% 120.00 Maximum 480.00 The percentile rankings for minutes spent using the product range from a minimum of .02 to a maximum of 480.0. These results seem to be subject to respondent rounding. 5-28 ------- Q5: How much time did you spend in the room immediately after use the last time you used water repellents? Table B-8: Time spent in the room after use of Water Repellents (N=1025 recent users) Mean # of minutes Median # of minutes Standard deviation 37.95 3.00 111.40 The time spent in the room after use includes those respondents who said they did not spend any time in the room after using water repellents. The mean number of minutes spent in the room is 37.95 and the median number of minutes spent in the room is 3.0. Table B-9 shows that the 25th percentile and less had respondents who did not spend any time in the room after use. Table B-9: Percentile rankings for time spent in the room after use including those who did not spend any time in room but used Water Repellents (N=1025 recent users) Minutes Minimum 0.00 1% 0.00 5% 0.00 10% 0.00 25% 0.00 Median 3.00 75% 20.00 90% 120.00 95% 240.00 99% 480.00 Maximum 1800.00 The range of percentile rankings depicted in Table B-9 goes from a minimum of zero minutes to a maximum value suggests that this user may be overestimating or using water repellents for large jobs. 5-29 ------- Table B-10: Percentile rankings for Water Repellents for time spent in the room after use including only those who spent time in room (N=659 recent users who stayed in room) Minutes Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum 1.00 1.00 1.00 1.00 5.00 10.00 60.00 180.00 240.00 600.00 1800.00 Table B-10 presents the percentile rankings for the time spent in the room after use for only those respondents who did actually spend some time in the room (zeros are excluded). As can be seen, the 10th percentile and less are values of one minute and the remainder of the percentiles are higher in Table B-10 than in Table B-9 as can be expected. 5-30 ------- Q6A: Which brand of water repellents did you use the last time you used it? Table B-ll: Brand Distribution for Water Repellents Brand category Frequency Percent Top brand Second highest brand Third highest brand Don't Knows and Not Ascertained All other named brands Total 330 25 18 382 296 1051 31.5 2.4 1.7 36.4 28.0 100.0 Almost sixty-four percent of the users of water repellents in the last twelve months specified a brand. The most popular brand was used by 31.5% of the respondents using the product. The next two highest brands were used by 2.4% and 1.7% of users, respectively. Q6B: Was the product in aerosol form? Table B-12: Percent of respondents saying the Water Repellent is aerosol (N=1039 recent users) Yes, product is aerosol 72.1% No, product is nonaerosol 27.9% Seventy-two percent said the water repellent used was aerosol. 5-31 ------- Q7: What size of water repellent did you use the last time you used it? How much of a qan or how many cans did you use during the past year. These two questions above were used to derive the variable called ounces per year. Table B-13: Amount of Water Repellent used in ounces per year (N=976 recent users) Mean # of ounces per year 11.38 Median # of ounces per year 6.00 Standard deviation 22.00 The mean ounces of water repellent used per year is 11.38 and the median is 6.0. Table B-14: Percentile rankings for amount of Water Repellents used in ounces per year (N=976 recent users) Ounces Minimum 0.04 1% 0.47 5% 0.98 10% 1.43 25% 2.75 Median 6.00 75% 12.00 90% 24.00 95% 33.00 99% 121.84 Maximum 450.00 The range between the minimum and maximum values in Table B-14 is quite substantial with the minimum ounces per year at .04 and the maximum ounces per year at 450.0. 5-32 ------- Q8: Where did you use a water repellent the last time you use it? Table B-15: Location of where Water Repellents used last time (N=1034 recent users) Basement 10.5% Living room 13.5% Other inside room 44.7% Several inside rooms 1.5% Garage 9.0% Outside 19.6% Garage & outside 1.2% Most people used water repellents in an "other inside room" such as a bedroom or den while 19.6% used it outside; 13.5% used it in a living room; 10.5% used it in the basement; 9.0% used it in a garage; 1.5% used it in several inside rooms; and 1.2% used it both in the garage and outside. The relatively large number who said they used it in the garage, outside, or both in the garage and outside may suggest that some people mixed up the water repellent for cloth with outdoor water repellents although the latter is also asked in the questionnaire. 5-33 ------- Table B-16: Protective measures undertaken while using Water Repellents Yes No 1. Door or window open to the outside 39.8% 60.2% (N=816 recent inside users) 2. Exhaust fan on during use 7.7% 92.3% (N=822 recent inside users) 3. Whether inside door to room was open 72.8% 27.2% (N=810 recent users) 4. Whether directions on label was read 82.6% 17.4% (N=1034 all recent user) The majority of users in the last twelve months did not have a door or window open to the outside (60.2%); did not have an exhaust fan on during user (92.3%) kept the inside door to the room opened (72.8%); and did say they read the directions on the label (82.6%). Table B-17 indicates that the mean ounces per use is 6.2 ounces and the median is 2.8 ounces. Table B-17: Ounces per use of Water Repellents (N=974 recent users) Mean # of ounces per use 6.23 Median # of ounces per use 2.80 Standard deviation 12.80 Table B-18 presents the percentile rankings for this variable. The range is from a minimum of .01 to a maximum of 160 ounces. 5-34 ------- Table B-18: Percentile rankings of ounces per use of Water Repellents (N=974 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Ounces/use 0.01 0.10 0.38 0.63 1.33 2.75 6.56 13.00 18.00 61.00 160.00 Table B-19: Respondent characteristics for users of Water Repellents Respondent age (N=1046 recent users) Respondent gender (N=1047 recent users Number of household members (N=1048 recent users) Number of bedrooms (N=1048 recent users) Mean = 38.24 years Male = 44.1% Female = 55.9%% Mean = 3.19 Mean = 3.00 Table B-19 presents the respondent characteristics of those using water repellents in the last 12 months. The mean age of these respondents is 38.24 years; slightly more (55.9%) are female; the mean number of household members is 3.19; and the mean number of bedrooms is 3.0. When these characteristics are compared to those for the sample as a whole user of water repellents are slightly younger (38.24 compared to 44.3); about the same on the distribution of male and female; and about the same on the mean number of household members and number of bedrooms. 5-35 ------- SPOT REMOVERS 5-37 ------- C. Product 3; Spot Removers Ql: Have you ever used spot removers? Table C-l: Numbers and % of respondents ever using Spot Removers Yes No Total Numbers 1924 2993 4917* Percent 39.1 60.9 100.0 *3 cases where information was not ascertained Table C-l shows that 39.1% of the respondents have "ever" used spot removers. Q2: When was the last time you used spot removers? Table C-2: Last time a Spot Remover was used in months (N=1912 users) Mean # of months 14.70 Median # of months 3.00 Standard Deviation 31.20 As Table C-2 shows, the mean number of months since last use of spot removers is 14.70 months and the median is 3.0 months. 5-39 ------- The percentile rankings for time since last use are shown below: Table C-3: Percentile rankings for Spot Removers - - months since last use (N=1912 users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Months 0.03 0.03 0.03 0.10 0.46 3.00 12.00 36.00 60.00 180.00 360.00 Table C-3 shows that 25th percentile users and below last used the product less than a month ago. Respondents at the 75th percentile through the 10Oth percentile report that they "last used" the product 1 year ago through 30 years ago. It appears that their answers are subject to rounding which was discussed earlier. The data are still usable for indicating the approximate last use. 5-40 ------- Q3: How many times have you used spot removers in the last 12 months? Table C-4: Number of uses of Spot Removers within the last 12 months (N=1390 recent users) Mean # of uses Median # of uses Standard deviation 15.59 3.00 43.34 The mean number of times spot removers were used in the last twelve months is 15.59 and the median 3.0. Almost 51% of the respondents used a spot remover three times or less with 21.2% using it once; 18.7% using it twice; and 10.7% using it three times. Table C-5: Percentile rankings of number of uses of Spot Removers within the last 12 months (N=1390 recent users) Uses Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum 1.00 1.00 1.00 1.00 2.00 3.00 10.00 40.00 52.00 300.00 365.00 The percentile rankings for the number of uses of spot removers within the last 12 months range from a minimum of 1 time to a maximum of 365 times. 5-41 ------- Q4: How much time did you spend using spot removers the last time you used it? Table C-6: Time spent using a Spot Remover last time used (N=1385 recent users) Mean # of minutes 10.68 Median # of minutes 5.00 Standard deviation 22.36 The mean number of minutes using a spot remover the last time it was used by the respondent is 10.68 minutes and the median is 5.0 minutes. Table C-7: Percentile rankings for time spent using a Spot Remover the last time used (N=1385 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Minutes 0.02 0.03 0.08 0.25 2.00 5.00 10.00 30.00 30.00 120.00 360.00 The percentile rankings for the time spent using a spot remover the last time used range from a minimum of .02 minutes to a maximum of 360 minutes (6 hours). The higher values may reflect respondents who reported using laundry presoaks as spot removers such as Spray'n Wash when doing their laundry. 5-42 ------- Q5: How much time did you spend in the room immediately after use the last time you used spot removers? Table C-8: Time spent in the room after last use of Spot Removers (N=1362 recent users) Mean # minutes in room Median # minutes in room Standard deviation 43.65 5.00 106.97 The mean number of minutes spent in the room after last using spot removers is 43.65 minutes and the median is 5.0. Table C-9: Percentile rankings for time spent in the room after last use including those who did not spend any time in room but used Spot Removers (N=1362 recent users) Minutes Minimum 0.00 1% 0.00 5% 0.00 10% 0.00 25% 1.00 Median 5.00 75% 30.00 90% 120.00 95% 240.00 99% 480.00 Maximum 1440.00 The percentiles in Table C-9 include users of spot removers who spent no time in the room afterward. The respondents at the tenth percentile and less did not spend any time in the room after use. The range in the percentiles is from a minimum of zero to a maximum of 1440 minutes (24 hours). The responses seem to be subject to rounding, but can be used as approximate indicators of time spent in the room afterwards. 5-43 ------- Table C-10: Percentile rankings for Spot Removers for time spent in the room after last use including only those who spent time in the room (N=1105 recent users) Minutes Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum 1.00 1.00 1.00 1.00 3.00 10.00 52.00 180.00 300.00 480.00 1440.00 The percentile rankings in Table C-10 for time spent in the room afterwards includes only those respondents who used the product and did say that they spent some time in the room. These percentiles range from a minimum of one minute to a maximum of 1440 minutes (24 hours). 5-44 ------- Q6A: Which brand of spot removers did you use the last time you used it? Table C-ll: Brand distribution for Spot Removers Brand category Top brand Second highest brand Third highest brand Don't Knows and Not Ascertained All other named brands Total Frequency 357 114 80 304 546 1401 Percent 25.5 8.1 5.7 21.7 39.0 100.0 The top three brands of spot removers were used by 25.5%, 8.1% and 5.7% of users, respectively. These three brands together account for 39.3% of the use. One of the brands is a laundry presoak, an example of a laundry presoak named by respondents as spot removers. Q6B: Was the product in aerosol form? Table C-12: Percent of respondents saying Spot Remover is aerosol (N=1388 recent users) Yes, product is aerosol 43.9% No, product is nonaerosol 56.1% Almost 44.0% of the spot removers were aerosol. 5-45 ------- Q7: What size of spot remover did you use the last time you used it? How much of a can or how many cans did you use during the past year? The two questions above were used to derive the variable called ounces per year. Table C-13: Amount of product used per year in ounces (N=1281 recent users) Mean ounces per year 26.32 Median ounces per year 5.50 Standard deviation 90.10 The mean number of ounces of spot removers used per year is 26.32 and the median is 5.5. Once again this large amount is influenced by the respondents who listed laundry presoaks as spot removers. Table C-14: Percentile rankings for amount of Spot Removers used per year in ounces (N=1281 recent users) Ounces Minimum 0.01 1% 0.24 5% 0.60 10% 1.00 25% 2.00 Median 5.50 75% 16.00 90% 48.00 95% 119.20 99% 384.00 Maximum 1600.00 The range in the percentile rankings is quite substantial with a minimum of .01 ounces and a maximum of 1600.0 ounces used per year. 5-46 ------- Q8: Where did you use spot removers the last time you used it? Table C-15: Location of last use of the product (N=1381 recent users) Basement 9.1% Living room 19.5% Other inside room 57.3% Several inside rooms 3.6% Garage 4.0% Outside 5.4% Garage & outside 1.2% Total 100.0% Most people (57.3%) used the spot remover in an "other inside room" such as the bedroom or den. Of the remainder, 19.5-' said they used it in the living room; 9.1% used it in the basement; 5.4% used it outside; 4.0% used it in the garage; and 1.2% used it both in the garage and outside. 5-47 ------- Table C-16: Protective measures undertaken while using Spot Removers Yes No 1. Door or window open to the Outside 44.5% 55.5% (N=1281 recent inside users) 2. Exhaust fan on during use 9.2% 90.8% (N=1289 recent inside users) 3. Whether inside door to room was open 80.2% 19.8% (N=1277 recent inside users) 4. Whether directions on label were read 77.1% 22.9% (N=1376 all recent users) The majority of the spot remover users (55.5%) did not have a door or window open to the outside; 90.8% did not have an exhaust fan on; 80.2% of indoor users kept the inside door to the room opened; and the majority (77.1%) read the directions on the label. Table C-17 depicts a derived variable ounces per use. Ounces per use is derived by dividing Question 7 (ounces per year) by Question 3 (# of times used during the last twelve months). Table C-17: Ounces per use of Spot Remover (N=1275 recent users) Mean # of ounces per use 3.49 Median # of ounces per use 1.30 Standard deviation 10.18 The mean ounces per use is 3.49 and the median is 1.30. Table C-18 describes the percentile rankings for this variable. 5-48 ------- Table C-18: Percentile rankings of ounces per use of Spot Remover (N=1275 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Ounces/Use 0.01 0.03 0.17 0.25 0.52 1.33 3.00 7.50 11.13 41.92 128.00 Table C-19: Respondent characteristics of Spot Remover users 1. Respondent age (N=1395 recent users) 2. Respondent gender (N=1398 recent users) 3. Number of household members (N=1392 recent users) 4. Number of bedrooms (N=1397 recent users) Mean = 43.02 years Male = 32.0% Female = 68.0% Mean =3.10 Mean = 3.00 bedrooms Table C-19 presents the respondent characteristics of users of spot removers. The characteristics of the spot removers are almost identical to that of the sample as a whole with the exception of the sex of the user. Sixty-eight percent of the users of spot removers were female compared to 53.0% who were female in the sample as a whole. 5-49 ------- NT EAN UI ECr EASE 5-51 ------- D. Product Fluid Cle Solvent reasers Ql: Have you ever used solvent-type cleaning fluids? Table D-l: Numbers and % of respondents ever using Solvent-type Cleaning Fluids Numbers Percent Yes No Total 1382 3535 4917* 28.1 71.9 100.0 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ *3 cases where information was not ascertained d Tabl solv D-l h typ c d t th s that 28.1. leaning fluid idence for f th pondents h th This prod is ct bout g ever whe 02: When was the last time you used solvent-type cleaning fluids? Table D-2: Last time Solvent-type Cleaning Fluids were used in months (N=1378 users) Mean # of months Median # of months Standard deviation 10.00 2.00 26.26 The mean number of months since last use of a solvent-type cleaning fluid is 10.0 months. The median number of months is 2.0. 5-53 ------- The percentile rankings for time since last use are shown below: Table D-3: Percentile rankings for Solvent-type Cleaning Fluids months since last use (N=1378 users) Months Minimum 0.03 1% 0.03 5% 0.03 10% 0.07 25% 0.23 Median 2.00 75% 7.00 90% 24.00 95% 48.00 99% 144.00 Maximum 300.00 Table D-3 shows that 25th percentile users and below last used the product less than a month ago. The range in percentile rankings goes from a minimum of .03 months to a maximum of 300. 5-54 ------- Q3: How many times have you used solvent-type cleaning fluids in the last 12 months? Table D-4: Number of uses of a Solvent-type Cleaning Fluid within the last 12 months (N=1104 recent users) Mean # of uses 16.46 Median # of uses 4.00 Standard deviation 44.12 The mean number of uses of solvent-type cleaning fluids in the last twelve months is 16.46. This is one of the highest mean times used being second only to typewriter correction fluid which is the highest. The median number of times used in the last 12 months is 4.0 times. Table D-5: Percentile rankings of number of uses of Solvent-type Cleaning Fluids within the last 12 months (N-1104 recent users) Uses Minimum 1.0 1% 1.0 5% 1.0 10% 1.0 25% 2.0 Median 4.0 75% 12.0 90% 46.0 95% 52.0 99% 300.0 Maximum 365.0 Fifty percent of the users of solvent-type cleaning fluids used it four times or less. Twenty percent used it once; 18.7% used it twice; 9.3% used it 3 times; and 2.% used it four times during the previous twelve months. 5-55 ------- Q4: How much time did you spend using a solvent-type cleaning fluid the last time you used it? Table D-6: Time spent using the Solvent-type Cleaning Fluid last time used (N=1093 recent users) Mean # of minutes 29.48 Median # of minutes 15.00 Standard deviation 97.49 The mean number of minutes using a solvent-type cleaning fluid the last time used is 29.48 minutes and the median is 15.0 minutes. This is about an average amount of time when compared to other products. Table D-7: Percentile rankings for time spent using the Solvent-type Cleaning Fluid last time used (N-1093 recent users) Minutes Minimum 0.02 1% 0.03 5% 1.00 10% 2.00 25% 5.00 Median 15.00 75% 30.00 90% 60.00 95% 120.00 99% 300.00 Maximum 1800.00 The percentile rankings for time spent using solvent-type cleaning fluids the last time used ranges from a minimum of .02 minutes to a maximum of 1800 minutes (30 hours). 5-56 ------- Q5: How much time did you spend in the room immediately after use the last time you used solvent-type cleaning fluids? Table D-8: Time spent in the room after last use of Solvent-type Cleaning Fluids (N-1084 recent users) Mean # minutes in room 33.29 Median # minutes in room 3.00 Standard deviation 90.39 The mean number of minutes spent in the room after last use of a solvent-type cleaning fluid is 33.29 minutes and the median is 3.0 minutes. Table D-9: Percentile rankings for time spent in the room after last use including those who did not spend any time in room but used Solvent-type Cleaning Fluids (N=1084 recent users) Minimum 1% 5% 10 25 Median 75% 90% 95% 99% Maximum Minutes 0.00 0.0 0.00 0.00 0.00 3.00 28.75 60.00 180.00 480.00 1440.00 Respondents at the 25th percentile and less did not spend any time in the room after using solvent-type cleaning fluids. 75th to 100th percentile users ranged from 28.75 minutes spent in the room to 1440 minutes (24 hours). 5-57 ------- Table D-10: Percentile rankings for Solvent-type cleaning fluids for time spent in the room after last use including only those who spent time in the room (N=649 recent users who stayed in room) Minutes Minimum 1.00 1% 1.00 5% 1.00 10% 2.00 25% 5.00 Median 15.00 75% 60.00 90% 150.00 95% 240.00 99% 480.00 Max imum 1440.00 Table D-10 is similar to Table D-9 except it includes only users who did in fact stay in the room after use, therefore, all percentiles have values greater than zero. ------- Q6A: Which brand of solvent-type cleaning fluid did you use the last time you used it? Table D-ll: Brand distribution for Solvent-type Cleaning Fluids Brand category Frequency Percent Top brand Second highest brand Third highest brand Don't Knows and Not Ascertained All other named brands Total 91 87 57 412 470 1117 8.1 7.8 5.1 36.9 42.1 100.0 Sixty-three percent of the users of solvent-type cleaning fluids specified a brand. The top three brands were used by 8.1%, 7.8% and 5.1% of the users, respectively. These top three brands represent 21.0% of the use. Q6B: Was the product in aerosol form? Table D-12: Percent of respondents saying the Solvent-type Cleaning Fluid is aerosol (N-1096 recent users) Yes, product is aerosol 25.6% No, product is nonaerosol 74.4% Almost twenty six percent of the solvent-type cleaning fluids used were aerosol. 5-59 ------- Q7: What size of solvent-type cleaning fluids did you use the last time you used it? How much of a can or how many cans did you use during the past year? The two questions above were used to derive the variable called ounces per year. Table D-13: Amount of Solvent-type Cleaning Fluids used per year in ounces (N=1028 recent users) Mean ounces per year 58.30 Median ounces per year 16.00 Standard deviation 226.97 The mean number of ounces used of solvent-type cleaning fluids is 58.30 and the median is 16.0. Table D-14: Percentile rankings for amount of Solvent-type Cleaning Fluids used in ounces (N-1028 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95 99% Maximum Ounces 0.04 0.50 2.00 3.00 6.50 16.00 32.00 96-00 192.00 845.00 5120.00 The range between the minimum and maximum values in Table D-14 is quite substantial with a minimum of .04 ounces and a maximum of 5120.0 ounces. 5-60 ------- Q8: Where did you use solvent-type cleaning fluids the last time you used it? Table D-15: Location of last use of the product (N=1095 recent users) Basement 5.4% Living room 2.6% Other inside room 49.1% Several inside rooms 1.5% Garage Outside 12.2% 28.0% Garage & outside 1.2% Total 100.0% ^^^^^r Most respondents used the solvent-type cleaning fluid in an other inside room such as the kitchen, bedroom, or den. Twenty- eight percent used it outside; 12.2% used it in the garage; and 5.4% used it in the basement; 2.6% used it in a living room; and 1.2% used it both in the garage and outside. 5-61 ------- Table D-16: Protective measures undertaken while using Solvent-type Cleaning Fluids Yes No 1. Door or window open to the outside 57.0% 43-0% (N=772 recent inside users) 2. Exhaust fan on during use (N=772 recent inside users) 14.8% 85.2% 3. Whether inside door to room was open (N=767 recent inside users) 74.4% 25.6% 4. Whether directions on label were read 67.5% 32.5% (N=1087 all recent users) The majority (57.0%) of users of solvent-type cleaning fluids did have a door or window open to the outside when using it; 85.2% did not have an exhaust fan on during use; 74.4% did have the inside door to the room opened during use; and 67.5 said they did read the label before using the product. Table D-17 is a derived variable ounces per use and it is derived by dividing Question 7 (ounces per year) by Question 3 (# of times used in the last year). Table D-17: Ounces per use of Solvent-type Cleaning Fluids Mean # of ounces per use 9.45 Median # of ounces per use 3.30 Standard deviation 33.19 The mean number of ounces per use is 9.45 and the median is 3.30. The mean ounces per use is about average when compared t other products. 5-62 ------- Table D-18: Percentile rankings of ounces per use of Solvent-type Cleaning Fluids Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Ounces/Use 0.01 0.05 0.28 0.56 1.33 3.25 8.00 16.00 32.00 80.42 640.00 The percentile rankings for ounces per use range from a minimum of .01 to a maximum of 640.0 ounces. Table D-19: Respondent characteristics of Solvent-type Cleaning Fluid users 1. Respondent age (N-1113 recent users) Mean 41.50 years 2. Respondent gender (N=:1115 recent users) Male Female 52.6 47.4% 3. Number of household members (N=1113 recent users) Mean 3.20 members 4. Number of bedrooms (N=1114 recent users) Mean 3.00 bedrooms Respondents using solvent-type cleaning fluids are slightly younger than the sample as a whole. Respondent ages range from 18 years old to 86 years old. Slightly more males (52.6%) used solvent-type cleaning fluids than the percentage of males in the sample as a whole (47.0%). Other characteristics of these users are identical to the respondent characteristics in the sample as a whole. 5-63 ------- AN ANE EAN 5-65 ------- E. Product 5: Wood Floor Panel Cleaners Ql: Have you ever used a wood floor panel cleaner? Table E-l: Numbers and % of respondents ever using Wood Floor Panel Cleaner Numbers Percent Yes No 1721 35.0 3196 65.0 Total 4917* 100.0 *3 cases where information was not ascertained Table E-l shows that 35.0% of the total respondents have "ever" used a wood floor panel cleaner. Q2: When was the last time you used a wood floor panel cleaner? Table E-2: Last time Wood Floor Panel Cleaner was used in months (N=1715 users) Mean # of months 12.60 Median # of months 3.00 Standard Deviation 26.50 Table E-2 shows that the mean number of months since the last use of wood floor panel cleaners is 12.60 months and the median is 3.0 months. There is a difference of approximately 9 months between the mean and median and this is because of a few extreme responses to the question. 5-67 ------- The percentile rankings for time since last use are shown below: Table E-3: Percentile rankings for Wood Floor Panel Cleaners months since last use (N=1715 users) Months Minimum 0.03 1% 0.03 5% 0.10 10% 0.20 25% 0.69 Median 3.00 75% 12.00 90% 36.00 95% 60.00 99% 144.00 Maximum 252.00 Table E-3 shows that 50% of the product users last used wood floor panel cleaners 3 months ago or less. The minimum amount of time since the last use of the product is 0.03 months and the 100th percentile is 252 months. The 75th percentile through the 100th percentile respondents reported last using the product 12 months ago through 252 months (21 years) ago. The data appear to be subject to rounding which was discussed earlier under aspects of the data. The data is still usable for indicating the approximate last use. 5-68 ------- Q3: How many times have you used wood floor panel cleaners in the last 12 months? Table E-4: Number of uses of Wood Floor Panel Cleaner within the last 12 months (N=1312 recent users) Mean # of uses 8.48 Median # of uses 2.00 Standard deviation 20.89 The average number of uses of the wood floor panel cleaner in the last 12 months was 8.48 and the median 2.0. Of the 1312 users who answered this question, 29.1% used it once, 25.1% used it twice and 8.5% used it three times in the last year. Table E 5 which follows presents the percentile rankings for this variable. Ninety-nine percent of the respondents used the product 56 times or less in the last year. At the 100th percentile the times the product was used in the last year increased sharply to 350 times. Table E-5: Percentile rankings of number of uses of Wood Floor Panel Cleaner within the last 12 months (N=1312 recent users) Uses Minimum 1.00 1% 1.00 5% 1.00 10% 1.00 Median 2.00 75% 6.00 90% 24.00 95% 50.00 99% 56.00 Maximum 350.00 5-69 ------- Q4: How much time did you spend using wood floor panel leaner the last time you used it Table E-6: Time spent using Wood Floor Panel Cleaner last time used (N=1301 recent users) Mean # of minutes 74.04 Median # of minutes 30.00 Standard deviation 128.43 The average time spent using the product is 74.04 minutes and the median is 30 minutes. There is a difference of approximately 44 minutes between the mean and median. Table E-7 which follows shows that the responses range from a minimum of .02 minutes to a maximum of 45 hours. There is a sharp increase in the amount of time spent using the product at the 100th percentile which is 45 hours compared to the 99th percentile which is just 8 hours. This is because of a few extreme responses. Table E-7: Percentile rankings for time spent using Wood Floor Panel Cleaner last time used (N=1301 recent users) Minutes Minimum 0.02 1% 1.00 5% 5.00 10% 10.00 25% 20.00 Median 30.00 75% 90.00 90% 147.00 95% 240.00 99% 480.00 Maximum 2700.00 5-70 ------- Q5: How much time did you spend in the room immediately after use the last time you used the wood floor panel cleaner? Table E-8 Time spent in the room after last use of Wood Floor Panel Cleaner (N=1269 recent users) Mean # minutes in room Median minutes in room Standard deviation 96.75 30.00 192.88 The mean number of minutes spent in the room after last use is 96.75 minutes as opposed to the median of 30 minutes. Table E-9: Percentile rankings for time spent in the room after last use of Wood Floor Panel Cleaners including those who did not spend any time in room (N=1269 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Minutes 0.00 0.00 0.00 0.00 5.00 30.00 120.00 240.00 480.00 1062.00 1440.00 Fifty percent of the respondents spent 30 minutes or less in the room after using the product. From the 75th percentile through the 95th percentile the time spent in the room increased from 2 hours to 8 hours. A few respondents spent a much greater time in the room after using the product. Their responses are reflected in the 99th percentile and 100th percentile where time spent in the room is 1062 minutes (17.7 hours) and 1440 minutes (2 4 hours) respectively. 5-71 ------- Table E-10: Percentile rankings for Wood Floor Panel Cleaners for time spent in the room after last use including only those who spent time in the room (N=1071 recent users) Minutes Minimum 1.00 1% 1.00 5% 1.00 10% 3.00 25% 10.00 Median 30.00 75% 120.00 90% 300.00 95% 480.00 99% 1440.00 Maximum 1440.00 Table E-10 is similar to Table E-9 except it includes only users who did spend some time in the room after using the product. Of the 1071 respondents who spent time in the room, 50% spent 30 minutes or less in the room after using the product. As seen in Table E-7, this is also the median time spent using the product. 5-72 ------- Q6A: Which brand of wood floor panel cleaner did you use the last time you used it? Table E-ll: Brand distribution for Wood Floor Panel Cleaners Brand category Frequency Percent Top brand Second highest brand Third highest brand 575 43.7 89 6.8 59 4.5 Don't knows and not ascertained 185 14.1 All other named brands Total 407 30.9 1315 100.0 Eighty-six percent (85.9%) of the users of the product specified a brand. The top three brands of wood floor panel cleaners named were used by 43.7%, 6.8% and 4.5% of users, respectively. Q6B: Was the product in aerosol form? Table E-12: Percent of respondents saying the Wood Floor Panel Cleaner used is in aerosol or non-aerosol form (N=1306 recent users) Yes, product is aerosol 48.9 No, product is nonaerosol 51.1 Forty-nine percent (48.9%) of the respondents said the brand of wood floor panel cleaner that they used was in aerosol form. Approximately the same number, 51.1%, said the brand they used was in nonaerosol form. 5-73 ------- Q7: What size of wood floor panel cleaner did you use the last time you used it? How much of a can or how many cans did you use during the past year? The two questions above were used to derive the variable called ounces per year. Table E-13: Amount of Wood Floor Panel Cleaner used in ounces (N=1229 recent users) Mean ounces per year 28.41 Median ounces per year 14.00 Standard deviation 57.23 The mean amount of wood floor panel cleaner used per year is 28.41 ounces and the median is 14.0 ounces. Table E-14: Percentile rankings for amount of Wood Floor Panel Cleaners used in ounces per year (N=1229 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Ounces 0.03 0.80 2.45 3.50 7.00 14.00 30.00 64.00 96.00 204.40 1144.00 The minimum amount of product used is 0.03 ounces and the maximum 1144.0 ounces. Ninety-five percent of the respondents used 96.0 ounces or less in the last year. This amount increased sharply at the 99th (204.4 ounces) and the 100th (1144.0 ounces) percentile. 5-74 ------- Q8: Where did you use wood floor panel cleaner the last time you used it? Table E-15: Location of last use of the product (N=1295 recent users) Basement 3.1% Living room 26.8% Other inside room 49.3% Several inside rooms 18.7% Garage Outside 0.6% 1.2% Garage & outside 0.3 Total 100.0% Most people (49.3%) used wood floor panel cleaners in an "other inside room11 such as a bedroom, kitchen or den. The next two locations used most often were "living room" by 26.8% of the users and "several inside rooms" used by 18.7%. Only 1.2% of the users used the product outside. Of the 32 products surveyed, the only other product used less outside is typewriter correction fluid which is used by only 0.5% of the users. 5-75 ------- Table E-16: Protective measures undertaken while using Wood Floor Panel Cleaner Yes No 1. Door or window open to the outside 58.9% 41.1% (N=1269 recent inside users) 2. Exhaust fan on during use (N=1272 recent inside users) 11.3% 88.7 3. Whether inside door to room was open (N=1268 recent inside users) 82.5% 17.5% 4. Whether directions on label were read (N-1294 recent users) 72.2% 27.8% The majority of wood floor panel cleaner users (72.2%) had d the directions on the label. Also, more than half the users had a door or window open to the outside (58.9%) and an insid door to the room open (82.5%). An additional variable ounces used per use of the product was created by dividing Question 7 by Question 3 and is presented in Table E-17 which follows. Table E-17: Ounces per use of Wood Floor Panel Cleaner (N=1228 recent users) Mean # of ounces per use 9.50 Median # of ounces per use 4.33 Standard deviation 18.62 The mean ounces used per use of wood floor panel cleaner is 9.50 ounces and the median is 4.33 ounces. Table E-18 which follows presents the percentile rankings for this variable. Of the 1228 respondents who answered this question, 95.0% used 32.0 ounces or less of the product per use. The 100th percentile is 256.0 ounces. 5-76 ------- Table E-18: Percentile rankings of ounces per use of Wood Floor Panel Cleaner (N=1228 recent users) Minimum 5 10% 25 Median 75 90% 95% 99% Maximum Ounces/Use 0.02 0.11 0.48 0.88 2.00 4.33 10.50 16.85 32.00 82.84 256.00 Table E-19: Respondent characteristics of Wood Floor Panel Cleaner users 1. Respondent age Mean = 41.97 years (N=1308 recent users) 2. Respondent gender Male = 29.9 (N=1313 recent users) Female =70.1 s- 3. Number of household members (N=1311 recent users) Mean = 3.09 members 4. Number of bedrooms Mean = 2.97 bedrooms (N=1312 recent users) Table E-19 presents the respondent characteristics of wood floor panel cleaner users. The average age of these respondents is 41.97 years. There are a greater number of female respondents (70.1%) compared to the number of male respondents (29.9%). The respondent gender characteristics for this product differed from the characteristics for the total sample of respondents which had nearly an equal number of male (47.0%) and female (53.0%) respondents. The other respondent characteristics are almost identical to the characteristics for the total sample of respondents. 5-77 ------- F. Product iter Correction Fluid ewr Ql: Have you ever used typewriter correction fluid? Table F-l: Numbers and % of respondents ever using Typewriter Correction Fluid Numbe Percent Yes No Total 1278 3639 4917* 26.0 74.0 100.0 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^l^^^A^M'HM^^^H^^H^^^^^^'^^B^^^M^^H^H^^^^^B^fclA'^^^^^H^^^H^^^^^^H^I^H^H^VH^H^HH^^^^^^^^fll^ * 3 cases where information was not ascertained Table F-l shows that 26^5 of the total respondents have "ever" used typewriter correction fluid. Q2: When was the last time you used typewriter correction fluid? Table F-2: Last time Typewriter Correction Fluid was used in months (N=1273 users) Mean # of months Median # of months Standard deviation 7.00 0.99 26.93 As Table F-2 shows, the mean number of months since last use of typewriter correction fluid is 7.0 months. The median number of months is 0.99 and this adjusts for any extreme values given as answers to this question. 5-81 ------- The percentile rankings for this question will now be presented. Table F-3: Percentile rankings for Typewriter Correction Fluid months since last use (N=1273 users) Months Minimum 0.03 1% 0.03 5% 0.03 10% 0.03 25% 0.10 Median 0.99 75% 3.00 90% 12.00 95% 24.00 99% 120.00 Maximum 480.00 Table F-3 shows that 25% of the users used the product less than a month ago. The 90th percentile through the 100th percentile have last used the product 12 months through 480 months ago. The data appear to be subject to rounding, discussed earlier under aspects of the data. The data are useful in indicating the approximate last use. S-82 ------- Q3: How many times have you used typewriter correction fluid in the last 12 months? Table F-4: Number of uses of Typewriter Correction Fluid in the last 12 months (N=1137 recent users) Mean # of uses 40.00 Median # of uses 12.00 Standard deviation 74.78 Users of the product used it on the average of 40.0 times in the last 12 months. The median was 12.0 uses. Table F-5: Percentile rankings of number of uses of Typewriter Correction Fluid within the last 12 months (N-1137 recent users) Uses Minimum 1.00 1% 1.00 5% 1.00 10% 2.00 25% 4.00 Median 12.00 75% 40.00 90% 100.00 95% 200.00 99% 365.00 Maximum 520.00 5-83 ------- Q4: How much time did you spend using typewriter correction fluid the last time you used it? Table F-6: Time spent using Typewriter Correction Fluid last time used (N=1131 recent users) Mean # of minutes 7.62 Median # of minutes 1.00 Standard deviation 29.66 The median is 1 minute. The mean of approximately 8 minutes is higher and could be explained by the highly skewed distribution. Table F-7: Percentile rankings for time spent using Typewriter Correction Fluid last time used (N=1131 recent users) Minutes Minimum 0.02 1% 0.02 5% 0.03 10% 0.03 25% 0.17 Median 1.00 75% 2.00 90% 10.00 95% 32.00 99% 120.00 Maximum 480.00 Users at the 25th percentile and below used the product for 15 seconds or less. The 99th percentile on the other hand is 120 minutes and the 100th percentile is 480 minutes. 5-84 ------- Q5: How much time did you spend in the room immediately after use the last time you used Typewriter Correction Fluid? Table F-8. Time spent in the room after last use of Typewriter Correction Fluid (N=1114 recent users) Mean # of minutes 124.70 Median # of minutes 60.00 Standard deviation 153.46 The mean number of minutes spent in the room after last use is 124.70 minutes and the median is 60 minutes. Here again th difference could be explained on account of the skewed distribution. Table F-9: Percentile rankings for time spent in the room after last use of Typewriter Correction Fluid including those who did not spend any time in the room (N=1114 recent users i Minutes Minimum 0.00 Q 1% 0.00 5% 1.00 10% 5.00 25% 30.00 Median 60.00 75% 180.00 90% 360.00 95% 480.00 99% 600.00 Maximum 1800.00 Above the 5th percentile all respondents spent time in the room after using the product. Except for the 75th percentile through the 100th percentile, all other respondents spent 3 hours or less in the room. 5-85 ------- Table F-10. Percentile rankings for Typewriter Correction Fluid for time spent in the room after last use including only those who spent time in the room (N=1082 recent users who stayed in room) Minutes Minimum 1.00 1% 1.00 5% 3.00 10% 10.00 25% 30.00 Median 60.00 75% 180.00 90% 360.00 95% 480.00 99% 600.00 Maximum 1800.00 Table F-10 is similar to Table F-9 except it includes only users who did stay in the room after use, therefore, all percentiles have values greater than zero. 5-86 ------- Q6A: Which brand of typewriter correction fluid did you use the last time you used it? Table F-ll: Brand distribution for Typewriter Correction Fluid Brand category Frequency Percent 477 41.6 374 32,6 29 2.5 Top brand Second highest brand Third highest brand Don't Knows and Not Ascertained 185 16.1 All other named brands Total 82 7.2 1147 100.0 Of those who used the product in the last 12 months, 962 respondents (83.9%) specified a brand. The two major brands were used by 41.6% and 32.6% of the users, respectively. These two together account for 74.2% of users of the named brands. Q6B: Was the product in aerosol form? Table F-12: Percent of respondents saying Typewriter Correction Fluid is in aerosol or non- aerosol form (N=1131 recent users) Yes, product is aerosol 0.1% No, product is nonaerosol 99.9% Nearly a hundred percent of the respondents said the typewriter correction fluid they used was in nonaerosol form 5-87 ------- Q7: What size of typewriter correction fluid did you use the last time you used it? How much of a can or how many cans did you use during the past year? The two questions above were used to derive the variable called ounces per year. Table F-13: Amount of Typewriter Correction Fluid used in ounces (N=1037 recent users) Mean ounces per year 4.14 Median ounces per year 0.94 Standard deviation 13.72 Of all the products surveyed, typewriter correction fluid has the lowest mean and median for ounces per year used. Table F-14: Percentile rankings for ounces per year used of Typewriter Correction Fluid (N=1037 recent users) Ounces Minimum 0.01 1% 0.02 5% 0.06 10% 0.12 25% 0.30 Median 0.94 75% 2.40 90% 8.00 95% 18.00 99% 67.44 Maximum 181.80 The ounces used increased sharply at the 99th percentile 5-88 ------- Q8: Where did you use typewriter correction fluid the last time you used it? Table F-15: Location of last use of Typewriter Correction Fluid (N=1130 recent users) Basement 2.1% Living room 14.6 Other inside room 79.8% Several inside rooms 2.0 Garage 0.4^ Outside 0.4% Garage & outside 0.5 Most respondents (79.8%) used the product in an "other inside room". If the questionnaire instructions were misunderstood this could be a room at their place of work. Only 0.4% of the respondents used the product outside. 5-89 ------- Table F-16: Protective measures undertaken while using Typewriter Correction Fluid Yes No 1. Door or window open to the outside (N=1113 recent users) 25.8% 74.2 2. Exhaust fan on during use (N=1116 recent inside users 8.2% 91.8 3. Whether inside door to room was open (N=1107 recent inside users 74% 26 O o 4. Whether directions on label were read (N=1129 all recent users) 39.3% 60.7% The majority of the respondents did not open a door or window (74.2%), did not have an exhaust on (91.8%), had the inside door to the room closed (74%) and had not read the label (60.7%). Table F-17 is a derived variable ounces per use and it is derived by dividing Question 7 (ounces per year) by Question 3 of times used in the last year). Table F-17: Ounces per use of Typewriter Correction Fluid (N-971 recent users) Mean # of ounces per use 0.43 Median # of ounces per use 0.08 Standard deviation 2.28 The median ounces per use is 0.08 minutes. The mean is higher on account of some extreme values. 5-90 ------- Table F-18: Percentile rankings of ounces per use of Typewriter Correction Fluid (N=97l recent U Minimum 1% 5 10 25% Median 75% 90 95 99 Maximum Ounces/Use 0.01 0.01 0.01 0.01 0.03 0.08 0.20 0.75 1.50 6.42 60.00 The ounces per use range from a minimum of 0.01 ounces to a maximum of 60.0 ounces at the 100th percentile. Ninty-nine percent of the respondents used 6.42 ounces or less of the product per use. The amount increased sharply at the 100th percentile to 60.0 ounces per use. Table F-19: Respondent characteristics of Typewriter Correction Fluid users 1. Respondent age (N=1145 recent users) Mean 37.80 years 2. Respondent gender (N=1146 recent users) Male Female 38.1% 61.9 3. Number of household members (N=1143 recent users) Mean 3.14 members 4. Number of bedrooms (N=1142 recent users) Mean 2.96 bedrooms 5-91 ------- The average age of the respondents is 37.80 years. The majority of the respondents, 61.9% are female. Respondent characteristics for typewriter correction fluid users differ from the characteristics of the total sample of respondents in respondent age and gender. The average age for the total sample of respondents is 44.2 years and the percent of male and female respondents is 47% and 53% respectively. 5-92 ------- NTACT CEMEN SU UES AN ESIVES 5-93 ------- G. Product 7: Contact Cements Adhesives Three types of adhesives thought to contain methylene chloride or its substitutes are included here, and they are contact cements, super glues, and spray adhesives. Ql: H Y ever d tact t s r gl or dh Table G-l: Numbers and % of respondents ever using Contact Cements, Super Glues, or Spray Adhesives Numb e r s Percent Yes No Total 2982 1935 4917* 60.6 39.4 100.0 m^^^^^^^^^^^^^m^^^^^^^^^^^^^^^^^^^^^^.__^^^^^^^^^^^^^^^-^^^^^^^^^^^^m^^^^^^^^^^-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^u.^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^.^^^^^^^^^^^^i^^^^^^^^^^^^m^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-^^^^^^^^^^-^^^^^^^^^^^^^^^^ ^ ^ ^^ *3 cases where information was not ascertained Tabl G-l d show tact that 60.6% t s h th highest incid f the total r glues, an pondents h d pray dh f use f a f th t 02: When was the last time you used contact cements, super glues, or spray adhesives? Table G-2: Last time Contact Cements, Super Glues, or Spray Adhesives were used in months (N=2973 users) Mean # of months Median # of months Standard deviation 5.20 1.00 13.30 As ts month use f month abl sup Thi ny G-2 i h th mean b f th or pray dh was last ntact d is 5.20 is almost the f the thirty-t hortest period of time since last product Th d b f is 1 5-95 ------- The percentile rankings for time since last use are shown below: Table G-3: Percentile rankings for Contact Cements, Super Glues and Spray Adhesives months since last use (N=2973 users) Months Minimum 0.03 1% 0.03 5% 0.03 10% 0.10 25% 0.33 Median 1.00 75% 5.00 90% 12.00 95% 24.00 99% 60.00 Maximum 180.00 Table G-3 shows that 25th percentile users and below used the product last less than a month ago. The 75th percentile through the 100th percentile respondents report that they last used the product 5 months ago through 180 months ago. The data appear to be subject to rounding which was discussed earlier under aspects of the data. The data is still usable for indicating the approximate last use. 5-96 ------- Q3: How many times have your used contact cements, super glues, and spray adhesives within the last 12 months? Table G-4: Number of uses of the Contact Cements, Super Glues, and Spray Adhesives within the last 12 months (N=2681 recent users) Mean # of uses 8.89 Median # of uses 3.00 Standard deviation 26.20 The mean number of uses of the product in the last twelve months among users of the product in the last twelve months, was 8.89 and the median 3.0. Fifty-one percent of these users used these adhesives three times or less in the last twelve months with 19.1% using it once; 18.1% using it twice; and 14.3% using it three times. Table G-5: Percentile rankings of number of uses of Contact Cements, Super Glues, and Spray Adhesives within the last 12 months (N=2681 recent users) Uses Minimum 1.00 1% 1.00 5% 1.00 10% 1.00 25% 2.00 Median 3.00 75% 6.00 90% 15.00 95% 28.00 99% 100.00 Maximum 500.00 The percentile rankings for the number of times used in the last twelve months range from a minimum of one time to a maximum of 500 times. 5-97 ------- Q4: How much time did you spend using contact cements, super glues, and spray adhesives the last time you used it? Table G-6: Time spent using Contact Cements, Super Glues, and Spray Adhesives last time used (N=2676 recent users) Mean # of minutes Median # of minutes Standard deviation 15.58 4.30 81.80 The mean number of minutes for using these adhesives is 15.58 and the median is 4.3. Table G-7: Percentile rankings for time spent using the Contact Cements, Super Glues, and Spray Adhesives last time used (N=2676 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Minutes 0.02 0.03 0.08 0.33 1.00 4.25 10.00 30.00 60.00 180.00 2880.00 The minimum percentile is .02 and the maximum percentile 2880 minutes (48 hours). 5-98 ------- Q5: How much time did you spend in the room immediately after use the last time you used contact cements, super glues, and spray adhesives? Table G-8: Time spent in the room after last use of Contact Cements, Super Glues, and Spray Adhesives (N=2599 recent users) Mean # minutes in room 68.88 Median # minutes in room 10.00 Standard deviation 163.72 The mean number of minutes spent in the room after use is 68.88 minutes as opposed to the median of ten minutes. Table G-9: Percentile rankings for time spent in the room after last use including those who did not spend any time in room but used Contact Cement, Super Glues, and Spray Adhesives (N=2599 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Minutes 0.00 0.00 0.00 0.00 1.00 10.00 60.00 180.00 360.00 720.00 2100.00 Respondents at the 10th percentile or less did not spend any time in the room after using contact cement, super glues, or spray adhesives. 5-99 ------- Table G-10: Percentile rankings for Contact Cement, Super Glues, and Spray Adhesives for time spent in the room after last use including only those who spent time in the room (N=2013 recent users who stayed in room) Minutes Minimum 1.00 1% 1.00 5% 1.00 10% 2.00 25% 5.00 Median 20.00 75% 105.00 90% 240.00 95% 420.00 99% 840.00 Maximum 2100.00 Table G-10 is similar to Table G-9 except it includes only users who did in fact stay in the room, therefore, all percentiles have non-zero values. 5-100 ------- Q6A: Which brand of contact cement, super glues, or spray adhesive did you use the last time you used it? Table G-ll: Brand distribution for Contact Cement, Super Glues, or Spray Adhesive Brand category Frequency Percent Top brand Second highest brand Third highest brand Don't Knows & Not Ascertained All other named brands Total 491 454 305 398 1052 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-~ 2700 18.2 16.8 11.3 14.7 39.0 100.0 Eighty-five percent (85.3%) of the users of the product specified a brand. The top three brands of contact cement, super glues, and spray adhesives were used by 18.2 the users, respectively. ^, 16.8 % and 11.3 of Q6B: Was the product in aerosol form? Table G-12: Percent of respondents saying Contact Cement, Super Glues, and Spray Adhesives were aerosol (N=2686 recent users) Yes, product is aerosol No, product is nonaerosol 2.9% 97.1% Respondents said that the product was aerosol in only 2.9 of the cases. The product was nonaerosol in 97.1% of the cases 5-101 ------- 07: What size of contact cement, super glue, or spray adhesive did you use the last time you used it? How much of a can or how many cans did you use during the past year? The two questions above were used to derive the variable called ounces per year. Table G-13: Amount of Contact Cement, Super Glue, or Spray Adhesive used in ounces per year (N=2275 recent users) Mean ounces per year Median ounces per year Standard deviation 7.49 1.00 55.90 The mean ounces used per year is 7.49 and the median ounces is 1.0. While this product is one of the ones used most often the amount used is one of the smallest amounts. Table G-14: Percentile rankings for amount of Contact Cement, Super Glues, and Spray Adhesives used in ounces per year (N=2275 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Ounces 0.01 0.02 0.05 0.12 0.35 1.00 3.00 8.00 20.00 128.00 1280.00 The range between the minimum and maximum values in Table G-14 is quite substantial with the minimum ounces per year at .01 and the maximum ounces per year at 1280.0. There is quite a jump between the 95th percentile and the 99th and 100th. 5-102 ------- Q8: Where did you use contact cement, super glue, and spray adhesive the last time you used it? Table G-15: Location of last use of the product (N=2657 recent users) Basement 5.6% Living room 11.9% Other inside room 61.1% Several inside rooms 1.9% Garage Outside 6.2% 11.7% Garage & outside 1.6% Total 100.0% ^^^^^ Most people (61.1%) used contact cement, super glue, and spray adhesives in an "other inside room" such as the kitchen, bedroom, or den. Almost equal numbers used it in a living room (11.9%) and in the outside air (11.7%). The remainder used it in the basement (5.6%); in the garage (6.2%); in both the garage and the outside (1.6%) and in several inside rooms (1.9%). 5-103 ------- Table G-16: Protective measures undertaken while using Contact Cement, Super Glues, or Spray Adhesives Yes No 1. Door or window open to the outside 41.0% 59.0 (N=2296 recent inside users) 2. Exhaust fan on during use (N=2304 recent inside users) 8.1% 91.9% 3. Whether inside door to room was open 75.1% 24.9 (N=2286 recent inside users) \ 4. Whether directions on label were read 70.1% 29.9% (N=2664 recent users) The majority (59.0%) of the users did not have a door or window open to the outside; did not have an exhaust fan on (91.9%); did have the inside door to the room opened (75.1%); and did read the directions on the label (70.1%) before using the product. Table G-17 is a derived variable ounces per use and it is derived by dividing Question 7 (ounces per year) by Question 3 (# of times used in the last year). Table G-17: Ounces per use of Contact Cement, Super Glue, and Spray Adhesives (N=2230 recent users) Mean # of ounces per use 2.98 Median # of ounces per use 0.25 Standard deviation 35.50 The mean number of ounces per use is 2.98 and the median ounces per use is .25. 5-104 ------- Table G-18: Percentile rankings of ounces per use of Contact Cement, Super Glues, and Spray Adhesives (N=2230 recent users) Minimum i d. 5% 10% 25% Median 75% 90% 95% 99% Maximum Ounces/Use 0.01 0.01 0.01 0.03 0.09 0.25 0.75 2.00 4.32 42.54 1280.00 The range of percentile rankings is from a minimum of .01 to a maximum of 1280.0 ounces. Table G-19: Respondent characteristics of Contact Cement Super Glue, and Spray Adhesives users 1. Respondent age Mean = 41.10 years (N=2692 recent users) 2. Respondent gender Male = 49.2 (N=2697 recent users) Female =50.8 3. Number of household members (N=2690 recent users) Mean = 3.20 members 4. Number of bedrooms Mean = 2.90 bedrooms (N=2693 recent users) Table G-19 presents the respondent characteristics of contact cement, super glue, and spray adhesive users. These respondents were slightly younger than respondents as a whole 41.10 compared to 44.3 years of age; there were about the same number of males 49.2% to 47.0%; the number of household members was the same 3.20; and the number of bedrooms was the same 2.9 compared to mean age of these respondents is 44.4 years; 53.0% of the respondents are female and 47.0% are male; the mean number of household members is 3.10; and the mean number of bedrooms is 2.90. 5-105 ------- EM EN AN W A 5-107 ------- H. Product 8: Adhesive Removers Ql: Have you ever used adhesive removers? Table H-l: Numbers and % of respondents ever using Adhesive Removers Numbers Percent Yes No 286 5.8 4630 94.2 Total 4916* 100.0 *4 cases where information was not ascertained Table H-l shows that only 5.8% of the respondents had "ever" used adhesive removers. This is a relatively low percentage when compared to this incidence for other products. Only four other productstransmission cleaners, brake quieters/cleaners, gasket removers, and ignition & wire dryers have incidences below 5.8 Q2: When was the last time you used adhesive removers? Table H-2: Last time the Adhesive Remover was used in months (N=283 users) Mean # of months 21.70 Median # of months 10.00 Standard deviation 38.01 As Table H-2 shows, the mean number of months adhesive removers were last used is 21.70 months. The median number of months is 10.0. 5-109 ------- The percentile rankings for time since last use are shown below: Table H-3: Percentile rankings for Adhesive Removers months since last use (N=283 users) Months Minimum 0.03 1% 0.03 5% 0.11 10% 0.38 25% 2.00 Median 10.00 75% 24.00 90% 60.00 95% 84.00 99% 240.00 Maximum 360.00 Table H-3 shows that users at the 10th percentile and below used the product last less than a month ago. From the 75th percentile through the 100th percentile respondents report that they last used the product 24 months ago (2 years) through 360 months ago (30 years). The data appear to be subject to rounding which was discussed earlier under aspects of the data (i.e. 2, 57 30 years rather than 2 years & 4 months). The data are usable for indicating the approximate last use. 5-110 ------- Q3: How many times have you used adhesive removers in the last 12 months? Table H-4: Number of uses of Adhesive Removers within the last 12 months (N=167 recent users) Mean # of uses 4.22 Median # of uses 1.00 Standard deviation 12.30 In the last 12 months, the average number of times the product was used was 4.22 and the median was 1 time. Of the 167 respondents who had used the product in the last twelve months, 53.3% used it once, 20.4% used it twice and 10.8% used it three times. Table H-5 which follows shows the percentile rankings for the variable. One finds that at the 99th percentile there is a sharp increase in the number of times the product is used in the last year. Table H-5: Percentile rankings of number of uses of Adhesive Removers within the last 12 months (N=167 recent users) Uses Minimum 1.00 1% 1.00 5% 1.00 10% 1.00 25% 1.00 Median 1.00 75% 3.00 90% 6.00 95% 16.80 99% 100.00 Maximum 100.00 5-111 ------- Q4: How much time did you spend using the adhesive remover the last time you used it? Table H-6: Time spent using Adhesive Remover last time used (N=168 recent users) Mean # of minutes 121.20 Median # of minutes 60.00 Standard deviation 171.63 When last used, the mean and median number of minutes spent using adhesive removers are relatively high at 121.20 and 60 minutes respectively. Only three other products latex paints, oil paints, and paint removers/strippers have higher average times spent when the products were last used. Table H-7: Percentile rankings for time spent using Adhesive Remover last time used (N=168 recent users) Minutes Minimum 0.03 1% 0.03 5% 1.45 10% 3.00 25% 15.00 Median 60.00 75% 120.00 90% 246.00 95% 480.00 99% 960.00 Maximum 960.00 Twenty-five percent of the respondents spent 15 minutes or less using the adhesive remover the last time they used it. Fifty percent of the respondents spent one hour or less, the maximum time spent using the product was 960 minutes (16 hours). 5-112 ------- Q5: How much time did you spend in the room immediately after use the last time you used adhesive removers? Table H-8: Time spent in the room after last use of Adhesive Removers (N=1C recent users) Mean # minutes in room 94.12 Median # minutes in room 20.00 Standard deviation 157.69 The average time spent in the room after use is 94.12 minutes. The median is 20 minutes. The difference between th mean and median can be explained by a few extreme responses t the question. Table H-9: Percentile rankings for time spent in the room after last use of Adhesive Removers including those who did not spend any time in the room (N=166 recent users) Minutes Minimum 0.00 1% 0.00 5% 0.00 10% 0.00 25% 1.75 Median 20.00 75% 120.00 90% 360.00 95% 480.00 99% 720.00 Maximum 720.00 Fifty percent of the respondents spent 20 minutes or less in the room after use. The amount of time spent in the room increases sharply at the 75th percentile where time spent is 120 minutes (2 hours) through the 100th percentile where time spent in the room after use is 720 minutes (12 hours). 5-113 ------- Table H-10: Percentile rankings for Adhesive Removers for time spent in the room after last use including only those who spent time in the room (N=13l recent users who stayed in room) Minutes Minimum 1.00 1% 1.00 5% 1.60 10% 4.00 25% 10.00 Median 60.00 75% 120.00 90% 420.00 95% 504.00 99% 720.00 Maximum 720.00 Table H-10 is similar to Table H-9 except it includes only users who did in fact stay in the room after using the product. The mean now changes to 119.3 minutes and the median is now 60 minutes. The difference between the mean and median has lessened to 59.3 minutes from 74.12 minutes in Table H-8. 5-114 ------- Q6A: Which brand of adhesive remover did you use the last time you used it? Table H-ll: Brand distribution for Adhesive Removers Brand category Frequency Percent 11 6.3 8 4.6 5 2.9 Top brand Second highest brand Third highest brand Don't Knows or Not ascertained 106 60.6 All other named brands Total 45 25.6 175 100.0 Thirty-nine percent (39.4%) of the users specified a brand The top three brands named were used by 6.3%, 4.6% and 2.9%, respectively of the users of the named brands. Q6B: Was the product in aerosol form? Table H-12: Percent of respondents saying the Adhesive Remover used is in aerosol or non-aerosol form (N=167 recent users) Yes, product is aerosol 15.0% No, product is nonaerosol 85.0% Of the 167 recent users who answered this question, 85.0% said the adhesive remover used was nonaerosol whereas 15.0% said it was an aerosol. 5-115 ------- Q7: What size of adhesive remover did you use the last time you used it? How much of a can or how many cans did you use during the past year? The two questions above were used to derive the variable called ounces per year. Table H-13: Amount of Adhesive Remover used in ounces (N=155 recent users) Mean ounces per year 34.46 Median ounces per year 10.88 Standard deviation 96.60 The average amount of adhesive remover used in the last year was 34.46 ounces and the median 10.88 ounces. Table H-14: Percentile rankings for amount of Adhesive Remover used in ounces per year (N=155 recent users) Minimum 1% 5% 10% 25 Ounces 0.25 0.29 1.22 2.80 6.00 Median 10.88 75% 32.00 90% 64.00 95% 138.70 99% 665.60 Maximum 1024.00 As shown in Table H-14 the responses for ounces used in the last year is widely spread out and range from a minimum of 0.25 ounces to 1024.0 ounces at the 100th percentile. Ninety percent of users used 64.0 ounces or less during the year. This amount increased sharply at the 99th percentile to 665.60 ounces. 5-116 ------- Q8: Where did you use the adhesive remover the last time you used it? Table H-15: Location of last use of the product (N=167 recent users) Basement 4.8 Q, "O Living room 5.4 Other inside room 75.4% Several inside rooms 2.4% Garage Outside 4.2^ 6.6% Garage & outside 1.2 Total 100.0 Most of the users (75.4%) used the Adhesive Remover in an "other inside room". It could be either a bedroom, kitchen or den or some other room. A total of 6.6% used the product outside. Only four other products Typewriter Correction Fluid, Wood Floor and Panel Cleaners, Specialised Electronic Cleaners and Spot Removers were used to a lesser degree outdoors. Table H-16: Protective measures undertaken while using Adhesive Removers Yes No 1. Door or window open to the outside 66.9% 33.1 (N=154 recent inside users) 2. Exhaust fan on during use (N=156 recent inside users) o 23.1% 76.9 3. Whether inside door to room was open 78.6% 21.4 (N=154 recent inside users) \ 4. Whether directions on label were read 82.2% 17.8 (N=169 all recent users) The majority of respondents (82.2%) had read the direction on the label. This could account for 66.9% of the respondents having a door or window open to the outside and 78.6% having an inside door to the room open. 5-117 ------- An additional variable ounces used per use of the product was created by dividing Question 7 by Question 3 and is presented in Table H-17 which follows. Table H-17: Ounces per use of Adhesive Removers (N=153 recent users) Mean # of ounces per use Median of ounces per use Standard deviation 22.04 8.00 85.44 The mean ounces used up per use of adhesive remover is 22.04 ounces and the median is 8 ounces. Table H-18 which follows presents the percentile rankings for this variable. The ounces used per use range from a mimimum of .04 ounces to 1024 ounces at the 100th percentile. Ninety-five percent of the respondents used 64 ounces or less of the product for each use. Table H-18: Percentile rankings of ounces per use of Adhesive Remover (N=153 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Ounces/Use 0.04 0.06 0.33 0.67 3.00 8.00 16.00 32.00 64.00 574.72 1024.00 5-118 ------- Table H-19: Respondent characteristics of Adhesive Remover users 1. Respondent age (N=174 recent users) Mean 39.93 years 2. Respondent gender (N=175 recent users) Male Female 52.6% 47.4% 3. Number of household members (N=175 recent users) Mean 3.29 members 4. Number of bedrooms (N=175 recent users) Mean 3.07 bedrooms bl adhesiv 39.93 y numb e r e H-19 present remover users. th Th pondent characterist Th e mean ag t seem to b f th a m pondent f respondent h sex answeri pondent characterist dh 30 th diffe quest pproximately the same as th remover users is haracterist th is in th The s Pi total P t 5-119 ------- CAN AU M VE) 5-121 ------- I. Product 9: Silicons Lubricants Ql: Have you ever used silicone lubricants? Table 1-1: Numbers and % of respondents ever using Silicone Lubricants Numb e r s Percent Yes No Total 870 4047 4917* 17.7 82.3 100.0 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ *3 cases where information was not ascertained Table 1-1 shows that 17.7% of the total respondents have ever" used silicone lubricants. 02: When was the last time you used silicone lubricants? Table 1-2: Last time Silicone Lubricant was used in months (N=863 users) Mean # of months Median # of months Standard Deviation 6.50 2.00 15.43 On the average silicone lubricants were last used 6.50 months ago This is a very short period of time compared to this incidence for most of the other 32 products surveyed. The median number of months is 2.0. 5-123 ------- Th ercenti since last use ar bel Table 1-3: Percentile rankings for Silicone Lubricants months since last use (N=863 users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Months 0.03 0.03 0.03 0.10 0.33 2.00 6.00 18.00 24.00 84.00 180.00 Table 1-3 shows that time since the product was last used ranges from a minimum of 0.03 months to a maximum of 180.0 months. Twenty-five percent of the respondents last used the product less than a month ago whereas 95% of the respondents used the product 24.0 months or less ago. The months since last use may be subject to rounding discussed earlier under aspects of the data (i.e., 2, 7, 15 years rather than 7 years 3 months). The data is usable for indicating the approximate last use. 5-124 ------- 03: How many times have you used silicone lubricants in th last 12 month Table 1-4: Number of uses of Silicone Lubricant within the last 12 months (N=750 recent users) Mean # of uses 10.32 Median # of uses 3.00 Standard deviation 25.44 The mean number of uses of silicone lubricants in the last year is 10.32 times and the median is 3.0 times. Of the 750 respondents who used the product in the last year, 21.1% used it once, 18.3% used it twice and 11.6% used it three times. Table 1-5 which follows presents the percentile rankings for this variable. The times the product was used ranges from 1 time to 300 times at the 100th percentile. Ninety-five percent of the respondents used the product 46.35 times or less in the last year. Table 1-5: Percentile rankings of number of uses of Silicone Lubricants within the last 12 months (N=750 recent users) Uses Minimum 1.00 1% 5% 1.00 1.00 10% 1.00 25% 2.00 Median 3.00 75% 10.00 90% 20.00 95% 46.35 99% 150.00 Maximum 300.00 5-125 ------- Q4: How much time did you spend using the silicone lubricant the last time you used it? Table 1-6: Time spent using the Silicone Lubricant last time used (N=747 recent users) Mean # of minutes 10.42 Median # of minutes 2.00 Standard deviation 29.47 The mean and median number of minutes for using silicone lubricants are 10.42 and 2.0 minutes respectively. Table 1-7: Percentile rankings for time spent using the Silicone Lubricant last time used (N=747 recent users) Minutes Minimum 0.02 1% 0.03 5% 0.08 10% 0.17 25% 0.50 Median 2.00 75% 10.00 90% 20.00 95% 45.00 99% 180.00 Maximum 360.00 The time spent using silicone lubricants ranges from 0.02 minutes to 6 hours at the 100th percentile. Twenty-five percent of the respondents used the product for less than a minute, 50% used it for 2 minutes or less, and 95% used it for 45 minutes or less. 5-126 ------- Q5: How much time did you spend in the room immediately after use the last time you used silicone lubricants? Table 1-8: Time spent in the room after last use of Silicone Lubricants (N=734 recent users) Mean # minutes in room 30.77 Median # minutes in room 0.00 Standard deviation 107.39 The mean number of minutes spent in the room after use is 30.77 minutes. The median is 0 as at least 50% of the respondents did not spend any time in the room after using the silicone lubricant. Table 1-9: Percentile rankings for time spent in the room after use of Silicone Lubricants including those who did not spend any time in the room (N=734 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Minutes 0.00 0.00 0.00 0.00 0.00 0.00 10.00 60.00 180.00 480.00 1440.00 Respondents at the 75th percentile through the 100th percentile did spend some time in the room after using the product. 5-127 ------- Table 1-10: Percentile rankings for Silicone Lubricants for time spent in the room after last use including only those who spent time in the room (N=343 recent users who stayed in the room) Minutes Minimum 1.00 1% 1.00 5% 1.00 10% 1.00 25% 5.00 Median 10.00 75% 60.00 90% 216.00 95% 300.00 99% 787.00 Maximum 1440.00 Table 1-10 is similar to Table 1-9 except it includes only users who did in fact stay in the room. The mean time spent in the room after use is 65.9 minutes and the median is 10. The maximum time spent in the room after using the product is 24 hours. 5-128 ------- Q6A: Which brand of silicone lubricant did you use the last time you used it? Table I-ll: Brand distribution for Silicone Lubricant Brand category Frequency Percent Top brand Second highest brand Third highest brand Don't Knows and Not Ascertained 243 31.9 203 26.7 36 4.7 35 7.2 All other named brands Total 224 29.5 741 100.0 Sixty-eight percent (68.1%) of the users of the product specified a brand. The top three brands of silicone lubricants named were used by 26.7%, 4.7% and 7.2% of the respondents, respectively. Q6B: Was the product in aerosol form? Table 1-12: Percent of respondents saying Silicone -wwp- - Lubricant is in aerosol or nonaerosol form (N=751 recent users) Yes, product is aerosol 79.9% No, product is nonaerosol 20.1% The majority of the respondents (79.9%) used a silicone lubricant in aerosol form. 5-129 ------- Q7: What size of silicone lubricant did you use the last time you used it? How much of a can or how many cans did you use during the past year? The two questions above were used to derive the variable called ounces per year. Table 1-13: Amount of Silicone Lubricants used in ounces (N=687 recent users) Mean ounces per year 12.50 Median ounces per year 4.50 Standard deviation 27.85 The average amount of silicone lubricants used per year is 12.50 ounces and the median is 4.50 ounces. Table 1-14: Percentile rankings for amount of Silicone Lubricants used in ounces per year (N=687 recent users) Minimum 1% 5% 10% 25% Median 75% 90 95% 99% Maximum Ounces 0.02 0.20 0.69 1.00 2.25 4.50 12.00 24.00 41.20 192.00 312.00 The minimum amount of product used is 0.02 ounces and the maximum is 312.0 ounces. In the last year, 95% of the respondents used 41.20 ounces or less of the product. The amount used increased sharply at the 99th and 100th percentile to 192.0 and 312.0 ounces respectively. 5-130 ------- Q8: Where did you use silicons lubricants the last time you used it? Table 1-15: Location of last use of the product (N=742 recent users) Basement 4. Living room 4.7% Other inside room 28. Several inside rooms 3.3% arage Outside 14.0% 37.5% Garage & outside 8.1% Total 100.0% The majority of the respondents (37.5%) used the product outside. The room where the product is used most indoors is the "other inside room" by 28.2% of the respondents. 14% of the respondents used the product in the garage. 5-131 ------- Table 1-16: Protective measures undertaken while using Silicone Lubricants Yes No 1. Door or window open to the outside 52.0% 48.0% (N=404 recent inside users) 2. Exhaust fan on during use (N=402 recent inside users) 8.2% 91.8 o o 3. Whether inside door to room was open 70.8% 29.2 (N=394 recent inside users) 4. Whether directions on label were read 60.6% 39.4 (N=741 all recent users) Sixty-one percent (60.6%) of the respondents had read the label. Approximately half the number of respondents (52.0%) had a door or window open to the outside. The majority of the respondents had an exhaust fan off (91.8%) and an inside door t the room open (70.8%). Table 1-17 is a derived variable ounces per use and it is derived by dividing Question 7 (ounces per year) by Question 3 (# of times used in the last year). Table 1-17: Ounces per use of Silicone Lubricants (N-682 recent users) Mean # of ounces per use 3.26 Median # of ounces per use 1.13 Standard deviation 8.23 The average amount of silicone lubricant used per use of th product is 3.26 ounces and the median is 1.13 ounces. Table 1-18 which follows presents the percentile rankings for this variable. The ounces used per use of the product range from a minimum of 0.01 ounces to a maximum of 90.0 ounces. Ninety-five percent of the respondents used 11.21 ounces or less of the product per use. 5-132 ------- Table 1-18: Percentile rankings of ounces per use of Silicone Lubricants (N=682 recent users) Minimum 5% 10% 25 Median 75 90 95 99% Maximum Ounces/Use O.C1 0.05 0.16 0.23 0.50 1.13 2.83 6.62 11.21 62.17 90.00 Table 1-19: Respondent characteristics of Silicone Lubricant users 1. Respondent age (N=756 recent users) Mean 45.10 years 2. Respondent gender (N=759 recent users) Male Female 69.7 30.3 s- 3. Number of household members (N=754 recent users) Mean 3.01 members 4. Number of bedrooms (N=758 recent users) Mean 2.99 bedrooms Table 1-19 presents the respondent characteristics of silicone lubricant users. The mean age of these respondents is 45.10 years. The number of male respondents (69.7%) is more than twice the number of female respondents (30.3%). The statistics for the respondent characteristics of silicone lubricant users is approximately the same as those for the total sample of respondents with the exception of respondent gender where the number of male and female respondents is approximately equal for the total sample of respondents. 5-133 ------- AN (E AUT M VE) 5-135 ------- J. Product 10: Other Lubricants Ql: Have you ever used other lubricants? Table J-l: Numbers and % of respondents ever using Other Lubricants Numbers Percent Yes No Total 1696 3221 4917* 34.5 65.5 100.0 _^,_^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^_^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ *3 cases where information was not ascertained Table J-l shows that 34.5% of the total respondents have "ever" used other lubricants. Q2: When was the last time you used another lubricant? Table J-2: Last time Other Lubricant was used in months (N=1690 users) Mean # of months Median # of months Standard deviation 5.10 1.00 13.37 As Table J-2 shows, the mean number of months since last use of other lubricants is 5*10 months. This is the shortest period of time since last use for any of the 32 products surveyed. The median number of months is 1 month. 5-137 ------- The percentile rankings for time since last use are shown below: Table J-3: Percentile rankings for Other Lubricants months since last use (N=1690 users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Months 0.03 0.03 0.03 0.10 0.33 1.00 5.00 12.00 24.00 60.00 240.00 Table J-3 shows that the time since last use of the product ranges from a minimum of 0.03 months to a maximum of 240 months. Twenty-five percent of the respondents used the product last less than a month ago. Ninety-nine percent used it 60.0 months (5 years) or less ago The time since last use increased sharply at the 100th percentile to 240.0 months (20 years) 5-138 ------- Q3: How many times have you used other lubricants in the last 12 months? Table J-4: Number of uses of Other Lubricant within the last 12 months (N=1531 recent users) Mean # of uses 10.66 Median # of uses 4.00 Standard deviation 25.46 The mean number of uses of other lubricants in the last year is 10.66 times. Of the 1531 respondents who used the product in the last year, 16.3% used it once, 18% used it twice and 13.5 used it thrice. Table J-5 which follows presents the percentile rankings for this variable. Ninety-five percent of the respondents used the product 50 times or less in the last year. The maximum number of times the product is used is 420 times. Table j-5: Percentile rankings of number of uses of Other Lubricants within the last 12 months (N=1531 recent users) Uses Minimum 1.00 1% 1.00 5% 1.00 10% 1.00 25% 2.00 Median 4.00 75% 10.00 90% 20.00 95% 50.00 99% 100.00 Maximum 420.00 5-139 ------- Q4: How much time did you spend using other lubricants the last time you used it? Table J-6: Time spent using the Other Lubricants last time used (N=1518 recent users) Mean # of minutes 8.12 Median # of minutes 2.00 Standard deviation 32.20 The mean and median number of minutes for using other lubricants are relatively low as compared to the time spent using the other products surveyed. Table J-7: Percentile rankings for time spent using the Other Lubricants last time used (N=1518 recent users) Minutes Minimum o. 02 1% 0.03 5% 0.05 10% 0.08 25% 0.50 Median 2.00 75% 5.00 90% 15.00 95% 30.00 99% 90.00 Maximum 900.00 The minimum time spent using other lubricants is 0.02 minutes and the maximum time spent is 15 hours. Twenty-five percent of the respondents spent less than 1 minute using the product and 95% of the respondents spent half an hour or less using the product* 5-140 ------- Q5: How much time did you spend in the room immediately after use the last time you used other lubricants? Table J-8. Time spent in the room after last use of Other Lubricants (N=1490 recent users) Mean # minutes in room 47.45 Median # minutes in room 2.00 Standard deviation 127.11 The mean number of minutes spent in the room after last use is 47.45 minutes and the median is 2 minutes. There is a big difference between the mean and median because of the large proportional of respondents who did not spray in the room after the last use of other lubricants. Table J-9 which follows presents the percentile rankings for this variable. It shows that 25% of the respondents did not spend any time in the room after using the product. Ninety-five percent of the respondents spent 240.0 minutes (4 hours) or less in the room. The time spent in the room after use increased sharply at the 100th percentile to 1440.0 minutes (24 hours). Table J-9: Percentile rankings for time spent in the room after last use including those who did not spend any time in the room but used Other Lubricants (N=1490 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Minutes 0.00 0.00 0.00 0.00 0.00 2.00 30.00 120.00 240.00 485.40 1440.00 5-141 ------- Table J-10: Percentile rankings for Other Lubricants for time spent in the room after last use including only those who spent time in the room (N=841 users who stayed in room) Minutes Minimum 1.00 1% 1.00 5% 1.00 10% 2.00 25% 5.00 Median 30.00 75% 120.00 90% 180.00 95% 360.00 99% 720.00 Maximum 1440.00 Table J-10 is similar to Table J-9 except it includes only users who did in fact stay in the room. The mean time spent in the room has increased to 84.10 minutes compared to 47.45 minutes in Table J-8 as respondents spending no time in room after use have been excluded. Ninety-five percent of the respondents spent 360 minutes (6 hours) or less in the room after using the product. 5-142 ------- Q6A: Which brand of other lubricants did you use the last time you used it? Table J-ll: Brand distribution for Other Lubricants Brand category Frequency Percent Top brand Second highest brand Third highest brand Don't Knows and Not Ascertained All other named brands Total 780 448 34 134 149 1545 50,5 29.0 2.2 8.7 9.6 100.0 The majority of respondents, 91.3%, specified a brand of other lubricants that they used. The top three brands of other lubricants named were used by 50.5%, 29.0% and 2.2% of the respondents, respectively. Q6B: Was the product in aerosol form? Table J-12: Percent of respondents saying Other Lubricants are in aerosol or nonaerosol form (N-1524 recent users Yes, product is aerosol No, product is nonaerosol 32.5% 67.5% Table J-12 shows that number of respondents using a non aerosol form of other lubricant is about twice the number of those using an aerosol form of the product. 5-143 ------- Q7: What size of other lubricants did you use the last time you used it? How much of a can or how many cans did you use during the past year? The two questions above were used to derive the variable called ounces per year. Table J-13: Amount of Other Lubricants used in ounces (N=1407 recent users) Mean ounces per year 9.93 Median ounces per year 2.25 Standard deviation 44.18 The mean ounces used per year of other lubricants is 9.93 ounces. This is comparatively low compared to the ounces used per year for most of the other products surveyed. Table J-14: Percentile rankings for amount of Other Lubricants used in ounces per year (N=1407 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Ounces 0.01 0.18 0.30 0.52 1.00 2.25 8.00 18.00 32.00 128.00 1280.00 The range between the minimum and maximum values in Table J-14 is quite substantial with the minimum ounces per year at 0.01 and the maximum ounces per year at 1280.0. Twenty-five percent of the respondents used 1 ounce or less of the product whereas 95.0% of the respondents used 32 ounces or less of the product per year. The amount used increased sharply at the 100th percentile to 1280.0 ounces. 5-144 ------- Q8: Where did you use other lubricants the last time you used it? Table J-15: Location of last use of the product used last time (N=1514 recent users) Basement 7.5% Living room 5.9% Other inside room 34.9 Several inside rooms 2.6% Garage Outside 13.5 29.6% Garage & outside 6.0% Total 100.0 As Table J-15 shows, most people (29.6%) used other lubricants outside. Approximately the same number (34.9%) used the product in an "other inside room". A total of 13.5% used the product in the garage. 5-145 ------- Table J-16. Protective measures undertaken while using Other Lubricants Yes No 1. Door or window open to the outside 42.6% 57.4 (N=968 recent inside users) 2. Exhaust fan on during use (N=969 recent inside users) 6.4% 93.6 3. Whether inside door to room was open 70.0% 30.0 (N=959 recent inside users) 4. Whether directions on label were read 45.0% 55.0 (N=1508 all recent users) ess than half the number of respondents (45.0%) had read the directions on the label. The majority of the users did not have an exhaust fan on during use (93.6%) but had the inside do to the room opened (70,0%). Only 42.6% of the respondents had a door or window open to the outside. Table J-17 is a derived variable ounces per use and it is derived by dividing Question 7 (ounces per year) by Question 3 (# of times used in the last year). Table J-17: Ounces per use of Other Lubricants (N=1400 recent users) Mean # of ounces per use 1.61 Median # of ounces per use 0.55 Standard deviation 6.38 The mean ounces per use of other lubricant is 1.61 which is one of the lowest amounts used when compared to this incidence for other products. Only the product typewriter correction fluid had a lower amount used per use of the product (0.43 ounces). Table J-18 which follows presents the percentile rankings for ounces used per use. Ninety-five percent of the respondents used 5.0 ounces or less of the product per use. At the 100th percentile the amount used per use increased sharply to 192.0 ounces. 5-146 ------- Table J-18: Percentile rankings of ounces per use of Other Lubricants (N=1400 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Ounces/Use 0.01 0.02 0.05 0.10 0.25 0.55 1.33 3.00 5.00 17.98 192.00 Table J-19: Respondent characteristics of Other Lubricant users 1. Respondent age Mean = 43.98 years (N=1537 recent users) 2. Respondent gender Male = 61.1% (N=1542 recent users) Female = 38.9% 3. Number of household members (N=1534 recent users) Mean =3.07 members 4. Number of bedrooms Mean = 2.97 bedrooms (N=1539 recent users) Table J-19 presents the respondent characteristics of other lubricant users. The mean age of these respondents is 43.98 years; the number of household members is 3.07 and the number of bedrooms 2.97. A greater number of the respondents is male (61.1%) compared to the number of female respondents (38.9%). The statistics for the respondent characteristics of other lubricant users is approximately the same as the characteristics of the total sample of respondents with the exception of respondent gender where in the case of the total sample of respondents the percentage of male and female respondents is 47.0% and 53.0% respectively. 5-147 ------- ANE VC A 5-149 ------- K. Product 11: ecialized Electronic Cleaners This product group consists of electronic cleaners for TV's VCRs, cassette players, razors and other electronic equipment. Ql: Have you ever used specialized electronic cleaners? Table K-l: Numbers and % of respondents ever using Specialized Electronic Cleaners Numbers Percent Yes No Total 645 4272 4917* 13.1 86.9 100.0 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ii^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ *3 cases where information was not ascertained Table K-l shows that 13.1% of the total respondents have "ever" used specialized electronic cleaners. This is a relatively low incidence for a nonautomotive product. Q2: When was the last time you used specialized electronic products? Table K-2: Last time Specialized Electronic Cleaners were used in months (N=642 users) Mean # of months Median of months Standard deviation 7.90 2.00 18.26 As Table K-2 shows, the mean number of months since last use of specialized electronic cleaners is 7.90 months. This is a fairly short period of time suggesting a relatively frequently used product. The median number of months is 2.0. 5-151 ------- The percentile rankings for time since last use are shown below: Table K-3: Percentile rankings for Specialized Electronic Cleaners months since last use (N=642 users) Months Minimum 0.03 1% 0.03 5% 0.03 10% 0.10 25% 0.46 Median 2.00 75% 6.00 90% 24.00 95% 36.00 99% 96.00 Maximum 180.00 Table K-3 shows that 25th percentile users and below used the product less than a month ago. The 75th percentile through the 100th percentile respondents report that they last used the product 6 months ago through 180 months (15 years) ago. The data appears to be subject to rounding which was discussed earlier under aspects of the data (ie. 2, 3, 15 years rather than 2 years 3 months). The data are still usable for indicating the approximate last use. 5-152 ------- 03: How many times have you used specialized elect leaners in the last 12 mont Table K-4: Number of uses of Specialized Electronic Cleaners within the last 12 months (N=550 recent users) Mean # of uses 13.41 Median # of times 3.00 Standard deviation 38.16 The mean number of uses of the product in the last twelve months among users of the product in the last twelve months, was 13.41 and the median 3.0. Fifty-four percent of these users used the specialized electronic cleaners three times or less in the last twelve months with 24.5% using it once; 20.4% using it twice; and 9.3% using it three times. Table K-5: Percentile rankings of number of uses of Specialized Electronic Cleaners within the last 12 months (N=550 recent users) Uses Minimum 1.00 1% 1.00 5% 1.00 10% 1.00 25% 2.00 Median 3.00 75% 10.00 90% 24.00 95% 52.00 99% 224.50 Maximum 400.00 5-153 ------- Q4: How much time did you spend using specialized electronic cleaners the last time you used it? Table K-6: Time spent using the Specialized Electronic Cleaners last time used (N=543 recent users) Mean # of minutes 9*47 Median # of minutes 2.00 Standard deviation 45.35 The mean and median number of minutes spent using specialized electronic cleaners are relatively low as would be expected for the time spent using this product. Table K-7: Percentile rankings for time spent using the Specialized Electronic Cleaners last time used (N=543 recent users) Minutes Minimum 0.02 1% 0.03 5% 0.08 10% 0.17 25% 0.50 Median 2.00 75% 5.00 90% 20.00 95% 30.00 99% 93.60 Maximum 900.00 The range in values for the percentile rankings is substantial with a minimum of .02 and a maximum of 900 minutes (15 hours). 5-154 ------- Q5: How much time did you spend in the room immediately after use the last time you used specialized electronic cleaners? Table K-8: Time spent in the room after last use of Specialized Electronic Cleaners (N=533 recent users) Mean # minutes in room 117.24 Median # minutes in room 60.00 Standard deviation 154.38 The mean number of minutes spent in the room after last use is 117.24 minutes as opposed to the median of sixty minutes. The minutes spent in the room after last use is one of the highest of all the products. Table K-9: Percentile rankings for time spent in the room after last use including those who did not spend any time in room but used Specialized Electronic Cleaners (N=533 recent users) Minimum 1% 5% 10% Median 75% 90% 95% 99% Maximum Minutes 0.00 0.00 0.00 1.00 10.00 60.00 180.00 300.00 480.00 720.00 1440.00 Respondents at the 5th percentile or less did not spend any time in the room after using Specialized Electronic Cleaners. Respondents at the higher percentile rankings spent between two to twenty-four hours. 5-155 ------- Table K-10: Percentile rankings for Specialized Electronic Cleaners for time spent in the room after last use including only those who spent time in the room (N=484 recent users) Minutes Minimum 1.00 1% 1.00 5% 2.00 10% 4.00 25% 20.00 Median 60.00 75% 180.00 90% 300.00 95% 480.00 99% 720.00 Maximum 1440.00 Table K-10 is similar to Table K-9 except it includes only users who did in fact stay in the room, therefore, all percentiles have non-zero values. 5-156 ------- Q6A: Which brand of specialized electronic cleaners did you use the last time you used it? Table K-ll: Brand distribution for Specialized Electronic Cleaners Brand category Frequency Percent Top brand Second highest brand Third highest brand Don't Knows and Not Ascertained All other named brands Total 67 22 13 251 200 553 12.1 4.0 2.4 45.4 36.1 100.0 About fifty-five percent (54.6%) of the users of the product specified a brand. This is a relatively low percentage. The top three brands of specialized electronic cleaners were used by 12.1%, 4.0% and 2.4% of the users, respectively. Q6B: Was the product in aerosol form? Table K-12: Percent of respondents saying Specialized Electronic Cleaners are aerosol (N=541 recent users) Yes, product is aerosol No, product is nonaerosol 34.0% 66.0 Respondents said that the product was aerosol in 34.0 of the cases. Electronic cleaners come in many forms including cassette tapes. 5-157 ------- Q7: What size of specialized electronic cleaners did you use the last time you used it? How much of a can or how many cans did you use during the past year? The two questions above were used to derive the variable called ounces per year. Table K-13: Amount of Specialized Electronic Cleaners used per year in ounces (N=456 recent users) Mean ounces per year Median ounces per year Standard deviation 9.48 2.00 55.26 As might be expected, the mean ounces used per year for specialized electronic cleaners is one of lowest amounts compared to the amount used of other products. Only the categories of typewriter correction fluid, adhesives, and ignition and wire cleaners are as low. Table K-14: Percentile rankings for amount of Specialized Electronic Cleaners used in ounces per year (N-456 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Ounces 0.01 0.05 0.13 0.25 0.52 2.00 6.00 12.65 24.00 109.84 1024.00 The range between the minimum and maximum values in Table K-14 is quite substantial with minimum ounces per year at .01 and the maximum ounces per year at 1024.0. There is quite a difference between percentile points with the 95th percentile at 24.0 ounces per year and the 99th percentile at 109.84. 5-158 ------- Q8: Where did you use specialized electronic cleaners the last time you used them? Table K-15: Location of last use of the product (N=539 recent users) Basement Living room Other inside room Several inside rooms Garage Outside Garage & outside Total 5. 6-s 47.5% 36.0% 0% 9% 2. 3. 3.3% 1.7% 100.0% Most people (47.5%) used specialized electronic cleaners in the living room and 36.0% used it in an "other inside room". Of the remainder, 5.6% used it in the basement, 3.9% used it in the garage, 3.3% used it in the outside air, and 1.7% used it both in the garage and outside. 5-159 ------- Table K-16: Protective measures undertaken while using Specialized Electronic Cleaners Yes No 1. Door or window open to the Outside 32.5% 67.5% (N=511 recent inside users) 2. Exhaust fan on during use (N=512 recent inside users) 6.4% 93.6% 3. Whether inside door to room was open 70.4% 29.6 (N=510 recent inside users) 4. Whether directions on label were read 73.8% 26.2 (N=539 all recent users) The majority of the specialized electronic cleaner users did not have a door or window open to the outside (67.5%); did not have an exhaust fan on during use (93.6%); had the inside door to the room opened (70.4%); and had read the directions on the label (73.8%). Table K-17 covers derived variable ounces per use and it is derived by dividing Question 7 (ounces per year) by Question 3 (# of times used in the last year). Table K-17: Ounces per use of Specialized Electronic Cleaners (N=452 recent users) Mean # of ounces per use 1.83 Median # of ounces per use .50 Standard deviation 5.31 The mean ounces per use is 1.83. The median ounces per use is .50. 5-160 ------- Table K-18: Percentile rankings of ounces per use of Specialized Electronic Cleaners (N=452 recent users) Minimum 5% 10% 25% Median 75% 90% 95% 99% Maximum Ounces/Use 0.01 0.01 0.02 0.04 0.13 0.50 . 1.50 3.49 7.50 24.70 80.00 The percentile rankings for ounces per use range from a minimum of .01 to a maximum of 80 ounces. Table K-19: Respondent characteristics of Specialized Electronic Cleaners users 1. Respondent age (N=553 recent users) Mean 37.70 years 2 Respondent gender (N=553 recent users) Male Female 68.9 31.1 % 3. Number of household members (N=551 recent users) Mean 3.00 members 4. Number of bedrooms (N=552 recent users) Mean 2.90 bedrooms ble K-19 present th pecialized elect 1 pondent characterist The mean age users. s of f th th pondents is 37.70 y 9 f the respondents are 1 mean b f h f bedrooms haracterist is 2.90. Th hold memb e statist is 3.00; f th f pecialized elect d the _ pondent an b 1 users are 1 t th haracterist except th are a littl d the product (68.9 1 g (47.0%) y of the total s r and a higher pi f pondent percenta f 1 compared t th t 5-161 ------- 5-163 ------- L. Product 12: Latex Paint Latex paint is included as a paint product of interest; however, it is not thought to contain methylene chloride or its five substitute chemicals. Ql: Have you ever used latex paint? Table L-l: Numbers and % of respondents ever using Latex Paint Numbers Percent Yes No 2717 55.2 2201 44.8 Total 4918* 100.0 *2 cases where information was not ascertained Table L-l shows that 55.2% of the total respondents have "ever" used latex paint. This incidence of use is second only to contact cements and super glues. Q2: When was the last time you used latex paint? Table L-2: Last time Latex Paint was used in months (N=2710 users) Mean # of months 16.70 Median # of months 8.00 Standard deviation 28.20 As Table L-2 shows, the mean number of months since last use of latex paint is 16.70 months. The median number of months is 8.0. 5-165 ------- The percentile rankings for time since last use are shown below: Table L-3: Percentile rankings for Latex Paintmonths since last use (N=2710 users) Months Minimum 0.03 1% 0.03 5% 0.13 10% 0.46 25% 2.00 Median 8.00 75% 24.00 90% 36.00 95% 60.00 99% 144.00 Maximum 300.00 Table L~3 shows that 10th percentile users and below used the product last less than a month ago. The 75th percentile through the 100th percentile respondents report that they last used the product 24 months (2 years) ago through 300 months (25 years) ago. 5-166 ------- Q3: How many times have you used latex paint in the last 12 months? Table L-4: Number of uses of Latex Paint within the last 12 months (N=1794 recent users) Mean # of uses Median # of uses Standard deviation 3.93 2.00 20.81 The mean number of uses of the product in the last twelve months among users of the product in the last twelve months was 3.93 and the median 2.0. Almost seventy-five percent (74.7%) of these users used latex paint three times or less in the last twelve months with 44.6% using it once; 20.1% using it twice; and 10.0% using it three times. Table L-5: Percentile rankings of number of uses of Latex Paint within the last 12 months (N=1794 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Uses 1.00 1.00 1.00 1.00 1.00 2.00 4.00 6.00 10.00 30.00 800.00 5-167 ------- Q4: How much time did you spend using latex paint the last time you used it? Table L-6: Time spent using Latex Paint last time used (N=1769 recent users) Mean # of minutes 295.08 Median # of minutes 180.00 Standard deviation 476.11 The mean and median number of minutes for using latex paint are the highest of all the products. This might be expected as latex is usually used for large jobs such as painting a room. Table L-7: Percentile rankings for time spent using Latex Paint last time used (N=1769 recent users) Minutes Minimum 0.02 1% i.oo 5% 22.50 10% 30.00 25% 90.00 Median 180.00 75% 360.00 90% 480.00 95% 810.00 99% 2880.00 Maximum 5760.00 The minimum percentile is .02 and the maximum is 5760 minutes (96 hours). 5-168 ------- Q5: How much time did you spend in the room immediately after use the last time you used latex paint? Table L-8: Time spent in the room after last use of Latex Paint (N=1765 recent users) Mean # minutes in room 91.38 Median # minutes in room 5.00 Standard deviation 254.61 The mean number of minutes spent in the room after last use is 91.38 minutes as opposed to the median of five minutes. Table L-9: Percentile Rankings for time spent in the room after last use including those who did not spend any time in room but used Latex Paint (N=1765 r M i n imum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Minutes 0.00 0.00 0.00 0.00 0.00 5.00 60.00 240.00 480.00 1440.00 2880.00 Respondents at the 25th percentile or less did not spend any time in the room after using latex paint. Respondents at the higher percentile rankings spent from 60 minutes (1 hour) to 2880 minutes (48 hours). 5-169 ------- Table L-10: Percentile rankings for Latex Paint for time spent in the room after last use including only those who spent time in the room (N=1005 recent users who stayed in room) Minutes Minimum 1.00 1% 1.00 5% 1.00 10% 2.60 25% 10.00 Median 30.00 75% 180.00 90% 480.00 95% 600.00 99% 1440.00 Maximum 2880.00 Table L-10 is similar to Table L-9 except it includes only users who did, in fact, stay in the room. Therefore, all percentiles have non-zero values. 5-170 ------- Q6A: Which brand of latex paint did you use the last time you used it? Table L-ll: Brand distribution for Latex Paint Brand category Frequency Top brand Second highest brand Third highest brand Don't Knows and Not Ascertained All other named brands Total 369 168 124 385 755 1801 20.5 9.3 6.9 21.4 41.9 100.0 Seventy-eight percent (78.6%) of latex paint users specified a brand. The top three brands were used by 20.5%, 9.3% and 6.9% of the users, respectively. Q6B: Was the product in aerosol form? Table L-12: Percent of respondents saying Latex Paint is aerosol (N=1781 recent users) Yes, product is aerosol 1.3% No, product is nonaerosol 98.7% Respondents said that the product was nonaerosol in 98.7% of the cases. 5-171 ------- Q7: What size of latex paint did you use the last time you used it? How much of a can or how many cans did you use during the past year? The two questions above were used to derive the variable called ounces per year. Table L-13: Amount of Latex Paint used per year in ounces (N=1762 recent users) Mean ounces per year 371.27 Median ounces per year 256.00 Standard deviation 543.86 As might be expected, the mean ounces per year for latex paint is the highest amount compared to the amount used of other products. Table L-14: Percentile rankings for amount of Latex Paint used in ounces per year (N=1762 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95 99% Maximum Ounces 0.03 4.00 12.92 32.00 64.00 256.00 384.00 857.60 1280.00 2560.00 6400.00 The range between the minimum and maximum values in Table L-14 is substantial, with the minimum ounces per year at .03 and the maximum at 6400.0. 5-172 ------- Q8: Where did you use latex paint the last time you used it? Table L-15: Location of last use of the product (N=1770 recent users) Basement o Living room 9 . 9 Other inside room 47.6 Several inside rooms 11.6 Garage Outside 24.4 Garage & outside 1.7 2.0^5 Total 100.0 Most people (47.6%) used latex paint in an "other inside room" such as the bedroom or den. Of the remainder, 24.4% used it outside; 11.6% used it in several inside rooms; 9.9% used it in the living room; 2.8% used it in the basement; 2.0% used it in the garage; and 1.7% used it both outside and in the garage. 5-173 ------- Table L-16: Protective measures undertaken while using Latex Paint Yes No 1. Door or window open to the outside 75.8% 24.2% (N=1309 recent inside users) 2. Exhaust fan on during use (N=1303 recent inside users) 15.6% 84.4% 3. Whether inside door to room was open (N=1303 recent inside users) 84.7% 15.3 4. Whether directions on label were read 64.2% 35.8% (N=1766 all recent users) The majority of latex paint users did have a door or window open to the outside (75.8%); did not have an exhaust fan on during use (84.4%); had the inside door to the room opened (84.7%); and had read the directions on the label (64.2%). Table L-17 is a derived variable, ounces per use, and it is derived by dividing Question 7 (ounces per year) by Question 3 (# of times used in the last year). Table L-17: Ounces per use of Latex Paint (N=1759 recent users) Mean # of ounces per use 193.00 Median # of ounces per use 128.00 Standard deviation 310.40 Table L-17 indicates that the mean ounces per use is 193.0 and the median is 128.0. 5-174 ------- Table L-18: Percentile rankings of ounces per use of Latex Paint (N=1795 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Ounces/Use 0.02 1.49 5.12 10.67 32.00 128.00 240.00 448.00 704.00 1561.60 3840.00 he range of the percentile rankings goes from a minimum of 2 ounces per use to a maximum of 3840.0 Table L-19: Respondent characteristics of Latex Paint users 1. Respondent age Mean = 42.20 years (N=1795 recent users) 2. Respondent gender Male = 51.3% (N=1796 recent users) Female = 48.7% 3. Number of household members (N=1792 recent users) Mean = 3.20 members 4. Number of bedrooms Mean = 3.00 bedrooms (N=1796 recent users) Table L-19 presents the respondent characteristics of latex paint users. The mean age of these respondents is 42.20 years; 51.3% of the respondents are male; the mean number of household members is 3.20; and the mean number of bedrooms is 3.00. The statistics for the respondent characteristics of latex paint users are almost identical to the characteristics of the total sample of respondents. 5-175 ------- 5-177 ------- M. Product 13: Oil Paint Ql: Have you ever used oil paint? Table M-l: Numbers and % of respondents ever using Oil Paint Numbers Percent Yes No 1471 29.9 3447 70.1 Total 4918* 100.0 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ *2 cases where information was not ascertained Table M-l shows that 29.9% of the total respondents have "ever" used oil paint. Q2: When was the last time you used oil paint? Table M~2: Last time Oil Paint was used in months (N=1465 users) Mean # of months 30.40 Median # of months 12.00 Standard deviation 48.20 As Table M-2 shows, the mean number of months since last use of oil paint is 30.40 months. This is the third longest period of time since last use following only spray shoe polish and glass frostings. The median number of months is 12.0. 5-179 ------- The percentile rankings for time since last use are shown below: Table M-3: Percentage rankings for Oil Paintmonths since last use (N=1465 users) Months Minimum 0.03 1% 0.03 5% 0.23 10% 0.69 25% 3.00 Median 12.00 75% 36.00 90% 72.00 95% 120.00 99% 240.00 Maximum 480.00 Table M-3 shows that 10th percentile users and below used the product last less than a month ago. The 75th percentile through the 100th percentile respondents report that they last used the product 36 months (3 years) ago through 480 months (40 years) ago. The data appear to be subject to rounding which was discussed earlier under aspects of the data (i.e., 5, 10, 15 years rather than 5 years 3 months). The data is still usable for indicating the approximate last use- 5-180 ------- Q3: How many times have you used oil paint in the last 12 months? Table M-4: Number of uses of Oil Paint within the last 12 months (N=735 recent users) Mean # of uses Median # of uses Standard deviation 5.66 1.00 23.10 The mean number of times using the product in the last twelve months among users of the product in the last twelve months, was 5.7 and the median 1.0. Eighty and five-tenths of these users used the oil paint three times or less in the last twelve months with 50.9% using it once; 20.7% using it twice; and 9.0 q. using it three times. Table M-5: Percentile rankings of number of uses of Oil Paint within the last 12 months (N=735 recent users) Minimum 5% 10% 25% Median 75% 90% 95% 99% Maximum Uses 1.00 1.00 1.00 1.00 1.00 1.00 3.00 6.00 12.00 139.20 300.00 5-181 ------- Q4: How much time did you spend using oil paint the last time you used it? Table M-6: Time spent using Oil Paint last time used (N=726 recent users) Mean # of minutes 194.12 Median # of minutes 120.00 Standard deviation 345.68 The mean and median number of minutes for using oil paint are the second highest only to latex paint. Table M-7: Percentile rankings for time spent using the Oil Paint last time used (N=726 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Minutes 0.02 0.51 15.00 30.00 60.00 120.00 240.00 480.00 579.00 1702.80 5760.00 The minimum percentile is .02 and the maximum is 5760 minutes (96 hours). 5-182 ------- Q5: How much time did you spend in the room immediately after use the last time you used oil paint? Table M-8: Time spent in the room after last use of Oil Paint (N=724 recent users) Mean # minutes in room 44.56 Median # minutes in room 0.00 Standard deviation 155.19 The mean number of minutes spent in the room after last use is 44.56 minutes as opposed to the median of zero minutes. Table M-9: Percentile rankings for time spent in the room after last use including those who did not spend any time in room but used Oil Paint (N=724 recent users) Minutes Minimum 0.00 1% 0.00 5% 0.00 10% 0.00 25% 0.00 Median 0.00 75% 30.00 90% 120.00 95% 240.00 99% 480.00 Maximum 2880.00 Respondents at the 50th percentile or less did not spend any time in the room after using oil paint. Respondents at the higher percentile rankings spent from thirty minutes to 2880 minutes (forty-eight hours). 5-183 ------- Table M-10: Percentage Rankings for Oil Paint for time spent in the room after last use including only those who spent time in the room (N=*321 recent users who stayed in room) Minutes Minimum 1.00 1% 1.00 5% 2.00 10% 3.00 25% 10.00 Median 30.00 75% 120.00 90% 300.00 95% 480.00 99% 860.40 Maximum 2880.00 Table M-10 is similar to Table M-9 except it includes only users who did in fact stay in the room, therefore, all percentiles have non-zero values. 5-184 ------- Q6A: Which brand of oil paint did you use the last time you used it? Table M-ll: Brand distribution for Oil Paint Brand category Frequency Percent Top brand Second highest brand Third highest brand 69 9.3 39 5.2 37 5.0 Don't Knows and Not Ascertained 228 30.6 All other named brands Total 371 49.9 744 100.0 Sixty-nine percent (69.4%) of the users of the product specified a brand. The top three brands of oil paint were used by 9.3%, 5.2% and 5.0% of the users, respectively. Q6B: Was the product in aerosol form? Table M-12: Percent of respondents saying Oil Paint is aerosol (N=727 recent users) Yes, product is aerosol 3 . 6 I No, product is nonaerosol 96.4 Respondents said that the product was aerosol in only 3.6% of the cases. 5-185 ------- Q7: What size of oil paint did you use the last time you used it? How much of a can or how many cans did you use during the past year? The two questions above were used to derive the variable called ounces per year. Table M-13: Amount of Oil Paint used in ounces (N=702 recent users) Mean ounces per year 168.92 Median ounces per year 64.00 Standard deviation 367.82 As might be expected, the mean ounces used per year for oil paint is one of highest amounts second only to latex paint. Table M-14: Percentile rankings for amount of Oil paint used in ounces per year (N-702 recent users) Ounces Minimum 0.02 1% 0.33 5% 4.00 10% 8.00 25% 25.20 Median 64.00 75% 148.48 90% 384.00 95% 640.00 99% 1532.16 Maximum 5120.00 The range between the minimum and maximum values in Table M-14 is quite substantial with the minimum ounces per year at .02 and the maximum ounces per year at 5120.0. 5-186 ------- Q8: Where did you use oil paint the last time you used it? Table M-15: Location of last use of the product (N=726 recent users Basement 5.9% Living Room 5.9% Other inside room 35.4% Several inside rooms 3.3% Garage Outside 41.35 Garage & outside 2.1% 6.15 Total 100.0% Forty and three-tenths % used oil paint on the outside an 35.4% used it in an "other inside room". Six and one-tenth % sed it in the arae; 5.9% used it in the basement and anothe 5.9% used it in the livin room 3.3% used it in several insid rooms; and 2.1% used it in both the garage and outsi 5-187 ------- Table M-16: Protective measures undertaken while using Oil Paint Yes No 1. Door or window open to the outside 69.5% 30,5 (N=407 recent inside users) 2. Exhaust fan on during use (N=403 recent inside users) 16.4% 83.6 3. Whether inside door to room was open (N=401 recent inside users) 76.8% 23.2 4. Whether directions on label were read 68.6% 31.4 (N=716 all recent users) o The majority of the oil paint users did have a door or window open to the outside (69.5%); did not have an exhaust fan on during use (83.4%); had the inside door to the room opened (76.8%); and had read the directions on the label (68.6%). Table M-17 is a derived variable ounces per use and it is derived by dividing Question 7 (ounces per year) by Question 3 (# of times used in the last year). Table M-17: Ounces per use of Oil Paint (N=698 recent users) Mean # of ounces per use 107.69 Median # of ounces per use 32.00 Standard deviation 303.35 5-188 ------- Table M-18 indicates that the mean ounces per use is 107.69 and the median is 32.0. Table M-18: Percentile rankings of ounces per use of Oil Paint (N=698 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Ounces/Use 0.01 0.03 1.32 4.00 12.00 32.00 128.00 256.00 384.00 1281.28 5120.00 Table M-19: Respondent characteristics of Oil Paint users 1. Respondent age (N=741 recent users) Mean 43.10 years 2. Respondent gender (N=743 recent users) Male Female 56.8 43.2 Sr 3. Number of household members (N=739 recent users) Mean 3.20 members 4. Number of bedrooms (N=742 recent users) Mean 3.00 bedrooms aint users 56.8 f th tats 9 presen he res resondent characteris mea dts are f t resonden d the mea mean f be ics of oil 3.10 years; f houehl s t ondent characteris l aint user are almost identical to of resondents excet th t haracteis f the total sam are slihtly more mal as ss l ain 6.8%) compared i 5-189 ------- w VA NIS FIN AINS AN 5-191 ------- N. Product 14: Wood Stains^ Varnishes and Finishes Ql: Have you ever used wood stains, varnishes or finishes? Table N-l: Numbers and % of respondents ever using Wood Stains, Varnishes and Finishes Numbers Percent Yes No 2114 43 2803 57 Total 4917* 100 ^^^^^^^^^^^^^^^^^^^^^^^^____-^^^^^^^^^^^^^_^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^M^M^P|^^^^^l^rf^ta^M^^^^^^^^^^ *3 cases where information was not ascertained Table N-l shows that 43% of the total respondents have "ever" used wood stains, varnishes and finishes. This is a relatively high percentage when compared to this incidence for other products. Q2: When was the last time you used wood stains, varnishes or finishes? Table N-2: Last time Wood Stains, Varnishes and Finishes were used in months (N=2103 users) Mean # of months 23.20 Median # of months 9.00 Standard deviation 38.91 As Table N-2 shows, the mean number of months wood stains, varnishes and finishes were last used is 23.20 months. The median number of months is 9.0 and this adjusts for any extreme values given as answers to this questions. 5-193 ------- The percentile rankings for time since last use are shown below: Table N-3: Percentile rankings for Wood Stains, Varnishes and Finishesmonths since last use (N=2103 users) Months Minimum 0.03 1% 0.03 5% 0.16 10% 0.46 25% 2.00 Median 9.00 75% 24.00 90% 60.00 95% 108.00 99% 180.00 Maximum 360.00 The number of months since the product was last used ranges from a minimum of 0.03 months to a maximum of 360 months (30 years). Ninety-five percent of the respondents last used the product 108 months (9 years) ago or less. From the 75th percentile through the 100th percentile respondents report that they last used the product 24 months ago (2 years) through 360 months (30 years) ago. The data appear to be subject to rounding which was discussed earlier under aspects of the data (i.e., 5, 9, 30 years rather than 5 years 3 months). The data are usable for indicating the approximate last use. 5-194 ------- Q3: How many times have you used wood stains, varnishes or finishes in the last 12 months? Table N-4: Number of uses of Wood Stains, Varnishes and Finishes within the last 12 months (N=1259 recent users) Mean # of uses 4.21 Median # of uses 2.00 Standard deviation 12.19 The mean number of times the product was used in the last twelve months is 4.21 uses and the median is 2.0 uses. Of the 1,259 respondents who used the product in the last year, 47.6 used it once, 18.3% twice and 9% used it three times. Table N-5 which follows shows the percentile rankings for this variable which range from a minimum of 1 time to a maximum of 250 times. Ninety-five percent of the respondents used the product 12 times or less in the last year. Table N-5: Percentile rankings of times used the Wood Stains, Varnishes and Finishes within the last 12 months (N=1259 recent users) Uses Minimum 1.00 1% 1.00 5% 1.00 10% 1.00 25% 1.00 Median 2.00 75% 4.00 90% 7.00 95% 12.00 99% 50.80 Maximum 250.00 5-195 ------- Q4: How much time did you spend using wood stains, varnishes or finishes the last time you used it? Table N-6: Time spent using the Wood Stains, Varnishes and Finishes last time used (N=1247 recent users) Mean # of minutes 117.17 Median # of minutes 60.00 Standard deviation 193.05 The mean and median number of minutes for using wood stains, varnishes and finishes is 117.17 and 60 minutes respectively and is relatively high when compared to the time spent using most of the other 32 products surveyed. Table N-7: Percentile rankings for time spent using Wood Stains, Varnishes and Finishes last time used (N=1247 recent users) Minutes Minimum 0.02 1% 0.74 5% 5.00 10% 10.00 25% 30.00 Median 60.00 75% 120.00 90% 140.00 95% 360.00 99% 720.00 Maximum 280.00 Time spent using the product ranges from a minimum of 0.02 minutes to a maximum of 280 minutes (48 hours). Fifty percent of the respondents used the product for one hour or less. Ninety- nine percent of the respondents spent 720 minutes (12 hours) or less using the product. Time spent increased sharply at the 100th percentile to 280 minutes (48 hours). 5-196 ------- Q5: How much time did you spend in the room immediately after use the last time you used wood stains, varnish or finishes? Table N-8: Time spent in the room after use of Wood Stains, Varnishes and Finishes (N=1241 recent users) Mean # minutes in room 48.33 Median # minutes in room 1.00 Standard deviation 156.44 The mean number of minutes spent in the room after use is 48.33 minutes and the median is 1.0 minute. Table N-9: Percentile rankings for time spent in the room after use of Wood Stains, Varnishes and Finishes including those who did not spend any time in the room (N=1241 recent users) Minimum 1% 5% 10% 25% Median 90% 95% 99% Maximum Minutes 0.00 0.00 0.00 0.00 0.00 1.00 30.00 120.00 240.00 694.80 2880.00 Respondents at the 25th percentile and below did not spend any time in the room after using wood stains, varnishes or finishes. The maximum time spent in the room after use of the product is 2880 minutes (48 hours) which is the same as the maximum time spent using the product as seen in Table N-7. 5-197 ------- Table N-10: Percentile rankings for Wood Stains, Varnishes and Finishes for time spent in the room after use including only those who spent time in the room (N=642 recent users staying in room) Minimum 1% 5% 10% 25% Minutes 1.00 1.00 1.00 3.00 10.00 Median 30.00 75% 60.00 90% 240.00 95% 480.00 99% 1182.00 Maximum 2880.00 Table N-10 is similar to Table N-9 except it includes only users who did in fact stay in the room after use of the product. A total of 51.7% of the users who used the product in the last year did stay in the room after using the product. The mean time spent in the room after use is 93.40 minutes. This differs from the mean of 48.33 in Table N-8 as respondents who did not spend any time in the room after using the product have been excluded. Fifty percent of the respondents spent 30.0 minutes or less in the room after using the product. 5-198 ------- Q6A: Which brand of wood stain, varnish or finish did you use the last time you used it? Table N-ll: Brand distribution for Wood Stains, Varnishes and Finishes Brand category Frequency Percent 179 14.1 115 9.1 29 2.3 Top brand Second highest brand Third highest brand Don't Knows and Not Ascertained 465 36.7 All other named brands Total 480 37.8 1268 100.0 Sixty-three percent (63.3%) of the users who used the product in the last year specified a brand. The top three brands named were used by 14.1%, 9.1% and 2.3% of the respondents, respectively. Q6B: Was the product in aerosol form? Table N-12: Percent of respondents saying the Wood Stains, Varnishes and Finishes are in aerosol or non- aerosol form (N=1252 recent users) Yes, product is aerosol 7.5% No, product is nonaerosol 92.5% The majority of the respondents (92.5%) used a wood stain, varnish or finish which was in nonaerosol form. 5-199 ------- Q7: What size of wood stains, varnishes or finishes did you use the last time you used it? How much of a can or how many cans did you use during the past year? The two questions above were used to derive the variable called ounces per year. Table N-13: Amount of Wood Stains, Varnishes and Finishes used in ounces (N-1221 recent users) Mean ounces per year 65.06 Median ounces per year 16.00 Standard deviation 174.01 The mean ounces of the product used is 65.06 ounces and the median is 16.0* There is a big difference between the two statistics. This is because of a few extreme responses. The median adjusts for these extreme responses. Table N-14: Percentile rankings for amount of Wood Stains, Varnishes and Finishes used in ounces (N-1221 recent users) Minimu 1% 5% 1 25% Median 75 9 95 99% aximum Ounces 0.12 1.09 4.00 4.00 8.00 16.00 64.00 128.00 256.00 768.00 3840.00 The range between the minimum and maximum values in Table N-14 is quite substantial with the minimum ounces per year at 0.12 and the maximum ounces per year at 3,840.0. Ninety-five percent of the respondents used 256.0 ounces or less of the product during the year. This amount tripled at the 99th percentile. The ounces used at the 100th percentile is five times that at the 99th percentile and shows that a few of the respondents used a very large amount of the product. 5-200 ------- Q8: Where did you use wood stains, varnishes and finishes the last time you used it? Table N-15: Location of where product used last time (N=1247 recent users) Basement Living room Other inside room Several inside rooms Garage Outside Garage & outside 12.1% 7.8% 29.1 3.2 13.9 31.8 2.1% Total 100.0 The majority of the respondents, approximately 31.8%, used the product outside. A total of 29.1% used the product in an "other inside room", 13.9% used it in the garage, and 12.1% used it in the basement. 5-201 ------- Table N-16: Protective measures undertaken while using Wood Stains, Varnishes and Finishes Yes No I. Door or window open to the outside 64.2% 35.8 (N=822 recent inside users) 2. Exhaust fan on during use (N=819 recent inside users) 14.8% 85.2% 3. Whether inside door to room was open 74.3% 25.7 (N=810 recent inside users) 4. Whether directions on label were read 76.7% 23.3 (N=1238 all recent users) I The majority of the users of wood stains, varnishes or finishes did read the directions on the label (76.7%). A total of 64.2% did have a door or window open to the outside, 14.8% did have an exhaust fan on during use and 74.3% had the inside door to the room open. Table N-17 is a derived variable ounces per use and it is derived by dividing Question 7 (ounces per year) by Question 3 (# of times used in the last year). Table N-17: Ounces per use of Wood Stains, Varnishes and Finishes (N=1217 recent users) Mean # of ounces per use 33.72 Median # of ounces per use 12.00 Standard deviation 78.51 The mean ounces used per use of the product is 33.72 and the median is 12.0. Table N-18 which follows shows the percentile rankings for this variable and shows the ounces used per use ranges from a minimum of 0.02 ounces to a maximum of 960.0 ounces. Ninety-five percent of the users used 128.0 ounces or less of the product per use. 5-202 ------- Table N-18: Percentile rankings of ounces per use of Wood Stains, Varnishes and Finishes (N=1217 recent users) Minimum I 5% 10% 25% Median 75% 90% 95% 99% Maximum Ounces/Use 0.02 0.16 1.00 2.00 4.00 12.00 32.00 64.00 128.00 384.00 960.00 Table N-19: Respondent characteristics of Wood Stains, Varnishes and Finishes users 1. Respondent age Mean = 41.14 years (N=1267 recent users) 2. Respondent gender Male =51.1 (N=1268 recent users) Female =48.9 3. Number of household members (N=1265 recent users) Mean = 3.20 members 4. Number of bedrooms Mean = 3.04 bedrooms (N=1267 recent users) Table N-19 presents the respondent characteristics of wood stains, varnishes and finishes users. The mean age of these respondents is 41.14 years. The number of male respondents (51.1%) is approximately equal to the number of female respondents (48.9%). The statistics for the respondent characteristics of wood stains, varnishes and finishes users is approximately the same as the characteristics of the total sample of respondents. 5-203 ------- VE S/ 5-205 ------- o. Product 15: Paint Removers ers Ql: Have you ever used paint removers/strippers? Table 0-1: Numbers and % of respondents ever using Paint Removers/Strippers Numbers Percent Yes No Total 1498 3418 4916* 30.5 69.5 100.0 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ *4 cases where information was not ascertained Table O-l shows that 30.5% of the total respondents have "ever" used paint removers/strippers. This is a slightly higher incidence than the average incidence for all products. Q2: When was the last time you used paint removers/ strippers? Table 0-2: Last time Paint Removers/Strippers was used in months (N=1493 users) Mean # of months Median of months Standard deviation 29.00 12.00 43.69 A Tabl 0-2 /stripp hows, the m were last u mb d f months paint 29.0 month Th th fourth longest period of t thirty-t removi of mon product Th paint is ths is 12.0. t gaged y since last use f reflect that th in frequently. any f th h tivity edian f mb 5-207 ------- The percentile rankings for time since last use are shown below: Table 0-3: Percentile rankings for Paint Removers/Strippersmonths since last use (N=1493 users) Months Minimum 0.03 1% 0.03 5% 0.23 10% 0.69 25% 4.00 Median 12.00 75% 36.00 90% 72.00 95% 120.00 99% 240.00 Maximum 420.00 Table O-3 shows that 10th percentile users and below last used the product less than a month ago. The 75th percentile through the 100th percentile respondents report that they last used the product 36 months (3 years) ago through 420 months (35 years) ago and appears to be subject to rounding which was discussed earlier under aspects of the data (i.e. 5, 10, 15 years rather than 5 years 3 months). The data are still usable for indicating the approximate last use. 5-208 ------- Q3: How many times have you used paint removers/strippers in the last 12 months? Table 0-4: Number of uses of Paint Removers/Strippers within the last 12 months (N=761 recent users) Mean # of uses 3.68 Median # of uses 2.00 Standard deviation 9.10 The mean number of uses of the product in the last twelve months, was 3.68 and the median is 2.0 uses. Almost 77% of these users used the paint removers/strippers three times or less in the last twelve months with 49.3% using it once; 18.4% using it twice; and 9.5% using it three times. Table 0-5: Percentile rankings of times used Paint Removers/Strippers within the last 12 months (N=761 recent users) Uses Minimum 1.00 1% 1.00 5% 1.00 10% 1.00 25% 4.00 Median 2.00 75% 3.00 90 6.00 95% 11.80 99% 44.56 Maximum 100.00 5-209 ------- Q4: How much time did you spend using paint removers/strippers the last time you used it? Table 0-6: Time spent using Paint Removers/Strippers last time used (N=752 recent users) Mean # of minutes 125.57 Median # of minutes 60.00 Standard deviation 286.59 The mean and median number of minutes using for using paint removers/strippers are relatively high as would be expected for the time spent using a paint remover usually involves large jobs Table 0-7: Percentile rankings for time spent using the Paint Removers/Strippers last time used (N=752 recent users) Minutes Minimum 0.02 1% 0.38 5% 5.00 10% 5.00 25% 20.00 Median 60.00 75% 120.00 90% 240.00 95% 420.00 99% 1200.00 Maximum 4320.00 The minimum percentile is .02 and the maximum is 4320.0 minutes (72 hours). 5-210 ------- Q5: How much time did you spend in the room immediately after use the last time you used removers/strippers? Table 0-8: Time spent in the room after use of Paint Removers/Strippers (N=748 recent users) Mean # minutes in room 31.38 Median # minutes in room 0.00 Standard deviation 103.07 The mean number of minutes spent in the room after use is 31.38 minutes as opposed to the median of zero indicating that no time was spent in the room after use. Table 0-9: Percentile rankings for time spent in the room after use including those who did not spend any time in room but used Paint Removers/Strippers (N-748 recent users) Minutes Minimum 0.00 1% 0.00 5% 0.00 10% 0.00 25% 0.00 Median 0.00 75% 20.00 90% 60.00 95% 180.00 99% 541.20 Maximum 1440.00 Respondents at the 50th percentile or less did not spend any time in the room after using paint removers/strippers. Respondents at the higher percentile rankings spent between 20 minutes to 1440 minutes (24 hours). 5-211 ------- Table 0-10: Percentile rankings for Paint Removers/Strippers for time spent in the room after use including only those who spent time in the room (N=340 recent users staying in the room) Minutes Minimum 1.00 1% 1.00 5% 1.00 10% 3.10 25% 10.00 Median 30.00 75% 60.00 90% 180.00 95% 240.00 99% 826.20 Maximum 1440.00 Table 0-10 is similar to Table 0-9 except it includes only users who did in fact stay in the room, therefore, all percentiles have values. 5-212 ------- Q6A: Which brand of paint removers/strippers did you use the last time you used it? Table 0-11: Brand distribution for Paint Removers/Strippers Brand category Frequency Percent Top brand Second highest brand Third highest brand Don't Knows and Not Ascertained All other named brands Total 98 46 44 321 260 769 12.7 6.0 5.7 41.7 33.9 100.0 Fifty-eight percent (58.3%) of the users of the product specified a brand. The top three brands of paint removers/ strippers were used by 12.7%, 6.0%, and 5.7% of the users, respectively. Q6B: Was the product in aerosol form? Table 0-12: Percent of respondents saying Paint Removers/ Strippers are aerosol (N=752 recent users) Yes, product is aerosol 6.8-6 No, product is nonaerosol 93.2% Respondents said that the product was aerosol in only 6.8% of the cases. 5-213 ------- Q7: What size of paint removers/strippers did you use the last time you used it? How much of a can or how many cans did you use during the past year? The two questions above were used to derive the variable called ounces per year. Table 0-13: Amount of Paint Removers/Strippers used per year in ounces (N=737 recent users) Mean ounces per year 63.73 Median ounces per year 32.00 Standard deviation 144.33 As might be expected, the mean ounces used per year for paint removers/strippers is one of the highest amounts similar to the other products. Table 0-14: Percentile rankings for amount of Paint Removers/Strippers used in ounces (N=737 recent users) Ounces Minimum 0.64 1% 1.50 5% 4.00 10 O O 8.00 25% 16.00 Median 32.00 75% 64.00 90% 128.00 95% 256.00 99% 512.00 Maximum 2560.00 The range between the minimum and maximum values in Table 0-14 is substantial with a minimum ounces per year at .64 and the maximum ounces per year at 2560.0 5-214 ------- Q8: Where did you use paint removers/strippers the last time you used them? Table 0-15: Location of where product used last time (N=754 recent users) Basement 11.0% Living room 3.2% Other inside room 23.6% Several inside rooms 1.6% Garage Outside 18.7% 38.5 Garage & outside 3.4 o o Total 100.0% Most people (38.5%) used paint removers/strippers on the outside and 23.6% used it in an "other inside room" such as the bedroom or den. The remainder used it in the garage (18.7%); in the basement (11.0%); in both the garage and outside (3.4%); in the living room (3.2%); and in several inside rooms (1.6%). 5-215 ------- Table 0-16: Protective measures undertaken while using Paint Removers/Strippers Yes No 1. Door or window open to the outside 70.7% 29.3% (N=433 recent inside users) 2. Exhaust fan on during use (N=429 recent inside users) 15.6% 84.4% 3. Whether inside door to room was open 68.6% 31.4 (N=424 recent inside users) % 4. Whether directions on label were read 79.5% 20.5 (N=748 all recent users) I The majority of the users did have a door or window open to the outside (70.7%); did not have an exhaust fan on during use (84.4%); had the inside door to the room opened (68.6%); and had read the directions on the label (79.5%). Paint remover/strippers users have one of the highest percentages of respondents who kept a door or window opened to the outside. Table O-17 is a derived variable ounces per use and it is derived by dividing Question 7 (ounces per year) by Question 3 (# of times used in the last year). Table O-17: Ounces per use of Paint Removers/Strippers (N=735 recent users) Mean # of ounces per use 29.84 Median # of ounces per use 16.00 Standard deviation 50.28 The mean number of ounces used per use is 29.8 and the median is 16.0. 5-216 ------- Table O-18 indicates that there is a substantial range from a minimum of .23 to a maximum of 512.0 ounces per use. Table O-18: Percentile rankings of ounces per use of Paint Removers/Strippers (N=735 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Ounces/Use 0.23 0.65 1.60 2.67 7.15 16.00 32.00 64.00 128.00 256.00 512.00 Table 0-19: Respondent characteristics of Paint Removers/Strippers 1. Respondent age Mean = 40.20 years (N=768 recent users) 2. Respondent gender Male = 51.9% (N=767 recent users) Female = 48.1 3. Number of household members (N=766 recent users) Mean =3.10 members 4. Number of bedrooms Mean =3.00 bedrooms (N=768 recent users) Table 0-19 presents the respondent characteristics of paint emovers/strippers users. The mean age of these respondents is 0.20 years; 51.9% of the respondents are male; the mean number f household members is 3.10; and the mean number of bedrooms is .00. The statistics for the respondent characteristics of paint emover/strippers users is almost identical to the haracteristics of the total sample of respondents except the population is slightly younger and slightly more users are mal 5-217 ------- IN NNE 5-219 ------- P. Product 16: Paint Thinners Ql: Have you ever used paint thinners? Table P-l: Numbers and % of respondents ever using Paint Thinners Numbers Percent Yes No 1755 35.7 3162 64.3 Total 4917* 100.0 *3 cases where information was not ascertained Table P-l shows that 35.7% of the total respondents have "ever" used paint thinners. This is a relatively high percentage when compared to this incidence for other products. Q2: When was the last time you used paint thinners? Table P-2: Last time Paint Thinners were used in months (N=1747 users) Mean # of months 21.50 Median # of months 7.00 Standard deviation 38.89 As Table P-2 shows, the mean number of months since last use of paint thinners is 21.50 months. The median number of months is 7.0. 5-221 ------- The percentile rankings for time since last use are shown below: Table P-3: Percentile rankings for Paint Thinnersmonths since last use (N=1747 users) Months Minimum 0.03 1% 0.03 5% 0.10 10% 0.23 25% 1.00 Median 7.00 75% 24.00 90% 60.00 95% 96.00 99% 240.00 Maximum 360.00 Table P-3 shows that 10th percentile users and below last used the product less than a month ago. The 75th percentile through the 100th percentile respondents report that they last used the product 24 months (2 years) ago through 360 months (30 years) ago. The data appear to be subject to rounding which was discussed earlier under aspects of the data (i.e. 5, 10, 15 years rather than 5 years 3 months). The data is still usable for indicating the approximate last use. 5-222 ------- Q3: How many times have you used paint thinners in the last 12 months? Table P-4: Number of uses of Paint Thinners within the last 12 months (N=1104 recent users) Mean # of times 6.78 Median # of times 2.00 Standard deviation 22.10 The mean number of uses of the product in the last twelve months among users of the product in the last twelve months was 6.8 and the median 2.0. Almost 68% of these users used the paint thinners three times or less in the last twelve months with 37.4 using it once; 19.7% using it twice; and 10.7% using it three times. Table P-5: Percentile rankings of number of uses of Paint Thinners within the last 12 months (N=1104 recent users) Uses Minimum .03 1% 5% 10% 03 10 23 25% 1.00 Median 2.00 75% 4.00 90% 12.00 95% 23.00 99% 100.00 Maximum 352.00 5-223 ------- Q4: How much time did you spend using paint thinners the last time you used it? Table P-6: Time spent using the Paint Thinners last time used (N=1087 recent users) Mean # of minutes 39.43 Median # of minutes 10.00 Standard deviation 114.85 The mean number of minutes is 39.43 and median number of minutes for using paint thinners is 10.0. Table P-7: Percentile rankings for time spent using the Paint Thinners last time used (N=1087 recent users) Minutes Minimum 0.02 1% 0.08 5% 1.00 10% 2.00 25% 5.00 Median 10.00 75% 30.00 90% 60.00 95% 180.00 99% 480.00 Maximum 2400.00 The minimum percentile is .02 and the maximum is 2400 minutes (40 hours). 5-224 ------- Q5: How much time did you spend in the room immediately after use the last time you used paint thinners? Table P-8: Time spent in the room after last use of Paint Thinners (N=1079 recent users) Mean # minutes in room 32.86 Median # minutes in room 0.00 Standard deviation 105.62 The mean number of minutes spent in the room after last use is 32.86 minutes as opposed to the median of zero where no time was spent in the room after use. Table P-9: Percentile rankings for time spent in the room after last use including those who did not spend any time in room but used Paint Thinners (N=1079 recent users) Minimum i -L 5% 10% 25% Median 75% 90% 95% 99% Maximum Minutes 0.00 0.00 0.00 0.00 0.00 0.00 15.00 60.00 180.00 480.00 1440.00 Respondents at the 50th percentile or less did not spend any time in the room after using paint thinners. Respondents at the higher percentile rankings spent from 15 minutes to 1440 minutes (24 hours). 5-225 ------- Table P-10: ^^^^ Percentile rankings for Paint Thinners for time spent in the room after last use including only those who spent time in the room (N=486 recent users who stayed in room) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Minutes 1.00 1.00 1.00 2.00 5.00 20.00 60.00 180.00 360.00 720.00 1440.00 percentiles have values. ^^^^^^^^^^ ^^^^^ ay in e P'9 6XCept i e room' therefore, all only 5-226 ------- Q6A: Which brand of paint thinners did you use the last time you used it? Table P-ll: Brand distribution for Paint Thinners Brand category Frequency Percent Top brand Second highest brand Third highest brand Don't Knows and Not Ascertained All other named brands Total 70 36 22 646 339 1113 6.3 3.2 2.0 58.0 30.5 100.0 Forty-two percent (42.0%) of the users of the product specified a brand. The top three brands of paint thinners were used by 6.3%, 3.2% and 2.0% of the users, respectively. Q6B: Was the product in aerosol form? Table P-12: Percent of respondents saying Paint Thinners are aerosol (N-1090 recent users) Yes, product is aerosol 2.5% No, product is nonaerosol 97.5% Essentially most paint thinners come in nonaerosol form. 97. % were nonaerosol. 5-227 ------- Q7: What size of paint thinner did you use the last time you used it? How much of a can or how many cans did you use during the past year? The two questions above were used to derive the variable called ounces per year. Table P-13. Amount of Paint Thinner used per year in ounces (N=1053 recent users) Mean ounces per year 69.45 Median ounces per year 20.50 Standard deviation 190.55 Paint thinners are one of the highest ounces per year used at 69.45. Only the categories of latex paint, oil paint, outdoor water repellent, and auto primers are higher. Table P-14: Percentile rankings for amount of Paint Thinners used in ounces (N=1053 recent users) Ounces Minimum 0.03 1% 0.45 5% 3.10 10% 4.00 25% 8.00 Median 20.48 75% 64.00 90% 128.00 95% 256.00 99% 640.00 Maximum 3200.00 The range between the minimum and maximum values in Table P-14 is quite substantial with the minimum ounces per year at .03 and the maximum ounces per year at 3200.0. 5-228 ------- Q8: Where did you use paint thinners the last time you used them? Table P-15: Location of where product used last time (N=1087 recent users) Basement 13.4% Living room 2.8% Other inside room 19.6% Several inside rooms 1.7% Garage Outside 19.4% 39.9% Garage & outside 3.1% Total 100.0% Most people (39.9%) used paint thinners outside; 19.6% used q, 'o it in another inside room; 19.4% used it in the garage; 13.4 used it in the basement; 3.1% used it in the garage and outside; 2.8% used it in the living room; and 1.7% used it in several inside rooms. 5-229 ------- Table P-16: Protective measures undertaken while using Paint Thinners Yes No 1. Door or window open to the outside 67.3% 32.7% (N=614 recent inside users) 2. Exhaust fan on during use (N=612 recent inside users) 10.5% 89.5% 3. Whether inside door to room was open (N=599 recent inside users) 67.8% 32.2% 4. Whether directions on label were read 59.4% 40.6% (N-1071 all recent users) The majority of users of paint thinners did have a door or window open to the outside (67.3%); did not have an exhaust fan on during use (89*5%); had the inside door to the room opened (67.8%); and had read the directions on the label (59.4%) Table P-17 is a derived variable ounces per use and it is derived by dividing Question 7 (ounces per year) by Question 3 (# of times used in the last year). Table P-17: Ounces per use of Paint Thinners (N=1050 recent users) Mean # of ounces per use 23.67 Median # of ounces per use 9.40 Standard deviation 52.35 Table P-17 indicates that the mean ounces per use is 23.67 and the median is 9.40. 5-230 ------- Table P-18: Percentile rankings of ounces per use of Paint Thinners (N=1050 recent users) Minimum i X 5 10 25% Median 75% 90% 95% 99% Maximum Ounces/Use 0.03 0.10 0.66 1.33 4.00 9.37 21.33 64.00 96.00 223.36 1024.00 The percentiles range from a minimum of .03 ounces per use to a maximum of 1024.0 ounces per use. Table P-19: Respondent characteristics of Paint Thinner users 1. Respondent age Mean = 42.50 years (N=ll08 recent users) 2. Respondent gender Male =61.3 recent users) Female =38.7 I 3. Number of household members (N=1106 recent users) Mean = 3.10 members 4. Number of bedrooms Mean = 3.00 bedrooms (N=1109 recent users) Table P-19 presents the respondent characteristics of paint thinner users. The mean age of these respondents is 42.50 years; 61.3% of the respondents are male; the mean number of household members is 3.10; and the mean number of bedrooms is 3.00. The statistics for the respondent characteristics of paint thinner users are almost identical to the characteristics of the total sample of respondents except the respondents are slightly younger and there are more male users 61.3% compared to 47.0% for the sample as a whole. 5-231 ------- NT 5-233 ------- Q. Product 17: Aerosol int Ql: Have you ever used aerosol spray paint? Table Q-l: Numbers and % of respondents ever using Aerosol Spray Paint Numb e r s Percent Yes No Total 1743 3174 4917* 35.4 64.6 100.0 *3 cases where information was not ascertained Tabl Q-l h that 35.4% of the total respondents h d percentag th 1 spray paint Th a latively high ly six products having a higher incid Q2: When was the last time you used aerosol spray paint? Table Q-2: Last time Aerosol Spray Paint was used in months (N=1737 users) Mean # of months Median # of months Standard deviation 17.20 6.00 31.10 As Table Q-2 shows, the mean number of months since last use of aerosol spray paint is 17.20 months. This is about an average period of time since last use for any of the thirty-two products. The median number of months is 6.0. 5-235 ------- The percentile rankings for time since last use are shown below: Table Q-3: Percentile rankings for Aerosol Spray Paint months since last use (N=1737 users) Minimum 1% 5% 10% 25% Median 75% 90% 95% Months 0.03 0.03 .10 .23 1.00 6.00 18.00 48.00 72.00 99% 180,00 Maximum 240.00 Table Q-3 shows that 10th percentile users and below last used the product less than a month ago. The 75th percentile through the 100th percentile respondents report that they last used the product 18 months ago through 240 months (20 years) ago. This appears to be subject to rounding which was discussed earlier under aspects of the data (i.e., 5, 10, 15 years rather than 5 years 3 months). The data are still usable for indicating the approximate last use. Q3: How many times have you used aerosol spray paint in the last 12 months? Table Q-4: Number of uses of Aerosol Spray Paint within the last 12 months (N=1178 recent users) Mean # of times Median # of times Standard deviation 4.22 2.00 15,59 The mean number of times using the product in the last twelve months among users of the product in the last twelve months, was 4.22 and the median 2.0. A total of 74.6% of these users used aerosol spray paint three times or less in the last twelve months with 43.8% using it once; 20.5% using it twice; and 10.4% usincr it three times. 5-236 ------- Table Q-5: Percentile rankings of number of uses of Aerosol Spray Paint within the last 12 months (N=1178 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Uses 1.00 1.00 1.00 1.00 1.00 2.00 4.00 6.10 12.00 31.05 365.00 5-237 ------- Q4: How much time did you spend using aerosol spray paint the last time you used it? Table Q-6: Time spent using Aerosol Spray Paint last time used Mean # of minutes Mean # of minutes 39.54 20.00 Standard deviation 87.79 The mean number of minutes for using aerosol spray paint is 39.54 minutes and the median is 20.0. Table Q-7: Percentile rankings for time spent using the aerosol spray paint last time used Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Minutes .02 0.17 2.00 5.00 10.00 20.00 45.00 60.00 120.00 300.00 Maximum 1800.00 The minimum percentile is .02 and the maximum percentile is 1800.0 minutes (30 hours). Respondents appear to be giving the total time the job took rather than the amount for the last occasion. 5-238 ------- Q5: How much time did you spend in the room immediately after use the last time you used aerosol spray paint? Table Q-8: Time spent in the room after last use of Aerosol Spray Paint (N=1158 recent users) Mean # minutes in room 12.70 Mean # minutes in room 0.00 Standard deviation 62.80 The mean number of minutes spent in the room after last use is 12.70 minutes as opposed to the median of zero minutes. Table Q-9: Percentile rankings for time spent in the room after last use including those who did not spend any time in room but used Aerosol Spray Paint (N=1158 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Minutes 0.00 0.00 0.00 0.00 0.00 0.00 1.00 30.00 60.00 260.50 1440.00 Respondents at the 50th percentile or less did not spend any time in the room after using aerosol spray paint. Respondents at the higher percentile rankings spent from 1 minute to 1440.0 minutes (24 hours). 5-239 ------- Table Q-10: Percentile rankings for aerosol spray paint for time spent in the room after last use including only those who spent time in the room (N=305 recent users who stayed in room afterwards) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Minutes 1.00 1.00 1.00 2.00 5.00 15.00 60.00 120.00 222.00 480.00 Maximum 1440.00 Table Q-10 is similar to Table Q-9 except it includes only users who did in fact stay in the room, therefore, all percentiles have values. 5-240 ------- Q6A: Which brand of aerosol spray paint did you use the last time you used it? Table Q-ll: Brand distribution for Aerosol Spray Paint Brand category Frequency Percent 269 22.6 152 12.8 37 .1 Top brand Second highest brand Third highest brand Don't Knows and Not Ascertained 439 36.9 All other named brands Total 293 27.6 1190 100.0 Sixty-three percent (63.1%) of the users of the product specified a brand. The top three brands of aerosol spray paint were used by 22.6%, 12.8% and 3.1% of the users, respectively. Q6B: Was the product in aerosol form? Table Q-12: Percent of respondents saying Aerosol Spray Paint is aerosol (N=1164 recent users) Yes, product is aerosol 99.2 No, product is nonaerosol 0.8 I The product was aerosol spray paint so all items should be aerosol. Respondents said that the product was aerosol in 99.2 of the cases. The 0.8% saying it was nonaerosol either forgot to check the box indicating it was aerosol or perhaps used a spray pump and thought this was to be included. 5-241 ------- Q7: What size of aerosol spray paint did you use the last ^H ^^H ^^^^^^^^^H time you used it? How much of a can or how many cans _*i j ji .. . « . _ J did you use during the past y The two questions above were used to derive the variabl lied ounces per y Table Q-13: Amount of Aerosol Spray Paint used in ounces (N=1121 recent users) Mean ounces per year 30.75 Median ounces per year 13.00 Standard deviation 52.84 The mean number of ounces user per year is 30.75 and th dian is 13.0. Table Q-14: Percentile rankings for amount of Aerosol Spray Paint used in ounces (N=1121 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Ounces 0.02 0.75 2.01 3.25 7.00 13.00 32.00 65.00 104.00 240.00 Maximum 1053.00 he range between the minimum and maximum values in Tabl Q-14 is quite substantial with the minimum ounces per year at .02 and the maximum ounces per year at 1053.0. 5-242 ------- Q8: Where did you use Aerosol Spray Paint the last time you used it? Table Q-15: Location of where product used last time (N=1160 recent users) Basement 7.3% Living room 0.8% Other inside room 9.2% Several inside rooms 0.5% Garage Outside 15.8% 64.1% Garage & Outside 2.3% Total 100.0% Most people (64.1%) used aerosol spray paint in the outsid air. Of the remainder, 15.8% used it in the garage; 9.2% used it in another inside room; 7.3% used it in the basement; 2.3% used t both in the garage and in the outside; .8% used it in th livina room; and 5% used it in several inside rooms. 5-243 ------- Table Q-16: Protective measures undertaken while using Aerosol Spray Paint Yes No 1. Door or window open to the outside 62.9% 37.1 (N=385 recent inside users) 2. Exhaust fan on during use (N=382 recent inside users) 9.9% 90.1% 3. Whether inside door to room was open (N=375 recent inside users) 61.1% 38.9% 4. Whether directions on label were read 73.2% 26.8% (N=1138 all recent users) The majority of the aerosol spray paint users did have a door or window open to the outside (62.9%); did not have an exhaust fan on during use (90.1%); had the inside door to th room opened (61.1%); and had read the directions on the label 3.2%) Table Q-17 is a derived variable ounces per use and it is derived by dividing Question 7 (ounces per year) by Question 3 (# of times used in the last year). Table Q-17: Ounces per use of aerosol spray paint (N=lll8 recent users) Mean # of ounces per use 13.80 Median # of ounces per use 8.00 Standard deviation 24.40 Table Q-17 indicates a mean minutes per use of 13.80 and a median of 8.0. 5-244 ------- Table Q-18: Percentile rankings of ounces per use of Aerosol Spray Paint (N=1118 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Ounces/Use 0.01 0.19 0.80 1.50 3.50 8.00 16.00 26.00 39.00 96.00 526.50 Table Q-19: Respondent characteristics of Aerosol Spray Paint users 1. Respondent age Mean = 41.80 years (N=1189 recent users) 2. Respondent gender Male =54.2 (N=1189 recent users) Female =45.8 & 3. Number of household members (N=1178 recent users) Mean =3.10 members 4. Number of bedrooms Mean = 3.00 bedrooms (N=1188 recent users) Table Q-19 presents the respondent characteristics of Aerosol Spray Paint users. The mean age of these respondents is 41.80 years; 54.2% of the respondents are male; the mean number of household members is 3.10; and the mean number of bedrooms is 3.00. The statistics for the respondent characteristics of aerosol spray paint users is almost identical to the characteristics of the total sample of respondents. Slightly more males use this product than are in the sample as a whole. 5-245 ------- M AN (EXC AUT M ME NG VE) 5-247 ------- R. Product 18: Primers and ecial Primers nonautomot ive) Ql: Have you ever used primers Table R-l: Numbers and Primers of respondents ever using Numbers Percent Yes No Total 684 4232 4916* 13.9 86.1 100.0 *4 cases where information was not ascertained Table R-l shows that 13.9% of the total respondents have "ever" used primers. This is an average incidence when compared to this incidence for other products. Q2: When was the last time you used primers? Table R-2: Last time Primers were used in months (N=682 users) Mean # of months Median # of months Standard deviation 22.00 10.00 36.42 As Table R-2 shows, the mean number of months since last use of primers is 22.0 months. The median number of months is 10.0. 5-249 ------- The percentile rankings for time since last use are shown below: Table R-3: Percentile rankings for Primersmonths since last use (N=682 users) Months Minimum 0.03 1% 0.03 5% 0.20 10% 0.46 25% 2.00 Median 10.00 75% 24.00 90% 60.00 95% 84.00 99% 206.04 Maximum 360.00 Table R-3 shows that 10th percentile users and below since last used the product less than a month ago. The 75th percentile through the 100th percentile respondents report that they last used the product 24 months (2 years) ago through 360 months (30 years) ago. This appears to be subject to rounding which was discussed earlier under aspects of the data (i.e. 5, 10, 15 years rather than 5 years 3 months). The data are still usable for indicating the approximate last use. 5-250 ------- Q3: How many times have you used primers in the last 12 months? Table R-4: Number of uses of Primers within the last 12 months (N=396 recent users) Mean # of uses 3.43 Median # of times 1.00 Standard deviation 8.76 The mean number of uses of the product in the last twelve months among users of the product in the last twelve months, is 3.43 and the median 1.0. A total of 80.3% of these users used primers three times or less in the last twelve months with 53.3 using it once; 18.9% using it twice; and 8.1% using it three times. Table R-5: Percentile rankings of number of uses of Primers within the last 12 months (N=396 recent users) Uses Minimum 1.00 1% 1.00 5% 1.00 10% 1.00 25% 1.00 Median 1.00 75% 3.00 90% 6.00 95% 10.00 99% 50.06 Maximum 104.00 5-251 ------- Q4: How much time did you spend using primers the last time you used it? Table R-6: Time spent using Primers the last time used (N=381 recent users) Mean # of minutes 91.29 Median # of minutes 30.00 Standard deviation 175.05 The mean and median number of minutes for using primers is relatively high; only six products are higher. Table R-7: Percentile rankings for time spent using the Primers last time used (N-381 recent users) Minutes Minimum 0.05 1% 0.24 5% 3.00 10% 5.00 25% 15.00 Median 30.00 75% 120.00 90% 240.00 95% 360.00 99% 981.60 Maximum 1920.00 The minimum percentile is .05 and the maximum is 1920.0 minutes (32 hours). 5-252 ------- Q5: How much time did you spend in the room immediately after use the last time you used primers? Table R-8: Time spent in the room after last use of Primers (N=383 recent users) Mean # minutes in room 22.28 Median # minutes in room 0.00 Standard deviation 65.57 The mean number of minutes spent in the room after last use is 22.28 minutes as opposed to the median of zero minut Table R-9: Percentile rankings for time spent in the room after last use including those who did not spend any time in room but used Primers (N=383 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Minutes 0.00 0.00 0.00 0.00 0.00 0.00 10.00 60.00 120.00 319.20 720.00 Respondents at the 50th percentile or less did not spend any time in the room after using primers. Respondents at the higher percentile rankings spent from ten to twelve hours. 5-253 ------- Table R-10: Percentile rankings for Primers for time spent in the room after last use including only those who spent time in the room (N=129 recent users who stayed in the room) Minutes Minimum 1.00 1% 1.00 5% 1.50 10% 5.00 25% 10.00 Median 30.00 75% 60.00 90% 180.00 95% 240.00 99% 648.00 Maximum 720.00 Table R-10 is similar to Table R-9 except it includes only users who did in fact stay in the room, therefore, all percentiles have values. 5-254 ------- Q6A: Which brand of primers did you use the last time you used it? Table R-ll Brand distribution for Primers Brand category Frequency Percent Top brand Second highest brand Third highest brand Don't Knows and Not Ascertained All other named brands Total 64 28 19 156 139 406 15.8 6.9 4.7 38.4 34.2 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 100.0 Sixty-two percent (61.6%) of the users of the product specified a brand. The top three brands of primers were used by 15.8%, 6.9% and 4.7% of the users, respectively. Q6B: Was the product in aerosol form? Table R-12: Percent of respondents saying Primers are aerosol (N=383 recent users) Yes, product is aerosol 42.0 No, product is nonaerosol 51.2 g, "o The product was aerosol in 42.0% of the cases. 5-255 ------- Q7: What size of primers did you use the last time you used it? How much of a can or how many cans did you use during the past year? The two questions above were used to derive the variable called ounces per year. Table R-13: Amount of Primers used per year in ounces (N=364 recent users) Mean ounces per year 68.39 Median ounces per year 16.00 Standard deviation 171.21 As might be expected, the mean ounces per year for primers is one of the highest amounts compared to the amount used of other products. Only five products have higher amounts. Table R-14: Percentile rankings for amount of Primers used in ounces (N=364 recent users) Ounces Minimum 0.01 1% 0.09 5% 1.30 10% 3.23 25% 8.00 Median 16.00 75% 60.00 90% 128.00 95% 256.00 99% 867.75 Maximum 1920.00 The range between the minimum and maximum values in Table R-14 is quite substantial with the minimum ounces per year at .01 and the maximum ounces per year at 1920.0. There is quite a difference between percentile points with the 75th percentile at 60.0 ounces per year and the 100th percentile at 1920.0. 5-256 ------- Q8: Where did you use primers the last time you used them? Table R-15: Location of last use of the product (N=383 recent users) Basement 4.2% Living room 1.8% Other inside room 19.6 Several inside rooms 2.9% Q, 'O Garage Outside 15.7% 52.5% Garage & outside 3.4% Total 100.0% Most people (52.5%) used primers outside; 19.6% used it in an other inside room; 15.7% used it in the garage; 4.2% used it in the basement; 3.4% used it in both the garage and outside; 2.9% used it in several inside rooms; and 1.8% used it in the living room. 5-257 ------- Table R-16: Protective measures undertaken while using Primers Yes No 1. Door or window open to the outside 77.7% 22.3 (N=166 recent inside users) 2. Exhaust fan on during use (N=165 recent inside users) 16.4% 83.6% 3. Whether inside door to room was open (N=164 recent inside users) 67.7% 32.3 4. Whether directions on label were read 73.5% 26.5% (N=377 all recent users) The majority of users of primers did have a door or window open to the outside (77.7%); did not have an exhaust fan on during use (83.6%); had the inside door to the room opened (67.7%); and had read the directions on the label (73.5%). Table R-17 is a derived variable ounces per use and it is derived by dividing Question 7 (ounces per year) by Question 3 (# of times used in the last year). Table R-17: Ounces per use of Primers (N=363 recent users) Mean # of ounces per use 42.14 Median # of ounces per use 11.00 Standard deviation 110.47 5-258 ------- Table R-18 indicates that the minimum percentile is 0.1 and the maximum is 1053.0. Table R-18: Percentile rankings of ounces per use of Primers (N=363 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Ounces/Use 0.01 0.02 0.65 1.29 4.33 11.00 32.00 94.00 230.80 604.16 1053.00 Table R-19: Respondent characteristics of users of Primers 1. Respondent age Mean = 43.60 years (N=405 recent users) 2. Respondent gender Male = 65.8% (N=406 recent users) Female = 34.2% 3. Number of household members Mean = 3.00 members (N=405 recent users) 4. Number of bedrooms Mean = 3.00 bedrooms (N=406 recent users) Table R-19 presents the respondent characteristics of users of primers. The mean age of these respondents is 43.60 years; 65.8% of the respondents are male; the mean number of household members is 3.00; and the mean number of bedrooms is 3.00. The statistics for the respondent characteristics of users of primers are almost identical to the characteristics of the total sample of respondents except more males use the product than are in the sample at large. 5-259 ------- AE EM VE 5-261 ------- S. Product 19: Aerosol Rust Removers Ql: Have you ever used an aerosol rust remover? Table S-l: Numbers and % of respondents ever using Aerosol Rust Removers Numbers Percent Yes No 403 8.2 4514 91.8 Total 4917* 100.0 *3 cases where information was not ascertained Table S-l shows that only 8.2% of the total respondents h "ever" used aerosol rust removers. This is a relatively low percentage when compared to this incidence for other products. Q2: When was the last time you used aerosol rust removers? Table S-2: Last time Aerosol Rust Remover was used in months (N=400 users) Mean # of months 15.10 Median # of months 5.00 Standard deviation 30.79 As Table S-2 shows, the mean number of months since last use f aerosol rust remover is 15.10 months and the median is 5.0 months. The mean is approximately three times the size of th median. This difference is on account of a few extreme respo to this Question. 5-263 ------- Th b percentil k g t w since last use are sh Table S-3: Percentile rankings for Aerosol Rust Removers months since last use (N=400 users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Months 0.03 0.03 0.07 0.16 1.00 5.00 12.00 36.00 60.00 180.00 240.00 Table S-3 shows that the months since the product was last used range from a minimum of 0.03 months to monhs (20 years) a maximum of 240.0 ^^^^ ^^^^^^^^ Twenty-five percent of the respondents used the product one month or less ago and 95% of the product last 60.0 months (4 years) or less ago months reported may be subject to rounding discussed earlier asPect? of the data (i.e. 3, 5, 15 years rather than 5 users used the The number of years 3 months). approximate last use. The data are usable for indicating the ^^^^^^H ^^H ^^^^^^ ^^^^^^^^ 5-264 ------- Q3: How many times have you used aerosol rust removers in the last 12 months? Table S-4: Number of uses of Aerosol Rust Remover within the last 12 months (N=290 recent users) Mean # of uses 6.17 Median # of times 2.00 Standard deviation 9.82 The mean number of uses aerosol rust removers were used in the last 12 months is 6.17 times and the median is 2.0 times. Of the 290 respondents to this question, 33.8% used it once, 17.6 used it twice and 11% used it three times in the last year. As shown in Table S-5 which follows, 99% of the respondents used the product 50.90 times or less in the last year. The maximum number of times the product is used is 80.0. Table S-5: Percentile rankings of number of uses of Aerosol Rust Removers within the last 12 months (N=290 recent users Uses Minimum 1.00 1% 1.00 5% 1.00 10% 1.00 25% 1.00 Median 2.00 75% 6.00 90% 15.00 95% 24.45 99% 50.90 Maximum 80.00 5-265 ------- Q4: How much time did you spend using aerosol rust remover the last time you used it? Table S-6: Time spent using the Aerosol Rust Remover last time used (N=282 recent users) Mean # of minutes 18.57 Median # of minutes 5.00 Standard deviation 48.54 The mean and median number of minutes for using aerosol rust removers are 18.57 and 5.0 minutes respectively. Table S-7: Percentile rankings for time spent using the Aerosol Rust Remover last time used (N=282 recent users) Minutes Minimum 0.02 1% 0.05 5% 0.17 10% 0.25 25% 2.00 Median 5.00 75% 20.00 90% 60.00 95% 60.00 99% 130.20 Maximum 720.00 The time spent using the aerosol rust remover ranges from a minimum of 0.02 minutes to 720 minutes (12 hours) at the 100th percentile. Ninety-five percent of the respondents spent one hour or less using the product. 5-266 ------- Q5: How much time did you spend in the room immediately after use the last time you used aerosol rust removers? Table S-8: Time spent in the room after use of Aerosol Rust Removers (N=282 recent users) Mean # minutes in room 15.06 Median # minutes in room 0.00 Standard deviation 47.58 The mean number of minutes spent in the room after use is 15.06 minutes and the median is 0.0 minutes. The median is zero as 50% of the respondents did not spend any time in the room after using the product. Table S-9: Percentile rankings for time spent in the room after use of Aerosol Rust Removers including those who did not spend any time in the room (N=282 recent users) Minimum 1% 5% 10% 25 Median 75% 90% 95% 99% Maximum Minutes 0.00 0.00 0.00 0.00 0.00 0.00 5.00 60.00 60.00 190.20 600.00 Ninety-five percent of the respondents spent 1 hour or less in the room after using aerosol rust removers. Time spent increased sharply at the 100th percentile to 600 minutes (10 hours). 5-267 ------- Table S-10: Percentile rankings for Aerosol Rust Removers for time spent in the room after last use including only those who spent time in the room (N=282 recent users) Minutes Minimum 1.00 1% 1.00 5% 1.00 10% 2.00 25% 5.00 Median 20.00 75% 60.00 90% 120.00 95% 174.00 99% 592.80 Maximum 600.00 Table S-10 is similar to Table S-9 except it includes only users who did in fact stay in the room after using the product. The mean time spent in the room is 42 minutes. Fifty percent of the respondents spent 20.0 minutes or less in the room. The maximum time spent in the room after using the product is 10.0 hours. 5-268 ------- Q6A: Which brand of aerosol rust remover did you use the last time you used it? Table S-ll: Brand distribution for Aerosol Rust Remover Brand category Frequency Percent 103 34.9 41 13.9 24 8.1 Top brand Second highest brand Third highest brand Don't Knows and Not Ascertained 84 28.5 All other named brands Total 43 14.6 295 100.0 Seventy-two percent (71.5%) of the users of the product specified a brand. The top three brands of aerosol rust remover named were used by 34.9%, 13.9% and 8.1% of respondents, respectively. Q6B: Was the product in aerosol form? Table S-12: Percent of respondents saying the Aerosol Rust Remover used is in aerosol or nonaerosol form (N=286 recent users) Yes, product is aerosol 98.3% No, product is nonaerosol 1.7% Given the product is aerosol rust remover, one would expect the respondents to say the product is in aerosol form and 98.3 of the respondents did say it was. Only 1.7% answered the question specifying the product they used was in nonaerosol form This is obviously respondent error in answering the question. 5-269 ------- Q7: What size of aerosol rust remover did you use the last time you used it? How much of a can or how many cans did you use during the past year? The two questions above were used to derive the variable called ounces per year. Table S-13: Amount of Aerosol Rust Remover used in ounces (N=266 recent users) Mean ounces per year 18.21 Median ounces per year 8.00 Standard deviation 81.37 The mean ounces used per year for aerosol rust removers is 18.21 ounces and the median is 8.0 ounces. Table S-14: Percentile rankings for amount of Aerosol Rust Remover used in ounces (N=266 recent users) Minimum i 2- .L' 5 10 5 edian 75 90 95 99 Maximum Ounces 0.09 0.25 1.00 1.43 2.75 8.00 13.00 32.00 42.60 199.80 1280.00 The range between the minimum and maximum ounces used is quite substantial with the minimum ounces per year at 0.09 and the maximum ounces per year at 1280.0. Ninety-five percent of the respondents used 42.60 ounces or less per year. There is a increase in ounces used at the 99th percentile (199.80 ounces) and the 100th percentile (1280.0 ounces). This shows that a few respondents used a much greater amount of the product. 5-270 ------- Q8: Where did you use aerosol rust remover the last time you used it? Table S-15: Location of last use of the product (N=284 recent users Basement Living room Other inside room Several inside rooms Garage Outside Garage & outside 6.7% 0.7% 10.6% 1.4% 21.8% 53.2% 5.6% Total 100.0% Most of the respondents (53.2%) used the product outside. A total of 21.8% used it in the garage and 0.6 n an other inside room. 5-271 ------- Table S-16: Protective measures undertaken while using Aerosol Rust Removers Yes No 1. Door or window open to the outside 61.1% 38.9 (N=113 recent inside users) 2. Exhaust fan on during use (N=114 recent inside users) 13.2% 86.8 3. Whether inside door to room was open 57.3% 42.7 (N=110 recent inside users) I 4. Whether directions on label were read 68.2% 31.8 (N-280 all recent users) I The majority of the aerosol rust remover users had read the directions on the label (68.2%); had a door or window open to the outside (61.1%); did not have an exhaust fan on during use (86.8%) and had an inside door to the room open (57.3%). Table S-17 is a derived variable ounces per use and it is derived by dividing Question 7 (ounces per year) by Question 3 (# of times used in the last year). Table S-17: Ounces per use of Aerosol Rust Remover (N=265 recent users) Mean # of ounces per use 9.24 Median # of ounces per use 2.17 Standard deviation 78.62 The mean ounces per use of the product is 9.24 and the median is 2.17. Table S-18 which follows presents the percentile rankings for this variable. Twenty-five percent of the respondents use less than an ounce of the product per use whereas 99% of the respondents use 39.46 ounces or less per use. There is a sharp increase at the 100th percentile to 1280.0 ounces per use. 5-272 ------- Table S-18: Percentile rankings of ounces per use of Aerosol Rust Removers (N=265 recent users) Minimum 1% 5% 10% 25% Median 75% 90 95 99 Maximum Ounces/Use 0.03 0.07 0.24 0.45 0.92 2.17 5.50 12.00 14.70 39.46 1280.00 Table S-19: Respondent characteristics of Aerosol Rust Removers users 1. Respondent age Mean = 46.07 years (N=292 recent users) 2. Respondent gender Male =74.1 (N=293 recent users) Female =25.9 3. Number of household members Mean = 3.03 members (N=291 recent users) 4. Number of bedrooms Mean =2.92 bedrooms (N=291 recent users) Table S-19 presents the respondent characteristics of aerosol rust removers. The mean age of these respondents is 46.07 years. The number of male respondents (74.1%) is nearly three times the number of female respondents (25.9%). Except for respondent gender, the other characteristics are similar to the characteristics for the total sample of respondents. The total sample has nearly an equal number of male and female respondents. 5-273 ------- ou WA W CEMEN 5-275 ------- T. Product 20: Outdoor Water Ql: Have you ever used an outdoor water repellent? Table T-l: Numbers and % of respondents evar using Outdoor Water Repellents Numb e r s Percent Yes No Total 428 4489 4917* 8.7 91.3 100.0 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^H^^^^^^^^^^^^V^^^HV^^H^^^^ *3 cases where information was not ascertained Table T-l shows that only 8.7% of the total respondents have "ever" used outdoor water repellents. This is a relatively low percentage when compared to this incidence for other products. 02: When was the last time you used outdoor water repellents? Table T-2: Last time Outdoor Water Repellent was used in months (N=425 users) Mean # of months Median # of months Standard deviation 24.70 12.00 38.56 As Table T-2 shows, the mean number of months since last use of outdoor water repellent is 24.70 months and the median is 12.0 months. The mean is approximately twice the size of the median. This difference is on account of a few extreme responses to this question. 5-277 ------- The percentile rankings for time since last use are shown below: Table T-3: Percentile rankings for Outdoor Water Repellentsmonths since last use (N=425 users) Months Minimum 0.03 1% 0.03 5% 0.23 10% 1.00 25% 4.00 Median 12.00 75% 24.00 90% 60.00 95% 96.00 99% 224.40 Maximum 360.00 Table T-3 shows that the months since the product was last used range from a minimum of 0.03 months to a maximum of 360 months (30 years). Ninety-five per cent of the users last used the product 96.0 months (8 years) or less ago. The number of months since last use increased sharply at the 99th percentile (224.40 months). The number of months reported may be subject to rounding discussed earlier under aspects of the data (i.e 2 5 8 years rather than 5 years 3 months). The data are usable for' indicating the approximate last use. 5-278 ------- Q3: How many times have you used outdoor water repellent the last 12 month Table T-4: Number of uses of Outdoor Water Repellent within the last 12 months (N=241 recent users) Mean # of uses 2.07 Median # of uses 1.00 Standard deviation 3.71 The mean number of times outdoor water repellents were used in the last 12 months is 2.07 times and the median is 1.0 time. Of the 32 products surveyed, this is the least number of times a product has been used in the last year. Of the 241 responses to this question, 60.2% used it once, 24.5% used it twice and 7.1 used it three times in the last year. As shown in Table T-5 which follows, 99% of the respondents used the product 12.0 times or less in the last year. The maximum number of times the product is used is 52.0. Table T-5: Percentile rankings of times used Outdoor Water Repellent within the last 12 months (N=241 recent users) Uses Minimum 1.00 1% 1.00 5% 1.00 10% 1.00 25% 1.00 Median 1.00 75% 2.00 90% 3.00 5.90 99% 12.00 Maximum 52.00 5-279 ------- 04: How much time did you spend using outdoor wat reellent the last time you used i Table T-6: Time spent using the Outdoor Water Repellent last time used (N=239 recent users) Mean # of minutes 104.94 Median # of minutes 60.00 Standard deviation 115.36 The mean and median number of minutes for using outdoor water repellent are 104.94 and 60.0 minutes respectively. Table T-7: Percentile rankings for time spent using the Outdoor Water Repellent last time used (N=239 recent users) Minutes Minimum 0.02 1% 0.05 5% 5.00 10% 15.00 25% 30.00 Median 60.00 75% 120.00 90% 240.00 95% 300.00 99% 480.00 Maximum 960.00 The time spent using the outdoor water repellent ranges from a minimum of 0.02 minutes to 960.0 minutes at the 100th percentile. Fifty percent of the respondents used the product for 60.0 minutes or less. At the 75th percentile through the 99th percentile, time spent is 120 minutes (2 hours) through 480 minutes (16 hours). 5-280 ------- Q5: How much time did you spend in the room immediately after use the last time you used outdoor water repellents? Table T-8: Time spent in the room after last use of Outdoor Water Repellents (N=241 recert users) Mean # minutes in room 8.33 Median # minutes in room 0.00 Standard deviation 43.25 The mean number of minutes spent in the room after last use is 8.33 minutes and the median is 0.0 minutes. The median is zero as 75% of the respondents did not spend any time in the room after use of the product. Table T-9: Percentile rankings for time spent in the room after last use of Outdoor Water Repellents including those who did not spend any time in the room (N=241 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Minutes 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5.00 58.50 309.60 420.00 Ninety percent of the respondents spent 5.0 minutes or less in the room after using outdoor water repellents. Time spent increased sharply at the 99th percentile to approximately 309 minutes (5 hours). 5-281 ------- Table T-10: Percentile rankings for Outdoor Water Repellents for time spent in the room after last use including only those who spent time in the room (N=28 recent users who stayed in room afterwards) Minutes Minimum 1.00 1% 5% 1.45 10% 4.70 25% 10.00 Median 30.00 75% 60.00 90% 252.00 95% 393.00 99% Maximum 420,00 Table T-10 is similar to Table T-9 except it includes only users who did in fact stay in the room after using the product Of the 241 respondents who used the product in the last year only 28 did spend some time in the room after use. Since the number spending time in the room is small it was not possible to calculate the 1st and the 99th percentile which are therefore left blank. The mean time now spent in the room is 71.70 minutes and the median is 30.0. This differs considerably from the mean and median in Table T-8 as respondents who did not spend any time in the room have now been excluded. 5-282 ------- \ Q6A: Which brand of outdoor water repellent did you use the last time you used it? Table T-ll: Brand distribution for Outdoor Water Repellents Brand category Frequency Percent Top brand Second highest brand Third highest brand Don't Knows and Not Ascertained 78 31.6 68 27.5 20 8.1 10 4.0 All other named brands Total 71 28.8 247 100.0 Sixty-eight percent (68.4%) of the users of the product specified a brand. The top three brands of outdoor water repellent named were used by 27.5%, 8.1% and 4.0% of respondents, respectively. Q6B: Was the product in aerosol form? Table T-12: Percent of respondents saying the Outdoor Water Repellent used is in aerosol or nonaerosol form (N=243 recent users) Yes, product is aerosol 11.5% No, product is nonaerosol 88.5% The majority of respondents (88.5%) said the outdoor water repellent they used was in nonaerosol form. 5-283 ------- Q7: What size of outdoor water repellent did you use the last time you used it? How much of a can or how many cans did you use during the past year? The two questions above were used to derive the variable called ounces per year. Table T-13: Amount of Outdoor Water Repellent used in ounces (N=234 recent users) Mean ounces per year 148.71 Median ounces per year 64.00 Standard deviation 280.65 The mean ounces used per year for outdoor water repellents is 148.71 ounces. Only two other products Latex Paint and Oil Paint have more ounces used. Table T-14: Percentile rankings for amount of Outdoor Water Repellent used in ounces (N=234 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Ounces 0.01 0.37 3.63 8.00 16.00 64.00 128.00 448.00 640.00 979.20 3200.00 The range between the minimum and maximum ounces used is quite substantial with the minimum ounces per year at 0.01 and the maximum ounces per year at 3200,0. Ninety-five percent of the respondents used 640.0 ounces or less per year. The 99th percentile is 979.20 ounces. This jumps to 3200.0 at the 100th percentile. 5-284 ------- Q8: Where did you use outdoor water repellent the last time you used it? Table T-15: Location of last use of the product (N=242 recent users) Basement 1.1% Living room 2.1% Other inside room 2.5% Several inside rooms 0.8% Garage Outside 6.2% 83.9% Garage & outside 2.8 Total 100.0% As expected the majority of the respondents, approximately 83.9%, used the product outside. A total of 6.2% of the respondents used the product in the garage. The remaining 7.1% of the respondents used the product inside in a room other than the garage. 5-285 ------- Table T-16: Protective measures undertaken while using Outdoor Water Repellents Yes No 1. Door or window open to the outside 72.7% 27.3% (N=33 recent inside users) 2. Exhaust fan on during use (N=31 recent inside users) 6.5% 93.5 o o 3. Whether inside door to room was open (N=31 recent inside users) 64.5% 35.5 4. Whether directions on label were read 81.1% 18.9% (N=233 all recent users) The majority of the outdoor water repellent users did have a door or window open to the outside (72.7%); did not have an exhaust fan on during use (93.5%); had the inside door to the room opened (64.5%) and had read the directions on the label (81.1%). Table T-17 is a derived variable ounces per use and it is derived by dividing Question 7 (ounces per year) by Question 3 (# of times used in the last year). Table T-17: Ounces per use of Outdoor Water Repellent (N=230 recent users) Mean # of ounces per use 99.53 Median # of ounces per use 32.00 Standard deviation 158.70 The mean ounces per use of the product is 99.53 and the median is 32.0. Table T-18 which follows presents the percentile rankings for this variable. Twenty-five percent of the respondents used 12.80 ounces or less. The ounces used range from a minimum of 0.01 ounces to a maximum of 896.0 ounces at the 100th percentile. The 95th percentile is 512.0 ounces. 5-286 ------- Table T-18: Percentile rankings of ounces per use of Outdoor Water Repellent (N=230 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Ounces/Use 0.01 0.43 2.04 3.86 12.80 32.00 128.00 256.00 512.00 812.16 896.00 Table T-19: Respondent characteristics of Outdoor Water Repellent users 1. Respondent age (N-247 recent users) Mean 43.89 years 2. Respondent gender (N=247 recent users) Male Female 65.2% 34.8% 3. Number of household members (N=246 recent users) Mean 3.13 members 4. Number of bedrooms (N=247 recent users) Mean 3.04 bedrooms Table T-19 presents the respondent characteristics of outdoor water repellents. The mean age of these respondents is 43.89 years The number of male respondents (65.2%) is nearly twice the number of female respondents (34.8%). Except for respondent gender, the other characteristics are similar to the characteristics for the total sample of respondents. The total sample has nearly an equal number of male and female respondents 5-287 ------- ASS w AN SN W 5-289 ------- u. Product 21: Glass Frostin Window Tints and Artificial Snow Ql Have you ever used glass frostings, window tints or artificial snow? Table U-l: Numbers and % of respondents ever using Glass Frostings, Window Tints and Artificial Snow Numbers Percent Yes No Total 511 4406 4917* 10.4 89.6 100.0 *3 cases where information was not ascertained Table U-l shows that only 10.4% of the total respondents have "ever" used glass frostings, window tints and artificial snow. Q2: When was the last time you used a glass frosting, window tint or artificial snow? Table U-2: Last time Glass Frosting, Window Tint and Artificial Snow was used in months (N=506 users) Mean # of months Median # of months Standard deviation 34.20 8.00 55.23 As Table U-2 shows, the mean number of months since last use of the products is 34.20 months. Other than spray shoe polish which was last used 42.10 months ago, this product has the longest period of time since last use. The median number of months is 8.0 and this adjusts for any extreme values given as answers to this question. 5-291 ------- The percentile rankings for time since last use are shown below: Table U-3: Percentile rankings for Glass Frostings, Window Tints and Artificial Snowmonths since last use (N=506 users) Months Minimum 0.03 1% 0.07 5% 3.35 10% 5.00 25% 6.00 Median 8.00 75% 36.00 90% 108.00 95% 151.80 99% 240.00 Maximum 360.00 Table U-3 shows that the minimum time since last use is 0.03 months and the maximum is 360 months (30 years). 5-292 ------- Q3: How many times have you used glass frostings, window tints or artificial snow in the last 12 months? Table U-4: Number of uses of a Glass Frosting, Window Tint and Artificial Snow within the last 12 months (N=279 recent users) Mean # of uses 2.78 Median # of uses 1.00 Standard deviation 21.96 The mean number of times the product was used in the last year is 2.78 times. Of the 279 respondents who used the product in the last year, the majority (90%) used it once, 5.4% used it twice and only 1.1% used it three times. Table U-5 which follows presents the percentile rankings for this variable. Ninety-five percent of the respondents used the product 2 times or less in the last year. The number of times the product is used increased sharply to 365.0 times at 100th percentile. Table U-5: Percentile rankings of times used Glass Frostings, Window Tints and Artificial Snow within the last 12 months (N=279 recent users) Uses Minimum 1.00 1% 1.00 5% 1.00 10% 1.00 25% 1.00 Median 1.00 75% 1.00 90% 2.00 2.00 99% 27.20 Maximum 365.00 5-293 ------- Q4: How much time did you spend using glass frosting, window tint or artificial snow the last time you used it? Table U-6: Time spent using Glass Frostings, Window Tints and Artificial Snow last time used (N=275 recent users) Mean # of minutes 29.45 Median # of minutes 15.00 Standard deviation 48.16 The mean and median number of minutes for using the product is 29.45 and 15.0 minutes respectively. The mean is approximately twice the median. This difference is because of some extreme responses to the question. Table U-7: Percentile rankings for time spent using Glass Frosting, Window Tint and Artificial Snow last time used (N=275 recent users) Minutes Minimum 0.03 1% 0.14 5% 2.00 10% 3.00 25% 5.00 Median 15.00 75% 30.00 90% 60.00 95% 96.00 99% 268.80 Maximum 360.00 The minimum time spent using glass frostings, window tints and artificial snow is 0.03 minutes and the maximum time spent is 360 minutes (6 hours). Ninety percent of the respondents spent one hour or less. Time spent increased substantially at the 99th and 100th percentile to 268.8 minutes (4.48 hours) and 360.0 minutes (6.0 hours). 5-294 ------- Q5: How much time did you spend in the room immediately after use the last time you used glass frostings, window tints or artificial snow? Table U-8: Time spent in the room after last use of Glass Frostings, Window Tints and Artificial Snow (N=269 recent users) Mean # minutes in room 137.87 Median # minutes in room 60.00 Standard deviation 243.21 The mean number of minutes spent in the room after last use is 137.87 minutes which is the longest period of time spent in the room after use when compared to this incidence for any of the other 32 products surveyed. The median is 60.0 minutes. There is a big difference between the mean and median because of some extreme responses. Table U-9 which follows presents the percentile rankings for this variable. It shows that 10% of the respondents did not spend any time in the room after using the product. Ninety-five percent of the respondents spent 8.0 hours or less in the room. The time spent in the room after use increased sharply at the 99th and 100th percentile to 1440 minutes (24.0 hours) and 1800 minutes (30.0 hours). Table U-9: Percentile rankings for time spent in the room after use of Glass Frostings, Window Tints and Artificial Snow including those who did not spend any time in room (N=269 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Minutes 0.00 0.00 0.00 0.00 3.00 60.00 180.00 360.00 480.00 1440.00 1800.00 5-295 ------- Table U-10: Percentile rankings for Glass Frosting, Window Tint and Artificial Snow for time spent in the room after last use including only those who spent time in the room (N=216 recent users who stayed in room afterwards) Minutes Minimum 1.00 1% 1.00 5% 2.00 10% 5.00 25% 22.50 Median 90.00 75% 240.00 90% 480.00 95% 591.50 99% 1440.00 Maximum 1800.00 Table U-10 is similar to Table U-9 except it includes only users who did in fact stay in the room. A total of 80.3% of the respondents who used the product in the last year, did spend some time in the room after use. The mean time spent in the room has increased to 171.70 minutes compared to 137.87 minutes in Table U-8 as respondents spending no time in room after use have been excluded. Ninety-five percent of the respondents spent approximately 10.0 hours or less in the room after using the product. The maximum time spent in the room was 1800 minutes (30 hours). 5-296 ------- Q6A: Which brand of glass frosting, window tint or artificial snow did you use the last time you used it? Table U-ll: Brand distribution for Glass Frostings, Window Tints and Artificial Snows rand category Frequency Percent Top brand Second highest brand Third highest brand Don't Knows and Not Ascertained 187 66.1 25 8.8 16 5.7 8 2.8 All other named brands Total 47 16.6 283 100.0 Thirty-four percent (33.9%) of the respondents specified a brand of glass frosting, window tint or artificial snow that th had used. The top three brands named were used by 8.8%, 5.7% and 2.8% of the respondents, respectively Q6B: Was the product in aerosol form? Table U-12: Percent of respondents saying Glass Frosting, Window Tint and Artificial Snow is in aerosol or nonaerosol form (N=276 recent users) Yes, product is aerosol 90.2% No, product is nonaerosol 9.8 Table U-12 shows that the majority of the respondents (90.2%) used an aerosol form of the product. 5-297 ------- Q7: What size of glass fresting, window tint or artificial snow did you use the last time you used it? How much of a can or how many cans did you use during the past year? The two questions above were used to derive the variable called ounces per year. Table U-13: Amount of Glass Frosting, Window Tint and Artificial Snow used in ounces (N=259 recent users) Mean ounces per year 13.82 Median ounces per year 12.00 Standard deviation 14.91 The mean ounces used per year of glass frosting, window tint and artificial snow is 13.82 ounces and the median is 12.0 ounces. Table U-14: Percentile rankings for amount of Glass Frosting, Window Tint and Artificial Snow used in ounces (N=259 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Ounces 1.00 1.40 2.38 3.25 6.00 12.00 14.00 28.00 33.00 98.40 120.00 The ounces used per year range from a minimum of 1.0 ounce to a maximum of 120.0 ounces at the 100th percentile. Twenty- five percent of the respondents used 6.0 ounces or less of the product whereas 95% of the respondents used 33.0 ounces or less of the product per year. 5-298 ------- Q8: Where did you use glass frosting, window tint or artificial snow the last time you used it? Table U-15: Location of last use of the product (N=275 recent users) Basement 1.0% Living room 58.2% Other inside room 13.5% Several inside rooms 12.7% Garage Outside 1.5% 12.0% Garage & outside 1.1% Total 100.0% As Table U-15 shows, most respondents (58.2%) used glass frosting, window tint or artificial snow in the living room. 13.5% used the product in an "other inside room". Approximately an equal number used the product in "several inside rooms" (12.7%) and outside (12.0%). 5-299 ------- Table U-16: Protective measures undertaken while using Glass Frosting, Window Tint and Artificial Snow Yes No 1. Door or window open to the outside (N=238 recent inside users) 24.4% 75.6 s- 2. Exhaust fan on during use (N=238 recent inside users) 10.5% 89.5% 3. Whether inside door to room was open (N=237 recent inside users) 71.7% 28.3% 4. Whether directions on label were read (N=273 all recent users) 88871.1% 28.9% Most of the respondents had read the directions on the label (71.1%) and had an inside door to the room open (71.7%). Only 24.4% had a door or window open to the outside and 10.5% had an exhaust fan on during use of the product. Table U-17 is a derived variable ounces per use and it is derived by dividing Question (ounces per year) by Question 3 (# of times used in the last year). Table U-17: Ounces per use of Glass Frosting, Window Tint and Artificial Snow Mean # of ounces per use Median # of ounces per use Standard deviation 12.51 9.00 14.01 T ounce d use of a sow is 12.5 U-18 ol d use. Ninet- d th e the ercent of t s 90 ounces ercenti ounces or f the roduct ercentile are 86.9 2 onden tint a Table ounce se 2. er use ounces 9t 0t ectivel 5-300 ------- Table U-18: Percentile rankings of ounces per use of Glass Frosting, Window Tint and Artificial Snow (N=258 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Ounces/Use 0.23 0.49 1.68 3.00 6.00 9.00 13.00 26.00 32.00 86.96 120.00 Table U-19 present pondent characterist frost these is 36 window pondent nd the tint is umbe the res d artificial snow users. Th mean f gl ag f 7 f bed ars; th mb f household memb 4 pondents are female (62.4% c pared t A great the n responde characterist 37.6 Th f gl statist frosting f th d tint umbe pond nd a b f f th 1 * .£? * * T snow users are approximately the same as th haracterist f th ag th total s Pi f respondents except in the cases f pondent a an g pondent gend e is 44.30 y F a th th total sam percentag l f respondent f mal d femal respondents is 47.0% d 53.0% respectively Table U-19: Respondent characteristics of Glass Frosting, Window Tint and Artificial Snow users 1. Respondent age (N=278 recent users) Mean 37.87 years 2. Respondent gender (N=282 recent users) Male Female 37.6% 62.4% 3. Number of household members (N=279 recent users) Mean 3.36 members 4. Number of bedrooms (N=282 recent users) Mean 2.94 bedrooms 5-301 ------- IN 5-303 ------- V. Product 22: Enaj reasers Ql: Have you ever used engine degreasers? Table V-l: Numbers and % of respondents ever using Engine Degreasers Numbers Percent Yes No Total 847 4069 4916* 17.2 82.8 100.0 ^^^^^^^^^^^^^^^^^^imjim^^m-imijijm.^m.^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^m^^-i^m^^^m^.^^^^^m^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^i^^^^^^-ij^^imM^m- _ ^^^^_^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-i_ -. . . . _ . _ - __^_^_- ^_^_ ^^^^^^^^^^.^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-^^^^^^^^^ ^r^^r^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^f^^^fm^ffrr^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^f^^^^^^^^^^^^^^f^^^^^^^f^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^r^^^^^^^^^^^^^^^^m^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^m *4 cases where information was not ascertained Table V-l shows that 17.2% of the total respondents have ever" used engine degreasers. Q2: When was the last time you used engine degreasers? Table V-2: Last time Engine Degreasers were used in months (N=846 users) Mean # of months Median # of months Standard deviation 16.60 6.00 29.80 A f eng Tabl V-2 h deg ws, the is 16.60 mean b f months since last use th Th is bout an period of time since last use products. The median number h f CO th pared to th is 6.0. th 9 5-305 ------- The percentile rankings for time since last use are shown below: Table V-3: Percentile rankings for Engine Degreasers months since last use (N=846 users) Months Minimum 0.03 1% 0.03 5% 0.16 10% 0.23 25% 1.00 Median 6.00 75% 18.00 90% 48.00 95% 72.00 99% 180.00 Maximum 240.00 Table V-3 shows that 10th percentile users and below last used the product less than a month ago. The 75th percentile through the 100th percentile respondents report that they last used the product eighteen months ago through 240 months (20 years) ago and appears to be subject to rounding which was discussed earlier under aspects of the data (i.e. 5, 10, 15 years rather than 5 years 3 months). The data are still usable for indicating the approximate last use. 5-306 ------- Q3: How many times have you used engine degreasers in the last 12 months? Table V-4: Number of uses of the Engine Degreasers within the last 12 months (N=582 recent users) Mean # of uses 4.18 Median # of uses 2.00 Standard deviation 13.72 The mean number of uses of the product in the last twelve months among users of the product, is 4.18 and the median 2.0. A total of 75.1% of these users used engine degreasers three times or less in the last twelve months with 40.5% using it once; 25.8 using it twice; and 8.8% using it three times. Table V-5: Percentile rankings of number of uses of Engine Degreasers within the last 12 months (N=582 recent users) Uses Minimum 1.00 1% 1.00 5% 1.00 10% 1.00 25% 1.00 Median 2.00 75% 3.25 90% 6.70 95% 12.00 99% 41.70 Maximum 300.00 5-307 ------- Q4: How much time did you spend using engine degreasers the last time you used it? Table V-6: Time spent using Engine Degreasers the last time used (N=578 recent users) Mean # of minutes 29.29 Median # of minutes 15.00 Standard deviation 48.14 The mean number of minutes for using engine degreasers is 29.29 and the median is 15.0. Table V-7: Percentile rankings for time spent using the Engine Degreasers last time used (N=578 recent users) Minutes Minimum 0.02 1% 0.95 5% 2.00 10% 5.00 25% 10.00 Median 15.00 75% 30.00 90% 60.00 95% 120.00 99% 180.00 Maximum 900.00 The minimum percentile is .02 minutes and the maximum is 900 minutes (15 hours). 5-308 ------- Q5: How much time did you spend in the room immediately after use the last time you used engine degreasers? Table V-8: Time spent in the room after ase of Engine Degreasers (N=577 recent users) Mean # minutes in room 4.52 Median # minutes in room 0.00 Standard deviation 24.39 The mean number of minutes spent in the room after use is 4.52 minutes as opposed to the median of zero minutes. This is one of the lowest times spent in the room of all the products and probably reflects the large majority of users using the product outside. Table V-9: Percentile rankings for time spent in the room after use including those who did not spend any time in room but used Engine Degreasers (N=577 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Minutes 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15.50 120.00 360.00 Respondents at the 90th percentile or less did not spend any time in the room after using engine degreasers. 5-309 ------- Table V-10: Percentile rankings for Engine Degreasers for time spent in the room after last use including only those who spent time in the room (N=41 recent users who stayed in room) Minutes Minimum 2.00 1% 2.00 5% 5.00 10% 5.00 25% 12.50 Median 60.00 75% 120.00 90% 120.00 95% 180.00 99% Maximum 360.00 Table V-10 is similar to Table V-9 except it includes only users who did in fact stay in the room, therefore, all percentiles have values. 5-310 ------- Q6A: Which brand of engine degreasers did you use the last time you used it? Table V-ll: Brand distribution for Engine Degreasers Brand category Frequency Percent Top brand Second highest brand Third highest brand Don't Knows and Not Ascertained 94 16.0 292 49.7 46 7.8 37 6.3 All other named brands Total 119 20.2 588 100.0 Eighty-four percent (84.0%) of the users of the product specified a brand. The top three brands of engine degreasers were used by 49.7%, 7.8% and 6.3% of the users, respectively. Q6B: Was the product in aerosol form? Table V-12: Percent of respondents saying Engine Degreasers are aerosol (N-577 recent users) Yes, product is aerosol 78.9% No, product is nonaerosol 21.1% Almost seventy-nine percent of the respondents said the engine degreaser was aerosol. 5-311 ------- Q7: What size of engine degreasers did you use the last time you used it? How much of a can or how many cans did you use during the past year? The two questions above were used to derive the variable called ounces per year. Table V-13: Amount of Engine Degreasers used per year in ounces (N=555 recent users) Mean ounces per year 46.95 Median ounces per year 16.00 Standard deviation 135.17 The mean ounces per year is 46.95 and the median is 16.0. Table V-14: Percentile rankings for amount of Engine Degreasers used in ounces (N=555 recent users) Ounces Minimum 0.04 1% 5% 1.56 4.00 10% 6.00 25% 12.00 Median 16.00 75% 36.00 90% 80.00 95% 160.00 99% 480.00 Maximum 2560.00 The range between the minimum and maximum values in Table V-14 is quite substantial with the minimum ounces per year at .04 and the maximum ounces per year at 2560.0. There is quite a difference between percentile points with the 75th percentile at 36.0 ounces per year and the 100th percentile at 2560.0. 5-312 ------- Q8: Where did you use engine degreasers the last time you used them? Table V-15: Location of last use of the product (N=577 recent users) Basement 0.2% Living room 0.0% Other inside room 1.2% Several inside rooms 0.0% Garage Outside 7.8% 89.4% Garage & outside 1.4% Total 100.0% Most people (89.4%) used engine degreasers outside as might be expected given the fact that they are working on their car. Of the remainder, 7.8% used it in their garage; 1.4% used it in both the garage and open air; 1.2% said that they used it in an other inside room; and .2% said they used it in their basement. 5-313 ------- Table V-16: Protective measures undertaken while using Engine Degreasers Yes No 1. Door or window open to the outside 80.0% 20.0% (N=50 recent inside users) 2. Exhaust fan on during use (N=49 recent inside users) 12.2% 87.8% 3. Whether inside door to room was open (N=47 recent inside users) 63.8% 36.2% 4. Whether directions on label were read 77.6% 22.4% (N=563 all recent users) The majority of users of engine degreasers did have a d or window open to the outside (80.0%) especially since most ked on the outside; did not have an exhaust fan on durina use .8%); had the inside door to the room opened (63.8%); and had d the directions on the label (77.6%). Table V-17 is a derived variable ounces per use and it is derived by dividing Question 7 (ounces per year) by Question 3 (# of times used in the last year). Table V-17: Ounces per use of Engine Degreasers (N=554 recent users) Mean # of ounces per use 18.72 Median # of ounces per use 11.60 Standard deviation 59.00 Table V-17 indicates that the mean is 18.72 and the median is 11.60 ounces per use. 5-314 ------- Table V-18: Percentile rankings of ounces per use of Engine Degreasers (N=554 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Ounces/Use 0.02 0.24 1.78 2.91 6.00 11.60 16.00 32.00 48.00 128.00 1024.00 The range of percentile rankings goes from a minimum of .02 to a maximum of 1024.0 ounces per use. Table V-19: Respondent characteristics of Engine Degreasers users 1. Respondent age (N=587 recent users) Mean 38.70 years 2. Respondent gender (N=588 recent users) Male Female 90.5% 9.5% 3. Number of household members (N=587 recent users) Mean 3.20 members 4. Number of bedrooms (N=587 recent users) Mean 2.90 bedrooms f en ble V-19 ne derea resondent characteris mea ars 90.5% of t ondents ar f t house 2.90. hol T t a embe user is 3.20; eneral pro mle th mea ; t numb a hih resp mea den f users is 38.7 d t of bedro percenta users are slihtl 5-315 ------- CA ANE 5-317 ------- W. Product 23: Carburetor Cleaner Ql: Have you ever used carburetor cleaners? Table W-l: Numbers and % of respondents ever using Carburetor Cleaners Numbers Percent Yes No Total 1075 21.9 3842 78.1 4917* 100.0 *3 cases where information was not ascertained Table W-l shows that 21.9% of the total respondents have "ever" used carburetor cleaners. This is an average incidence when compared to the incidence for other products. Q2: When was the last time you used carburetor cleaners? Table W-2: Last time Carburetor Cleaners were used in months (N=1071 users) Mean # of months 13.00 Median # of months 4.00 Standard deviation 27.00 As Table W-2 shows, the mean number of months since last use of carburetor cleaners is 13.0 months. The median number of months is 4.0. 5-319 ------- The percentile rankings for time since last use are shown below: Table W-3: Percentile rankings for Carburetor Cleaners months since last use (N=1071 users) Months Minimum 0.03 1% 0.03 5% 0.10 10% 0.23 25% 1.00 Median 4.00 75% 12.00 90% 36.00 95% 60.00 99% 171.36 Maximum 240.00 Table W-3 shows that 10th percentile users and below last used the product less than a month ago. The 75th percentile through the 100th percentile respondents report that they last used the product 1 year ago through 240 months (20 years) ago. 5-320 ------- Q3: How many times have you used carburetor cleaners in the last 12 months? Table W-4: Number of uses of Carburetor Cleaners within the last 12 months (N=803 recent users) Mean # of uses 3.77 Median # of uses 2.00 Standard deviation 7.10 The mean number of uses of the product in the last twelve months is 3.77 and the median 2.0. Seventy-six percent (76.1%) of these users used carburetor cleaners three times or less in the last twelve months with 36.0% using it once; 27,8% using it twice; and 12.3% using it three times. Table W-5: Percentile rankings of number of uses of Carburetor Cleaners within the last 12 months (N=803 recent users) Uses Minimum 1.00 1% 1.00 5% 1.00 10% 1.00 25% 1.00 Median 2.00 75% 3.00 9 6.00 95% 12.00 99% 47.28 Maximum 100.00 5-321 ------- Q4: How much time did you spend using carburetor cleaners the last time you used it? Table W-6: Time spent using Carburetor Cleaners the last time used (N=800 recent users) Mean # of minutes 13.57 Median # of minutes 7.00 Standard deviation 23.00 The mean number of minutes for using carburetor cleaners is 13.57 and the median is 7.0. Table W-7: Percentile rankings for time spent using the Carburetor Cleaners last time used (N=800 recent users) Minutes Minimum 0.02 1% 0.08 5% 0.33 10% 1.00 25% 3.00 Median 7.00 75% 15.00 90% 30.00 95% 45.00 99% 120.00 Maximum 300.00 The minimum percentile is .02 and the maximum is 300.0 t 5-322 ------- Q5: How much time did you spend in the room immediately after use the last time you used carburetor cleaners? Table W-8: Time spent in the room after use of Carburetor Cleaners (N-798 recent users) Mean # minutes in room 7.51 Median # minutes in room 0.00 Standard deviation 68.50 The mean number of minutes spent in the room after last use is 7.51 minutes as opposed to the median of zero minutes. These averages are influenced by the large number of users that used the product outside and, therefore, did not spend any time in the room. Table W-9: Percentile rankings for time spent in the room after last use including those who did not spend any time in room but used Carburetor Cleaners (N=798 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Minutes 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.10 30.00 120.60 1800.00 Respondents at the 75th percentile or less did not spend any time in the room after using carburetor cleaners, again due to the large number of users who used it outside. 5-323 ------- Table W-10: Percentile rankings for Carburetor Cleaners for time spent in the room after last use including only those who spent time in the room (N=79 recent users who stayed in room afterwards) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Minutes 1.00 1.00 2.00 5.00 10.00 30.00 60.00 120.00 240.00 1800.00 Table W-10 is similar to Table w-9 except it includes only users who did in fact stay in the room, therefore, all percentiles have values. ^r ^^^r 5-324 ------- Q6A: Which brand of carburetor cleaners did you use the last time you used it? Table W-ll: Brand distribution for Carburetor Cleaners Brand category Frequency Percent Top brand Second highest brand Third highest brand Don't Knows and Not Ascertained 225 27.7 158 19.5 151 18.6 64 7.9 All other named brands Total 214 26.3 812 100.0 ^Seventy-two percent (72.3%) of the users of the product specified a brand. The top three brands of carburetor cleaners were used by 19.5%, 18.6%, and 7.9% of the users, respectively. Q6B: Was the product in aerosol form? Table W-12: Percent of respondents saying Carburetor Cleaners are aerosol (N=797 recent users) Yes, product is aerosol 84.9% No, product is nonaerosol 15.1% Respondents said that the product was aerosol in 84.9% of the cases. 5-325 ------- Q7: What size of carburetor cleaners did you use the last time you used it? How much of a can or how many cans did you use during the past year? The two questions above were used to derive the variable called ounces per year. Table W-13: Amount of Carburetor Cleaners used per year in ounces (N=769 recent users) Mean ounces per year 22.00 Median ounces per year 12.00 Standard deviation 50.60 The mean ounces used per year for carburetor cleaners is 22.0 which is about average compared to the other products. The median is 12.0. Table W-14: Percentile rankings for amount of Carburetor Cleaners used in ounces (N=769 recent users) Ounces Minimum 0.10 1% 0.50 5% 1.50 10% 3.00 25% 5.22 Median 12.00 75% 16.00 90% 39.00 95% 75.00 99% 212.00 Maximum 672.00 The minimum ounces per year is 22.0 and maximum value is 672.0 ounces. 5-326 ------- Q8: Where did you use carburetor cleaners the last time you used them? Table W-15: Location of last use of the product (N=797 recent users) Basement Living room Other inside room Several inside rooms Garage Outside Garage & outside 0.1% 0.1% 1.0% 0.0% 10.3% 86.4% 2.0% Total 100.0% Most people (86.4%) used carburetor cleaners outside. Of the remainder, 10.3% used it in their garage; 2.0% used it in both the garage and outside; 1.0% used it in other inside used it in the basement; and 0.1% used it in the living room. rooms; 0.1* 5-327 ------- Table W-16: Protective measures undertaken while using Carburetor Cleaners Yes No 1. Door or window open to the outside 73.9% 26.1% (N=88 recent inside users) 2. Exhaust fan on during use (N=87 recent inside users) 6.9% 93.1 3. Whether inside door to room was open (N=84 recent inside users) 51.2% 48.8 4. Whether directions on label were read 51.2% 48.8% (N=780 all recent users) The majority of users of carburetor cleaners did have a door or window open to the outside (73.9%); did not have an exhaust fan on during use (93.1%); had the inside door to the room opened (51.2%); and had read the directions on the label (51.2%). Table W-17 is a derived variable ounces per use and it is derived by dividing Question 7 (ounces per year) by Question 3 (# of times used in the last year). Table W-17: Ounces per use of Carburetor Cleaners (N=766 recent users) Mean # of ounces per use 7.59 Median # of ounces per use 5.00 Standard deviation 9.40 Table W-17 indicates that the mean is 7.59 ounces per use and the median is 5.0. 5-328 ------- Table W-18: Percentile rankings of ounces per use of Carburetor Cleaners (N=766 recent users) Minimum 5% 10% 25% Median 75% 90% 99 Max Ounces/Use 0.03 0.15 0.70 1.25 2.41 5.00 9.75 16.00 19.30 48.66 128.00 Table W-19: Respondent characteristics of Carburetor Cleaner users 1. Respondent age Mean = 39.70 years (N=811 recent users) 2. Respondent gender Male = 87.5% (N=811 recent users) Female =12.5 3. Number of household members (N=811 recent users) Mean = 3.30 members 4. Number of bedrooms Mean = 2.90 bedrooms (N=810 recent users) Table W-19 presents the respondent characteristics of users of carburetor cleaners. The mean age of these respondents is 39.70 years; 87.5% of the respondents are male; the mean number of household members is 3.30; and the mean number of bedrooms is 2.90. The users of carburetor cleaners are more often male and slightly younger than the sample at large. 5-329 ------- A CA 5-331 ------- X. Product Paint for Cars Ql: Have you ever used an auto spray paint? Table X-l: Numbers and % of respondents ever using Auto Spray Paints Numbers Percent Yes No Total 595 4321 4916* 12.1 87.9 100.0 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^((^^^^^^^^^^^^^^^^l^^^^^^^Hi^^^^^^^^^^^^HIMMH^H^H^^^^^^^^^^^^^^Ml^^^^^^^^^^^HIp *4 cases where information was not ascertained Table X-l shows that 12.1% of the total respondents have "ever" used Auto Spray Paints. Q2: When was the last time you used Auto Spray Paints? Table X-2: Last time Auto Spray Paint was used in months (N=596 users) Mean # of months Median # of months Standard deviation 20.90 8.00 33.41 of a The diff ques As Table X-2 s uto spray paint mean is more th hows, the mean f m ths since last use on 20.90 mo twice the nt of a f ths size d th f th d d 8 h th t t h d djust f th t P t th resp 5-333 ------- The percentile rankings for time since last use are shown below: Table X-3: Percentile rankings for Auto Spray Paints the months ago last used (N=596 users) Months Minimum 0.03 1% 0.03 5% 0.16 10% 0.23 25% 2.00 Median 8.00 75% 24.00 90% 60.00 95% 96.00 99% 180.00 Maximum 240.00 Table X-3 shows that the months since the product was last used range from a minimum of 0.03 months to a maximum of 240.0 months. Twenty-five percent of the respondents used the product 2 months or less ago and 95% of the users used the product last 8 years or less ago. The number of months reported may be subject to rounding discussed earlier under aspects of the data (i.e. 2, 8, 20 years rather than 8 years 3 months). The data is usable for indicating the approximate last use. 5-334 ------- Q3: How many times have you used auto spray paints in the last 12 months? Table X-4: Number of uses of the Auto Spray Paint within the last 12 months (N=367 recent users) Mean # of uses 4.50 Median # of times 2.00 Standard deviation 9.71 The mean number of uses of Auto Spray Paints in the last 12 months is 4.50 times and the median is 2.0 times. Of the 367 respondents who used the product in the last year, 37.9% used it once, 22.6% used it twice and 11.4% used it three times. As shown in Table X-5 which follows, 95% of the respondents used the product 15 times or less in the last year. The maximum number of uses is 100.0. Table X-5: Percentile rankings of number of uses of Auto Spray Paints within the last 12 months (N=367 recent users) Uses Minimum 1.00 1% 1.00 5% 1.00 10% 1.00 25% 1.00 Median 2.00 75% 4.00 90% 10.00 95% 15.00 99% 60.00 Maximum 100.00 ^^^^ 5-335 ------- Q4: How much time did you spend using Auto Spray Paint the last time you used it? Table X-6: Time spent using the Auto Spray Paint last time used (N==362 recent users) Mean # of minutes 42.77 Median # of minutes 20.00 Standard deviation 71.39 The mean and median number of minutes for using auto spray paints are 42.77 and 20.0 minutes respectively. Table X-7: Percentile rankings for time spent using the Auto Spray Paint last time used (N=362 recent users) Minutes Minimum 0.03 1% 0.19 5% 1.00 10% 3.00 25% 10.00 Median 20.00 75% 60.00 90% 120.00 95% 145.50 99% 360.00 Maximum 900.00 The time spent using the auto spray paint ranges from a minimum of 0.03 minutes to 900.0 minutes (15 hours) at the 100th percentile. Seventy-five percent of the respondents spent one hour or less using the product. A few respondents spent a much greater time using the product. This is reflected in the 99th and 100th percentile which are 360 minutes (6 hours) and 900.0 (15 hours). 5-336 ------- Q5: How much time did you spend in the room immediately after use the last time you used auto spray paints? Table X-8: Time spent in the room after use of Auto Spray Paints (N=364 recent users) Mean # minutes in room 10.71 Median # minutes in room 0.00 Standard deviation 45.53 The mean number of minutes spent in the room after last use is 10.71 minutes and the median is 0.0 minutes. The median is zero as 75% of the respondents did not spend any time in the room after using the product. Table X-9: Percentile rankings for time spent in the room after last use of Auto Spray Paints including those who did not spend any time in the room (N-364 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Minutes 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17.50 60.00 282.00 480.00 Seventy-five percent of the respondents did not spend any time in the room after using the product. This is because most respondents used the product outside as it's a spray paint for cars. Ninety-five percent of the respondents spent 1 hour or less in the room after using auto spray paints. Time spent increased sharply at the 100th percentile to 480 minutes (8 hours). 5-337 ------- Table X-10: Percentile rankings for Auto Spray Paints for time spent in the room after last use including only those who spent time in the room (N=57 recent users who stayed in room afterwards) Minutes Minimum 1.00 1% 5% 1.90 10% 4.60 25% 7.50 Median 35.00 75% 60.00 90% 192.00 95% 360.00 99% Maximum 480.00 Table X-10 is similar to Table X-9 except it includes only users who did in fact stay in the room after using the product. The mean time spent in the room is 68.40 minutes. Fifty percent of the respondents spent 35.0 minutes or less in the room. The maximum time spent in the room after using the product is 480 minutes (8 hours). Only 57 respondents stayed in the room after using auto spray paints. Since this number is less than a 100, the 1st and 99th percentiles have not been determined. 5-338 ------- Q6A: Which brand of auto spray paint did you use the last time you used it? Table X-ll: Brand distribution for Auto Spray Paints Brand category Frequency Percent Top brand Second highest brand Third highest brand Don't Knows and Not Ascertained 168 45.2 34 9.1 33 8.9 12 3.2 All other named brands Total 125 33.6 372 100.0 Fifty-five percent (54.8%) of the users of the product specified a brand. The top three brands of auto spray paint named were used by 9.1%, 8.9% and 3.2% of respondents, respectively. Q6B: Was the product in aerosol form? Table X-12: Percent of respondents saying the Auto Spray Paint used is in aerosol or nonaerosol form (N=364 recent users) Yes, product is aerosol 99.5% No, product is nonaerosol 0.5% Given the product is auto spray paint, one would expect the respondents to say the product is in aerosol form and 99.5% of the respondents did say it was. Only 0.5% answered the question specifying the product they used was in nonaerosol form. This could be attributed to respondent error in answering the question. 5-339 ------- Q7: What size of auto spray paint did you use the last time you used it? How much of a can or how many cans did you use during the past year? The two questions above were used to derive the variable called ounces per year. Table X-13: Amount of Auto Spray Paint used in ounces (N-347 recent users) Mean ounces per year 44.95 Median ounces per year 16.00 Standard deviation 89.78 The mean ounces used per year for auto spray paints is 44.95 ounces and the median is 16.0 ounces. The mean is over two times the size of the median showing that there are some extreme responses to this question. Table X-14: Percentile rankings for amount of Auto Spray Paints used in ounces (N=347 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95 99% Maximum Ounces 0.04 0.14 1.50 3.00 6.12 16.00 48.00 100.80 156.00 557.76 900.00 The minimum amount of auto spray paint used is 0.04 ounces and the maximum is 900.0 ounces. Ninety-five percent of the respondents used 156.0 ounces or less per year. There is an increase in ounces used at the 99th (557.76 ounces) to the 100th percentile (900.0 ounces). 5-340 ------- Q8: Where did you use auto spray paint the last time you used it? Table X-15: Location of last use of the product (N=363 recent users) Basement 0.6% Living Room 0.0% Other inside room 1.1% Several inside rooms 0.0% Garage Outside 18.7% 77.7% Garage & outside 1.9% Total 100.0% Most of the respondents 77.7% used the product outside. A total of 18.7% used it in the garage. The remaining 1.7% used it either in the basement or an other inside room. 5-341 ------- Table X-16: Protective measures undertaken while using Auto Spray Paints Yes No 1. Door or window open to the outside 70.4% 29.6 (N=71 recent inside users) °& 2. Exhaust fan on during use (N=71 recent inside users) 19.7% 80.3% 3. Whether inside door to room was open (N=68 recent inside users) 47.1% 52.9 4. Whether directions on label were read 72.0% 28.0 (N=357 all recent users o o The majority of the respondents had read the directions on the label (72.0%); had a door or window open to the outside (70.4%) and did not have an exhaust fan on (80.3%). A total of 47.1% had the inside door to the room open while using the product. Table X-17 is a derived variable ounces per use and it is derived by dividing Question 7 (ounces per year) by Question 3 (# of times used in the last year). Table X-17: Ounces per use of Auto Spray Paint (N=347 recent users) Mean # of ounces per use 13.76 Median # of ounces per use 8.00 Standard deviation 19,31 The mean ounces per use of the product is 13.76 ounces and the median is 8.0. Table X-18 which follows presents the percentile rankings for this variable. Ninety-five percent of the respondents used 48.0 ounces or less of the product per use. There is a sharp increase at the 100th percentile to 192.0 ounces per use. 5-342 ------- Table X-18: Percentile rankings of ounces per use of Auto Spray Paints (N=3347 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Ounces/Use 0.04 0.08 0.77 1.50 3.90 8.00 16.00 32.00 48.00 103.23 192.00 Table X-19 presents the respondent characteristics of auto spray paints. The mean age of these respondents is 39.48 years. The majority of the respondents are male (88.4%) compared to the female respondents (11.6%). Except for respondent age and gender, the other characteristics are approximately similar to the characteristics for the total sample of respondents. The total sample has a respondent age of 44.30 years and nearly an equal number of male and female respondents. Table X-19: Respondent characteristics of Auto Spray Paint users 1. Respondent age (N=371 recent users) Mean 39.48 years 2. Respondent gender (N=370 recent users) Male Female 88.4% 11.6 3. Number of household members (N=371 recent users) Mean 3.20 members 4. Number of bedrooms (N=371 recent users) Mean 3.00 bedrooms 5-343 ------- AU A 5-345 ------- Y. Product 25: Auto Primers Ql: Have you ever used auto spray primers Table Y-l: Numbers and % of respondents ever using Auto Spray Primers Numbers Percent Yes No Total 452 4465 4917* 9.2 90.8 100.0 ^^^^^^^^^^^^^^^^-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ *3 cases where information was not ascertained Table Y-l shows that only 9.2% of the total respondents have "ever11 used auto spray primers. 02: When was the last time you used auto spray primers Table Y-2: Last time Auto Spray Primer was used in months (N=453 users) Mean # of months Median # of months Standard deviation 24.00 11.00 40.91 ago On the average auto spray primers were last used 24.0 months The median number of months is a little less than half the mean at 11.0 months and adjusts for any extreme values given as answers to this question. 5-347 ------- The percentile rankings for time since last use are sh bel Table Y-3: Percentile rankings for Auto Spray Primers months since last use (N=453 users) Months Minimum 0.03 1% 0.03 5% 0.16 10% 0.40 25% 3.00 Median 11.00 75% 24.00 90% 60.00 95% 120.00 99% 185.52 Maximum 420.00 Table Y-3 shows that time since the product was last used ranges from a minimum of 0.03 months to a maximum of 420 months (35 years) at the 100th percentile. Twenty-five percent of the respondents last used the product 3 months or less ago whereas 95% of the respondents last used the product 120 months (10 years) or less ago. The months since last use may be subject to rounding discussed earlier under aspects of the data (i.e. 2, 10, 35 years rather than 10 years 3 months). The data are usable for indicating the approximate last use. 5-348 ------- Q3: How many times have you used auto spray primers in the last 12 months? Table Y-4: Number of uses of Auto Spray Primers within the last 12 months (N=260 recent users) Mean # of uses 6.42 Median # of uses 2.00 Standard deviation 33.89 The mean number of times auto spray primers were used in the last year is 6.42 uses and the median is 2.0 uses. Of the 260 respondents who used the product in the last year, 44.6% used it once, 21.9% used it twice and 8.5% used it three times. Table Y-5 which follows presents the percentile rankings for this variable. The times the product was used range from a minimum of 1 time to a maximum of 500.0 times. Ninety-five percent of the respondents used the product 15 times or less in the last year. The times the product was used in the last year increased substantially at the 99th and 100th percentile to 139.0 and 500.0 times respectively. Table Y-5: Percentile rankings of number of uses of Auto Spray Primers within the last 12 months (N=260 recent users) Times Minimum 1.00 1% 1.00 5% 1.00 10% 1.00 25% 1.00 Median 2.00 75% 3.75 90% 10.00 95% 15.00 99% 139.00 Maximum 500.00 5-349 ------- Q4: How much time did you spend using the auto spray primer the last time you used it? Table Y-6: Time spent using the Auto Spray Primer last time used (N=258 recent users) Mean # of minutes 51.45 Median # of minutes 27.50 Standard deviation 86.11 The mean and median number of minutes for using auto spray primers are 51.45 and 27.50 minutes respectively. Table Y-7: Percentile rankings for time spent using the Auto Spray Primer last time used (N=258 recent users) Minutes Minimum 0.05 1% 0.22 5% 2.00 10% 5.00 25% 10.00 Median 27.50 75% 60.00 90% 120.00 95% 180.00 99% 529.20 Maximum 600.00 The time spent using auto spray primers ranges from 0.05 minutes to 10.0 hours at the 100th percentile. Twenty-five percent of the respondents used the product for 10.0 minutes or less; 50% used it for 27.50 minutes or less and 95% used it for 3 hours or less. A few respondents used the product for a much longer period of time. This is reflected in the sharp increase at the 99th percentile where the product is used for approximately 9 hours and the 100th percentile where it is used for 600 minutes (10 hours). 5-350 ------- Q5: How much time did you spend in the room immediately after use the last time you used auto spray primers? Table Y-8: Time spent in the room after use of Auto Spray Primers (N=258 recent users) Mean # minutes in room 11.37 Median # minutes in room 0.00 Standard deviation 45.08 The mean number of minutes spent in the room after last use is 11.37 minutes. The median is 0,0 as 75% of the respondents did not spend any time in the room after using the product. Table Y-9: Percentile rankings for time spent in the room after last use of Auto Spray Primers including those who did not spend any time in the room (N=258 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Minutes 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20.00 77.25 360.00 360.00 Respondents at the 90th percentile through the 100th percentile did spend some time in the room after using the product. The maximum time spent in the room after using the product is 360 minutes (6 hours). 5-351 ------- Table Y-10: Percentile rankings for Auto Spray Primers for time spent in the room after use including only those who spent time in the room (N=44 recent users who stayed in the room afterwards) Minutes Minimum 1*00 1% 5% 1,00 10% 2.50 25% 5.00 Median 30.00 75% 120.00 90% 120.00 95% 360.00 99% Maximum 360.00 Table Y-10 is similar to Table Y-9 except it includes only users who did in fact stay in the room. For the 44 respondents who stayed in the room after using the product, the mean time spent in the room after use is 66.70 minutes and the median is 30.0 minutes. Time spent in the room after using the product cannot be ascertained at the 1st and 99th percentile as the number of respondents in the room is less than a 100. 5-352 ------- Q6A: Which brand of auto spray primer did you use the last time you used it? Table Y-ll: Brand distribution for Auto Spray Primers Brand category Frequency Percent Top brand Second highest brand Third highest brand Don't Knows and Not Ascertained 111 42.0 29 ll.o 21 8.0 12 4.5 All other named brands Total 91 34.5 264 100.0 Fifty-eight percent of the users of the product specified a brand. The top three brands of auto spray primer named were used by 11.0%, 8.0% and 4.5% of the respondents, respectively. Q6B: Was the product in aerosol form? Table Y-12: Percent of respondents saying Auto Spray Primer is in aerosol or nonaerosol form (N=258 recent users) Yes, product is aerosol 98.8 No, product is nonaerosol 1.2% The majority of the respondents (98.8%) said the product was in aerosol form. Given the primer is in spray form none of the respondents should have said the product is nonaerosol. The 1.2 in Table Y-12 can be attributed to respondent error. 5-353 ------- Q7: What size of auto spray primer did you use the last time you used it? How much of a can or how many cans did you use during the past year? The two questions above were used to derive the variable called ounces per year. Table Y-13: Amount of Auto Spray Primer used in ounces (N=247 recent users) Mean ounces per year 70.37 Median ounces per year 16.00 Standard deviation 274.56 The average amount of auto spray primer used per year is 70.37 ounces and the median is 16.0 ounces. There is a large difference between the mean and median as a few respondents used a much greater quantity of the product. Table Y-14: Percentile rankings for amount of Auto Spray Primers used in ounces (N=247 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Ounces 0.12 0.77 3.00 4.00 9.00 16.00 48.00 128.00 222.00 1167.36 3840.00 The minimum amount of product used is 0.12 ounces and the maximum is 3840.0 ounces. Ninety-five percent of the respondents used 222.0 ounces or less of the product in the last year. The amount used increased sharply at the 99th and 100th percentile to 1167.36 and 3840.0 ounces respectively showing a few respondents used a much greater quantity of the product. 5-354 ------- Q8: Where did you use auto spray primers the last time you used it? Table Y-15: Location of last use of the product (N-256 recent users) Basement Living room Other inside room Several inside rooms Garage Outside Garage & outside Total 0.7% 0.8% 20.7% 75.8% 2.0% 100.0% The majority of the respondents (75.8%) used the product outside. A total of 20.7% of the respondents used the product in the garage. 5-355 ------- Table Y-16: Protective measures undertaken while using Auto Spray Primers Yes No 1. Door or window open to the outside 71.4% 28.6 (N=56 recent inside users) I 2. Exhaust fan on during use (N=56 recent inside users) 30.4% 69.6 3. Whether inside door to room was open 46.3% 53.7 (N=54 recent inside users) I 4. Whether directions on label were read 69.0% 31.0 (N=252 all recent users) Sixty-nine percent of the respondents had read the label. The majority of the respondents had a door or window open to th outside (71.4%) and had an exhaust fan off (69.6%) while using the product. A total of 46.3% had an inside door to the room open. Table Y-17 is a derived variable ounces per use and it is derived by dividing Question 7 (ounces per year) by Question 3 (# of times used in the last year). Table Y-17: Ounces per use of Auto Spray Primers (N=247 recent users) Mean # of ounces per use 20.54 Median # of ounces per use 12.00 Standard deviation 43.72 The average amount of auto spray primer used per use of the product is 20.54 ounces and the median is 12.0 ounces. Table Y-18 which follows presents the percentile rankings for this variable. The ounces used per use of the product range from a minimum of 0.04 ounces to a maximum of 512.0 ounces at the 100th percentile. Ninety-five percent of the respondents used 64.0 ounces or less of the product per use. 5-356 ------- Table Y-18: Percentile rankings of ounces per use of Auto Spray Primers (N=247 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Ounces/Use 0.04 0.28 1.50 2.00 4.02 12.00 18.00 38.72 64.00 241.92 512.00 Table Y-19 presents the respondent characteristics of auto spray primer users. The mean age of these respondents is 37.76 years. The majority of the respondents are male (87.8%). The statistics for the respondent characteristics of auto spra primer users is approximately the same as those for the total sample of respondents with the exception of respondent age and gender. The average age for the total sample of respondents is 44.30 years and the number of male and female respondents is 47.0% and 53.0% respectively. Table Y-19: Respondent characteristics of Auto Spray Primer users 1. Respondent age Mean = 37.76 years (N=263 recent users) 2. Respondent gender Male = 87.8% Female =12.2 (N=262 recent users) 3. Number of household members Mean = 3.45 members (N=263 recent users) 4. Number of bedrooms Mean = 3.00 bedrooms (N=263 recent users) 5-357 ------- CANT 5-359 ------- z. Product 26: Lubricants for Cars Ql: Have you ever used spray lubricants? Table z-1: Numbers and % of respondents ever using Spray Lubricants Numbers Percent Yes No Total 885 4032 4917* 18 82 100 *3 cases where information was not ascertained Table Z-1 shows that 18% of the total respondents have "ever" used spray lubricants. Q2: When was the last time you used spray lubricants? Table Z-2: Last time Spray Lubricant was used in months (N=880 users) Mean # of months Median # of months Standard deviation 6.30 2.00 17.31 As Table Z-2 shows, the mean number of months since last use of spray lubricant is 6.30 months and the median is 2.0 months The mean is approximately three times the size of the median. This difference is the result of few extreme responses to this question. 5-361 ------- below: The percentile rankings for time since last use are shown Table Z-3: Percentile rankings for Spray Lubricantsmonths since last use (N=880 users) Months Minimum 0.03 1% 0.03 5% 0.07 10% 0.13 25% 0.46 Median 2.00 75% 6.00 90% 12.00 95% 24.00 99% 60.00 Maximum 300.00 Table Z-3 shows that the months since the product was last used range from a minimum of 0.03 months to a maximum of 300 months. Twenty-five percent of the respondents used the product less than one month ago and 95% of the users used the product last 24.0 months or less ago. The number of months reported may be subject to rounding discussed earlier under aspects of the data (i.e. 2, 5, 25 years rather than 5 years 3 months). The data are usable for indicating the approximate last use. 5-362 ------- Q3: How many times have you used spray lubricants in the last 12 months? Table Z-4: Number of uses of Spray Lubricant within the last 12 months (N=771 recent users) Mean # of uses 10.31 Median # of uses 3.00 Standard deviation 30.71 The mean number of uses of spray lubricants that were used in the last 12 months is 10.31 times and the median is 3.0 times Of the 771 respondents who used the product in the last year, 18.4% used it once, 20.8% used it twice and 11.8% used it three times. As shown in Table Z-5 which follows, 95% of the respondents used the product 40 times or less in the last year. The maximum number of times the product is used is 365.0. Table Z-5: Percentile rankings of times used Spray Lubricants within the last 12 months (N=771 recent users) Uses Minimum 1.00 1% 1.00 5% 1.00 10% 1.00 25% 2.00 Median 3.00 75% 6.00 90% 20.00 95% 40.00 99% 105.60 Maximum 365.00 5-363 ------- Q4: How much time did you spend using spray lubricants the last time you used it? Table Z-6: Time spent using the Spray Lubricant last time used (N=762 recent users) Mean # of minutes 9.90 Median # of miniates 5.00 Standard deviation 35.62 The mean and median number of minutes for using spray lubricants are 9.90 and 5.0 minutes respectively. Table Z-7: Percentile rankings for time spent using the Spray Lubricant last time used (N=762 recent users) Minutes Minimum 0.02 1% 0.03 5% 0.08 10% 0.17 25% 1.00 Median 5.00 75% 10.00 90% 15.00 95% 30.00 99% 120.00 Maximum 720.00 The time spent using the spray lubricant ranges from a minimum of 0.02 minutes to 720 minutes (12 hours) at the 100th percentile. Ninety-five percent of the respondents spent a half hour or less using the product. A few respondents spent a much greater time using the product. This is reflected in the 99th and 100th percentile which are 120 minutes (2 hours) and 720.0 minutes (12 hours). 5-364 ------- Q5: How much time did you spend in the room immediately after use the last time you used spray lubricants? Table Z-8: Time spent in the room after use of Spray Lubricants (N=765 recent users) Mean # minutes in room 4.54 Median # minutes in room 0.00 Standard deviation 30.67 The mean number of minutes spent in the room after last use is 4.54 minutes and the median is 0.0 minutes. The median is zero as 75% of the respondents did not spend any time in the room after using the product. Table Z-9: Percentile rankings for time spent in the room after last use of Spray Lubricants including those who did not spend any time in the room (N=765 recent users) Minutes Minimum 0.00 1% 0.00 5% 0.00 10% 0.00 25% 0.00 Median 0.00 75% 0.00 90% 2.00 95% 15.00 99% 70.20 Maximum 420.00 Seventy-five percent of the respondents did not spend any time in the room after using the product. This is because most respondents used the product outside as it's a lubricant for cars. Ninety-five percent of the respondents spent 15.0 minutes or less in the room after using spray lubricants. Time spent increased at the 100th percentile to 420.0 minutes. 5-365 ------- Table Z-10: Percentile rankings for Spray Lubricants for time spent in the room after last use including only those who spent time in the room recent users who stayed in the room afterwards) Minutes Minimum 1.00 1% 5% 1.00 10% 2.00 25% 5.00 Median 10.00 75% 30.00 90% 60.00 95% 300.00 99% Maximum 420.00 Table Z-10 is similar to Table Z-9 except it includes only users who did in fact stay in the room after using the product. The mean time spent in the room is 41.40 minutes. Fifty percent of the respondents spent 10.0 minutes or less in the room. The maximum time spent in the room after using the product is 7.0 hours. Only 84 respondents stayed in the room after using spray lubricants. Since this number is less than a 100, the 1st and 99th percentiles have not been determined. 5-366 ------- Q6A: Which brand of spray lubricant did you use the last time you used it? Table Z-ll: Brand distribution for Spray Lubricants Brand category Frequency Percent Top brand Second highest brand Third highest brand 369 47.2 30 3.8 15 1.9 Don't Knows and Not Ascertained 203 26.0 All other named brands Total 164 21.1 781 100.0 Seventy-four percent (74%) of the users of the product specified a brand. The top three brands of spray lubricant named were used by 47.2%, 3.8% and 1.9% of respondents, respectively. Q6B: Was the product in aerosol form? Table Z-12: Percent of respondents saying the Spray Lubricant used is in aerosol or nonaerosol form (N=768 recent users) Yes, product is aerosol 99.2% No, product is nonaerosol 0.8% Given the product is spray lubricant, one would expect the respondents to say the product is in aerosol form and 99.2% of the respondents did say it was. Only 0.8% answered the question specifying the product they used was in nonaerosol form. This could be attributed to respondent error in answering the question. 5-367 ------- Q7: What size of spray lubricant did you use the last time you used it? How much of a can or how many cans did you use during the past year? The two questions above were used to derive the variable called ounces per year. Table Z-13: Amount of Spray Lubricant used in ounces (N=705 recent users) Mean ounces per year 18.63 Median ounces per year 6.00 Standard deviation 54.74 The mean ounces used per year for spray lubricants is 18.63 ounces and the median is 6.0 ounces. The mean is over three times the size of the median showing that there are some extreme responses to this question. Table Z-14: Percentile rankings for amount of Spray Lubricant used in ounces (N=705 recent users) Ounces Minimum 0. 08 0.40 0.96 1.00 2.75 1% 5% 10% 25% Median 6.00 75% 15.50 90% 36.00 95% 64.00 99% 240.00 Maximum 864. 00 The minimum amount of spray lubricant used is 0.08 ounces and the maximum is 864.0 ounces. Ninety-five percent of the respondents used 64.0 ounces or less per year. There is then an increase in ounces used at the 99th (240.0 ounces) and the 100th percentile (864.0 ounces). 5-368 ------- Q8: Where did you use spray lubricants the last time you used it? Table Z-15: Location of where product used last time (N=765 recent users) Basement Living room Other inside room Several inside rooms Garage Outside Garage & outside 0.4% 0.0% 1.2% 0.0% 12.4% 83.5% 2.5% Total 100.0% Most of the respondents (83.5%) used the product outside. total of 12.4% used it in the garage A The remaining 1.6% used it either in the basement or other inside room. 5 69 ------- Table Z-16: Protective measures undertaken while using Spray Lubricants Yes No 1. Door or window open to the outside 66.3% 33.7% (N=104 recent inside users) 2. Exhaust fan on during use (N=103 recent inside users) 6.8% 93.2 o o 3. Whether inside door to room was open (N=100 recent inside users) 53.0% 47.0 4. Whether directions on label were read 55.1% 44.9 (N=752 all recent users) o o A little more than half the respondents had read the directions on the label (55.1%) and had an inside door to the room open (53.0%). The majority of the respondents had an exhaust fan off (93.2%). A total of 66.3% had a door or window open to the outside. Table Z-17 is a derived variable ounces per use and it is derived by dividing Question 7 (ounces per year) by Question 3 (# of times used in the last year). Table Z-17: Ounces per use of Spray Lubricants (N=704 recent users) Mean # of ounces per use 3.39 Median # of ounces per use 1.58 Standard deviation 7.60 The mean ounces per use of the product is only 3.39 ounces and the median is 1.58. Table Z-18 which follows presents the percentile rankings for this variable. Twenty-five percent of the respondents use less than an ounce of the product per use whereas 95% of the respondents use 12.0 ounces or less per use. There is a sharp increase at the 100th percentile to 128.0 ounces per use. 5-370 ------- Table Z-18: Percentile rankings of ounces per use of Spray Lubricants (N=704 recent users) Ounces/Use Minimum 0.04 1% 0.08 5% 0.22 10% 0.33 25% 0.75 Median 1.58 75% 3.20 90% 8.00 95% 12.00 99% 27.43 Maximum 128.00 Table Z-19 presents the respondent characteristics of spra lubricants. The mean age of these respondents is 40.26 years. he majority of the respondents are male (85.2%) compared to t female resondents 14.8%. Excet for resondent ender, the other characterstcs are approxmately smlar to the haracteristics for the total sample of respondents. The total sample has nearly an equal number of male and female responden Table Z-19: Respondent characteristics of Spray Lubricant users 1. Respondent age Mean = 40.26 years (N=779 recent users) 2. Respondent gender Male = 85.2 (N=778 recent users) Female = 14.8 I 3. Number of household members Mean = 3.20 members (N=778 recent users) 4. Number of bedrooms Mean = 2.94 bedrooms (N=779 recent users) 5-371 ------- ANSMISS EANE 5-373 ------- AA. Product 27: Transmission Cleaner Ql: Have you ever used transmission cleaner? Table AA-1: Numbers and % of Respondents Ever Using Transmission Cleaner Numbers Percent Yes No 107 2.1 4809 97.9 Total 4916* 100.0 *4 cases where information was not ascertained Table AA-1 shows that 2.1% of the total respondents have "ever" used transmission cleaner. This is the lowest usage rate of any product evaluated. Q2: When was the last time you used transmission cleaner? Table AA-2: Last time Transmission Cleaner was used in months (N=103 users) Mean # of months 16.70 Median # of months 7.00 Standard deviation 30.63 As Table AA-2 shows, the mean number of months since last use of transmission cleaner is 16.70 months. Compared to other products studied, this is a moderate amount of time since last use. 5-375 ------- The percentile rankings for time since last use are shown below: Table AA-3: Percentile rankings for Transmission Cleaners months since last use (N=103 users) Months Minimum 0.03 1% 0.03 5% 0.23 10% 0.46 25% 1.00 Median 7.00 75% 24.00 90% 48.00 95% 60.00 99% 236.16 Maximum 240.00 Table AA-3 shows that respondents in the lowest 25th percentile grouping used the product within the month preceding their answering the question. The 75th percentile through the 100th percentile respondents report that they last used the product between 24 months (2 years) and 240 months (20 years ago) . 5-376 ------- Q3: How many times have you used transmission cleaner in the last 12 months? Table AA-4: Number of uses of Transmission Cleaner in the last 12 months (N=69 recent users) Mean # of uses 2.28 Median # of uses 1.00 Standard deviation 3.55 Among those respondents who had used the product within the past year, the mean number of times it had been used was 2.28, and the median number of uses was 1.0. Almost two-thirds of the respondents who had used the product within the past 12 months, 63.8% to be exact, had only one occasion to make use of transmission cleaner. It was used twice by 17.4%, and 3 times by 10.1% of this group of 75 recent users. Table AA-5: Percentile rankings of number of uses of Transmission Cleaner within the last 12 months (N=69 recent users) Uses Minimum 1.00 5% 1.00 10% 1.00 1.00 Median 1.00 75% 2.00 90% 3.00 95% 9.00 Maximum 26.00 5-377 ------- Q4: How much time did you spend using transmission cleaner the last time you used it? Table AA-6: Time spent using the Transmission Cleaner last time used (N=67 recent users) Mean # of minutes 27.90 Median # of minutes 15.00 Standard deviation 61.44 The mean number of minutes of use of transmission cleaner is a little less than half an hour. The median is a quarter hour. Table AA-7: Percentile rankings for time spent using the Transmission Cleaner last time used (N=67 recent users) Minutes Minimum 0.17 1% 5% 0.35 10% 1.80 25% 5.00 Median 15.00 75% 30.00 90% 60.00 95% 60.00 99% Maximum 450.00 The time spent using the product ranges from a few seconds to seven and one-half hours. Respondents spending one hour or less using the product include more than 95% of those with recent experience using transmission cleaner. 5-378 ------- Q5: How much time did you spend in the room immediately after use the last time you used transmission cleaner? Table AA-8: Time spent in the room after use of Transmission Cleaner (N=69 recent users) Mean # minutes in room 5.29 Median # minutes in room 0.00 Standard deviation 29.50 The mean number of minutes spent in the room after use is just over 5.0 minutes. The median value of zero indicates that at least half the respondents left the room immediately after using the product. Table AA-9: Percentile rankings for time spent in the room after use including those who did not spend any time in room after use of Transmission Cleaner (N=69 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Minutes 0.00 NA .00 0.00 0.00 0.00 0.00 0.00 5.00 22.50 240.00 More than 75% of respondents spent no time in the room following use of the product, while fully 95% stayed in the room less than 23.0 minutes, and none stayed longer than 240.0 minutes (4 hours). 5-379 ------- Table AA-10: Percentile rankings of time spent in the room after last use of Transmission Cleaner, including only those respondents who spent time in the room (N=8 recent users who stayed in the room afterwards) Minutes Minimum 5.00 1% 5% 10% 25% 6.25 Median 15.00 75% 41.25 90% 95% 99% Maximum 240.00 Table AA-10 is similar to Table AA-9 except it includes only users who did in fact stay in the room after using the product, therefore the zero values are eliminated. 5-380 ------- Q6A: Which brand of transmission cleaner did you use the last time you used it? Table AA-11: Brand distribution for Transmission Cleaners Brand category Frequency Percent Top brand Second highest brand Third highest brand 9 12.0 8 10.7 6 8.0 Don't Knows and Not Ascertained 43 57.3 All other named brands Total 9 12.0 75 100.0 A total of 42.7% of the respondents specified a brand. The top three brands of Transmission Cleaner named were used by 12.0%, 10.7% and 8.0% of the users, respectively. Q6B: Was the product in aerosol form? Table AA-12: Percent of respondents saying Transmission Cleaner is aerosol (N-69 recent users) Yes, product is aerosol 21.7 No, product is nonaerosol 78.3 More than three-quarters of the transmission cleaner used by respondents was in a form other than aerosol. 5-381 ------- Q7: What size of transmission cleaner did you use the last time you used it? How much of a can or how many cans did you use during the past year? The two questions above were used to derive the variable called ounces per year. Table AA-13: Amount of Transmission Cleaner used in ounces (N=64 recent users) Mean ounces per year 35.71 Median ounces per year 15.00 Standard deviation 62.93 The mean number of ounces of transmission cleaner used per year is moderate to high compared to the amounts used of other products. Table AA-14: Percentile rankings for amount of Transmission Cleaner used in ounces (N=64 recent users) Minimum 1% 5% Ounces 2.00 10 25% Median 75% 90% 95% 99% Maximum 3.75 4.00 8.00 15.00 32.00 77.00 140.00 360.00 The range between the minimum and maximum values in Table AA-14 is substantial, with the minimum at only 2.0 ounces per year and the maximum at 360.0 ounces per year. The seventy-fifth percentile respondent used no more than about 32.0 ounces per year. 5-382 ------- Q8: Where did you use transmission cleaner the last time you used it? Table AA-15: Location where the product was last used (N=69 recent users) Basement 0.0% Living Room 0.0% Other inside room 1.4% Several inside rooms 0.0% Garage Outside 14.5% 79.7% Garage & outside 4.3% Total 100.0% Most people (79.7%) used transmission cleaner outside, with the second most common usage location being the garage, and the third being a combination of garage and outside. Rarely (1.4%) was the product used in a room of the house other than the garage. 5-383 ------- Table AA-16: Protective measures undertaken while using Transmission Cleaner Yes No (#'s) (#'s) 1. Door or Window Open to the Outside 7 4 (N=ll recent inside users) 2. Exhaust Fan on During Use (N=ll recent inside users) 2 9 3. Whether Inside Door to Room Was Open (N=10 recent inside users) 6 4 4. Whether Directions on Label Were Read 59 10 (N=69 all recent users) For the three guestions concerned with air flow in the room in which the product was used, it should be noted that there were only 10 or 11 respondents. Most of these respondents did keep the window or door open to the outside, but kept inside door(s) closed and did not use an exhaust fan. More than 85.0% of the 69 respondents who answered the guestion regarding reading of the product label claimed to have done so. Table AA-17 is a derived variable indicating the number of ounces per use. It is derived by dividing Question 7 (ounces per year) by Question 3 (# of times used in the last year). Table AA-17: Ounces per use of Transmission Cleaner (N=63 recent users) Mean # of ounces per use 16.60 Median # of ounces per use 12.00 Standard deviation 18.83 Table AA-17 shows the mean value for ounces per use is a relatively high number compared to those for some other products encountered. 5-384 ------- Table AA-18: Percentile rankings of ounces per use of Transmission Cleaner (N-63 recent users) Minimum 1% 5% 10% Ounces/Use 2.00 25 Median 75% 90% 95% 99% Maximum 3.15 4.00 6.00 12.00 18.00 32.00 55.20 128.00 Table AA-18 indicates that there is a jump between the 95th percentile of 55.20 and the maximum value of 128.00, and more than a four-fold increase between the median and the 95th percentile, from 12.0 to 55.20. Table AA-19: Respondent characteristics of Transmission Cleaner users 1. Respondent Age Mean = 36.33 years (N=75 recent users) 2. Respondent Gender Male = 69.3% (N=75 recent users) Female = 30.7% 3. Number of Household Members Mean =3.19 members (N=75 recent users) 4. Number of Bedrooms Mean =2.63 bedrooms (N=75 recent users) Table AA-19 presents the respondent characteristics of transmission cleaner users. The mean age of these respondents, at 36.33, is about 8 years younger than the mean for the total sample. These respondents are also predominantly male, while the total sample is nearly evenly divided between men and womena function most likely of the fact that this is an automotive product. Household membership and number of bedrooms much more nearly approximate the full sample figures. 5-385 ------- MINA 5-387 ------- BB. Product 28: Battery Terminal Protector Ql: Have you ever used battery terminal protector? Table BB-1: Numbers and % of Respondents Ever Using Battery Terminal Protector Numb e r s Percent Yes No Total 333 4584 4917* 6.7 93.3 100.0 *3 cases where information was not ascertained Table BB-1 shows that 6.7% of the total respondents have "ever" used battery terminal protector. This is among the lowest usage rates of any product evaluated. Q2: When was the last time you used battery terminal protector? Table BB-2: Last time Battery Terminal Protector was used in months (N=327 users) Mean # of months Median # of months Standard deviation 14.00 6.00 25.03 As Table BB-2 shows, the mean number of months since last use of a battery terminal protector is 14.0 months. Compared to other products studied, this is a moderate amount of time since last use. 5-389 ------- The percentile rankings for time since last use are shown below: Table BB-3: Percentile rankings for Battery Terminal Protectormonths since last use (N=327 users) Months Minimum 0.03 1% 0.03 5% 0.10 10% 0.43 25% 2.00 Median 6.00 75% 12.00 90% 36.00 95% 60.00 99% 120.00 Maximum 240.00 Table BB-3 shows that respondents in the lowest 25th percentile grouping used the product within the 2.0 month period preceding their answering the question. The 75th percentile through the 100th percentile respondents report that they last used the product between 12 months (1 year) and 240.0 months (20 years) ago. 5-390 ------- Q3: How many times have you used battery terminal protector in the last 12 months? Table BB-4: Number of uses of Battery Terminal Protector within the last 12 months (N-228 recent users) Mean # of uses 3.95 Median # of uses 2.00 Standard deviation 24.33 Among those respondents who had used the product within the past year, the mean number of uses was nearly 4.0, and the median number of uses was 2.0. Nearly half of the respondents who had used the product within the past 12.0 months, 49.6% to be exact, had only one occasion to make use of battery terminal protector. It was used twice by 28.9%, and three times by 9.2% of this group of 228 recent users. Table BB-5: Percentile rankings of the number of uses of Battery Terminal Protector within the last 12 months (N=228 recent users) Uses Minimum 1.00 1% 1.00 5% 1.00 10% 1.00 25% 1.00 Median 2.00 75% 2.00 90% 4.00 95% 6.55 99% 41.30 Maximum 365.00 5-391 ------- Q4: How much time did you spend using battery terminal protector the last time you used it? Table BB-6: Time spent using the Battery Terminal Protector last time used Mean # of minutes 9.61 Median # of minutes 5 Standard deviation 18.15 Compared to other products, the mean number of minutes of use of battery terminal protector is relatively low. Table BB-7: Percentile rankings for time spent using the Battery Terminal Protector last time used (N=226 recent users) Minutes Minimum 0.03 1% 0.04 5% 0.08 10% 0.23 25% 1.00 Median 5.00 75% 10,00 90% 20.00 95% 30.00 99% 120.00 Maximum 180.00 The time spent using the product ranges from a few seconds to three hours. Nearly 95% of respondents had spent less than 30.0 minutes using the product, while half had spent 5.0 minutes or less. 5-392 ------- Q5: How much time did you spend in the room immediately after use the last time you used battery terminal protector? Table BB-8: Time spent in the room after use of Battery Terminal Protector (N=226 recent users) Mean # minutes in room 3.25 Median # minutes in room 0.00 Standard deviation 17.27 The mean number of minutes spent in the room after last use is just over 3 minutes. The median value of zero indicates that at least half the respondents left the room immediately after using the product. Table BB-9: Percentile rankings for time spent in the room after last use including those who did not spend any time in room after use of Battery Terminal Protector (N=226 recent users) Minimum 5% 10% 25% Median 75% 90% 95% 99% Maximum Minutes 0.00 0.00 0.00 0.00 0.00 0.00 2.90 15.00 120.00 180.00 More than 75% of respondents spent no time in the room following use of the product, while fully 90% stayed in the room less than 3 minutes. 5-393 ------- Table BB-10: Percentile rankings of time spent in the room after last use of Battery Terminal Protector, including only those who spent time in the room (N=25 recent users who stayed in the room afterwards Minutes Minimum 1.00 5% 1.00 10% 1.60 25% 5.00 Median 10.00 75% 30.00 90% 120,00 95% 162.00 Maximum 180.00 Table BB-10 is similar to Table BB-9 except it includes only users who did in fact stay in the room after using the product, therefore the zero values are eliminated. 5-394 ------- Q6A: Which brand of battery terminal protector did you use the last time you used it? Table BB-11: Brand distribution for Battery Terminal Protectors Brand category Frequency Percent Top brand Second highest brand Third highest brand Don't Knows and Not Ascertained All other named brands Total 15 10 9 145 53 232 6.5 4.3 3.9 62.5 22.8 100.0 A total of 37.5% of the users of the product specified a brand. The top 3 brands of battery terminal protector named were used by 6.5%, 4.3 and 3,9% of the respondents, respectively. Q6B: Was the product in aerosol form? Table BB-12: Percent of respondents saying Battery Terminal Protector is aerosol (N=226 recent users) Yes, product is aerosol 58.4 No, product is nonaerosol 41.6% Nearly three-fifths of the battery terminal protector used by respondents was in aerosol form. 5-395 ------- Q7: What size of battery terminal protector did you use the last time you used it? How much of a can or how many cans did you use during the past year? The two questions above were used to derive the variable called ounces per year. Table BB-13: Amount of Battery Terminal Protector used in ounces (N=193 recent users) Mean ounces per year 16.49 Median ounces per year 4,00 Standard deviation 87.84 As might be expected, the mean ounces of battery terminal protector used per year is rather low compared to the amounts used of other products. Most of the other products included were used in larger quantities by those who used them than was battery terminal protector. Table BB-14: Percentile rankings for amount of Battery Terminal protector used in ounces (N=193 recent users) Ounces Minimum 0.12 1% 0.13 5% 0.58 10% 1.00 25% 2.00 Median 4.00 75% 8.00 90% 15.00 95% 24.60 99% 627.00 Maximum 1050.00 The range between the minimum and maximum values in Table BB-14 is tremendous, with the minimum at .12 ounces per year and the maximum at 1050.0 ounces per year. Nearly three quarters of the respondents using the product used no more than about 8.0 ounces per year. 5-396 ------- Q8: Where did you use battery terminal protector the last time you used it? Table BB-15: Location of last use of the product (N=225 recent users) Basement 0.0% Living Room 0.0% Other inside room 1.3% Several inside rooms 0.0 Garage Outside 11.6% 86.7% Garage & outside 0.4 Total 100.0% Most people (86.7%) used battery terminal protector outside, with the second most common usage location being the garage. Rarely (1.3%) was the product used in a room of the house other than the garage. 5-397 ------- Table BB-16: Protective measures undertaken while using Battery Terminal Protector Yes No (#'s) (#'s) 1. Door or window open to the outside 23 6 (N=29 recent inside users) 2. Exhaust fan on during use (N=29 recent inside users) 3 26 3. Whether inside door to room was open 15 13 (N=28 recent inside users) 4. Whether directions on label were read 157 63 (N=220 all recent users) For the three questions concerned with air flow in the room in which the product was used, it should be noted that there were only 28 or 29 respondents. Most of these respondents did keep the window or door open to the outside, but kept inside door(s) closed and did not use an exhaust fan. More than 71.0% of the 220 respondents who answered the question regarding reading of the product label claimed to have done so. Table BB-17 is a derived variable indicating the number of ounces per use. It is derived by dividing Question 7 (ounces per year) by Question 3 (# of times used in the last year). Table BB-17: Ounces per use of Battery Terminal Protector (N=193 recent users) Mean # of ounces per use 8.07 Median # of ounces per use 2.72 Standard deviation 45.40 Table BB-18 shows that the mean ounces per use for battery terminal protector is moderate compared to other products included in the study. 5-398 ------- Table BB-18: Percentile rankings of ounces per use of Battery Terminal Protector (N=193 recent users) Minimum i -L 5% 10% 25% Median 75% 90% 95% 99% Maximum Ounces/Use 0.06 0.08 0.31 0.60 1.08 2.72 5.00 8.60 13.25 223.96 600.00 Table BB-18 indicates that here is a huge jump between the 95th percentile of 13.25 and the maximum value of 600.00 with the rate of increase being less dramatic until the 95th percentile. Table BB-19: Respondent characteristics of Battery Terminal Protector users 1. Respondent age Mean = 42.34 years (N=220 recent users) 2. Respondent gender Male =87.9 (N=232 recent users) Female =12.1 3. Number of household members Mean = 3.18 members (N=230 recent users) 4. Number of bedrooms Mean = 2.92 bedrooms (N=232 recent users) Table BB-19 presents the respondent characteristics of battery terminal protector users. The mean age of these respondents, at just over 42, is about 2 years younger than the mean for the total sample. These respondents are also nearly exclusively male, while the total sample is nearly evenly divided between men and womena function most likely due to the fact that this is an automotive product. Household membership and number of bedrooms much more nearly approximate the full sample figures. 5-399 ------- EANE 5-401 ------- cc. Product 29: Brake Cleaner Ql: Have you ever used the brake quieter/cleaner? Table CO1: Numbers and % of Respondents Ever Using Brake Quieter/Cleaner Numbers Percent Yes No Total 133 4784 4917* 2.6 97.4 100.0 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ *3 cases where information was not ascertained Table CC-1 shows that 2.6% of the total respondents have "ever" used brake quieter/cleaner. This is among the lowest usage rates of any product evaluated. 02: When was the last time you used brake quieter/cleaner? Table CC-2: Last time Brake Quieter/Cleaner was used in months (N=130 users) Mean # of months Median # of months Standard deviation 13.30 6.00 25.90 As Table CC-2 shows, the mean numb f ths since last use of brake quieter/cl prod use. t tudied. th a s 13. derat month mount C f t pared t th since last 5-403 ------- The percentile rankings for time since last use are shown below: Table CC-3: Percentile rankings for Brake Quieter/Cleaner months since last use (N=130 users) Months Minimum .03 1% 0.08 5% 0.33 10% 0.46 25% 1.00 Median 6.00 75% 12.00 90% 46.80 95% 53.40 99% 187.92 Maximum 240.00 Table CC-3 shows that respondents in the lowest 25th percentile grouping used the product within the month preceding their answering the question. The 75th percentile through the 100th percentile respondents report that they last used the product between 12 months and 240 months (20 years) ago. 5-404 ------- Q3: How many times have you used brake quieter/cleaner in the last 12 months? Table CC-4: Number of uses of Brake Quieter/Cleaner within the last 12 months (N=95 recent users) Mean # of times 3.00 Median # of times 2.00 Standard deviation 6.06 Among those respondents who had used the product within the past year, the mean number of times it had been used was 3.0 and the median number of uses was 2.0. Nearly half of the respondents who had used the product within the past 12 months, 49.5% to be exact, had only one occasion to make use of brake quieter/cleaner. It was used twice by 29.5%, and 3 times by 6 3 Table CC-5: Percentile rankings of the number of uses of Brake Quieter/Cleaner within the last 12 months (N=95 recent users) Uses Minimum 1.00 5% 1.00 10% 1.00 25% 1.00 Median 2.00 75% 2.00 90% 6.00 95% 10.40 Maximum 52.00 5-405 ------- Q4: How much time did you spend using brake quieter/cleaner the last time you used it? Table CC-6: Time spent using the Brake Quieter/Cleaner last time used (N=96 recent users) Mean # of minutes 23.38 Median # of minutes 15.00 Standard deviation 36.32 The mean number of minutes spent during last use of brake quieter/cleaner is 23.38 and the median is 15.0. Table CC-7: Percentile rankings for time spent using the Brake Quieter/Cleaner last time used (N=96 recent users) Minutes Minimum 0.07 5% 0.50 10% 1.00 25% 5.00 median 15.00 75% 30.00 90% 49.50 95% 120.00 Maximum 240.00 The time spent using the product ranges from a few seconds to four hours. Nearly 95% of respondents had spent less than 120 minutes (2 hours) using the product, while half had spent 15.0 minutes or less. 5-406 ------- Q5: How much time did you spend in the room immediately after use the last time you used brake quieter/cleaner? Table CC-8: Time spent in the room after use of Brake Quieter/Cleaner (N=96 recent users) Mean # minutes in room 10.27 Median # minutes in room 0.00 Standard deviation 30.02 The mean number of minutes spent in the room after last use is just over 10 minutes. The median value of zero indicates that at least half the respondents left the room immediately aft using the product. Table CC-9: Percentile rankings for time spent in the room after last use including those who did not spend any time in room after use of Brake Quieter/Cleaner (N=96 recent users) Minimum 5% 10% 25% Median 75% 90% 95% Maximum Minutes 0.00 0.00 0.00 0.00 0.00 0.00 30.00 120.00 120.00 More than 75% of respondents spent no time in the room following use of the product, while fully 90% stayed in the room no more than 30.0 minutes. Only 5% of respondents stayed in the room for 120.0 minutes (2 hours) following use of brake quieter/cleaner, and none stayed longer. 5-^07 ------- Table CC-10: Percentile rankings of time spent in the room after last use of Brake Quieter/Cleaner, including only those who spent time in the room (N=16 recent users who stayed in room afterwards) Minutes Minimum 1.00 5% 10% 7.30 25% 30.00 Median 30.00 75% 120.00 90% 120.00 95% Maximum 120.00 Table CC-10 is similar to Table CC-9 except it includes only users who did in fact stay in the room after using the product, therefore the zero values are eliminated. 5-408 ------- Q6A: Which brand of brake quieter/cleaner did you use the last time you used it? Table CC-11: Brand distribution for Brake Quieters/Cleaners Brand category Frequency Percent Top brand Second highest brand Third highest brand Don't Knows and Not Ascertained 41 41.8 11 11.2 8 8.2 6 6.1 All other named brands Total 34. 32.7 98 100.0 A total of 58.2% of the respondents specified a brand. The top 3 brands of brake quieter/cleaner named were used by 11.2%, 8.2% and 6.1% of users, respectively. Q6B: Was the product in aerosol form? Table CC-12: Percent of respondents saying Brake Quieter/Cleaner is aerosol (N=96 recent users) Yes, product is aerosol 65.6 No, product is nonaerosol 35.4 I Nearly two-thirds of the brake quieter/cleaner used by respondents was in aerosol form. 5-409 ------- Q7: What size of brake quieter/cleaner did you use the last ^H ^^H ^H ^^^^^^^^^L time you used it? How much of a can or h did you use during the past y y cans The two questions above were used to derive the variable called ounces per year. Table CC-13: Amount of Brake Quieter/Cleaner used in ounces (N=86 recent users) ean ounces per year 11.72 Median ounces per year 8.00 Standard deviation 13.25 As might be expected, the mean ounces of brake ter/cleaner used per year is rather low compared to th amounts used of other products. Only a handful of the other products included were used in smaller quantities by those wh used them than was brake quieter/cleaner. Table CC-14: Percentile rankings for amount of Brake Quieter/Cleaner used in ounces (N=86 recent users) Ounces Minimum 0.50 5% 1.00 10% 2.00 25 o. 3.02 Median 8.00 75« 14.25 90% 32.00 95% 38.60 Maximum 78.00 ^^^r ^^^^^^ The range between the minimum and maximum values in Table CC-14 is substantial, with the minimum at one-half ounce per y d the maximum at 78.0 ounces per year. Nearly three quart ^H ^^H ^^^^^^H ^m ^^H ^^^^^^^^^1 ^^^H of the respondents using the product used no more than 14.25 ounces per y 5-410 ------- Q8: Where did you use brake quieter/cleaner the last time you used it? Table CC-15: Location of last use of the product (N=96 recent users) Basement 0.0% Living Room 0.0% Other inside room 2.1% Several inside rooms 0.0% Garage Outside 17.7% 77.1% Garage & outside 3.1% Total 100.0% Most people (77.1%) used brake quieter/cleaner outside, with the second most common usage location being the garage, and the third being a combination of garage and outside. Rarely (2.1%) was the product used in a room of the house other than the garage. 5-411 ------- Table CC-16: Protective measures undertaken while using Brake Quieter/Cleaner Yes No (#'s) (#'s) 1. Door or window open to the outside 14 5 (N=19 recent inside users) 2. Exhaust fan on during use (N=19 recent inside users) 3 16 3. Whether inside door to room was open 13 6 (N=19 recent inside users) 4. Whether directions on label were read 68 27 (N=95 all recent users) For the three questions concerned with air flow in the room in which the product was used, it should be noted that there were only nineteen respondents. Most of these respondents did keep the window or door open to the outside, but kept inside door(s) closed and did not use an exhaust fan. More than 71.0% of the ninety-five respondents who answered the question regarding reading of the product label claimed to have done so. Table CC-17 is a derived variable indicating the number of ounces per use. It is derived by dividing Question 7 (ounces per year) by Question 3 (# of times used in the last year). Table CC-17: Ounces per use of Brake Quieter/Cleaner (N=85 recent users) Mean # of ounces per use 6.26 Median # of ounces per use 4.00 Standard deviation 6.78 Table CC-17 shows that the mean and median values for ounces per use are fairly close to each other, indicating a distribution less skewed than some others encountered. 5-412 ------- Table CC-18: Percentile rankings of ounces per use of Brake Quieter/Cleaner (N=85 recent users) Minimum 5% 10% 25% Median 75% 90% 95% Maximum Ounces/Use 0.32 0.58 1.00 2.00 4.00 8.00 12.00 16.00 40.00 Table CC-18 indicates that here is a large jump between the 95th percentile of 16.0 and the maximum value of 40.0 and a doubling between the 75th and 95th percentiles, from 8.0 to 16.0 Table CO19: Respondent characteristics of Brake Quieter/Cleaner users 1. Respondent age (N=98 recent users) Mean 34.75 years 2. Respondent gender (N=98 recent users) Male Female 93.9 6.1 3. Number of household members (N=98 recent users) Mean 3.25 members 4. Number of bedrooms (N=98 recent users) Mean 2.84 bedrooms ble CC-19 present th pondent characterist f brak ter/cl users. h mean Imost 35, is more th 9 y age young f th r th th pondent mean fo t th total s male, w Pi h pondents are al iy lusively hil th total sampl is iy d women tomotiv ch more a funct t likely t th Iy divided bet e fact that th prod t H hold membership a mb f bed n men is an ooms Iy approximat th 11 s Pi fig 5-413 ------- AS EM VE 5-415 ------- DD. Product 30; Gasket Remover Ql: Have you ever used gasket remover? Table DD-1: Numbers and % of Respondents Ever Using Gasket remover Numbers Percent Yes No 136 2.7 4780 97.3 Total 4916* 100.0 ^ . _ ^^ ^ ^ ^^^^^^^^^^^^^f^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^i^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^f^f^^^^^^^^^^^i^^^^^^^^^^f^f^f^f^^^^^^^^m *4 cases where information was not ascertained Table DD-1 shows that 2.7% of the total respondents have "ever" used gasket remover. This is among the lowest usage rates of any product evaluated. Q2: When was the last time you used gasket remover? Table DD-2: Last time Gasket Remover was used in months (N=132 users) Mean # of months 22.40 Median # of months 9.00 Standard deviation 39.20 As Table DD-2 shows, the mean number of months since last use of gasket remover is 22.40 months. Compared to other products studied, this is a relatively long period of time since last use. 5-417 ------- The percentile rankings for time since last use are shown below: Table DD-3: Percentile rankings for Gasket Removermonths since last use (N=132 users) Months Minimum 0.07 1% 0.07 5% 0.23 10% 0.37 25% 2.00 Median 9.00 75% 24.00 90% 60.00 95% 96.60 99% 240.00 Maximum 240.00 Table DD-3 shows that respondents in the lowest 25th percentile grouping used the product within the two month period preceding their answering the question. The 75th percentile through the 100th percentile respondents report that they last used the product between 24.0 months (2 years) and 240.0 months (20 years) ago. 5-418 ------- Q3: How many times have you used gasket remover in the last 12 months? Table DD-4: Number of uses of Gasket Remover within the last 12 months (N=74 recent users) Mean # of uses 2.50 Median # of uses 1.00 Standard deviation 4.39 Among those respondents who had used the product within the past year, the mean number of times it had been used was 2.50, and the median number of uses was 1.0. Nearly two-thirds of the respondents who had used the product within the past 12 months, 60.8% to be exact, had only one occasion to make use of gasket remover. It was used 2 times by 20.3%, and 3 times by 5.4% of this group of 79 recent users. This makes gasket remover among the least frequently used products of all those studied. Table DD-5: Percentile rankings of the number of uses of Gasket Remover within the last 12 months (N=74 recent users) Uses Minimum 1.00 1% 5% 1.00 10% 1.00 25% 1.00 Median 1.00 75% 2.00 90% 5.00 95% 6.50 99% Maximum 30.00 5-419 ------- Q4: How much time did you spend using gasket remover the last time you used it? Table DD-6: Time spent using the Gasket Remover last time used (N=72 recent users) Mean # of minutes 23.57 Median # of minutes 15.00 Standard deviation 27.18 Compared to other products, the mean and median number of minutes of use of gasket remover are moderate. Table DD-7: Percentile rankings for time spent using the Gasket Remover last time used (N=72 recent users) Minutes Minimum 0.33 1% 5% 0.50 10% 2.00 25% 6.25 Median 15.00 75% 30.00 90% 60.00 95% 60.00 99% Maximum 180.00 The time spent using the product ranges from a few seconds to three hours. At least 95% of respondents spent 60.0 (1 hour) or less using the product, while half spent 15 minutes or less. 5-420 ------- Q5: How much time did you spend in the room immediately after use the last time you used gasket remover? Table DD-8: Time spent in the room after last use of Gasket Remover (N=73 recent users) Mean # minutes in room 27.56 Median # minutes in room 0.00 Standard deviation 58.54 The mean number of minutes spent in the room after last use is just under one-half hour. The median value of zero indicates that at least half the respondents left the room immediately after using the product. Table DD-9: Percentile rankings for time spent in the room after last use including those who did not spend any time in room after use of Gasket Remover (N=73 recent users) Minimum 1 3- -L"6 Minutes 0.00 5 10 25 Median 75 90 95% 99% Maximum 0.00 0.00 0.00 0.00 12.50 120.00 180.00 240.00 More than 50% of respondents spent no time in the room following use of the product, while 75% stayed in the room 12.50 minutes. Only about 10% of respondents stayed in the room for 120.0 minutes (two hours) or more following use of gasket remover. 5-421 ------- Table DD-10: Percentile rankings of time spent in the room after last use of Gasket Remover, including only those respondents who spent time in the room (N-24 recent users who stayed in the room afterwards) Minutes Minimum 2.00 1% 5% 2.75 10% 7.50 25% 11.25 Median 60.00 75% 120.00 90% 210.00 95% 240.00 99% Maximum 240.00 Table DD-10 is similar to Table DD-9 except it includes only users who did in fact stay in the room after using the product, therefore the zero values are eliminated. 5-422 ------- Q6A: Which brand of gasket remover did you use the last time you used it? Table DD-11: Brand distribution for Gasket Remover Brand category Frequency Percent Top brand Second highest brand Third highest brand Don't Knows and Not Ascertained All other named brands Total 18 6 4 37 14 79 22.8 7.6 5.1 46.8 17.7 100.0 total of 53.2% of the respondents specified a brand. The top 3 brands of gasket remover named were used by 2* 2* » O ^ - 7.6% and 5.1 of users, respectively. Q6B: Was the product in aerosol form? Table DD-12: Percent of respondents saying Gasket Remover is aerosol (N=73 recent users) Yes, product is aerosol 49.3 No, product is nonaerosol 50.7 About one-half of the gasket remover used by respondents was in aerosol form. 5-423 ------- Q7: What size of gasket remover did you use the last time you used it? How much of a can or how many cans did you use during the past year? The two questions above were used to derive the variable called ounces per year. Table DD-13: Amount of Gasket Remover used per year in ounces (N=66 recent users) Mean ounces per year 13.25 Median ounces per year 7.75 Standard deviation 22.35 As might be expected, the mean ounces of gasket remover used per year is rather low compared to the amounts used of other products. Not very many of the other products included were used in smaller quantities by those who used them than was gasket remover. Table DD-14: Percentile rankings for amount of Gasket Remover used in ounces (N=66 recent users) Minimum i s- -L'S Ounces 0.50 5 0 25 Media 75% 90% 95% 99 Maximum 1.00 1.00 3.75 7.75 16.00 24.00 58.40 160.00 The range between the minimum and maximum values in Table DD-14 is substantial, with the minimum at one-half ounce per year and the maximum at 160.0 ounces per year. Nearly three quarters of the respondents using the product used no more than about 16.0 ounces per year. 5-424 ------- Q8: Where did you use gasket remover the last time you used it? Table DD-15: Location of last use of the product (N=72 recent users) Basement 0.0% Living Room 0.0 Other inside room 0.0 Several inside rooms 0.0 I I I Garage Outside 37.5 59.7 Garage & outside 2.8 °6 Total 100.0% Most people (59.7%) used gasket remover outside, with the second most common usage location being the garage, and the third being a combination of garage and outside. The product was never used in a room of the house other than the garage. 5-425 ------- Table DD-16: Protective measures undertaken while using Gasket Remover Yes No (#'s) (#'s) 1. Door or window open to the outside 21 6 (N=27 recent inside users) 2. Exhaust fan on during use (N=27 recent inside users) 2 25 3. Whether inside door to room was open (N=26 recent inside users 13 13 4, Whether directions on label were read 54 19 (N=73 all recent users) For the three questions concerned with air flow in the room in which the product was used, it should be noted that there wer only 26 or 27 respondents. Most of these respondents did keep the window or door open to the outside, but did not use an exhaust fan. Respondents were evenly divided as to whether they kept inside door(s) open or closed. Nearly three-quarters of the 73 respondents who answered the question regarding reading of the product label claimed to have done so* Table DD-17 is a derived variable indicating the number of ounces per use. It is derived by dividing Question 7 (ounces per year) by Question 3 (# of times used in the last year). Table DD-17: Ounces per use of Gasket Remover (N=66 recent users) Mean # of ounces per use 7.09 Median # of ounces per use 4.00 Standard deviation 9.44 Table DD-17 shows that the mean and median values for ounces per use are reasonably close to each other, indicating a distribution less skewed than some others encountered. 5-426 ------- Table DD-18: Percentile rankings of ounces per use of Gasket Remover (N=66 recent users) Minimum 1% 5% 10% 25% Median 75 90% 95% 99% Maximum Ounces/Use 0.50 0.50 0.97 2.00 4.00 8.00 16.19 25.74 64.00 Table DD-18 indicates that there is a jump between the median value of 4.0 and the maximum value of 64.0. Table DD-19: Respondent characteristics of Gasket Remover users 1. Respondent age (N=79 recent users) Mean 36.61 years 2. Respondent gender (N=79 recent users) Male Female 88. 6-6 11.4 3. Number of household members (N=79 recent users) Mean 3.33 members 4 Number of bedrooms (N=79 recent users) Mean 3.01 bedrooms Table DD-19 presents the respondent characteristics of gasket remover users. The mean age of these respondents, at less than 37, is nearly 8 years younger than the mean for the total sample. These respondents are also much more likely to be male, while the total sample is nearly evenly divided between men and womena function most likely due to the fact that this is an automotive product. Household membership and number of bedrooms much more nearly approximate the full sample figures. 5-427 ------- El CA EANE 5-429 ------- EE. Product 31: Tire/Hub Cleaners Ql: Have you ever used tire/hubcap cleaners? Table EE-1: Numbers and % of respondents ever using Tire/Hubcap Cleaners Numbers Percent Yes No Total 782 4135 4917* 15.9 84.1 100.0 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^V^P^^^^B^^^B^^^^^^^^^riM^HB'^^^^^^^^HP^P^^^i^^^^^^^^^^^^H^^^ *3 cases where information was not ascertained Table EE-1 shows that 15.9% of the total respondents have ever" used tire/hubcap cleaners. 02: When was the last time you used tire/hubcap cleaners? Table EE-2: Last time Tire/Hubcap Cleaner was used in months (N=777 users) Mean # of months Median # of months Standard deviation 7.30 1.00 20.22 A Table EE-2 shows, th an mb f m th since last use of tire/hubcap cl th Th Th qu diff mean is more th nee is the resu is 7.30 m an seven t It of a fe th d th d 1 the rem size of the med P t th 5-431 ------- The percentile rankings for time since last use are shown below: Table EE-3: Percentile rankings for Tire/Hubcap Cleaners months since last use (N=777 users) Months Minimum 0.03 1% 0.03 5% 0.07 10% 0.10 25% 0.23 Median 1.00 75% 6.00 90% 13.00 95% 36.00 99% 101.28 Maximum 240.00 Table EE-3 shows that the months since the product was last used range from a minimum of 0.03 months to a maximum of 240.0 months. Twenty-five percent of the users last used the product less than a month ago. The number of months reported may be subject to rounding discussed earlier under aspects of the data (i.e. 3, 20 years rather than 3 years 3 months). The data are usable for indicating the approximate last use. 5-432 ------- Q3: How many times have you used tire/hubcap cleaners in the last 12 months? Table EE-4: Number of uses of Tire/Hubcap Cleaners within the last 12 months (N=691 recent users) Mean # of uses 11.18 Median # of uses 4.00 Standard deviation 18.67 The mean number of uses for tire/hubcap cleaners in the last 12 months is 11.18 uses and the median is 4 uses. Of the 691 respondents who answered this question, 18.7% used it once, 13.7 used it twice and 10% used it three times in the last year. As shown in Table EE-5 which follows, 99% of the respondents used the product 77 times or less in the last year. The maximum number of times the product was used is 200. Table EE-5: Percentile rankings of mumber of uses of Tire/Hubcap Cleaners within the last 12 months (N=691 recent users) Uses Minimum 1.00 1% 1.00 5% 1.00 10 25 o 1.00 2.00 Median 4.00 75% 12.00 90% 30.00 95% 50.00 99% 77.00 Maximum 200.00 5-433 ------- Q4: How much time did you spend using tire/hubcap cleaner the last time you used it? Table EE-6: Time spent using Tire/Hubcap Cleaners last time used (N=683 recent users) Mean # of minutes 22.66 Median # of minutes 15.00 Standard deviation 23.94 The mean and median number of minutes for using tire/hubcap cleaners are 22.66 and 15.0 minutes respectively. Table EE-7: Percentile rankings for time spent using Tire/Hubcap Cleaners last time used (N=683 recent users) Minutes Minimum 0.08 1% 0.71 5% 3.00 10% 5.00 25% 10.00 Median 15.00 75% 30.00 90% 60.00 95% 60.00 99% 120.00 Max 240.00 The time spent using tire/hubcap cleaners ranges from a minimum of 0.08 minutes to 240.0 minutes at the 100th percentile Ninety-five percent of the respondents used the product for 1 hour or less. 5-434 ------- Q5: How much time did you spend in the room immediately after use the last time you used tire/hubcap cleaners? Table EE-8: Time spent in the room after last use of Tire/Hubcap Cleaners (N=682 recent users) Mean # minutes in room 1.51 Median # minutes in room 0.00 Standard deviation 20.43 The mean number of minutes spent in the room after use is 1.51 minutes. Of the 32 products surveyed, this is the smallest period of time spent in the room after use of the product. The median is zero as 95% of the respondents did not spend any time in the room after use of tire/hubcap cleaners. Table EE-9: Percentile rankings for time spent in the room after last use of Tire/Hubcap Cleaners including those who did not spend any time in the room (N=682 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Minutes 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 30.00 480.00 Only respondents at the 99th and 100th percentile did spend time in the room after using tire/hubcap cleaners. 5-435 ------- Table EE-10: Percentile rankings for Tire/Hubcap Cleaners for time spent in the room after use including only those who spent time in the room (N=14 recent users who stayed in the room afterwards) Minutes Minimum 2.00 1% 5% 10% 3.50 25% 8.75 Median 30.00 75% 75.00 90% 330.00 95% 99% Maximum 480.00 Table EE-10 is similar to Table EE-9 except it includes only users who did in fact stay in the room after using the product Only 14 users did spend some time in the room after use of the product. Since the number spending time in the room is small it was not possible to calculate the time spent at the 1st, 5th, 95th and 99th percentile. The mean time now spent in the room is 73.70 minutes and the median is 30.0. This differs considerably from the mean and median in Table T-8 as respondents who did not spend any time in the room have now been excluded. 5-436 ------- Q6A: Which brand of tire/hubcap cleaner did you use the last time you used it? Table EE-11: Brand distribution for Tire/Hubcap Cleaners Brand category Frequency Percent Top brand Second highest brand Third highest brand Don't Knows and Not Ascertained All other named brands Total 168 42 33 219 225 687 24.1 6.0 4.7 31.4 33.8 100.0 Sixty-nine percent (68.6%) of the users of the product specified a brand. The top three brands of tire/hubcap cleaners named were used by respectively. 24.1, 6.0 I and 4.7^ of respondents, Q6B: Was the product in aerosol form? Table EE-12: Percent of respondents saying the Tire/Hubcap Cleaner used is in aerosol or nonaerosol form (N=685 recent users) Yes. product is aerosol 29.50 2r No, product is nonaerosol 70.50^5 The majority of respondents (70.5%) said the tire/hubcap cleaner they used was in nonaerosol form. 5-437 ------- Q7: What size of tire/hubcap cleaner did you use the last time you used it? How much of a can or how many cans did you use during the past year? The two questions above were used to derive the variable called ounces per year. Table EE-13: Amount of Tire/Hubcap Cleaner used in ounces (N=637 recent users) Mean ounces per year 31.58 Median ounces per year 12.00 Standard deviation 80.39 The mean ounces used per year for tire/hubcap cleaners is 31.58 ounces and the median is 12.0 ounces. Table EE-14: Percentile rankings for amount of Tire/Hubcap Cleaners used in ounces (N=637 recent uses) Minimum 1 2- J-*0 5 10% 25% Median 75% 90% 95% 99% Maximum Ounces 0.12 0.50 1.82 3.00 6.00 12.00 28.00 64.00 96.00 443.52 960.00 The minimum amount of tire/hubcap cleaners used is 0.12 ounces and the maximum is 960.0 ounces. Ninety-five percent of the respondents used 96.0 ounces or less of the product. 5-438 ------- Q8: Where did you use tire/hubcap cleaner the last time you used it? Table EE-15: Location of where product used last time (N=684 recent users) Basement 0.0% Living room 0.3% Other inside room 0.1% Several inside rooms 0.0% Garage Outside 4.0% 94.9% Garage & outside 0.7% Total 100.0% As expected the majority of the respondents (94.9%), used the product outside. A total of 4% used the product in the garage. The remaining .4% of the respondents used the product inside in a room other than the garage. 5-439 ------- Table EE-16: Protective measures undertaken while using Tire/Hubcap Cleaners Yes No 1. Door or window open to the outside 56.0% 44.0% (N=25 recent inside users) 2. Exhaust fan on during use (N=23 recent inside users) 4.3% 95.7% 3. Whether inside door to room was open 45.8% 54.2 (N=24 recent inside users) 4. Whether directions on label were read 67.1% 32.9% (N=659 all recent users) The majority of the users who used the product inside, had read the directions on the label (67.1%). A little more than half the respondents had a door or window open to the outside (56%). Less than half the respondents had an inside door to the room open (45.8%). Table EE-17 is a derived variable ounces per use and it is derived by dividing Question 7 (ounces per year) by Question 3 (# of times used in the last year). Table EE-17: Ounces per use of Tire/Hubcap Cleaners (N=636 recent users) Mean # of ounces per use 4.90 Median # of ounces per use 2.67 Standard deviation 11.72 The mean ounces per use of the product is 4.90 and the median is 2.67. Table EE-18 which follows presents the percentile rankings for this variable. Ninety-five percent of the respondents used 16.0 ounces or less of the product per use. The maximum ounces used per use is 256.0. 5-440 ------- Table EE-18: Percentile rankings of ounces per use of Tire/Hubcap Cleaners (N=636 recent users) Minimum 1% 5% 10% 25% Median 75% 90% 95% 99% Maximum Ounces/Use 0.02 0.07 0.30 0.53 1.23 2.67 6.00 10.55 16.00 32.00 256.00 Table EE-19: Respondent characteristics of Tire/Hubcap Cleaner users 1. Respondent age Mean = 38.04 years (N=696 recent users) 2. Respondent gender Male =63.6 (N=696 recent users) Female = 36.4 I 3. Number of household members (N=696 recent users) Mean =3.15 members 4. Number of bedrooms Mean =2.92 bedrooms (N=696 recent users) Table EE-19 presents the respondent characteristics of tire/hubcap cleaners. The mean age of these respondents is 38.04 years. The number of male respondents (63.6%) is nearly twice the number of female respondents (36.4%). Except for respondent gender, the other characteristics are similar to the characteristics for the total sample of respondents. The total sample has nearly an equal number of male and female respondents. 5-441 ------- NI AN WI YE 5-443 ------- FF. Product 32: er Ql: Have you ever used ignition wire dryer? Table FF-1: Numbers and % of Respondents Ever Using Ignition Wire Dryer Numbers Percent Yes No Total 240 4677 4917* 4.8 95.2 100.0 - ^^ ^^^^^^^^ - ^^^^^^^^^^^^ ^^^^^^^^^^ . ^^^^^^ ^^^-^^^-^^^^^^^^^^_^^^^^^_MJ^^^^^^^_^^^^^^^_ _^_ . ^^^^-^^^^ __1J_^^fc.^^^^^^^^_^^^_1J.^^^^^M^^^^^_^^^^^_m_^^,^^^^^^^_^^^^^^^_M__m_^^^^^^^^^^^^,^^_^^_^^>^^^^^^^^^^_^^^^_^^^^^M^^^^^_^^^^^_^^M_1__^^^^^^^^^^^^a^_^_1^_^_^^^^^^^^^^^^^_^^^^^^__^^^^^^^^^_^^^^^^_^^___^^^^^^^^^^^^_^^^^^^^_ _^^ ^^^^^^^^_ ^_^_^^^|^^^^^^^_^^^^^^^_ _ ^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^'^'^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^'^^^^^^^^^^^^^^^^^^^^^^^^ *3 cases where information was not ascertained Table FF-l shows that 4.8% of the total respondents have "ever" used ignition wire dryer. This is among the lowest usage rates of any product evaluated. Q2: When was the last time you used ignition wire dryer? Table FF-2: Last time Ignition Wire Dryer was used in months (N-234 users) Mean # of months Median # of months Standard Deviation 22.80 8.00 44.33 As Table FF-2 shows, the mean number of months since last use of ignition wire dryer is 22.8.0 months. Compared to other products studied, this is a rather long amount of time since last use. 5-445 ------- The percentile rankings for time since last use are shown below: Table FF-3: Percentile rankings for Ignition and Wire Dryer months since last use (N=234 users) Months Minimum 0.07 1% 0.07 5% 0.23 10% 0.69 25% 3.00 Median 8.00 75% 24.00 90% 60.00 95% 96.00 99% 219.00 Maximum 480.00 Table FF-3 shows that respondents in the lowest 25th percentile grouping used the product within the three month period preceding their answering the question. The 75th percentile through the 100th percentile respondents report that they last used the product between 24.0 months (2 years) and 480.0 months (40 years) ago. 5-446 ------- |