Nonmethane Organic Compounds (NMOC) And Speciated Nonmethane Organics Compounds SNMOC) Monitoring Program 1997

        United States
        Environmental Protection
        Agency	
           Office of Air Quality
           Planning and Standards
           Research Triangle Park, NC 27711
EPA-454/R-99-016
January 1999
        Air
r/EPA
  1997 Nonmethane Organic
    Compounds (NMOC)
             And
    Speciated Nonmethane
Organic Compounds (SNMOC)
     Monitoring Program

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    1997 Nonmethane Organic Compounds (NMOC)
    and Speciated Nonmethane Organic
    Compounds (SNMOC) Monitoring Program
    Final Report
    EPA Contract No. 68-D3-0095
    Delivery Order 12
    Prepared for:

    Kathy Weant and Neil J. Berg, Jr.
    Office of Air Quality Planning and Standards
    U.S. Environmental Protection Agency
    Research Triangle Park, NC 27711
X
CN
                                                 NMraifc.NJ
                                                  (NWNJ)
                 (JUMX)

                     Fort Worth. TX
                      (CAM813)
                                                       January 1999

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1997 Nonmethane Organic Compounds (NMOC)
       and Speciated Nonmethane Organic
   Compounds (SNMOC) Monitoring Program
                    Final Report
             EPA Contract No. 68-D3-0095
                  Delivery Order 12
                     Prepared for:

               Kathy Weant and Neil J. Berg, Jr.
           Office of Air Quality Planning and Standards
             U.S. Environmental Protection Agency
              Research Triangle Park, NC  27711
                      Prepared by:

                Eastern Research Group, Inc.
                   110 Hartwell Avenue
                  Lexington, MA 02173

                      January 1999

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                                  DISCLAIMER
Through its Office of Air Quality Planning and Standards, the U.S. Environmental Protection
Agency funded and managed the research described in this report under EPA Contract No.
68-D3-0095 to Eastern Research Group, Inc. This report has been subjected to the Agency's peer
and administrative review and has been approved for publication as an EPA document. Mention
of trade names or commercial products in this report does not constitute endorsement or
recommendation for their use.

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                               TABLE OF CONTENTS
      List of Figures   	vii
      List of Tables    	ix
      List of Abbreviations	xi
      About This Report	  xiii

1.0   Introduction    	1-1

2.0   The 1997 NMOC/SNMOC Monitoring Program	2-1

      2.1     Monitoring Locations	2-1
      2.2     Compounds Selected for Monitoring	2-2
      2.3     Monitoring Schedules  	2-3
      2.4     Sampling and Analytical Methods	2-4
             2.4.1    Total NMOC	2-4
             2.4.2    SNMOC  	2-5
             2.4.3    VOC 	2-6
             2.4.4    Carbonyls  	2-7

3.0   Data Analysis Methodology	3-1

      3.1     Data Summary Parameters	3-1
      3.2     Analyses and Interpretations  	3-3

             3.2.1    Composition of Air Samples	3-3
             3.2.2    Statistical Analyses	3-4
             3.2.3    Comparison to Selected Meteorological Parameters 	3-5
             3.2.4    Comparison to Concentrations of Ozone and Nitrogen Oxides .... 3-6
             3.2.5    Temporal Variations	3-7

      3.3     Data Quality Parameters	3-8

             3.3.1    Completeness  	3-8
             3.3.2    Precision  	3-8
             3.3.3    Accuracy	3-9

4.0   Analysis of Total NMOC Monitoring Results 	4-1

      4.1     Data Summary Tables  	4-1
                                         in

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                         TABLE OF CONTENTS (Continued)
      4.2     Analyses and Interpretations 	4-2

             4.2.1    Comparison to Selected Meteorological Conditions 	4-2
             4.2.2    Comparison to Concentrations of Ozone and NOX	4-6
             4.2.3    Temporal Variations	4-9

      4.3     Data Quality Parameters	4-9
      4.4     Summary  	4-10

5.0   Analysis of SNMOC Monitoring Results  	5-1

      5.1     Data Summary Tables  	5-1
      5.2     Analyses and Interpretations 	5-4

             5.2.1    Composition of Air Samples	5-4
             5.2.2    Statistical Analyses	5-6
             5.2.3    Comparison to Selected Meteorological Conditions 	5-7
             5.2.4    Comparison to Concentrations of Ozone and NOX	5-11
             5.2.5    Temporal Variations	5-14

      5.3     Data Quality Parameters	5-17
      5.4     Summary  	5-17

6.0   Analysis of VOC Monitoring Results 	6-1

      6.1     Data Summary Tables  	6-1
      6.2     Analyses and Interpretations 	6-3

             6.2.1    Composition of Air Samples	6-3
             6.2.2    Comparison to Selected Meteorological Parameters 	6-5
             6.2.3    Miscellaneous Interpretations	6-6

      6.3     Data Quality Parameters	6-8
      6.4     Summary  	6-9

7.0   Analysis of Carbonyl Monitoring Results	7-1

      7.1     Data Summary Tables  	7-1
      7.2     Analyses and Interpretations 	7-3
      7.3     Data Quality Parameters	7-3
      7.4     Summary  	7-4

                                         iv

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                      TABLE OF CONTENTS (Continued)
8.0   Conclusions and Recommendations 	8-1

     8.1     Conclusions  	8-1
     8.2     Recommendations 	8-4

9.0   References	9-1

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                                 LIST OF FIGURES
2-1   Locations of the 1997 NMOC/SNMOC Monitoring Stations 	2-8
2-2   Dallas, Texas (CAMS5), Monitoring Station	2-9
2-3   Fort Worth, Texas (CAMS13), Monitoring Station  	2-10
2-4   Dallas, Texas (DLTX), Monitoring Station 	2-11
2-5   Juarez, Mexico (JUMX), Monitoring Station	2-12
2-6   Long Island, New York (LINY), Monitoring Station	2-13
2-7   Newark, New Jersey (NWNJ), Monitoring Station  	2-14

4-1   Comparison of NMOC Concentrations at LINY to Selected
      Meteorological Parameters	4-11
4-2   Comparison of NMOC Concentrations at LINY to Wind Direction  	4-13
4-3   Comparison of NMOC Concentrations at NWNJ to Selected
      Meteorological Parameters	4-14
4-4   Comparison of NMOC Concentrations at NWNJ to Wind Direction  	4-16
4-5   Average Monthly NMOC Concentrations Measured from 6:00 a.m. to 9:00 a.m. . .  . 4-17

5-1   Geometric Mean NMOC Concentrations, as Measured by SNMOC
      Analytical Method	5-20
5-2   Geometric Mean Concentrations of the Most Prevalent SNMOC 	5-21
5-3   Breakdown of Total Identified SNMOC by Alkanes, Olefins, and Aromatics	5-25
5-4   BTEX Concentration Ratios Calculated from the SNMOC Monitoring Data	5-26
5-5   Comparison of NMOC Concentrations at CAMS5, CAMS 13, and DLTX
      to Selected Meteorological Parameters	5-27
5-6   Comparison of NMOC Concentrations at CAMS5, CAMS 13, and DLTX
      to Wind Direction	5-31
5-7   Comparison of NMOC Concentrations at JUMX to Selected
      Meteorological Parameters	5-32
5-8   Comparison of NMOC Concentrations at JUMX to Wind Direction	5-34
5-9   Temporal Variations of Total Identified Compounds, by Alkanes, Olefins,
      and Aromatics   	5-35

6-1   Geometric Mean Concentrations of the Most Prevalent VOC	6-10
6-2   Total Concentration of the Most Prevalent VOC, by Compound Group  	6-15
6-3   Composition and Magnitude of BTEX Concentrations at CAMS 13, by Month  .... 6-16
6-4   CAMS5: Concentrations of Styrene as a Function of Wind Direction	6-17
6-5   CAMS 13: Concentrations of Tetrachloroethylene as a Function of Wind Direction .6-18
6-6   DLTX: Concentrations of Styrene as a Function of Wind Direction 	6-19
6-7   JUMX: Concentrations of Methylene Chloride as a Function of Wind Direction ... 6-20

7-1   Geometric Mean Concentration of the Most Prevalent Carbonyls	7-5
                                        vn

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                                 LIST OF TABLES
 1-1   Organization of the 1997 NMOC/SNMOC Summary Report 	1-3

 2-1   Background Information for the 1997 NMOC/SNMOC Monitoring Stations	2-15
 2-2   Descriptions of the 1997 NMOC/SNMOC Monitoring Locations	2-16
 2-3   Sampling Schedules Implemented During the 1997 NMOC/SNMOC Program 	2-18
 2-4   Summary of Sampling and Analytical Methods	2-19
 2-5   SNMOC Detection Limits	2-20
 2-6   VOC Detection Limits  	2-21
 2-7   Carbonyl Detection Limits 	2-22

 3-1   Sources of Meteorological Data, Ozone Data, and NOX Data for the 1997
      NMOC/SNMOC Statistical Analyses	3-10

4-1   Summary Statistics for Concentrations of Total NMOC  	4-18
4-2   Pearson Correlation Coefficients for NMOC Monitoring Data 	4-19
4-3   Dates with Highest Concentrations of Ozone, NMOC, NOA and NO,	4-20
4-4   Data Quality Parameters for Total NMOC Measurements	4-21

5-1   Summary Statistics for SNMOC Concentrations Measured at Fort
      Worth,  Texas (CAMS 13)  	5-39
5-2   Summary Statistics for SNMOC Concentrations Measured at Dallas,
      Texas (CAMS5) 	5-44
5-3   Summary Statistics for SNMOC Concentrations Measured at Dallas,
      Texas (DLTX)   	5-49
5-4   Summary Statistics for SNMOC Concentrations Measured at Juarez,
      Mexico, (JUMX)   	5-54
5-5   Summary Statistics for SNMOC Concentrations Measured at Newark,
      New Jersey (NWNJ)	5-59
5-6   SNMOC Compounds with Highest Geometric Mean Concentrations	5-64
5-7   Pearson Correlations Coefficients for SNMOC Monitoring Data  	5-65
5-8   Dates with Highest Concentrations of Ozone, NMOC, NOX and NO2	5-66
5-9   Completeness of SNMOC Monitoring	5-68
5-10  Data Quality Parameters for Total NMOC Measurements	5-69

6-1   Summary Statistics for VOC Concentrations Measured at Dallas,
      Texas (CAMS5) 	6-21
6-2   Summary Statistics for VOC Concentrations Measured at Dallas,
      Texas (DLTX)   	6-23
6-3   Summary Statistics for VOC Concentrations Measured at Fort Worth,
      Texas (CAMS 13)   	6-25
                                         IX

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                            LIST OF TABLES (continued)
6-4   Summary Statistics for VOC Concentrations Measured at Juarez,
      Mexico (JUMX)  	6-27
6-5   Summary Statistics for VOC Concentrations Measured at Newark,
      New Jersey (NWNJ)	6-29
6-6   Completeness of VOC Monitoring	6-31
6-7   Data Quality Parameters for VOC Measurements  	6-32

7-1   Summary Statistics for Carbonyl Concentrations Measured at Dallas,
      Texas (CAMS5)  	7-7
7-2   Summary Statistics for Carbonyl Concentrations Measured at Fort
      Worth, Texas (CAMS13)  	7-8
7-3   Summary Statistics for Carbonyl Concentrations Measured at Dallas,
      Texas (DLTX)    	7-9
7-4   Summary Statistics for Carbonyl Concentrations Measured at Juarez,
      Mexico (JUMX)  	:	7-10
7-5   Summary Statistics for Carbonyl Concentrations Measured at Newark,
      New Jersey (NWNJ)	7-11
7-6   Data Quality Parameters for Carbonyl Measurements 	7-12

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                            LIST OF ABBREVIATIONS
AIRS        Aerometric Information and Retrieval System
AQS         Air Quality Subsystem (of the Aerometric Information and RetrievaJ System)
BTEX       benzene, toluene, ethylbenzene, and xylene (o-, m-, andp-xylene)
EPA         U.S. Environmental Protection Agency
FID         flame ionization detection
GC          gas chromatography
HPLC       high-performance liquid chromatography
mph         miles per hour
MSD        mass selective detection
NAAQS      national ambient air quality standard
ND          nondetect
NJDEP       New Jersey Department of Environmental Protection
NYSDEC    New York State Department of Environmental Conservation
PDFID       preconcentration direct flame ionization detection
ppbC        parts per billion (by volume, on a carbon basis)
ppbv         parts per billion (by volume)
RPD         relative percent difference
SNMOC      speciated nonmethane organic compounds
TNRCC      Texas Natural Resources  Conservation Commission
total NMOC  total nonmethane organic compounds
TRI          Toxics Release Inventory
UV          ultraviolet
VOC         volatile organic compounds
Monitoring Stations

CAMS5      Dallas, Texas (1)
CAMS 13     Fort Worth, Texas
DLTX       Dallas, Texas (2)
JUMX       Juarez, Mexico
LINY        Long Island, New York
NWNJ       Newark, New Jersey
                                        XI

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                                ABOUT THIS REPORT
      This report presents the results of ambient air monitoring conducted in 1997 as part of the
Nonmethane Organic Compounds (NMOC) and Speciated Nonmethane Organic Compounds
(SNMOC) monitoring program—a program designed to characterize the magnitude and
composition of selected air pollution components that affect ozone formation processes.  During
the summer of 1997, ambient air samples were collected between 6:00 a.m. and 9:00 a.m., local
time, at six monitoring locations in three metropolitan areas. Depending on options selected by
sponsoring agencies, the samples were analyzed for NMOC, SNMOC, volatile organic
compounds (VOC), carbonyls, or some combination of these categories. Overall, nearly 50,000
ambient air concentrations were measured during the 1997 program. This report not only
summarizes this large amount of air monitoring data, but includes a series of statistical and
numerical analyses to identify notable air quality trends. To provide sponsoring agencies a
different perspective on the air monitoring results, most of the analyses in this report (e.g.,
comparisons to selected meteorological conditions and comparisons to concentrations of ozone
and nitrogen oxides) are different from those documented in previous  NMOC/SNMOC reports.

      When reading this report, it is important to note that the 1997 NMOC/SNMOC monitoring
program only characterizes levels of air pollution at  six locations in three metropolitan areas.  Due
to spatial variations in emissions sources and meteorological conditions, data trends identified for
the six monitoring locations may not necessarily apply to other locations within these
metropolitan areas, let alone to other urban settings.  Further, though the NMOC/SNMOC
monitoring data are extensive and useful as inputs to regional ozone forecasting models, the
monitoring data alone are not sufficient for understanding how pollutants react and interact in the
atmosphere to form ozone. As a result, further research and data analyses on the monitoring
results are encouraged. To facilitate these ongoing research efforts, the NMOC/SNMOC
monitoring data have been made publicly available in electronic format from the Environmental
Protection Agency's Aerometric Information Retrieval System.

      The remainder of this report describes the goals of the NMOC/SNMOC monitoring
program, reviews the scope of the 1997 program, and summarizes and interprets ambient air
monitoring data collected in the summer of 1997. For a quick overview of the major findings of
this report, readers should refer to Section 4.4, Section 5.4, Section 6.4, and Section 7.4 for
summaries of the NMOC, SNMOC, VOC, and carbonyl monitoring, respectively. For the benefit
of sponsoring agencies, the final report for the 1998  NMOC/SNMOC program will focus almost
exclusively on how ambient air concentrations of selected pollutants have changed from year to
year—a topic that is not addressed in this report.
                                          Xlll

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1.0    Introduction
       The U.S. Environmental Protection Agency (EPA) requires state environmental agencies
to develop and implement plans to reduce ozone concentrations in areas that are not in attainment
with the ozone national ambient air quality standard (NAAQS). Implementing effective ozone
control strategies has proven to be a complicated task, largely because of the numerous variables
that affect ozone formation processes. To help state environmental agencies characterize some of
these variables, EPA sponsors the Nonmethane Organic Compounds (NMOC) and Speciated
Nonmethane Organic Compounds (SNMOC) Monitoring Program.  This program is designed to
measure ambient air concentrations of four classes of compounds that affect ozone formation:
total NMOC, SNMOC, volatile organic compounds (VOC), and carbonyls.  Since the program's
inception in 1984, many state agencies have participated in EPA's program  by installing air
monitoring stations within their jurisdictions.  This report summarizes and interprets results from
the 1997 NMOC/SNMOC Monitoring Program, which included up to 3 months of daily
measurements of ambient air quality in or near three metropolitan areas.

      This summary report provides a qualitative overview of air pollution at the
NMOC/SNMOC monitoring stations, as well as a quantitative analysis of the monitoring data and
several other factors that are known to affect ozone formation processes. So that new  and
historical data can easily be compared, the report presents descriptive summary statistics in a
format identical to that of previous NMOC/SNMOC reports. To offer greater insight into the
current data, however, much of the report focuses on topics that previous annual NMOC/SNMOC
reports have not addressed in detail, such as data correlations between concentrations of organic
compounds, ozone, and nitrogen oxides and selected meteorological conditions. These analyses
ultimately should help state environmental agencies better understand the complex interaction of
pollutants in ozone non-attainment areas.

      Although extensive, the analyses  in this report do not provide a comprehensive account of
all factors relevant to ozone formation. To characterize non-attainment areas more completely,
state environmental agencies should not only review air monitoring data, but also evaluate
                                          1-1

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emissions trends of ozone precursors and conduct computer simulations of atmospheric transport
of these emissions and photochemical reactions.  Therefore, even though this report thoroughly
characterizes the large volume of NMOC/SNMOC monitoring data, additional analyses should be
performed so that the many factors that affect ambient air quality can be fully appreciated. To
facilitate further analysis of the NMOC/SNMOC sampling results, the entire set of ambient air
monitoring data will be available on the Air Quality Subsystem (AQS) of the Aerometric
Information and Retrieval System (AIRS), an electronic database maintained by EPA.

       This report is organized into eight sections; Table 1-1 lists the contents of each report
section. Sections 2 and 3 present necessary background information on the monitoring program
and data analysis methodologies, and Sections 4 through 7 summarize and interpret the
monitoring data collected for total NMOC, SNMOC, VOC, and carbonyls.  All figures and tables
cited in the text appear at the end of their respective sections (figures first, followed by tables).
                                          1-2

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                                             1-3

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2.0    The 1997 NMOC/SNMOC Monitoring Program
       Because it is important to understand the scope of any air monitoring program before
interpreting trends and patterns in the corresponding results, this section presents relevant
background information for the  1997 NMOC/SNMOC program. This program included six
monitoring stations that collected 3-hour integrated samples of ambient air according to site-
specific schedules, roughly from June 1 to September 30, 1997. Depending on the monitoring
options that were selected for each station, air samples were analyzed for either total NMOC,
SNMOC and VOC, carbonyls, or some combination of these categories. The following
discussion describes in greater detail the monitoring locations, compounds selected for
monitoring, sampling schedules, and sampling and analytical methods of the program.

2.1    Monitoring Locations
       EPA sponsors the NMOC/SNMOC monitoring program with the intent of helping state
and local air pollution control agencies better understand how the composition of air pollution
affects the formation and transport of ozone within a given region.  Agencies can participate in
this program by working cooperatively with EPA to identify suitable monitoring locations, select
classes of compounds for monitoring, install ambient air monitoring equipment, and send
samples to a designated central laboratory for analysis. The participating agencies also must
contribute to the overall monitoring costs.

       Figure 2-1 shows the locations of the six 1997 NMOC/SNMOC monitoring stations and
lists their alphanumeric codes, which were assigned for purposes of tracking air samples from the
field to the laboratory. In addition to an alphanumeric code,  each location has a unique 9-digit
"AIRS Code" for purposes of logging  and indexing site descriptions and monitoring results in
EPA's AIRS database. For each monitoring location, Table 2-1 lists the alphanumeric codes, the
AIRS codes, and other site information described later in this section.

       The six stations participating in the 1997 program were located in three urban areas: the
Dallas-Fort Worth metropolitan area,  the El Paso-Juarez area, and the Newark-New York City
                                          2-1

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area. Not surprisingly, chemical concentrations measured during the 1997 NMOC/SNMOC
program varied significantly among, and even within, these metropolitan areas. As previous
NMOC/SNMOC reports have concluded, the proximity of the monitoring locations to different
emissions sources, especially heavily traveled roadways, likely explains the observed spatial
variations in ambient air quality.

The maps in Figures 2-2 through 2-7 and the site descriptions in Table 2-2 provide
detailed information on the surroundings at the six NMOC/SNMOC monitoring locations. The
maps illustrate that some monitors were located in primarily residential neighborhoods
(e.g., CAMS5 and CAMS 13), while others were located in more industrial areas (e.g., DLTX and
NWNJ). For each monitoring location, the text in Table 2-2 describes site characteristics that
may not be readily apparent from the maps. Analyses throughout this report refer to the various
site descriptions to explain trends and patterns in the NMOC/SNMOC ambient air monitoring
data.

At every NMOC/SNMOC monitoring location, the air sampling equipment was installed
in a small enclosure—usually a trailer or a shed—with sampling inlet probes protruding through
the roof. Using this common setup, every NMOC/SNMOC monitor sampled ambient air at
heights approximately 5 to 20 feet above local ground level.

2.2 Compounds Selected for Monitoring
The agencies that sponsor monitoring locations decide whether their respective stations
measure total NMOC, SNMOC and VOC, carbonyls, or some combination of these categories.
These categories differ from previous monitoring options in one important regard: in previous
years, air samples had to be analyzed using two separate methods to characterize levels of
SNMOC and VOC. During the 1997 program, however, improved laboratory analytical
techniques allowed a single air sample to be concurrently analyzed for both groups of
compounds. With this improvement, the program now provides SNMOC and VOC ambient air
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monitoring data at a cost only marginally higher than that of collecting SNMOC data alone.
Section 2.4 describes the specific improvements to the analytical methods in greater detail.

Table 2-1 indicates the compound groups that sponsoring agencies selected for
monitoring at each of the six stations. Every station at least collected samples that were analyzed
for either total NMOC or SNMOC—the two categories most commonly used as inputs to ozone
forecasting models. Accordingly, most of the interpretations and analyses in this report focus on
these two compound categories, with a lesser emphasis placed on evaluating trends and patterns
among the VOC and carbonyls air monitoring data. Section 2.3 indicates how frequently the
compounds were measured at each site, and Section 2.4 lists the compounds identified by the
four different monitoring options.

2.3 Monitoring Schedules
In addition to selecting locations and compounds for monitoring, the agencies that
sponsor NMOC/SNMOC monitoring locations also determine sampling schedules. Tables 2-1
and 2-3 summarize the sampling schedules and sampling frequencies implemented at the six
participating locations. Although the sampling schedules vary across the different compound
categories and monitoring locations, there are some common scheduling trends. For instance,
every station conducted at least some daily sampling, and every station that measured carbonyls
collected fewer than 10 samples. As Section 3.2 indicates, the sampling frequency is an
important consideration for data analyses, mainly because a large number of samples are usually
needed to observe statistically significant trends and patterns.

Despite the differences in sampling frequencies, the sampling schedules implemented at
all 15 monitoring locations have three features in common:

• On each sampling day, ambient air is continuously sampled for 3 hours, starting at
6:00 a.m., local standard time.
• Sampling is generally performed between June 1 and September 30.

2-3

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• Roughly 10 percent of all samples were collected in duplicate and analyzed in
replicate.

EPA requires stations to adhere to these three features because (1) many ozone transport
models require ambient concentrations measured between 6:00 a.m. and 9:00 a.m. as an input;
(2) ambient air concentrations of ozone are known to peak during the summer months, when
photochemical reactivity also peaks; and (3) duplicate and replicate data are critical for
evaluating the precision of ambient air monitoring data.

2.4 Sampling and Analytical Methods
Sampling and analytical methods used in monitoring programs ultimately determine what
compounds can be identified in air samples, and at what levels. During the 1997
NMOC/SNMOC program, different sampling and analytical methods were used to measure air
concentrations of total NMOC, SNMOC and VOC, and carbonyls. EPA has thoroughly tested
each of these methods, and field engineers for this air monitoring program strictly followed the
documented monitoring procedures. The final report for the 1996 NMOC/SNMOC program
described these sampling and analytical methods in detail (ERG, 1997b), and the following
subsections briefly highlight salient features of the four methods. For quick reference, Table 2-4
summarizes the general attributes (detection limits, units of measurement, etc.) of these methods.

2.4.1 Total NMOC
Ambient air concentrations of total nonmethane organic compounds were measured using
EPA Compendium Method TO-12 (USEPA, 1988). The TO-12 protocol specifies steps for
collecting 3-hour integrated samples of ambient air in passivated stainless steel canisters, which
are then analyzed by using cryogenic traps and flame ionization detection (FID). This method
cannot distinguish different hydrocarbon species; rather, the analysis measures only the total
amount of nonmethane hydrocarbons in the air sample, or total NMOC. Concentrations are
reported in units of parts per billion on a carbon basis (ppbC) (see sidebar, "The Importance of
Units of Measurement") and the detection limit for this method is approximately 5 ppbC.
2-4

-------
The Importance of Units of Measurement

Units of measurement express results of scientific analyses in standard formats. The units
used in a particular study, however, depend largely on the conventions followed by other
researchers within a particular scientific field. In ambient air monitoring efforts, for example,
scientists typically report air concentrations using several different units of measurement, such
as parts per billion on a volume basis (ppbv) and parts per billion on a carbon basis (ppbC).
This report adopts the conventions EPA (USEPA, 1988, 1989) and other air monitoring
researchers employ, expressing NMOC and SNMOC monitoring data in units of ppbC and
expressing VOC and carbonyl monitoring data in units of ppbv. For a given compound,
concentrations can be converted between these different units of measurement according to the
following equation:

Concentration (ppbC) = Concentration (ppbv) x Number of Carbons

As an example, benzene (C6H6) has six carbon atoms. Therefore, by definition, a
concentration of benzene of 6.0 ppbC also equals a concentration of benzene of 1.0 ppbv.
Because failure to consider subtle differences in units of measurement can result in significant
misinterpretations of ambient air monitoring results, readers of this report should pay
particular attention to the units of measurement, especially when comparing the monitoring
results to those of other studies. To avoid any confusion, every table and figure in this report
that presents monitoring results clearly indicates the corresponding units of measurement.
2.4.2 SNMOC

Ambient air concentrations of SNMOC were measured according to EPA's research

protocol "Determination of C; through C12 Ambient Air Hydrocarbons in 39 U.S. Cities from
1984 through 1986" (USEPA. 1989). Like the NMOC sampling and analytical method, the

SNMOC method requires collecting ambient air in passivated stainless steel canisters. Unlike
the NMOC approach, the SNMOC analytical method involves passing the collected samples

through a gas chromatography (GC) column that separates individual hydrocarbon species before
measuring concentrations with the FED. Because of this additional step, the FID can measure

ambient air concentrations of individual organic compounds, as well as measuring total organic

compounds. The GC column used during this program distinguishes 80 different compounds,

which are listed, along with their estimated detection limits, in Table 2-5 (see sidebar,
2-5

-------
Appreciating Detection Limits
The detection limit of an analytical method plays an important role in interpreting ambient air
monitoring data. By definition, detection limits represent the lowest levels at which laboratory
equipment can reliably quantify concentrations of selected compounds to a specific confidence
level. Therefore, when samples contain concentrations of chemicals at levels below those
chemicals' detection limits, multiple analyses of the same sample may lead to a wide range of
results, including highly variable concentrations and "nondetect" observations. To interpret air
monitoring data in the proper context, data analysts should understand that the variability of
analytical methods increases as sample concentrations decrease to trace levels. Because some
of the SNMOC, VOC, and carbonyl compounds have numerous nondetects, the significance of
appreciating detection limits is revisited throughout this report.
For reference, the estimated detection limits for the NMOC, SNMOC, VOC, and carbonyl
analytical methods were all determined according to EPA guidance in "Definition and
Procedure for the Determination of the Method Detection Limit" (FR, 1984).

"Appreciating Detection Limits"). Like the NMOC concentrations, the SNMOC concentrations
are expressed in units of ppbC—a convention typically followed for measurements involving
FID.
It should be noted that the GC column used to analyze samples from the 1997
NMOC/SNMOC program was capable of differentiating concentrations of acetylene from
concentrations of ethane, and the GC column used previously could not separate these
compounds.

2.4.3 VOC
Ambient air concentrations of selected VOC were measured using EPA Compendium
Method TO-14 (USEPA, 1984a). Sampling for this method follows the same protocol as the
NMOC and SNMOC methods: ambient air is collected in the field in passivated stainless steel
canisters. The analytical method for VOC differs from the other methods, as the sampled air
passes through a gas chromatography column with mass selective detection and flame ionization
detection (GC/MSD-FID). This particular combination of analytical techniques enables
measurement of concentrations of 38 different organic compounds, many of which (such as
2-6

-------
halogenated hydrocarbons) cannot be measured using the other sampling and analytical methods.
Table 2-6 lists these 38 compounds along with their respective detection limits. All
concentrations of VOC are reported in units of ppbv.

During the 1997 NMOC/SNMOC program, the laboratory analytical equipment for the
SNMOC and VOC methods was combined. With this improvement, technicians could
simultaneously analyze a single ambient air sample for both the 80 target SNMOC and the
38 target VOC. Therefore, the 1997 NMOC/SNMOC program has essentially three monitoring
options—NMOC, SNMOC and VOC, and carbonyls.

2.4.4 Carbonyls
Following the specifications of EPA Compendium Method TO-11 (USEPA, 1984b),
carbonyl compounds were measured by passing ambient air over silica gel cartridges coated with
2,4-dinitrophenylhydrazine (DNPH), a compound known to react reversibly with many aldehydes
and ketones. For chemical analysis, sampling cartridges were eluted with acetonitrile, which
liberates hydrazine derivatives of the aldehydes and ketones collected from the ambient air by the
DNPH-coated silica gel matrix. Analyzing the acetonitrile solution by high-performance liquid
chromatography (HPLC) with ultraviolet (UV) detection then determines the amount of
carbonyls present in the original air sample. This procedure currently detects 16 different
carbonyl compounds. Table 2-7 lists these compounds and their corresponding detection limits.
2-7

-------

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                  2-12

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                                     Table 2-3
       Sampling Schedules Implemented During the 1997 NMOC/SNMOC Program
 Monitoring
   Option
   Monitoring
     Location
                 Sampling Schedules
   NMOC
Long Island, NY
Newark, NJ
Both sites sampled NMOC every weekday of the
monitoring program, except holidays.
  SNMOC
             Dallas (1), TX
             Dallas (2), TX
             Fort Worth, TX
                  These sites sampled SNMOC every weekday of the
                  monitoring program, except holidays.  All samples were
                  analyzed for both the 80 target SNMOC and the 38 target
                  VOC.
Juarez, Mexico
This site sampled SNMOC every weekday from July 15 to
September 30, 1997. All samples were analyzed for both
the target SNMOC and VOC.
             Newark, NJ
                  This site sampled SNMOC roughly once a week from
                  July 15 to September 12, 1997. Nine samples were
                  collected, all of which were analyzed for both SNMOC and
                  VOC.
  Carbonyl
Dallas (1), TX
Dallas (2), TX
Fort Worth, TX
Juarez, Mexico
Newark, NJ
These sites collected between seven and nine carbonyl
samples over the course of the entire program, according to
site-specific schedules.
Note:  Unless otherwise noted, "the entire program" refers to June 1 through September 30, 1997.
                                        2-18
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                                       Table 2-5
                               SNMOC Detection Limits
Compound
Acetylene
Benzene
1 ,3-Butadiene
n-Butane
cis-2-Butene
rrans-2-Butene
Cyclohexane
Cyclopentane
Cyclopentene
n-Decane
1-Decene
/w-Diethylbenzene
p-Diethylbenzene
2,2-Dimethylbutane
2.3-Dimethylbutane
2,3-Dimethylpentane
2 .4-Dimethy Ipentane
n-Dodecane
1 -Dodecene
Ethane
2-Ethyl-l-Butene
Ethylbenzene
Ethylene
m-Ethyltoluene
o-Ethyltoluene
/7-Ethyltoluene
H-Heptane
1 -Heptene
w-Hexane
1 -Hexene
cw-2-Hexene
rrans-2-Hexene
Isobutane
Isobutene/1 -Butene
Isopentane
Isoprene
Isopropylbenzene
2-Methyl-l -Butene
2-Methyl-2-Butene
Detection Limit
(ppbC)
0.62
2.13
0.20
0.20
0.20
0.20
2.13
0.37
0.37
4.60
4.60
4.60
4.60
2.13
2.13
3.72
3.72
4.60
4.60
0.62
2.13
4.73
0.62
4.60
4.60
4.60
3.72
3.72
2.13
2.13
2.13
2.13
0.20
0.20
0.37
0.37
4.60
0.37
0.37
Compound
3-Methyl-l -Butene
Methylcyclohexane
Methylcyclopentane
2-Methylheptane '
3-Methylheptane
2-Methylhexane
3-Methylhexane
2-Methylpentane
3 -Methy Ipentane
2-Methyl-l -Pen tene
4-Methyl-l-Pentene
H-Nonane
1 -Nonene
n-Octane
1-Octene
n-Pentane
1-Pentene
c/j-2-Pentene
rrans-2-Pentene
a-Pinene
fc-Pinene
Propane
n-Propylbenzene
Propylene
Propyne
Styrene
Toluene
n-Tridecane
1-Tridecene
1 ,2,3-Trimethylbenzene
1 ,2,4-Trimethylbenzene
1 ,3,5-Trimethylbenzene
2,2,3-Trimethylpentane
2,2,4-Trimethylpentane
2,3,4-Trimethylpentane
n-Undecane
1-Undecene
m,p-Xylene
o-Xylene
Detection Limit
(ppbC)
0.37
3.72
2.13
4.73
4.73
3.72
3.72
2.13
2.13
2.13
2.13
4.60
4.60
4.73
4.73
0.37
0.37
0.37
0.37
4.60
4.60
0.31
4.60
0.31
0.31
4.73
3.72
4.60
4.60
4.60
4.60
4.60
4.73
4.73
4.73
4.60
4.60
4.73
4.73
Reference: FR, 1984.
                                         2-20
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                                 Table 2-6
                           VOC Detection Limits
               Compound	Detection Limit (ppbv)
 Acetylene                                           0.10
 Benzene                                            0.07
 Bromochloromethane                                0.09
 Bromodichloromethane                               0.05
 Bromoform                                         0.15
 Bromomethane                                      0.14
 1,3-Butadiene                                       0.09
 Carbon tetrachloride                                 0.05
 Chlorobenzene                                      0.07
 Chloroethane                                        0.06
 Chloroform                                         0.06
 Chloromethane                                      0.13
 Chloroprene                                         0.10
 Dibromochloromethane                               0.05
 m-Dichlorobenzene                                  0.15
 o-Dichlorobenzene                                   0.16
 p-Dichlorobenzene                                   0.13
 1,1 -Dichloroethane                                   0.06
 1,2-Dichloroethane                                   0.26
 trans-1,2-Dichloroethylene                            0.22
 1,2-Dichloropropane                                 0.04
 cis-1,3-Dichloropropylene                            0.05
 fran5-l,3-Dichloropropylene                          0.08
 Ethylbenzene                                        0.12
 Methylene chloride                                   0.09
 ^-Octane                                            0.21
 Propylene                                           0.10
 Styrene                                             0.10
 1,1,2,2-Tetrachloroethane                             0.16
 Tetrachloroethylene                                  0.22
 Toluene                                             0.21
 1,1,1-Trichloroethane                                0.33
 1,1,2-Trichloroethane                                0.05
 Trichloroethylene                                    0.04
 Vinyl chloride                                       0.06
 m.p-Xylene                                          0.11
 o-Xvlene	OJD
Reference: FR, 1984


                                   2-21
-------
                                        Table 2-7
                                Carbonyl Detection Limits
                      Compound	Detection Limit (ppbv)
        Acetaldehyde                                        0.008
        Acetone                                             0.005
        Acrolein                                             0.010
        Benzaldehyde                                        0.005
        Butyr/Isobutyraldehyde                                0.009
        Crotonaldehyde                                      0.008
        2,5-Dimethylbenzaldehyde                            0.010
        Formaldehyde                                        0.006
        Hexanaldehyde                                       0.008
        Isovaleraldehyde                                      0.020
        Propionaldehyde                                      0.004
        Tolualdehydes                                        0.019
        Valeraldehvde	0.013
Note:   The carbonyl detection limit varies with the volume of ambient air drawn through the sampling
       apparatus. The detection limits in this table are based on a sample volume of 1,000 liters of ambient
       air.

Reference:  FR, 1984.
                                          2-22
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 3.0    Data Analysis Methodology
       This section presents the methodology used to summarize and interpret the 1997
 NMOC/SNMOC ambient air monitoring data for this report, including both data analysis
 techniques that have been used in previous NMOC/SNMOC reports (e.g., data summary
 parameters) and techniques that have not been used previously (e.g., comparisons between
 NMOC/SNMOC measurements and ambient air concentrations of ozone).  In general, three
 categories of analyses have been used to identify notable data trends and patterns:
              Data summary parameters, to provide a succinct overview of the monitoring data
              (see Section 3.1)
              Analyses and interpretations, to identify significant spatial variations, temporal
              variations, and statistical correlations (see Section 3.2)
              Data quality parameters, to comment on the validity of the interpretations (see
              Section 3.3)
       The remainder of this section describes these three categories of data analysis
methodology.  Sections 4 through 7 then use this methodology to thoroughly characterize the
NMOC, SNMOC. VOC, and carbonyl monitoring data, respectively.

3.1    Data Summary Parameters
       Since previous NMOC/SNMOC reports describe in detail the four parameters that have
been used to summarize this program's monitoring data, the following discussion briefly reviews
how these parameters efficiently characterize the results of extensive ambient air monitoring
studies. The four summary parameters—prevalence, concentration range, central tendency, and
variability—are used to provide a complete but succinct overview of the nearly 50,000 ambient
air concentrations that were measured during the 1997 NMOC/SNMOC program.  Sections 4
through 7 present these summary parameters in a series of tables, one for each monitoring
location for each category of compounds. Brief definitions and descriptions of these summary
parameters follow:
                                          3-1
-------
       •      Prevalence of air monitoring data refers to the frequency with which compounds,
             or groups of compounds, are detected; it is typically expressed as a percentage
             (e.g., a compound detected in 15 of 20 samples has a prevalence of 75 percent).
             Compounds that are never detected have a prevalence of 0 percent, and those that
             are always detected have a prevalence of 100 percent. Because sampling and
             analytical methods cannot reliably quantify concentrations of compounds at levels
             near their detection limits, summary statistics for compounds with low prevalence
             values should be interpreted with caution.  Compounds  with a prevalence of zero
             may still be present in ambient air, but at levels below the sensitivity of the
             corresponding sampling and analytical methods.

       •      The concentration range of ambient air monitoring data refers to the span of
             measured concentrations, from lowest to highest. Because the NMOC/SNMOC
             program only measures 3-hour average concentrations during the summer months,
             the lowest and highest concentrations may not be comparable to those from
             monitoring programs with different sampling durations  and schedules.  Ambient
             air concentrations of hydrocarbons, VOC, and carbonyls may rise to higher levels
             during other times of the day and other times of the year.

       •      The central tendency of air monitoring data gives a sense of the long-term average
             ambient air concentrations. This report uses medians, arithmetic means, and
             geometric means to characterize the central tendencies of concentration
             distributions. Previous NMOC/SNMOC reports have explained the differences
             between these measures of central  tendency.  The central tendencies in this report
             are based only on ambient air concentrations sampled during the summer of  1997.
             Because ambient air concentrations of compounds may  increase or decrease
             during the colder winter months, the central tendencies  presented in this report
             may not be comparable to those calculated from annual air monitoring efforts.

       •      Variability in ambient air monitoring data indicates the  extent to which
             concentrations of certain compounds fluctuate with respect to  the central
             tendency. This report characterizes data variability using standard deviations and
             coefficients of variation. The standard deviation is a commonly used statistical
             parameter that provides an absolute indicator of variability, and the coefficient of
             variation (calculated by dividing the standard deviation  by the arithmetic mean)
             offers a relative indicator of variability.  The coefficient of variation is better
             suited for comparing variability across data distributions for different sites and
             compounds.

       All data summary parameters presented in this report were calculated from a database of

processed 1997 NMOC/SNMOC ambient air monitoring data.  This database was generated by
                                          3-2
-------
 manipulating the raw monitoring data to assign all nondetect observations a concentration equal
 to one-half the corresponding detection limit. The results of all duplicate sampling events and
 replicate laboratory analyses were averaged so that only one concentration was considered for
 each compound for each sampling date. These data processing steps are identical to those
 described in the  1996 NMOC/SNMOC final report.

 3.2    Analyses and Interpretations
       To supplement the trends indicated by the data summary parameters, Sections 4 through 7
 also include a series of analyses and interpretations that attempt to explain why measured levels
 of air pollution vary from one monitoring location to the next and from one month to the next.
 These spatial and temporal variations may ultimately provide state and local agencies greater
 insight into the factors that affect ozone formation processes most significantly. The following
 subsections describe the methods used to identify and interpret the spatial and temporal
 variations in the  1997 NMOC/SNMOC monitoring results.

       3.2.1  Composition of Air Samples
       Like the magnitude of air pollution, the composition varies from one location to the next.
The following discussion explains how the composition of air pollution will be used to
understand and appreciate the sources that contribute to levels of air pollution:
       •      Composition of alkanes, olefins, and aromatics.  This analysis divides the overall
              SNMOC monitoring results into contributions from alkanes, olefins, and aromatic
              compounds.  Such analyses are useful to understanding ozone formation
              processes, because current research shows that olefinic and aromatic compounds
              are significantly more reactive in air than most alkanes (Carter, 1994). Knowing
              the relative abundances of these three classes of hydrocarbons, state
              environmental agencies can better focus air pollution prevention policies
              specifically on compound categories that have the greatest impact on air quality.
              This data analysis approach is used only in Section 5, because the SNMOC
              analytical method quantifies concentrations of the most hydrocarbon compounds.
       •      Ratios of ambient air concentrations of selected aromatic hydrocarbons.  This
              analysis compares ratios of concentrations of benzene, toluene, and xylene
                                           3-3
-------
              isomers to concentrations of ethylbenzene.  These aromatic compounds are
              commonly referred to as BTEX compounds (i.e., benzene, toluene, ethylbenzene,
              and xylene compounds). Previous ambient air monitoring studies of motor
              vehicle emissions have reported relatively constant concentration ratios for these
              compounds (Conner, Lonneman, Seila, 1995). In this report, BTEX ratios are
              used as an indicator of the extent to which emissions from motor vehicles affect
              ambient air concentrations at the NMOC/SNMOC monitoring stations. Only
              Sections 5 and 6 use this data analysis approach, since only the SNMOC and VOC
              analytical methods can quantify concentrations of individual BTEX compounds.


       When evaluating the composition of the SNMOC and VOC samples, it is important to

note that "composition" indicates only the relative magnitude of a given compound among the

80 target SNMOC or the 38 target VOC. Because these analytical methods cannot quantify

concentrations of many other common air pollutants (e.g.,  inorganic acids), the "compositions"

in these analyses are only expressed relative to the list of target compounds and are not

necessarily equivalent to actual compositions of ambient air.


       3.2.2   Statistical Analyses
       Many of the data analyses in Sections 4 through 6 attempt to quantify the extent to which

two parameters are related to each other. For example, Section 4 describes how wind speed and

temperature appear to affect concentrations of total NMOC.  The following discussion describes

how Sections 4 through 6 use  Pearson correlation coefficients to measure the degree of
correlation between two variables.1


       By definition, Pearson correlation coefficients always lie between -1  and 1. A correlation
coefficient of -1 indicates a perfectly "negative" relationship, and a correlation coefficient of 1
indicates a perfectly "positive" relationship.  Negative relationships occur when increases in the

magnitude of one variable are associated with proportionate decreases in the magnitude of the

other variable, and vice versa.  On the other  hand, positive relationships occur when the

magnitudes of two variables both increase and both decrease proportionately. Data that are
        Pearson correlation coefficients are commonly used as a measure of correlation. Details regarding their
calculation can be found in most introductory statistics texts.

                                           3-4
-------
completely uncorrelated have Pearson correlation coefficients of zero. Therefore, the sign
(positive or negative) and the magnitude of Pearson correlation coefficients indicate the direction
and strength, respectively, of data correlations.

       Pearson correlation coefficients characterize the extent to which variables are related in a
linear fashion, and the coefficients calculated in this report are only for pairwise correlations
(i.e., correlations between two variables).  As a result, the statistical analyses do not characterize
potential nonlinear or multivariate relationships that may be relevant to ozone formation
processes.  Nonetheless, Sections 4 through 6 use the correlation coefficients to draw qualitative
conclusions regarding how different air quality  and meteorological parameters relate to each
other.  Section 7 does not  present Pearson correlation coefficients, because too few  carbonyl
samples were  collected to generate statistically significant findings.

       3.2.3   Comparison to Selected Meteorological Parameters
       Because local meteorological conditions largely determine how rapidly photochemical
reactions consume and produce airborne pollutants and how quickly emissions disperse, Sections
4 through 6 analyze how wind speed, wind direction, temperature, relative humidity, and
precipitation relate to the NMOC, SNMOC, and VOC air monitoring data.  These sections use
Pearson correlation coefficients and plot distributions to provide insight into which  variables are
most closely linked to air quality data. For each monitoring station, meteorological  data were
obtained from the nearest  meteorological station that submits daily summary reports to the
National Climatic Data Center. Table 3-1  lists the source of meteorological data for each of the
1997 NMOC/SNMOC ambient air monitoring stations.

       This report does not completely characterize how meteorological parameters relate to air
quality. More sophisticated analyses, such as detailed atmospheric dispersion modeling for every
monitoring location,  are beyond the scope of the current work. Further, this report does not
address other meteorological parameters (such as mixing heights and upper atmosphere wind
patterns) that are known to affect long-range transport of ozone or ozone precursors. These
                                            3-5
-------
additional parameters were not readily available for every monitoring station at the writing of this

report.


       3.2.4   Comparison to Concentrations of Ozone and Nitrogen Oxides (NOX)

       EPA and many research scientists have long known that a complex series of
photochemical reactions involving airborne hydrocarbons and NOX form ozone in the

stratosphere (i.e., the lowest layer of the atmosphere,  or the air that humans breathe) (USEPA.

1998). To provide state environmental agencies greater insight into the relationship between

ambient air concentrations of hydrocarbons, ozone, and NOX, Sections 4 and 5 of this report use

two data analysis techniques to assess concentrations of these compounds:


       •       First, the sections present matrices of Pearson correlation coefficients for the
              measured NMOC or SNMOC concentrations, daily peak NOX concentrations, and
              daily peak ozone concentrations. These calculations were performed to determine
              whether ambient air concentrations of the different pollutants tend to rise and fall
              on the same days. Readers should  note that Sections 4 and 5 discuss important
              limitations to these analyses.

       •       Second, the sections compare peak concentrations of ozone to ratios of NMOC to
              NOX concentrations. Previous studies  have shown that NMOC:NOX ratios may
              correlate better with maximum ozone concentrations than do the concentrations of
              either NMOC or NOX (USEPA, 1996). These studies also have used analyses of
              these ratios, along with several other corroborative analyses, to predict the
              effectiveness of hydrocarbon controls  and NOX controls  at reducing levels of
              ozone.

       Although general conclusions are drawn from the analyses described above, readers

should note that ozone formation processes are extremely complex, and much more sophisticated
analyses are needed  to fully understand photochemical smog in urban areas.  Examples of such

additional analyses include rigorous regional photochemical modeling efforts, compilation of

comprehensive emissions inventories, and evaluations of long-range transport and vertical
mixing mechanisms.
                                          3-6
-------
       Table 3-1 lists the sources of ozone and NOX monitoring data for the analyses in Sections
4 and 5.  For each NMOC/SNMOC monitoring station, this report considers ozone and NOX
monitoring data from the closest ambient air monitoring station that submitted 1997 air quality
results to EPA's AIRS database. For some sites (CAMS5, CAMS 13, and DLTX), ozone and
NOX monitoring data were collected at exactly the same location as the NMOC/SNMOC data.
For the other sites (JUMX, LINY, and NWNJ), ozone or NOX monitoring data from nearby
stations are used in the data analyses, because these pollutants either were not measured at the
NMOC/SNMOC monitoring station or their monitoring results are not currently listed in AIRS.

Note:  All ozone and NOX monitoring data considered in this report were collected under
       programs other than the NMOC/SNMOC Monitoring Program. The precision and
       accuracy of these ozone and NOx monitoring data are not known.

       3.2.5   Temporal Variations
       Because the NMOC/SNMOC monitoring stations sample ambient air only from 6:00 to
9:00 a.m. during the summer months, the monitoring data in this report are insufficient to
evaluate diurnal or seasonal changes in air quality. Nonetheless, these data are useful for
considering changes in air quality from one summer month to the next. Further, since several of
the current monitoring stations participated in previous NMOC/SNMOC monitoring programs,
the monitoring data also can be used to evaluate how air quality changes on longer time scales.
Sections 4 through 6 focus strictly on monthly variations in measured air concentrations. Section
7 does not consider any temporal variations, however, because stations do not collect enough
carbonyl  samples to conduct a statistically meaningful analysis of monthly variations.

       Although this report will not consider annual variations, readers should note that the final
report for the 1998 NMOC/SNMOC monitoring program will focus almost exclusively on
analyzing temporal variations—particularly annual variations—for every monitoring location,
and the report will place lesser emphasis on evaluating spatial variations. Such  analyses should
                                          3-7
-------
help participating agencies assess the effectiveness of relevant pollution control strategies on
long-term changes in air quality.

3.3    Data Quality Parameters
       To characterize the quality of the 1997 NMOC/SNMOC monitoring measurements,
Sections 4 through 7 review the completeness, precision, and accuracy of the corresponding
sampling and analytical methods.  Because the final report for the 1996 program thoroughly
describes these data quality parameters, the following paragraphs only define them and briefly
discuss their significance.

       3.3.1  Completeness
       The completeness of ambient air monitoring programs refers to the fraction of attempted
sampling events that yields valid results (i.e., either quantified concentrations or nondetects).
Due to a variety of sampling or analytical errors, not all the samples for the various monitoring
options were collected and analyzed as scheduled.  Although completeness data do not quantify
the precision or accuracy of the monitoring methods, they do indicate how efficiently samples
were collected and handled during the program. Coordinators of the SNMOC monitoring
program generally strive for program completeness greater than 90 percent. Sections 4 through 6
present completeness data for NMOC, SNMOC, and VOC sampling; Section 7 does not present
completeness results because the carbonyl monitoring option involves collecting and analyzing
air samples on fewer than 10 sampling dates.

       3.3.2  Precision
       In the context of ambient air monitoring, precision refers to the agreement between
independent air sampling measurements performed according to identical protocols and
procedures.  More specifically, precision measures the variability observed upon duplicate
collection or repeated analysis of ambient air samples. This report compares concentrations from
replicate analyses to quantify "analytical precision" and concentrations from duplicate samples to
quantify "sampling precision." For any pair of duplicate samples or replicate analyses, precision
                                           3-8
-------
is quantified by computing a relative percent difference (RPD), which is defined and described in
detail in previous NMOC/SNMOC reports.  As the earlier reports explain, highly precise ambient
air monitoring studies have lower RPDs, while highly imprecise or variable studies have higher
RPDs.  Analytical methods for most ambient air monitoring methods should have RPDs of 25
percent or less. Sections 4 through 7 present precision data for the four corresponding
monitoring methods.

       3.3.3  Accuracy
       Accuracy of monitoring programs indicates the extent to which measured concentrations
represent their corresponding "true" or "actual" values. Highly accurate air sampling and
analytical methods generally measure concentrations in very close agreement to actual ambient
levels. Because no external audit samples were provided during the 1997 NMOC/SNMOC
program, it is impossible to quantify the accuracy of the air monitoring data.  However, since all
field sampling staff and laboratory analysts strictly followed established quality control and
quality assurance guidelines, it is believed that all samples were collected and analyzed according
to the specifications of the respective monitoring methods.
                                           3-9
-------
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                                          3-10
-------
4.0    Analysis of Total N7MOC Monitoring Results
       This section summarizes and interprets the total NMOC monitoring data collected at
Long Island and Newark during the 1997 NMOC/SNMOC program.  As Section 2.4 explained,
the total NMOC sampling and analytical method detects a wide range of organic compounds
(e.g., alkanes, olefins, aromatics, oxygenates, halogenated hydrocarbons), thus measuring overall
levels of the air pollution that is known to affect ozone formation processes. This method does
not characterize total levels of air pollution, because the method does not detect common air
pollutants such as inorganic acids, particulate matter, and heavier organic compounds. The
following discussion uses the data analysis methodology presented in Section 3 to identify
noteworthy trends in the NMOC monitoring data.  For quick reference, Section 4.4 reviews the
most significant findings.

Note:  The SNMOC analytical method also measures the concentration of total NMOC.  Section
       5.1 summarizes the total NMOC concentrations that were measured at the Dallas, Fort
       Worth,  and Juarez, monitoring stations by the SNMOC analytical method.

4.1    Data Summary Tables
       Using the data summary parameters discussed in Section 3.1, Table 4-1 summarizes the
total NMOC monitoring results collected  at the Long Island and Newark monitoring stations.
The table also presents quartiles of the NMOC concentration distributions measured at these
stations. An overview of these summary parameters follows:
             Prevalence. Every total NMOC concentration measured during the 1997 program
             was at least an order of magnitude greater than the estimated method detection
             limit, 0.005 ppmC (or 5 ppbC).  Because measurement variability of air
             monitoring methods is typically lowest for concentrations significantly greater
             than their detection  limits, the NMOC results are expected to be highly precise.
             Section 4.3 confirms this hypothesis.
             Concentration range.  According to Table 4-1, NMOC concentrations at Long
             Island during the 1997 program ranged from 0.054 ppmC to 0.898 ppmC, and at
             Newark from 0.086 ppmC to 2.139 ppmC.  The quartiles of the concentration
                                          4-1
-------
              distributions suggest that the entire distribution at Newark was roughly twice as
              high as that for Long Island (i.e., the 25th, 50th, and 75th percentile
              concentrations for the two sites all differed by approximately a factor of two). At
              both sites, the maximum concentration is at least 30 percent higher than the
              second highest concentration, suggesting that the peak concentrations shown in
              Table 4-1 probably represent air pollution "episodes," as opposed to regularly
              occurring events. Only three NMOC concentrations at Newark—2.139 ppmC on
              August 19, 1.404 ppmC on June 25, and 1.054 on September 17—exceeded the
              maximum concentration measured at Long Island.

       •       Central tendency. Consistent with findings from previous NMOC/SNMOC
              reports, the central tendency NMOC concentration measured at Long Island is
              notably lower than that measured at Newark. Further, NMOC concentrations at
              Long Island during the  1997 program (geometric mean of 0.219 ppmC) were
              nearly 25 percent lower than the levels reported during the 1996 program
              (geometric mean of 0.290 ppmC). Similarly, levels of NMOC at Newark have
              decreased by 7 percent over the same time frame—from 0.389 ppmC in 1996 to
              0.360 ppmC in 1997. As Section 3 noted, the final report for the 1998
              NMOC/SNMOC program will include a much more detailed analysis of long-
              term changes in air quality.

       •       Variability. Consistent with findings from previous NMOC/SNMOC monitoring
              efforts, the standard deviations of the measured NMOC concentrations at both
              Long Island and Newark are nearly two thirds of their corresponding arithmetic
              mean concentrations. Variability of NMOC concentrations at Long Island and
              Newark is relatively similar, as indicated by the similarity of the coefficients of
              variation.

4.2    Analyses and Interpretations
       To provide greater insight into  the trends and patterns among the total NMOC
concentrations at Long Island and Newark, the following sections compare the measured levels
of NMOC to selected meteorological conditions  (Section 4.2.1), to concentrations of ozone and
NOX (Section 4.2.2), and to the month of the monitoring program (Section 4.2.3).


       4.2.1   Comparison to Selected Meteorological Conditions
       Sections 4.2.1.1  and 4.2.1.2 assess how local humidity, precipitation, temperature, wind
direction, and wind speed  relate to the  NMOC concentrations measured at Long Island and

Newark.  These sections compare 3-hour average observations of meteorological parameters
                                          4-2
-------
measured between 6:00 and 9:00 a.m. to the corresponding air quality measurements. As Table
3-1 notes, meteorological data from the John F. Kennedy International Airport and the Newark
International Airport were considered for the Long Island and Newark monitoring stations,

respectively.  Due to the close proximity of these meteorological stations to the NMOC/SNMOC

monitoring stations, the meteorological data are believed to be representative of conditions at the

LINY and NWNJ stations.


       4.2.1.1 Comparisons for Long Island, NY

       Two different graphical techniques were used to compare meteorological conditions to

NMOC concentrations: Figure 4-1 presents the average NMOC concentrations that were

observed during different meteorological conditions; and Figure 4-2 presents a scatter plot

showing the wind direction and NMOC concentration for every valid sampling date.

Interpretations of these figures follow:
             Humidity. According to Figure 4-1, NMOC concentrations on mornings when the
             relative humidity was less than 60 percent were, on average, nearly 1.5 times
             higher than NMOC concentrations on mornings with relative humidity greater
             than or equal to 60 percent. This finding, which was observed to a certain extent
             at every monitoring station in the 1997 program, suggests that levels of
             hydrocarbon air pollution during the morning hours at LINY are relatively lower
             on more humid days. The reason for this trend is not known, but may be related
             to the fact that some fraction of airborne organic compounds partition into
             aerosols, particularly on humid days. These aerosols, along with any dissolved
             hydrocarbons, may then be removed from ambient air by deposition. Another
             possible explanation is  that photochemical reactivity, which generally consumes
             airborne hydrocarbons, may be higher on humid days, possibly due to higher
             concentrations of hydroxyl radicals. Further research is need to confirm the
             reason (or reasons) why the measured levels of NMOC are lowest on the most
             humid days.

             Precipitation.  To evaluate the effects of precipitation, Figure 4-1 compares the
             average NMOC concentration for samples collected during periods with at least
             0.1  inch of rain to the average NMOC concentration collected during periods with
             no measurable rain. The figure shows that NMOC concentrations measured
             during precipitation events were roughly three times lower than those measured
             during periods of no precipitation. This finding is consistent with "wet
                                          4-3
-------
              deposition" algorithms in EPA-approved dispersion models, which predict that
              precipitation events remove a portion of airborne gases and particles from ambient
              air (USEPA, 1995).  It should be noted that measurable precipitation occurred
              during only 4 of the 81 valid sampling events at LINY, which limits the statistical
              significance of the graph shown in Figure 4-1.

       •       Temperature. Although Figure 4-1 suggests that NMOC concentrations measured
              on relatively warm mornings tend to be higher than those measured on cooler
              mornings, the 1996 NMOC/SNMOC final report found NMOC concentrations at
              LINY to be completely uncorrelated with  temperature.  Therefore, it is unclear
              whether concentrations of hydrocarbons at LINY always increase with
              temperature, as the 1997 NMOC/SNMOC data suggest.

       •       Wind Speed. Figure  4-1 indicates that NMOC concentrations  measured during
              periods with average wind speeds greater  than 12 miles per hour (mph) are
              approximately  1.5 times lower than NMOC concentrations measured during all
              other times.  This observation also is consistent with EPA-approved atmospheric
              dispersion algorithms, which suggest that pollutants disperse more efficiently as
              wind speeds increase (USEPA, 1995).

       •       Wind Direction. The scatter plot in Figure 4-2 shows how measured NMOC
              concentrations varied with wind direction. Results from nine  valid sample dates
              are not displayed in the figure, because winds were variable while these samples
              were collected. Since relatively high and  relatively low NMOC concentrations are
              observed for most wind directions, it is unclear whether higher levels of airborne
              hydrocarbons tend to be linked to winds blowing from any single direction.  The
              absence of strong correlations between wind direction and NMOC concentration
              suggests that many different sources located around the LINY monitoring station,
              as opposed to one or a few sources, most likely contribute to the measured
              concentrations. This hypothesis is consistent with a general finding of the 1996
              NMOC/SNMOC report:  ambient air concentrations of NMOC appear to be
              linked more closely to emissions from motor vehicles than to emissions from
              industrial sources.

       Although the previous analyses provide some insight into how selected meteorological

conditions relate to levels of air pollution,  it is important to note that NMOC concentrations are a

measure of the overall level of air pollution and, therefore, are affected by numerous factors in

addition to those considered above.  The analyses presented later in this section attempt to

provide a more complete characterization of the NMOC monitoring data collected at LINY.
                                           4-4
-------
       4.2.1.2 Comparisons for Newark, NJ

       Following the same approach as used for the LINY monitoring station, Figures 4-3 and
4-4 compare NMOC concentrations from the NWNJ monitoring station to local meteorological

conditions. A summary of the data in these figures follows:
             Humidity. Consistent with the findings for Long Island, Figure 4-3 shows that
             NMOC concentrations measured at Newark tended to be lowest on the most
             humid days. As noted earlier, the reasons why NMOC concentrations tend to
             decrease with increasing humidity is not known.

             Precipitation.  Also consistent with the findings for Long Island,  levels of NMOC
             at Newark were notably lower during rainfall events than during periods of no
             measurable precipitation. This trend is most likely explained by wet deposition of
             airborne pollutants. As Section 5.2 describes, this trend was also observed at the
             four SNMOC air monitoring stations.

             Temperature. No trends are apparent from comparing temperature data and
             NMOC monitoring data at Newark, as shown in Figure 4-3.  One notable feature
             of this figure is the lack of correlation between the two parameters.

             Wind Speed. Figure 4-3 clearly indicates that NMOC concentrations in Newark
             decrease significantly with increasing wind speed.  In fact, the average NMOC
             concentration measured on mornings when wind speeds were greater than 12 mph
             was roughly 3 times lower than the average NMOC concentration measured when
             wind speeds were less than or equal to 4 mph. This analysis suggests that higher
             wind speeds in the Newark area effectively disperse hydrocarbon emissions from
             local sources.

             Wind Direction. According to Figure 4-4, NMOC concentrations ranging from
             0.1 ppmC to 0.5 ppmC were detected at the Newark station when winds were
             blowing from virtually every compass direction. This observation suggests that
             some sources of NMOC (most likely automobiles) exist all around the NWNJ
             monitoring station. Figure 4-4 provides some evidence of  a relationship between
             elevated concentrations of NMOC and wind direction: almost every NMOC
             concentration greater than 0.5 ppmC occurred when winds blew either from the
             north to northeast (i.e., wind directions between 0° and 60°) or from the west to
             northwest (i.e., wind directions between 270° and 300°). Although this
             relationship may be explained  by certain industrial emissions sources located near
             the NWNJ monitoring station, comparisons between wind  direction and NMOC
             concentration for previous and future years are needed to confirm that the
             relationship shown in Figure 4-4 is not anomalous.

                                         4-5
-------
       4.2.2   Comparison to Concentrations of Ozone and NOX
       Historically, sponsoring agencies have used NMOC monitoring data for a variety of
purposes, but typically as inputs to regional ozone forecasting models.  Although these models
are certainly useful for predicting and characterizing ozone episodes, comparisons of
concentrations of NMOC, ozone, and NOX can also be useful for appreciating the complex
interaction between these pollutants. The following discussion reviews selected data correlations
(Section 4.2.2.1), compares the highest concentrations of the different pollutants
(Section 4.2.2.2), and evaluates the ratios between NMOC and NOX (Section 4.2.2.3) to offer
sponsoring agencies additional insight into air quality within their jurisdictions.

       4.2.2.1 Data Correlations
       As Section 3.2.2 described, Pearson correlation coefficients characterize the direction and
strength of correlations between two sets of data. Table 4-2  lists the coefficients that were
calculated to determine the extent to which ambient air concentrations of NMOC, ozone,
nitrogen dioxide (NO2), and NOX are related. The correlation coefficients suggest that ambient
levels of ozone in Newark and Long Island appeared to be most closely related to ambient levels
of NO2 and NOX, respectively; however, note two important  limitations to this finding:  (1) None
of the correlations was strong enough (i.e., close enough to 1 or -1) to indicate that any single
variable was solely responsible for increases and decreases in ozone concentrations—a finding
that confirms that many different variables contribute to ozone formation process. (2) The
correlation analysis considered only 3-hour average concentrations of NMOC, and maximum
daily 1-hour average concentrations of ozone, NO2, and NOX. Different correlations may be
found by considering different averaging times for these pollutants.

       4.2.2.2 Comparison of Highest Concentrations
       At the beginning of the 1997 NMOC/SNMOC program, EPA required that maximum
hourly concentrations of ozone be lower than the NAAQS of 0.120 ppm.  (EPA's standard has
since changed to an  8-hour average concentration of ozone of 0.08 ppm.) To determine whether
                                          4-6
-------
peak levels of ozone are related to concentrations of any precursor pollutant, Table 4-3 lists, for

both Newark and Long Island, the ten dates having the ten highest maximum hourly ozone
concentrations, the ten dates having the highest 3-hour average total NMOC concentrations, the

ten dates having the highest maximum hourly NOX concentrations, and the ten dates having the

highest maximum hourly NO2 concentrations. This tabulation was performed to determine

whether elevated ozone concentrations tended to occur on dates when other pollutants also

peaked1, and results of this tabulation follow:
              Long Island.  Of the ten dates with the highest ozone concentrations, three
              occurred on dates when 3-hour average NMOC concentrations ranked among the
              top ten, and three also occurred when maximum hourly NO2 concentrations
              peaked. None of the dates with highest NOX concentrations coincided with dates
              with elevated ozone levels.  These observations provide some evidence of a
              correspondence between peak NMOC and NO2 concentrations and peak ozone
              concentrations near the Long Island station.  However, neither NMOC or NO2
              peak levels were entirely consistent with the highest ozone concentrations. Thus,
              NMOC and NO2 peak concentrations have some similarities to peak ozone
              concentrations, but neither NMOC nor NO2 levels by themselves indicate when
              ozone levels will peak.

              Newark. As with Long Island, the ten dates with the highest ozone concentrations
              at Newark did not correspond exactly with dates of relatively high concentrations
              of NMOC, NOX, or NO2. However, peak levels of ozone appeared to be more
              highly correlated to NO2 concentrations at Newark than at Long Island. Future
              data analyses should be conducted to determine the extent to which maximum
              concentrations of NO2 at Newark indicate the likelihood of observing a peak
              ozone concentration.

              Evidence of regional effects.  Of the ten dates with highest concentrations  of
              ozone at Long Island, eight correspond to dates with highest concentrations at
              Newark. This correspondence suggests that elevated concentrations of ozone are
              a regional  issue, but these data are insufficient to determine  the extent to which
              ozone transport between the monitoring locations occurs.  It should be noted that
              the dates of peak NMOC, NOX, and NO, concentrations were notably different
              between the Long Island and Newark monitoring stations.
        This analysis is not redundant with the evaluation of Pearson correlation coefficients, because it is
possible for different pollutants to have their peak concentrations highly correlated, without having highly correlated
concentrations at lower levels.

                                           4-7
-------
       Like the analysis of Pearson correlation coefficients, the analysis of peak concentrations
of ozone and its precursors offers only a simplified view of a complicated physical and chemical
process. Not surprisingly, the analysis of peak concentrations cannot identify patterns among the
data that are predictive of ozone concentrations, although this analysis identifies some
consistencies between ozone, NMOC, NOX, and NO, monitoring data.

       4.2.2.3 Ratios of NMOC to NOX
       Recent EPA studies have reported that the ratio of NMOC concentration to NOX
concentration (hereinafter referred to as NMOCNOJ may be a useful indicator of ozone
formation potential (USEPA, 1996a; 1996b). More specifically, these studies suggest that
airsheds with NMOC:NOX in the morning less than 5 ppbC/ppb2 are "hydrocarbon limited," and
variations in concentrations of NOX in these regions are expected to have little effect on ozone
formation.  On the other hand, airsheds with ratios in the morning greater than 15 ppbC/ppb are
"NOX limited," and changes in levels of hydrocarbons are similarly expected to  have little effect
on ozone formation (USEPA, 1996a). However, one of the EPA studies lists several limitations
to this empirical model and recommends that data analysts not base conclusions and derive ozone
control strategies solely on observed levels of NMOC:NOX (USEPA, 1996b).

       To apply this empirical approach to the NMOC monitoring data, NMOC:NOX was
calculated for both Long Island and Newark for every date with valid NMOC and NOX sampling
results.  The NOX concentrations used in this ratio were calculated from hourly NOX levels (from
6:00 a.m. to 9:00 a.m.) that were reported to AIRS. For Long Island, the average NMOC:NOX
was 4.5 ppbC/ppb, with 75 percent of the daily NMOC:NOX levels less than 5 ppbC/ppb. For
Newark, the average ratio was 6.7 ppbC/ppb, with 50 percent of the daily NMOC:NOX levels  less
than 5 ppbC/ppb.  These ratios suggest that the airsheds in Long Island and, to a lesser extent, in
Newark are both "hydrocarbon limited," implying that these airsheds have excess NOX and that
       2 Since NOX concentrations are typically expressed in units of ppb, NMOC:NOX ratios have units of
ppbC/ppb.
                                           4-8
-------
the concentration of airborne hydrocarbons is the limiting parameter for the photochemical
reactions that form ozone. Despite these empirical predictions, NMOC:NOX levels at both Long
Island and Newark were generally uncorrelated with corresponding maximum ozone
concentrations (i.e., peak ozone concentrations were just as likely to occur on days when
NMOC:NOX was relatively high as when the ratio was relatively low).

       4.2.3   Temporal Variations
       This section evaluates short-term variations in NMOC concentrations.  Analyses of such
temporal variations can provide insight into seasonal changes in air quality and can verify data
trends identified in previous NMOC/SNMOC final reports. As Section 3.2.5 explained, this
report does not present long-term temporal  variations, because the 1998 NMOC/SNMOC report
will focus almost exclusively on this topic.

       Figure 4-5 illustrates how the average NMOC concentration measured during the
morning hours at both Long Island and Newark varied from one summer month to the next.
Although some variations are observed,  none of the monthly average concentrations differed
from the corresponding arithmetic mean concentration by more than 15 percent.  The absence of
notable monthly  variations contradicts a finding of the 1996 NMOC report: the average NMOC
concentration of all samples collected in Long Island in September 1996 was more than twice as
high as the average concentration for samples collected in other summer months.  The difference
in findings probably results from varying meteorological conditions from one year to the next—a
hypothesis that can be confirmed by analyzing monthly variations in future NMOC/SNMOC
programs.

4.3     Data Quality Parameters
       Table 4-4 presents data quality parameters for the 1997 NMOC monitoring data. These
data indicate that both stations that collected NMOC samples had completeness fractions greater
than 94 percent, with  an overall program completeness of 95 percent. These high fractions
suggest that efficient management and oversight of the 1997 NMOC monitoring stations helped
                                          4-9
-------
minimize errors in field sampling and laboratory analysis and, therefore, the number of invalid
samples. Table 4-4 also shows that NMOC concentrations measured during replicate analyses or
from duplicate samples generally did not vary by more than 10 percent, a level indicating that all
NMOC samples were collected and analyzed to a high degree of precision. As Section 3
explained, the accuracy of the NMOC measurements cannot be quantified since no audit samples
were provided.

4.4    Summary
       During the  1997 NMOC/SNMOC program, concentrations of NMOC during the morning
hours were consistently lower at the Long Island station (average concentration 0.264 ppmC)
than at the Newark station (average concentration 0.430 ppmC), and average NMOC
concentrations at both stations decreased from their 1996 levels.  At both stations, levels of
NMOC tended to be higher on less humid days, during periods of no measurable precipitation,
and when wind speeds were relatively low.  The reason for the correlation between NMOC
concentrations and humidity is not known, and correlations between NMOC concentrations and
precipitation and wind speed are consistent with widely accepted atmospheric dispersion
modeling algorithms. Low to  moderate NMOC concentrations were detected at both Long Island
and Newark when winds blew from virtually every compass direction,  suggesting that emissions
sources throughout the areas—most likely motor vehicles—account for a large fraction of the
NMOC that was detected. Although several different analyses were performed to evaluate
potential correlations between airborne NMOC, NOX, NO2, and ozone, these analyses did  not
yield consistent results or suggest notable similarities  between ambient air concentrations of any
pair of these pollutants.
                                          4-10
-------
                                   Figure 4-1 (Page 1 of 2)
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                                            4-11
-------
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                                             4-14
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Category
Prevalence
Concentration
Range
Central
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Variability
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Number of valid sampling days
Number of nondetects
Frequency of detection
Lowest concentration (ppmC)
25th percentile concentration (ppmC)
50th percentile concentration (ppmC)
75th percentile concentration (ppmC)
Highest concentration (ppmC)
Median concentration (ppmC)
Arithmetic mean concentration (ppmC)
Geometric mean concentration (ppmC)
Standard deviation (ppmC)
Coefficient of variation
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                                             Table 4-3
             Dates with Highest Concentrations of Ozone, NMOC, NOX, and NO2
Dates of Ten Highest Concentrations Observed at Long Island, New York, by Pollutant:
Ozone
6/25/97
7/14/97
7/15/97
7/17/97
7/28/97
7/16/97
6/20/97
6/26/97
6/12/97
6/1 1/97
NMOC
9/25/97
8/20/97
9/19/97
6/9/97
7/14/97
6/12/97
7/15/97
8/26/97
8/25/97
9/16/97
NO,
7/18/97
7/21/97
9/25/97
9/19/97
9/5/97
7/25/97
8/26/97
9/18/97
8/25/97
8/29/97
NO,
8/29/97
6/25/97
6/12/97
6/11/97
8/8/97
8/1/97
6/10/97
9/12/97
9/19/97
6/30/97
Dates of Ten Highest Concentrations Observed at Newark, New Jersey, by Pollutant:
Ozone
7/14/97
6/25/97
7/16/97
7/15/97
7/17/97
6/11/97
6/12/97
6/20/97
7/18/97
7/21/97
NMOC
8/19/97
6/25/97
9/17/97
9/25/97
8/22/97
8/25/97
8/26/97
7/8/97
9/16/97
6/10/97
NOX
9/18/97
9/25/97
9/22/97
9/19/97
6/10/97
8/20/97
8/25/97
6/17/97
8/8/97
8/27/97
NO,
6/25/97
6/20/97
7/15/97
7/16/97
8/8/97
7/8/97
6/24/97
8/26/97
7/17/97
9/19/97
Note:   For each pollutant, the first date indicates the date of the highest concentration for that pollutant; the second
        date indicates the date of the second highest concentration; and so on.
        For NMOC, NOX, and NO;, dates in boldface correspond to dates of the highest concentrations of ozone.
        This table only considers concentrations of ozone, NOX, and NO2 that were measured on valid NMOC
        sampling dates. Higher concentrations of ozone, NOX, and N02 may have occurred during the summer of
        1997.
                                                4-20
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5.0    Analysis of SNMOC Monitoring Results
       This section summarizes the SNMOC ambient air monitoring data collected during the

1997 NMOC/SNMOC program.  As discussed earlier, the SNMOC sampling and analytical

method currently measures ambient air concentrations of 80 different hydrocarbons as well as

total NMOC, thus providing extensive information on the composition and magnitude of selected

components of air pollution at the sampling locations. Of the five monitoring stations that

measured SNMOC, four (CAMS5, CAMS 13, DLTX, and JUMX) collected SNMOC samples

daily, and one (NWNJ) collected SNMOC samples on a weekly basis, but only from July  15 to

September 15.  Due to this limited sample size, results from the Newark monitoring station are

not included in many of the statistical analyses that follow.  The remainder of this section  uses

the data analysis methodology to present data summary tables (Section 5.1), selected analyses

and interpretations (Section 5.2), and data quality parameters (Section 5.3).


5.1    Data Summary Tables
       Using the data summary parameters defined in Section 3.1, Tables 5-1 through 5-5

efficiently summarize the large volume of SNMOC monitoring data for the five stations that

collected SNMOC samples.  These summary tables reveal several notable trends:
             Prevalence.  Nearly all of the 80 hydrocarbons identified by the SNMOC
             sampling and analytical method were detected in more than 75 percent of the total
             SNMOC samples collected during the 1997 program. Several compounds,
             however, were detected in fewer than 50 percent of the SNMOC samples at most,
             if not all, of the monitoring stations. These compounds with low prevalence
             include 1-decene, 1-dodecene, 2-ethyl-l-butene,  1-octene, propyne, 1-tridecene,
             and 1-undecene. Summary statistics for these compounds should be interpreted
             with caution, as they may be significantly biased by a large number of nondetects.
             On the other hand, summary statistics for the remaining compounds likely
             characterize the concentration distributions well. The high prevalence for these
             compounds confirms that air pollution at the five monitoring stations during the
             summer months contains a complex mixture of numerous hydrocarbons.

             Concentration  range. As Tables 5-1 through 5-5 indicate, concentration ranges
             for SNMOC  vary widely from one compound to the next, and from one
             monitoring station to the next.  For example, the highest concentrations of seven
                                         5-1
-------
compounds exceeded 100 ppbC at the CAMS 13 monitoring station; the highest
concentrations of every compound were lower than this level at CAMS5 and
DLTX—the two other NMOC/SNMOC monitoring stations in the Dallas-Fort
Worth metropolitan area.  Of particular notice, six of the seven compounds with
concentrations exceeding  100 ppbC at CAMS 13 were alkanes.  Section 5.2.1
revisits this issue.

Readers should note two limitations when interpreting the concentration range
data in Tables 5-1 through 5-5. First, because the data summary tables only
characterize air concentrations measured between 6:00 a.m. and 9:00 a.m., local
time, it is highly likely that ambient levels of many SNMOC rose to higher levels
or fell to lower levels than the concentration range data indicate. Second, the
concentration range data for Newark probably do not even characterize the actual
lowest and highest concentrations between 6:00 a.m. and 9:00 a.m., since this
station collected SNMOC samples on only 9 days of the monitoring program.

Central tendency. Not surprisingly, the median, arithmetic mean, and geometric
mean concentrations shown in Table 5-1  through 5-5 also vary significantly
among the different compounds and monitoring stations. These various measures
of central tendency are expected to accurately represent actual central tendency
levels, due to the high prevalence of most SNMOC. For compounds detected in
fewer than half of the SNMOC samples, the magnitude of the central tendency
values may be influenced by nondetects, which were all replaced with
concentrations equal to one-half their corresponding detection limits.  Several
trends were identified to put the large volume of SNMOC central  tendency data
into perspective:

(1)    Total NMOC.  As discussed previously, the SNMOC analytical method
       not only measures  concentrations of individual compounds, but also
       measures levels of total NMOC. To provide a sense of overall levels of air
       pollution, Figure 5-1 shows how total NMOC varied among the sampling
       locations that collected NMOC samples. The figure shows that
       concentrations of total NMOC at CAMS 13, JUMX, and NWNJ were quite
       similar (i.e., roughly 400 to 450 ppbC) and approximately twice as high as
       those at CAMS5 and DLTX.

(2)    Percent of compounds identified.  For additional insight into the nature of
       airborne organic compounds, Figure 5-1 also illustrates the total
       concentration  of compounds that the SNMOC analytical method can, and
       cannot, identify. Although the percentage of identified and unidentified
       compounds varied from one monitoring station to the next, concentrations
       of the 80 compounds identified by the SNMOC analytical  method
       consistently comprised approximately 80 percent of the measured total
                             5-2
-------
       NMOC concentration. In short, the SNMOC analytical method
       consistently characterizes over three-fourths of the organic compounds
       found in urban air pollution. Although the identities of the unidentified
       compounds are obviously unknown, they probably include halogenated
       hydrocarbons, carbonyls and other oxygenates, and hydrocarbons that the
       SNMOC analytical equipment cannot yet identify. Accordingly, the
       analyses and interpretations in Section 6 (VOC) and Section 7 (carbonyls)
       provide insight into the "unidentified" forms of organic compounds found
       at the NMOC/SNMOC monitoring stations.

(3)    Compounds with highest geometric mean concentrations.  Table 5-6 lists,
       in order of decreasing geometric mean concentration, the 12 compounds
       with the highest geometric means for each monitoring station. To rank
       compounds for the table, geometric mean concentrations were first
       converted to units of ppbv.  Unlike units of ppbC, which are weighted by
       the numbers of carbons in compounds (see Section 2.4), units of ppbv are
       not biased by compound-specific parameters. For every NMOC/SNMOC
       monitoring station, the 12 compounds with the highest geometric mean
       concentration accounted for over 60 percent of the total identified
       SNMOC, on a ppbv basis. Therefore, a relatively small number of
       compounds comprises a significant portion of the complex mixture of
       airborne hydrocarbons.

       According to Table 5-6, many compounds had relatively high geometric
       mean concentrations at all five monitoring stations (acetylene, n-butane,
       ethane, ethylene, isopentane, rc-pentane, propane, and toluene), and other
       compounds ranked among the highest at only a few stations (benzene,
       n-hexane, isobutane, isobutene/1-butene, 2-methylpentane,
       3-methylpentane, propylene, and m,p-xylene). Also of note,  the six
       compounds with the highest ranking geometric mean concentrations at
       CAMS 13 were all alkanes, yet the six compounds with the highest
       concentrations  at every other station included at least two olefins.  Section
       5.2.1, which examines the composition of air pollution at the
       NMOC/SNMOC monitoring stations, explains the significance of this
       trend.

(4)    Comparisons of geometric mean concentrations across sites.  To provide
       greater insight into the spatial variations of individual compounds, Figure
       5-2 compares geometric mean concentrations across the five monitoring
       stations for the  12 compounds with the highest central tendency levels.
       The  diagrams within this figure indicate that the highest geometric mean
       concentrations for these compounds were observed only at the CAMS 13,
       JUMX, and NWNJ monitoring stations, with levels at CAMS5 and DLTX
                            5-3
-------
                     usually the lowest. Further, according to these diagrams, concentrations of
                     all olefins (i.e., acetylene, ethylene, and propylene) and aromatic
                     compounds (i.e., toluene and m,p-xylene) were highest at NWNJ; while
                     concentrations of alkanes were highest at CAMS 13, JUMX, and NWNJ.
                     Concentrations of three alkanes—isopentane, 2-methylpentane, and
                     «-pentane—at CAMS 13 were at least twice as high as those at the other
                     four SNMOC monitoring stations. Section 5.2.1 revisits this issue.

       •      Variability. According to Tables 5-1  through 5-5, coefficients of variation for
              most SNMOC compounds were lower than 1.5 at all monitoring stations.  The
              compounds with the highest coefficients of variation were typically those with the
              most carbon atoms (e.g., isopropylbenzene, rc-tridecane, H-decane, n-dodecane,
              and n-undecane). This trend most likely results from the fact that coefficients of
              variation were calculated from concentrations expressed in units of ppbC, which
              inherently gives greater weight to concentrations of compounds with more carbon
              atoms.  As a result, compounds with more carbons will appear to have greater
              variability than compounds with less carbons, even if the concentration
              distributions are similar.


       Although these data summary parameters provide a succinct, yet thorough, account of the

SNMOC monitoring data, they do not characterize sources of airborne hydrocarbons, impacts of

hydrocarbons on ozone formation, or comparisons of levels of air pollution to meteorological

conditions. The following sections address these issues.
5.2    Analyses and Interpretations
       To provide greater insight into the trends and patterns among the SNMOC

concentrations, the following discussion examines the composition of the SNMOC air samples

(Section 5.2.1), presents selected statistical analyses of the SNMOC data (Section 5.2.2),

compares SNMOC concentrations to selected meteorological conditions (Section 5.2.3) and to
concentrations of ozone and NOX (Section 5.2.4), and evaluates short-term temporal variations in
the SNMOC data (Section 5.2.5).


       5.2.1   Composition of Air Samples

       As Section 3.2.1 explained, the composition of air samples can be used to characterize the

reactivity and sources of pollution within airsheds.  For instance, air samples having relatively
                                          5-4
-------
 high concentrations of reactive compounds (such as olefins) likely characterize "newer" air

 masses near emissions sources, and those with relatively low concentrations of reactive
 compounds likely characterize "older" air masses (e.g., those influenced by long-range transport).

 The following analyses explain how the composition of air samples varied among the stations

 that collected SNMOC samples:
              Composition of air samples, by compound group. Figure 5-3 indicates the extent
              to which alkanes, olefins, and aromatics constitute total identified SNMOC at
              each monitoring station.  To avoid weighing the compositions by the number of
              carbons in each compound group, the compositions were calculated from
              concentrations in units of ppbv. The figure highlights several notable trends
              among the SNMOC monitoring data. First, aromatic compounds typically
              accounted for 10-15 percent of the total identified SNMOC, while olefinic
              compounds accounted for 20-30 percent, and alkanes accounted for 55-70
              percent.1  Second, since olefins and aromatic compounds are generally more
              reactive in air than alkanes (Carter, 1994), the relative amounts of these
              compound groups in air samples can be used as a rough indicator of the age of air
              masses. For instance, of the three monitoring stations in the Dallas-Fort Worth
              metropolitan area, olefins and aromatic compounds  at DLTX consisted of roughly
              40 percent of the identified SNMOC compounds, while these groups of
              compounds consisted of roughly 35 and 30 percent of the identified SNMOC
              compounds at CAMS5 and CAMS 13, respectively.  Otherwise stated, the air mass
              at DLTX contains a higher fraction of more reactive species than the air mass at
              CAMS5 and CAMS 13. This trend provides evidence that the air mass at DLTX is
              relatively "new," while the air masses at CAMS5  and CAMS 13 are relatively
              "old" and possibly influenced by long-range transport.  The fact that the six
              compounds with highest concentrations at CAMS 13 were all alkanes supports this
              hypothesis.

              The relative amounts of aromatics and olefins at JUMX and NWNJ are roughly
              the same as that for DLTX. Although the similarity in composition might suggest
              that the air masses at these monitoring stations are relatively "new," it is possible
              that the entire Juarez-El Paso and Newark-New York City airsheds contain
              relatively  higher amounts of these reactive compounds. For a better
              understanding of the age of air masses at JUMX and NWNJ, data from this study
       1 Two alkynes, acetylene and propyne, were identified by the SNMOC analytical method. These
compounds were considered in the olefin category for the calculations. Some compounds (e.g., styrene) include both
olefinic and aromatic functional groups. Such compounds were considered to be aromatics for the analyses of
chemical composition.

                                          5-5
-------
              must be compared with SNMOC monitoring data from other stations in those
              airsheds.

              Ratios ofBTEX compounds.  Both Section 3.2.1 and the 1996 NMOC/SNMOC
              report describe how concentration ratios of individual BTEX compounds can be
              used to identify emissions sources and comment on the age of air masses.
              Applying such analyses to the SNMOC monitoring data, Figure 5-4 shows how
              ratios of the concentrations of BTEX compounds to the concentration of
              ethylbenzene are very similar in magnitude from one station to the next. Further,
              the BTEX concentration ratios (shown in Figure 5-4) are very similar to those
              reported in a recent roadside  monitoring study designed to characterize the
              composition of air pollution believed to be influenced primarily by motor vehicle
              emissions (Conner, Lonnerman, Seila, 1995). The similarities between these
              profiles strongly suggest that emissions from motor vehicles contribute
              significantly to the ambient levels of aromatic hydrocarbons measured during the
              program.

              BTEX concentration ratios, particularly ratios of benzene to toluene, are
              frequently used to characterize the age of air masses at monitoring locations. The
              benzene:toluene ratio gradually changes as air masses move, primarily because
              toluene is nearly twice as reactive in photochemical smog as benzene (USEPA,
              1996a). As a result, the benzene:toluene ratio is expected to increase as an air
              mass travels from emissions sources to downwind locations.  SNMOC monitoring
              data collected in the Dallas-Fort Worth metropolitan area indicate that
              benzene:toluene ratios range  from 0.36 and 0.37 at CAMS5 and DLTX,
              respectively, to 0.43 at CAMS 13. The notably higher benzene:toluene ratio at
              CAMS 13 supports the hypothesis, raised previously, that the air mass at this
              monitoring station appears to be affected by long-range transport.

       5.2.2   Statistical Analyses

       This section examines correlations between ambient air concentrations of different
pollutants to provide additional insight into the origin of compounds detected in the SNMOC  air
samples. As Section 3 explained, the ambient air concentrations of pairs of compounds with

highly correlated air monitoring data tend to rise and fall in proportion; this most likely suggests

that both compounds originate from similar  emission sources. As an example of applying this

principle to the SNMOC monitoring data, a  matrix of Pearson correlation coefficients was

calculated among the 15 compounds with highest geometric mean concentrations at the CAMS 13
monitoring station.
                                          5-6
-------
       This matrix of correlation coefficients showed that all possible pairings of the following
 subset of compounds had very strong correlations (i.e., Pearson correlation coefficients greater
 than 0.93): benzene, n-hexane. isopentane, 2-methylhexane, 2-methylpentane, 3-methylpentane,
 n-pentane, toluene, and m,p-xylene.  With few exceptions, data correlations among the other
 compounds selected for this analysis (acetylene, w-butane, ethane, ethylene, isobutane, and
 propane) exhibited notably weaker correlations with all other compounds.  Similar patterns
 among Pearson correlation coefficients were observed for the other SNMOC monitoring stations.

       The notably strong correlations among selected aromatic and 6- and 7-carbon aliphatic
 compounds indicate that this entire group of compounds probably originates from the same
 categories of emissions sources in the vicinity of the SNMOC monitoring stations. The highly
 correlated data, coupled with the similarity of the BTEX concentration profiles to roadside
 studies, provide compelling evidence that motor vehicle emissions account for much of the
 airborne aromatic compounds and 6- and 7-carbon aliphatic compounds. The weaker
 correlations for acetylene, n-butane, ethane, ethylene, isobutane, and propane do not necessarily
 imply that motor vehicle emissions are not the primary source of the compounds; rather, the
 weaker correlations probably suggest that other factors, most likely photochemical reactions,
 affect ambient air concentrations of these compounds more significantly than they affect
 concentrations of aromatic and higher molecular weight aliphatic compounds.

       5.2.3   Comparison to Selected Meteorological Conditions
       The following analyses compare local observations of humidity, precipitation,
temperature, wind direction, and wind speed to the concentrations of total NMOC measured by
the SNMOC analytical method. More specifically, Section 5.2.3.1 compares meteorological data
 from the Dallas-Fort Worth Regional Airport to the CAMS 13, CAMS5, and DLTX ambient air
monitoring data, and Section 5.2.3.2 compares meteorological data from the El Paso
International Airport to the JUMX ambient air monitoring data. Section 4.2.1.2 provided similar
comparisons for the NWNJ monitoring station. Although comparisons to concentrations of
individual SNMOC may provide insight into specific air quality trends, such extensive analyses
                                           5-7
-------
are beyond the scope of this report.  The entire database of ambient air monitoring data and
meteorological observations can be  made available to sponsoring agencies that might be
interested in investigating this issue further.


       5.2.3.1 Comparisons for the Dallas-Fort Worth Area
       Following the data analysis approach used in Section 4.2.1, this section uses two
graphical techniques to compare meteorological conditions to total NMOC concentrations:
Figure 5-5 shows how NMOC concentrations changed, on average, with different meteorological
conditions; and Figure 5-6 presents  a scatter plot illustrating the wind direction and total NMOC
concentration for every valid sampling date. A description of these figures follows:
             Humidity.  According to Figure 5-5, NMOC concentrations at the three
             monitoring stations in the Dallas-Fort Worth area tended to be lowest when the
             relative humidity during the morning hours was the highest. This trend was
             particularly pronounced for the CAMS 13 monitoring station, where NMOC
             concentrations on mornings with relative humidity less than 60 percent were, on
             average, over 5 times greater than NMOC concentrations on morning with relative
             humidity greater than or equal to 80 percent.  As Section 4.2.1.1  noted, the exact
             reason (or reasons) for this data trend is not known.

             Precipitation.  As Figure 5-5 illustrates, NMOC concentrations at CAMS5,
             CAMS 13, and DLTX on mornings with at least 0.1 inches of rain were roughly
             two to three times lower than NMOC concentrations on mornings with no
             measurable precipitation—a data trend that is consistent with theories of wet
             deposition  (i.e., the scavenging of airborne hydrocarbons by precipitation)
             (USEPA, 1995). The meteorological station at the Dallas-Fort Worth Regional
             Airport recorded measurable precipitation between 6:00 a.m. and 9:00 a.m. on
             only two mornings of the 1997 NMOC/SNMOC program. As a result, analyses of
             larger volumes of data are needed to confirm whether the trend illustrated in
             Figure 5-5  is statistically significant.

             Temperature.  Unlike humidity and precipitation, temperature does not seem
             closely related to NMOC concentrations.  No trends are apparent from comparing
             temperature data with NMOC monitoring data collected at the three monitoring
             stations in the Dallas-Fort Worth metropolitan area. The 1996 NMOC/SNMOC
             final report also noted the absence of strong correlations between temperature and
             NMOC concentrations at these monitoring stations.
                                          5-8
-------
              Wind Speed. Consistent with observations reported for the Long Island and
              Newark monitoring stations, Figure 5-5 indicates that, on average, NMOC
              concentrations at CAMS5, CAMS 13, and DLTX all were lowest when wind
              speeds were greatest. This effect was most pronounced at the DLTX monitoring
              station, where the average NMOC concentration during morning hours with high
              winds (i.e., wind speeds greater than 12 mph) was nearly three times lower than
              the average NMOC concentration during periods of relatively calm winds (i.e.,
              wind speeds less than or equal to 4 mph). The trend of decreasing NMOC
              concentrations as wind speeds increase is consistent with local emissions sources
              affecting these monitoring stations:  during periods of calm winds, emissions from
              local sources do not disperse as effectively, causing ambient air concentrations to
              be relatively higher than during periods of high wind speeds.  This consistency
              with local emissions sources does not necessarily imply that longer-range
              transport of hydrocarbons within the Dallas-Fort Worth airshed is insignificant.

              Wind Direction. Figure 5-6 illustrates how NMOC concentrations varied with the
              wind direction  observed at the Dallas-Fort Worth Regional Airport. The figure
              indicates that winds predominantly blew from the south to the southwest (i.e.,
              wind directions between 180" and 230°), and it does not suggest any notable
              correlations between wind directions and levels of hydrocarbon air pollution. For
              instance, with the exception of a few outliers, NMOC concentrations ranging from
              100 ppbC to 300 ppbC were detected at the CAMS5 monitoring station when
              winds blew from virtually every compass direction. The lack of correlations
              between NMOC concentrations and wind direction suggests that emissions
              sources of hydrocarbons exist throughout the Dallas-Fort Worth metropolitan
              area, as opposed to hydrocarbon emissions sources being concentrated in any one
              particular area.  This observation supports the hypothesis that emissions from
              motor vehicles  probably account for a significant amount of the hydrocarbons
              detected in the  air at CAMS5, CAMS 13, and DLTX.
       Although the above analyses indicate some notable trends between meteorological
conditions and levels of air pollution in Dallas and Fort Worth, these analyses should certainly
not be viewed as comprehensive, particularly because many other factors (e.g., solar radiation,

mixing heights, upper-air wind patterns) are known to affect levels of air pollution. Nonetheless,
the above analyses offer some insight into how individual meteorological parameters affect, or do

not affect, ambient air concentrations of hydrocarbons in the Dallas-Fort Worth metropolitan
area.
                                           5-9
-------
       5.2.3.2 Comparisons for Juarez, Mexico
       Following the same approach as used in Section 5.2.3.1, the following analyses and

Figures 5-7 and 5-8 examine how meteorological conditions at the El Paso International Airport

relate to NMOC concentrations measured at the JUMX monitoring station. These figures

indicate several notable trends, most of which are similar to those observed at the other

NMOC/SNMOC monitoring stations:
             Humidity. Like the NMOC concentrations measured in Dallas, Fort Worth, Long
             Island, and Newark, those measured in Juarez, Mexico, also tended to be lowest
             on mornings with highest relative humidity.  Further research is needed to
             determine what mechanisms cause ambient levels of hydrocarbons to decrease
             under these meteorological conditions.

             Precipitation.  As Figure 5-7 indicates, ambient air concentrations of NMOC in
             Juarez tended to be lower on mornings that had measurable precipitation—a trend,
             once again, that is most likely explained by the effects of wet deposition.

             Temperature.  According to Figure 5-7, NMOC concentrations measured at
             JUMX on relatively warm mornings were, on average, higher than those measured
             on cooler mornings. In fact, of the six NMOC/SNMOC monitoring stations, the
             temperature dependence of ambient air concentrations of total NMOC appeared to
             be greatest at JUMX:  when the temperature from 6:00 a.m.  to 9:00 a.m. was
             greater than or equal to 75 degrees Fahrenheit, NMOC concentrations at JUMX
             tended to be roughly twice as high as those measured when temperatures were
             below 75 degrees.  The 1996 NMOC/SNMOC report found  a similar trend,
             suggesting that the positive correlation between temperature and NMOC
             concentrations at JUMX is most likely not a statistical anomaly.  The reason for
             this positive correlation, however, is not known.

             Wind Speed. Consistent with findings for the other NMOC/SNMOC monitoring
             locations, Figure 5-7 illustrates that, to a certain extent, ambient air concentrations
             of total NMOC at JUMX decreased with increased wind speeds.  As stated
             previously, the enhanced atmospheric dispersion that occurs on windier days
             probably explains this trend.

             Wind Direction.  Figure 5-8 indicates  that wind directions in the morning hours at
             the El Paso International Airport almost always blew from wind directions
             between  Oc and 180°. For these wind directions, most NMOC concentrations
             ranged from 0 ppbC to 500 ppbC, with some concentrations reaching higher
             levels. However, there does not appear to be any obvious clustering of elevated

                                          5-10
-------
              concentrations about a particular wind direction. Therefore, the predominant
              emissions sources of airborne hydrocarbons at JUMX are most likely located all
              around the monitoring station—an assumption consistent with the hypothesis that
              motor vehicles account for a significant fraction of the total NMOC measured at
              Juarez, Mexico.

       5.2.4   Comparison to Concentrations of Ozone and NOX
       Despite the complexity of ozone formation processes, simple statistical and numerical
analyses of ambient air monitoring data for NMOC, ozone, and NOX can provide some insight
into the mixture of air pollutants typically found in ozone nonattainment areas. The following
discussion presents selected data correlations (Section 5.2.4.1), compares dates on which
pollutants reached their highest concentrations (Section 5.2.4.2), and evaluates ratios between
concentrations of NMOC and NOX (Section 5.2.4.3). Although these analyses certainly do not
completely characterize ozone formation processes, they highlight some trends that may be worth
further investigation. For a more comprehensive understanding of ozone formation and transport
in their jurisdictions, sponsoring agencies should supplement the following analyses with other
analyses, such as compiling extensive emissions inventories and running regional dispersion
models.

       5.2.4.1 Data Correlations
       To indicate quantitatively the strength of correlations between ambient air concentrations
of ozone and concentrations of NMOC, NO2, and NOX, Table 5-7 presents selected Pearson
correlation coefficients for the four monitoring stations that collected daily SNMOC samples.
These coefficients characterize the extent to which maximum 1-hour average concentrations of
ozone at the SNMOC monitoring stations varied with (1) 3-hour average concentrations of
NMOC, (2) maximum 1-hour average concentrations of NOX, and (3) maximum  1-hour average
concentrations of NO2. The data in Table 5-7 indicate several trends:
             Magnitude of Pearson correlation coefficients. All of the Pearson correlation
             coefficients in Table 5-7 are less than 0.6.  The absence of stronger correlations
             (i.e., Pearson correlation coefficients closer to -1 or 1) suggests that ambient air
             concentrations of NMOC, NOX, or NO2 alone do not explain variations in ozone

                                          5-11
-------
              levels at the SNMOC monitoring stations.  Some combination of these and other
              parameters likely correlates better with maximum ozone concentrations.

       •       Trends at CAMS5 and DLTX. According to Table 5-7, the Pearson correlation
              coefficients between ozone and NMOC, NOX, and NO2 were of comparable
              magnitude at each of the SNMOC monitoring stations in Dallas.  This observation
              suggests that maximum ozone concentrations were just as likely to occur on days
              with relatively high levels of NMOC concentrations as they were to occur when
              NOX and NO, concentrations were relatively high. In short, the coefficients do not
              link levels of ozone at CAMS5 and DLTX to any particular pollutant.

              Trends at CAMS13 and JUMX.  Unlike the similarities noted for CAMS5 and
              DLTX, the Pearson correlation coefficients calculated for CAMS 13 and JUMX
              exhibit a different trend: at both stations, correlations between ozone and NMOC
              were notably lower than correlations between ozone and NOX and between ozone
              and NO2. This trend suggests that ambient air concentrations of ozone at
              CAMS 13 and JUMX appear to be more closely linked to concentrations of NOX
              and NO2 than  to concentrations of NMOC. Section 5.2.4.3 revisits this issue.


       Although the analyses of Pearson correlation coefficients provide some insight into air

quality at the SNMOC monitoring station, there are several limitations associated with using

these coefficients to evaluate ozone formation trends, including: (1) Because Pearson correlation

coefficients only characterize the extent to which pairs of variables exhibit linear relationships,

analyses of Pearson correlation coefficients may overlook noteworthy nonlinear and multivariate

trends; (2) The correlation analysis above considered only 3-hour average concentrations of

NMOC and maximum daily  1-hour average concentrations of ozone, NO2, and  NOX from the

same day. It is possible that stronger correlations exist among concentrations with different

averaging times and that elevated concentrations of ozone may be linked to events that occur
over several  consecutive days.  Despite these limitations, analyses of Pearson correlation

coefficients provide a simple account of whether ozone concentrations generally rose and fell in
proportion with concentrations of other pollutants.
                                          5-12
-------
       5.2.4.2 Comparison of Highest Concentrations
       As Section 4.2.2.2 explained, EPA's air quality standards for ozone changed during the
 1997 NMOC/SNMOC program from a maximum hourly standard of 0.120 ppm to an 8-hour
 average standard of 0.080 ppm. When evaluating the highest concentrations of ozone, this
 section considers only maximum hourly concentrations—the averaging period that EPA
 regulated at the beginning of the 1997 NMOC/SNMOC program.  Future NMOC/SNMOC
 reports will assess how peak concentrations of NMOC relate to 8-hour average concentrations of
 ozone.

       To assess the extent to which peak concentrations of ozone, NMOC, NOX, and NO2 are
 related, Table 5-8 lists, for the four monitoring stations that collected SNMOC samples daily, the
 10 dates on which maximum hourly ozone concentrations were highest, the 10 dates on which
 3-hour average NMOC concentrations were highest, the 10 dates on which maximum hourly NOX
 concentrations were highest, and the 10 dates on which maximum hourly NO2 concentrations
 were highest. In generating this table, dates with invalid or incomplete ozone, NMOC, NOX, or
 NO, measurements were not considered.

      Although peak ozone concentrations at the four monitoring stations sometimes occurred
 on dates when NMOC, NOX, or NO2 concentrations also peaked, Table 5-8 indicates that, more
 often than not, the dates of the highest ozone concentrations of the four pollutants did not
 coincide. As with the analyses of Pearson correlation  coefficients, this simplified analysis of
 peak ozone concentrations cannot identify patterns among the data that are reasonably predictive
 of elevated ozone concentrations.

      5.2.4.3 Ratios of NMOC to NOX
      As Section 4.2.2.3 explained, the ratio of NMOC concentration to NOX concentration (or
NMOC:NOX) at a given monitoring station may characterize the predominant  ozone formation
processes for a given air mass. To a first approximation, airsheds with NMOC:NOX levels less
than 5 ppbC/ppb are "hydrocarbon limited," and airsheds with NMOC:NOX levels greater than
                                          5-13
-------
15 ppbC/ppb are "NOX limited" (USEPA, 1996a). Reports have suggested that variations in
concentrations of NOX are suspected of having little influence on ozone concentrations in
"hydrocarbon limited" areas, and, similarly, variations in concentrations of NMOC are suspected
of having little influence on ozone concentrations in "NOX limited" areas (USEPA, 1996a).  As
stated previously, because the generic NMOC:NOX categories provide a simplified account of an
extremely complex physical phenomenon, EPA does not recommend that firm conclusions be
drawn solely from evaluating NMOC:NOX levels (USEPA, 1995b).

       Based on the NMOC concentrations reported by the SNMOC analytical method and the
NOX concentrations reported by the monitoring stations listed in Table  3-1, NMOC:NOX levels
for the 1997 NMOC/SNMOC monitoring stations are 5.5 ppbC/ppb for CAMS5, 43.8 ppbC/ppb
for CAMS 13, 5.3 ppbC/ppb for DLTX, and 16.4 ppbC/ppb for JUMX. Applying the guidelines
stated previously, the NMOC:NOX values for CAMS5 and DLTX are slightly higher than the
threshold listed for "hydrocarbon limited" air masses, while the values for JUMX and especially
CAMS 13 meet the empirical criteria for "NOX limited" air masses.  It should be noted that, for
the CAMS 13 and JUMX stations, the statistical analyses in Section 5.2.4.1 corroborate  the
predictions  of the NMOC:NOX ratios: The statistical analyses showed that ozone levels at
CAMS 13 and JUMX correlated better with concentrations of NOX than with NMOC, as is
expected for "NOX limited" air masses. Despite the consistent findings from different statistical
and numerical analyses, sponsoring agencies should supplement the predictions of the
NMOC:NOX ratios with other photochemical assessment techniques, such as conducting
modeling simulations.

       5.2.5  Temporal Variations
       The following discussion evaluates monthly variations in the composition and magnitude
of SNMOC concentrations measured at the four stations that collected  daily samples. Monthly
variations provide additional context for interpreting ambient air monitoring data, especially
because photochemical reactivity generally decreases in August and September, when the
number of daylight hours gradually decreases.  As noted previously, the 1998 NMOC/SNMOC
                                         5-14
-------
report will focus almost exclusively on presenting and interpreting annual variations in SNMOC
monitoring data.
       Figure 5-9 presents four graphs that illustrate, for each monitoring station, how the
composition and magnitude of total identified SNMOC compounds varied from one summer
month to the next. The graphs indicate the total concentration of identified compounds in units
of ppbv, as well as relative contributions of alkanes, olefins, and aromatic compounds.  In this
analysis, converting concentrations to units of ppbv was necessary to avoid biasing the
composition data in favor of compounds with more carbon atoms. The graphs in Figure 5-9
indicate several notable trends:
             CAMS5. According to Figure 5-9, the concentrations of total identified SNMOC
             gradually decreased through the summer, with the monthly average concentration
             in September approximately 20 percent lower than in June. The composition of
             the air samples did not indicate as a dramatic a change. However, the relative
             amounts of olefins and aromatic compounds did increase, particularly in August
             and September, and the relative amounts of alkanes decreased.  The increase in
             the most reactive compounds (i.e., olefins and aromatics) most likely results from
             decreases in photochemical reactivity in the late summer.

             CAMS13. Figure 5-9 clearly indicates that the monthly average concentrations of
             total identified SNMOC at CAMS5 increased dramatically during the 1997
             program. In fact, the monthly average concentration in August was roughly 2.5
             times higher than the June and July monthly average concentrations, and the
             monthly average concentration in September was almost 4 times higher than
             levels in June and July. Unless motor vehicle traffic patterns in the Fort Worth
             area exhibit similar monthly variations, the significantly higher SNMOC
             concentrations in August and September cannot be explained entirely by local
             motor vehicle sources. A likely alternate explanation is that air quality at
             CAMS 13 may also be affected by long-range transport of hydrocarbons.

             Of particular notice, none of the dates with the ten highest ozone concentrations at
             CAMS 13 were in September (see Table 5-8). Therefore, air concentrations of
             ozone at CAMS 13 did not appear to be affected significantly by the notable
             increase in ambient air concentrations of hydrocarbons. This trend also supports
             the hypothesis that the air mass at CAMS 13 is "NOX limited."
                                         5-15
-------
              Not apparent in the figure is the fact that the composition of SNMOC samples at
              CAMS 13 also changed significantly throughout the summer months.  For
              instance, olefins accounted for 25 percent of total identified SNMOC in June, but
              accounted for only 11 percent of the total in September. This decrease was almost
              entirely compensated by relative increases in the composition of alkanes. Thus,
              contrary to the trend observed at CAMS5, the relative concentrations of the most
              reactive compounds actually decreased during the months when photochemical
              reactivity gradually diminishes. This trend is consistent with the hypothesis that
              long-range transport of hydrocarbons may affect air quality at CAMS 13, since one
              would expect to see relatively lower amounts of reactive compounds if an air mass
              had transported over  longer distances. Further research is needed, however, to
              confirm this explanation.

       •       DLTX.  The pattern of monthly variations in SNMOC concentrations at DLTX is
              quite similar to that of CAMS5: the magnitude of monthly average concentrations
              of total identified compounds gradually decreased, with the monthly average
              concentration in September roughly 20 percent lower than that in June.  Further,
              the composition of olefins in the air mass gradually increased, while the relative
              amounts of alkanes decreased.  As with at CAMS5, the steadily increasing
              composition of the most reactive compounds might have resulted from decreases
              in photochemical reactivity.

       •       JUMX. Unlike the monthly average concentrations for the other monitoring
              stations, those for JUMX were nearly uniform, with average concentrations of
              total identified compounds changing less than 10 percent from one month to the
              next. The composition of pollution at Juarez, however, varied significantly. Most
              notably, the relative composition of olefins increased from 21 percent in July to
              28 percent in September, with a much less pronounced increase in the
              composition of aromatic compounds, while a decrease in concentrations of
              alkanes offset these increases. The changes in composition at JUMX are similar
              to those observed at both CAMS5 and DLTX: relative concentrations of the most
              reactive species in ambient air gradually increase from July to August to
              September.


       Although the above discussion offers several hypotheses to explain the temporal

variations observed during the 1997 NMOC/SNMOC program, the monthly variations described

in this report may not necessarily be representative of monthly variations in other years.

Analyses of temporal variations in the  1998 NMOC/SNMOC report will examine how monthly

variations have changed from one year to the next.
                                         5-16
-------
 5.3    Data Quality Parameters
       Tables 5-9 and 5-10 characterize the quality of the SNMOC monitoring data by
 presenting completeness and precision results, respectively, for the 1997 program. According to
 Table 5-9, the air monitoring network and laboratory generated valid sampling results for
 94 percent of the days with scheduled sampling events.  Moreover, every station that collected
 daily SNMOC samples achieved completeness figures of 89 percent or higher. These high
 completeness figures suggest that the 1997 program was effectively managed both in the field
 and in the laboratory to minimize the number of invalidated sampling events.

       To provide another indicator of data quality, 37 duplicate SNMOC samples were
 collected in the field, then analyzed in replicate. Table 5-10 presents a summary of analytical
 precision and sampling and analytical precision for the 1997 program.  As Section 3.3.2
 describes, analytical precision characterizes measurement variability among replicate analyses,
 and sampling and analytical precision characterizes measurement variability among duplicate
 samples. According to the SNMOC method documentation, typical bounds for analytical
 precision for compounds with concentrations greater than 2 ppbC should have a relative percent
 difference (RPD) less than 30 percent and compounds measured at lower levels should have an
 RPD less than 95 percent (USEPA, 1989). Typical bounds for sampling and analytical precision
 are not reported.  Of the 80 compounds listed in Table 5-10, none have an RPD greater than
 95 percent, and only 9 have RPDs greater than 30 percent. Of these 9 compounds, only ethane
 was consistently detected at levels greater than 2 ppbC.  Therefore, with the possible exception of
 measurements of ethane, analysis of SNMOC samples was performed within the precision
 guidelines of the analytical method.

 5.4    Summary
       The 1997 SNMOC ambient air monitoring data, which were found to be highly precise,
extensively characterize levels of air pollution at specific locations in the Dallas-Fort Worth,
Juarez-El Paso, and Newark-New York City airsheds. During the summer of 1997,  geometric
means of NMOC concentrations during the morning hours varied significantly among the
                                         5-17
-------
monitoring locations: levels at CAMS 13, JUMX, and NWNJ ranged from 400 to 450 ppbC,
while levels at CAMS5 and DLTX ranged from 150 to 250 ppbC. With the exception of
CAMS 13, NMOC concentrations at the NMOC/SNMOC monitoring stations did not vary
significantly from one month to the next.  At CAMS 13, however, NMOC concentrations in
September were nearly 4 times greater than they were in June and July. Although the
composition of hydrocarbons also varied among the monitoring locations and with time, aromatic
compounds typically accounted for 10-15 percent of the total identified compounds on a volume
basis, olefins for 20-30 percent, and alkanes for 55-70 percent. At every monitoring station, the
12 compounds with the highest geometric mean concentrations accounted for over 60 percent of
the concentration of the total identified compounds. Several compounds had relatively high
geometric mean concentrations at all five monitoring stations. These compounds include
acetylene, n-butane,  ethane, ethylene, isopentane, n-pentane, propane, and toluene, and, to a
lesser extent, benzene, n-hexane, isobutane, isobutene, 1-butene, 2-methylpentane,
3-methylpentane, propylene, and the xylene isomers.  Consistent with findings from previous
NMOC/SNMOC reports, the concentration profiles for BTEX compounds suggest that motor
vehicle emissions account for a large fraction of the hydrocarbons in the air near the SNMOC
monitoring stations.

       Despite the complex interactions between local meteorology and ambient air quality.
several correlations between selected meteorological conditions and SNMOC concentrations
were observed among the 1997 data. First, ambient air concentrations of total NMOC were
consistently lower on the most humid days, during periods of measurable precipitation, and on
the windiest days. Although the exact reason (or reasons) why airborne hydrocarbons are lowest
on humid days is unknown, the link between NMOC concentrations and precipitation is best
explained by the theory of wet deposition, and the link between NMOC concentrations and wind
speed is most likely due to the enhanced dispersion that occurs as wind speeds increase. No
consistent relationships were apparent between NMOC concentrations and temperature or wind
direction.
                                         5-18
-------
       Several statistical and numerical analyses were performed to identify relationships
between concentrations of ozone, NMOC, NOX, and NO2, but none found consistent data trends
across all monitoring stations.  Nonetheless, there was some evidence that the air mass measured
at the CAMS 13 monitoring station in Fort Worth differed significantly from that measured at the
CAMS5 and DLTX monitoring stations in Dallas.  For instance, based on the relatively higher
ratios of benzene concentrations to toluene concentrations and the relatively lower composition
of olefins (i.e., the most reactive compounds), the air mass at CAMS 13 appears to be "older"
than that at both CAMS5 and DLTX. Further, the air at CAMS 13 exhibited unique monthly
variations and notably different NMOC:NOX levels. Possible interpretations of these data
patterns were provided throughout this section.

       Finally, as noted throughout this report, even though the 1997 SNMOC monitoring data
extensively characterize air quality, they do not provide a comprehensive account of the many
different factors that affect levels of air pollution.  Accordingly, sponsoring agencies are
encouraged to conduct additional analyses to gain further insight into the nature and magnitude
of air pollution  within their jurisdictions.
                                          5-19
-------
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                                           5-21
-------
                                   Figure 5-2 (Page 2 of 4)

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                                             5-22
-------
                                    Figure 5-2 (Page 3 of 4)
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                                             5-23
-------
                                 Figure 5-2 (Page 4 of 4)
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                                 Figure 5-5 (Page 1 of 4)
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                                          5-27
-------
                               Figure 5-5 (Page 2 of 4)
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                                       5-28
-------
                                 Figure 5-5 (Page 3 of 4)
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                                         5-29
-------
                                Figure 5-5 (Page 4 of 4)
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                                        5-30
-------
                                       Figure 5-6
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                                          5-31
-------
                             Figure 5-7 (Page 1 of 2)
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                                      Table 5-8 (Page 1 of 2)
             Dates with Highest Concentrations of Ozone, NMOC, NOX, and NO2
Dates of 10 Highest Concentrations Observed at CAMS 5, by Pollutant:
Ozone
7/14/97
7/17/97
6/18/97
7/16/97
8/27/97
8/26/97
8/6/97
7/15/97
7/28/97
8/4/97
NMOC
6/25/97
8/5/97
9/26/97
9/3/97
7/16/97
6/18/97
7/28/97
6/9/97
7/15/97
6/11/97
NO,
9/26/97
8/25/97
6/25/97
7/23/97
6/11/97
9/29/97
8/21/97
6/17/97
6/18/97
7/15/97
NO,
9/29/97
9/26/97
6/17/97
8/5/97
6/3/97
8/4/97
6/11/97
6/18/97
7/15/97
6/4/97
Dates of 10 Highest Concentrations Observed at CAMS 13, by Pollutant:
Ozone
7/31/97
8/21/97
7/29/97
8/1/97
8/4/97
6/9/97
7/17/97
8/5/97
8/27/97
6/4/97
NMOC
8/25/97
9/5/97
9/1 1/97
9/3/97
9/22/97
8/26/97
9/23/97
8/29/97
8/28/97
9/1/97
NO,
9/29/97
9/8/97
8/28/97
7/18/97
6/3/97
6/4/97
7/30/97
9/30/97
7/23/97
8/4/97
NO,
8/4/97
9/26/97
6/6/97
9/11/97
8/7/97
9/30/97
8/5/97
7/23/97
8/8/97
9/8/97
Note:    For each pollutant, the first date in the list indicates the date of the highest concentration for that pollutant;
        the second date indicates the date of the second highest concentration; and so on.
        For NMOC, NO,, and NO:, dates in boldface indicate when dates correspond to a date with one of the ten
        highest concentrations of ozone.
        This table only considers concentrations of ozone, NO,, and NO2 that were measured on valid NMOC
        sampling dates. Higher concentrations of ozone, NO,, and N02 may have occurred during the summer of
        1997 (e.g., on weekends, holidays, or other days when SNMOC samples were not collected).
                                                5-66
-------
                                      Table 5-8 (Page 2 of 2)
             Dates with Highest Concentrations of Ozone, NMOC, NOX, and NO2
Dates of 10 Highest Concentrations Observed at DLTX, by Pollutant:
Ozone
7/29/97
8/4/97
8/21/97
8/27/97
8/1/97
7/17/97
8/6/97
9/29/97
8/26/97
9/3/97
NMOC
6/1 1/97
6/2/97
8/21/97
6/9/97
9/3/97
8/28/97
8/29/97
8/5/97
6/25/97
7/15/97
NO,
9/26/97
6/2/97
8/25/97
6/11/97
6/25/97
9/3/97
8/5/97
8/29/97
7/15/97
8/4/97
N02
9/29/97
9/26/97
8/4/97
9/8/97
6/17/97
8/27/97
9/30/97
6/2/97
6/1 1/97
8/5/97
Dates of 10 Highest Concentrations Observed at JUMX, by Pollutant:
Ozone
9/30/97
9/26/97
8/27/97
7/28/97
9/12/97
9/29/97
7/31/97
8/12/97
7/17/97
9/1 1/97
NMOC
9/8/97
8/26/97
8/14/97
9/2/97
8/27/97
9/30/97
8/21/97
9/18/97
8/28/97
7/31/97
NO,
8/28/97
8/27/97
9/26/97
9/18/97
8/19/97
9/30/97
9/19/97
7/17/97
8/21/97
9/29/97
NO,
8/28/97
8/27/97
9/18/97
8/19/97
9/30/97
9/19/97
9/26/97
7/17/97
8/21/97
9/9/97
Note:    For each pollutant, the first date in the list indicates the date of the highest concentration for that pollutant;
        the second date indicates the date of the second highest concentration; and so on.
        For NMOC, NOX, and NO:, dates in boldface indicate when dates correspond to a date with one of the ten
        highest concentrations of ozone.
        This table only considers concentrations of ozone, NOX, and NO, that were measured on valid NMOC
        sampling dates. Higher concentrations of ozone, NOX, and N02 may have occurred during the summer of
        1997 (e.g., on weekends, holidays, or other days when SNMOC samples were not collected).
                                                5-67
-------
                                            Table 5-9
                             Completeness of SNMOC Monitoring
Monitoring Station
Code
CAMS 13
CAMS5
DLTX
JUMX
Location
Fort Worth, TX
Dallas, TX
Dallas, TX
Juarez, Mexico
Totals
Number of Days
When Sampling
Was Attempted
84
84
85
56
309
Number of Days
with Valid
Samples
79
81
82
50
292
Completeness
94%
96 %
96%
89%
94%
Note:   The Newark monitoring station collected fewer than 10 SNMOC samples according to a site-specific
       schedule. Sampling results for this station are not included in this review of completeness.
                                              5-68
-------
                                            Table 5-10
                     Data Quality Parameters for SNMOC Measurements
Compound
Acetylene
Benzene
1,3-Butadiene
n -Butane
cw-2-Butene
fraw.r-2-Butene
Cyclohexane
Cyclopentane
Cyclopentene
n-Decane
1-Decene
m-Diethylbenzene
p-Diethylbenzene
2,2-Dimethylbutane
2,3-Dimethylbutane
2,3-Dimethylpentane
2,4-Dimethylpentane
rc-Dodecane
1-Dodecene
Ethane
2-Ethyl-l-butene
Ethylbenzene
Ethylene
m-Ethyltoluene
o-Ethyltoluene
/?-Ethyltoluene
n-Heptane
1-Heptene
n-Hexane
1-Hexene
m-2-Hexene
rra/«-2-Hexene
Analytical Precision
RPD
(%)
2%
5%
18%
3%
11%
17%
8%
11%
10%
15%
64%
35%
25%
12%
9%
12%
7%
25%
44%
38%
NA
13%
3%
9%
16%
13%
8%
26%
4%
10%
10%
14%
Number of
Observations
74
74
70
74
74
74
74
74
72
74
8
71
71
74
74
74
74
73
44
74
0
74
74
74
74
74
74
74
74
72
72
72
Sampling and Analytical Precision
RPD
(%)
3%
6%
21%
4%
12%
11%
7%
9%
15%
23%
47%
22%
20%
12%
8%
8%
8%
42%
30%
4%
NA
8%
4%
10%
14%
13%
6%
18%
5%
14%
11%
14%
Number of
Observations
37
37
35
37
37
37
37
37
36
37
3
35
35
37
37
37
37
36
21
37
0
37
37
37
37
37
37
37
37
36
36
36
Note:    The number of observations for analytical precision indicates the number of replicates in which the
        compound was detected in both analyses; the number of observations for sampling precision indicates the
        number of duplicates in which the compound was detected in the four analyses of the duplicate samples. By
        definition, analytical precision and sampling precision cannot be evaluated for compounds with zero
        observations, hence compounds with no observations show an RPD of "NA."
                                               5-69
-------
                                     Table 5-10 (Continued)
                     Data Quality Parameters for SNMOC Measurements
Compound
Isobutane
Isobutene/1-Butene
Isopentane
Isoprene
Isopropylbenzene
2-Methyl-l-butene
2-Methyl-2-butene
3-Methyl-l-butene
Methylcyclohexane
Methylcyclopentane
2-Methylheptane
3-Methylheptane
2-Methylhexane
3-Methylhexane
2-Methylpentane
3-Methylpentane
2-Methyl- 1 -pentene
4-Methyl- 1 -pentene
n-Nonane
1-Nonene
n-Octane
1 -Octene
n-Pentane
1 -Pentene
m-2-Pentene
rra/zs-2-Pentene
a-Pinene
b-Pinene
Propane
w-Propylbenzene
Propylene
Propvne
Analytical Precision
RPD
(%)
3%
6%
3%
14%
26%
4%
5%
9%
10%
3%
8%
6%
5%
11%
8%
5%
14%
27%
14%
37%
9%
44%
2%
20%
6%
14%
14%
27%
6%
18%
4%
NA
Number of
Observations
74
74
74
74
74
74
74
72
74
74
74
74
74
74
74
74
72
72
74
69
74
13
74
74
74
74
73
65
74
74
74
0
Sampling and Analytical Precision
RPD
(%)
4%
8%
5%
14%
13%
9%
9%
8%
7%
4%
6%
6%
4%
10%
9%
7%
12%
25%
13%
30%
8%
51%
5%
20%
7%
13%
18%
31%
5%
11%
5%
NA
Number of
Observations
37
37
37
37
37
37
37
36
37
37
37
37
37
37
37
37
36
36
37
32
37
4
37
37
37
37
36
31
37
37
37
0
Note:   The number of observations for analytical precision indicates the number of replicates in which the
       compound was detected in both analyses; the number of observations for sampling precision indicates the
       number of duplicates in which the compound was detected in the four analyses of the duplicate samples By
       definition, analytical precision and sampling precision cannot be evaluated for compounds with zero
       observations, hence compounds with no observations show an RPD of "NA."
                                               5-70
-------
                                    Table 5-10 (Continued)
                    Data Quality Parameters for SNMOC Measurements
Compound
Styrene
Toluene
n-Tridecane
1 -Tridecene
1 ,2.3-Trimethylbenzene
1 ,2,4-Trimethylbenzene
1 ,3,5-Trimethylbenzene
2,2,3-Trimethylpentane
2,2,4-Trimethylpentane
2,3,4-Trimethylpentane
rc-Undecane
1 -Undecene
m,/7-Xylene
o-Xvlene
Analytical Precision
RPD
(%)
21%
6%
40%
47%
26%
16%
14%
11%
5%
4%
15%
63%
9%
10%
Number of
Observations
73
74
39
9
73
74
74
74
74
74
74
25
74
74
Sampling and Analytical Precision
RPD
(%)
24%
6%
59%
74%
23%
13%
13%
9%
5%
4%
37%
46%
8%
8%
Number of
Observations
36
37
17
4
36
37
37
37
37
37
37
12
37
37
Note:  The number of observations for analytical precision indicates the number of replicates in which the
       compound was detected in both analyses; the number of observations for sampling precision indicates
       the number of duplicates in which the compound was detected in the four analyses of the duplicate
       samples.  By definition, analytical precision and sampling precision cannot be evaluated for
       compounds with zero observations, hence compounds with no observations show an RPD of "NA."
                                             5-71
-------
6.0    Analysis of VOC Monitoring Results
       This section summarizes the VOC ambient air monitoring data collected during the 1997
NMOC/SNMOC program. The VOC data are useful for characterizing ambient levels of a
subset of organic compounds, particularly halogenated hydrocarbons, that the SNMOC analytical
methods cannot identify. As Section 5 noted, unidentified organic compounds accounted for
approximately 20 percent of the NMOC concentrations at the stations that collected SNMOC
samples. Of the five NMOC/SNMOC monitoring stations that measured VOC, four (CAMS5,
CAMS 13, DLTX, and JUMX) collected VOC samples daily, and one (NWNJ) collected VOC
samples on a weekly basis, but only for July 15 through September 15. The remainder of this
section presents a data summary (Section 6.1), analyses and interpretations (Section 6.2), and
data quality parameters (Section 6.3) for all five stations. However, due to limited sample size,
results from the Newark station are not included in some of the analyses. Section 6.4
summarizes the main findings drawn from the VOC monitoring data.

Note: The VOC and SNMOC analytical methods identify many of the same compounds (e.g.,
      benzene, toluene,  and ethylbenzene). Future NMOC/SNMOC reports will compare levels
      measured for these compounds by the two different methods.

6.1   Data Summary Tables
      Using the data summary parameters discussed in Section 3.1, Tables 6-1 through 6-5
summarize the monitoring results for the  seven stations that measured VOC.  Readers should
note that these tables, along with the VOC samples, only characterize air quality from 6:00 a.m.
to 9:00 a.m. standard time. It is possible that daily average concentrations of some VOC may be
notably higher or lower than the data summary tabes  suggest. Nonetheless, the tables reveal
several noteworthy trends:
             Prevalence. According to the data summary tables, 13 compounds were detected
             in over 50 percent of the samples collected at every NMOC/SNMOC monitoring
             station.  Due to their high prevalence, the summary statistics for these compounds
                                         6-1
-------
are least affected by nondetect observations. Accordingly, most of the analyses in
this section focus on these most prevalent compounds:

 Acetylene                 Methylene chloride         Toluene
 Benzene                  n-Octane                  1,1,1-Trichloroethane
 Carbon tetrachloride        Propylene                 m(/?-Xylene
 Chloromethane            Styrene                   o-Xylene
 Ethylbenzene

Despite the emphasis this section places on the most prevalent compounds, trends
and patterns among some of the least prevalent compounds can also provide
insight into the complex mixture of air pollutants that form ozone.  For example,
Section 6.2 evaluates spatial variations in concentrations of 1,3-butadiene to
comment on the age of the air mass at the NMOC/SNMOC monitoring locations.

Concentration range.  The data summary tables also indicate that only acetylene,
benzene, propylene, toluene, and m,/?-xylene have concentrations exceeding 5
ppbv at one or more monitoring stations. Because sampling occurred only during
the morning hours, it is very likely that the concentration ranges cited in the
summary tables do not represent the concentration range over the course of a day.
Further, due to the limited sampling schedule at Newark, the concentration ranges
shown in Table 6-5 probably do not even represent the actual distribution  of
concentrations for 6:00 a.m. to  9:00 a.m. As a result, these concentration  ranges
should be viewed only as qualitative estimates of the span of ambient air
concentrations at the NMOC/SNMOC monitoring stations.

Central tendency. Table 6-1 through 6-5 present central tendency data for the five
stations that measured VOC. Only those compounds shown in boldface were
detected in more than 50 percent of the VOC samples at the corresponding
monitoring station.  Central  tendency values for all other compounds should be
interpreted with caution, since the higher frequency of nondetects for these
compounds probably biased the central tendency calculation.

To illustrate how central tendency concentrations varied from one location to the
next, Figure 6-1 compares geometric mean concentrations of the 13 most
prevalent VOC across the five monitoring stations. With few exceptions,
geometric mean concentrations of the most prevalent compounds were highest at
NWNJ (Newark) and lowest at CAMS5  (Dallas), with concentrations at the other
monitoring stations taking intermediate values.  Geometric mean concentrations
of acetylene and toluene were greater than 1.0 ppbv at every monitoring station,
and geometric mean concentrations of benzene, propylene, and m,p-xylene were
greater than  1.0 ppbv at two or  more stations. The analyses and interpretations in
                             6-2
-------
              Section 6.2 refer to Figure 4-1 to characterize the sources of VOC pollution and to
              relate the VOC ambient air monitoring data to ozone formation processes.
       •      Variability. According to Tables 6-1 through 6-5, the coefficients of variation for
              most compounds were less than 1.0 at every monitoring station, suggesting that
              ambient air concentrations of these VOC have comparable variability. As
              exceptions, the coefficients of variation for methylene chloride, styrene,
              tetrachloroethylene, and trichloroethylene were often greater than 1.0. The greater
              variability for these compounds suggests that the magnitude of their
              concentrations changes significantly from one  morning to the next. This
              observation is consistent with these compounds originating from sources found at
              discrete locations (e.g., industrial emissions sources), as opposed to those found
              throughout urban areas (e.g., motor vehicle sources). Section 6.2  revisits this
              issue.

       To elaborate on trends and patterns indicated by the VOC summary tables, the following
sections analyze spatial variations and data quality parameters in the VOC monitoring data.
These analyses provide additional context for understanding the summary statistics shown in
Tables 6-1 through 6-5.

6.2    Analyses and Interpretations
       To put the VOC monitoring data into perspective, this section evaluates the composition
of VOC samples (Section 6.2.1), compares VOC concentrations to selected meteorological
parameters (Section 6.2.2), and presents miscellaneous interpretations of the VOC air monitoring
data. Because Section 5 thoroughly characterized trends and patterns for ambient air
concentrations of hydrocarbons, the following analyses focus primarily on trends and patterns for
halogenated hydrocarbons, which cannot be identified by the SNMOC analytical  method.

       6.2.1   Composition of Air Samples
       To evaluate the composition of VOC samples, two analyses were performed—one
focusing on relative concentrations of hydrocarbons and halogenated hydrocarbons, the other
examining the composition of BTEX compounds.  Further analyses on the composition of VOC
samples are likely to be biased by large numbers of nondetects, primarily because more than half
of the VOC were detected in fewer than 25 percent of the samples.

                                          6-3
-------
       As an indicator of the relative quantities of hydrocarbons and halogenated hydrocarbons
at the SNMOC monitoring stations, Figure 6-2 presents the total concentration of the 14 most
prevalent VOC, broken down by contribution from hydrocarbons and halogenated hydrocarbons.
The figure illustrates that, on average, hydrocarbons account for more than 90 percent of the
concentrations of the most prevalent VOC, with halogenated hydrocarbons accounting for less
than 10 percent. Because the VOC analytical method does not identify all airborne compounds
(leaving out, for example, most of the hydrocarbons identified by the SNMOC method),
Figure 6-2 probably does not indicate the actual composition of the two compound groups in
ambient air.  Nonetheless, the figure shows that concentrations of the most prevalent
hydrocarbons at the NMOC/SNMOC monitoring locations far outweighed the total concentration
of the most prevalent halogenated hydrocarbons.1  Despite the relatively minor contributions of
halogenated hydrocarbons to total levels of air pollution, however, this  compound group
continues to be of interest to regulatory agencies due to the toxicity of its individual components
and the reactivity of selected compounds in upper layers of the atmosphere.

       To characterize VOC samples further, Figure 6-3 illustrates how the magnitude and
composition  of BTEX compounds changed with time at the CAMS 13 monitoring station.  (These
compounds accounted for over 60 percent of the overall levels of the most prevalent VOC.)  The
figure highlights two notable trends:  (1) On average, the composition of BTEX compounds  in
the air sampled at CAMS 13 changed little during the summer of 1997, even though the
magnitude of the concentration for these compounds changed significantly.  The relatively
constant ratios—a trend observed at every SNMOC monitoring station—suggest that the same
emissions source, or group of sources, probably contributed to ambient levels of BTEX
compounds throughout the summer. (2) The magnitudes of the BTEX ratios calculated from the
VOC sampling data are nearly identical to those calculated from the SNMOC sampling data (see
Figure 5-4), providing evidence that both the SNMOC and VOC analytical methods measure
       1 In fact, ambient air concentrations of many individual hydrocarbons (e.g., acetylene and toluene) were, on
average, greater than the sum of the most prevalent halogenated compounds.
                                          6-4
-------
concentrations of these compounds accurately. Future NMOC/SNMOC reports will include

more quantitative comparisons between monitoring results from the different methods.


       6.2.2   Comparison to Selected Meteorological Parameters

       The analyses presented in Section 5.2.3 found that ambient air concentrations of

hydrocarbons tended to be independent of wind direction at every NMOC/SNMOC monitoring

station.  To supplement these analyses, 3-hour average observations of wind direction were

compared to corresponding 3-hour average concentrations of the most prevalent VOC at the four

monitoring stations that collected daily samples. Although concentrations of many VOC,

especially those emitted primarily by motor vehicles, were weakly correlated or completely
uncorrelated with wind direction, ambient levels of some VOC exhibited the opposite trend.

Examples of these exceptions include:
             CAMS5. As Figure 6-4 shows, ambient air concentrations of styrene at CAMS5
             were notably higher when winds blew from the south and the southwest (i.e., wind
             directions between 180° and 225°) than when winds blew from any other compass
             direction. This observation suggests that, during the morning hours, styrene at
             CAMS5 probably originates from emissions sources located south to southwest of
             the monitoring station, rather than from motor vehicles or other emissions sources
             typically found all around the monitoring location. No other compound exhibited
             as strong a dependence on wind direction at this station.

             CAMS 13. Of the 13 most prevalent compounds at CAMS 13, tetrachloroethylene
             had the strongest correlation between its ambient air concentration and wind
             direction during the morning hours. According to Figure 6-5, tetrachloroethylene
             was detected at levels ranging from 0.5 ppbv to 5.0 ppbv when winds blew from
             the north, the northeast, the east, and the southeast (i.e., wind directions between
             0° and 135°), but was either not detected or detected at trace levels when winds
             blew from other directions. This trend suggests that the predominant sources of
             tetrachloroethylene near CAMS 13 are probably located in the sector between the
             north and the southeast of the monitoring station. With only eight observations at
             levels greater than 0.5 ppbv, further research is needed to determine whether the
             apparent link between wind direction and concentrations of tetrachloroethylene
             consistently occurs.

             DLTX.  Like the results shown in Figure 6-4 for CAMS5, Figure 6-6 indicates that
             elevated concentrations of styrene at DLTX also occurred most frequently when

                                          6-5
-------
              winds blew from the south and the southwest (i.e., wind directions between 180°
              and 225°). When winds blew from other directions, styrene was usually at trace or
              undetectable levels, except for two peak concentrations observed with winds
              blowing from the north. Thus, the 1997 monitoring data indicate that styrene at
              DLTX primarily originates from emissions sources located south to southwest of
              the monitoring station.

       •      JUMX. Unlike the trends highlighted in Figures 6-4 to 6-6, ambient air
              concentrations of almost all VOC measured at JUMX did not exhibit notable
              correlations with wind direction. For example, Figure 6-7 shows how no obvious
              data trend is apparent between levels of methylene chloride at Juarez and wind
              direction. The lack of correlations probably results from several factors, such as
              the possibility of many different pollution sources in all directions from the
              monitoring station or the possibility that prevailing wind patterns at the El Paso
              International Airport may differ significantly from those at the Juarez monitoring
              station.


       Although Figures 6-4 through 6-7 present data trends for only three pollutants, the

comparisons between wind direction and ambient air concentrations in Sections 4.2.1, 5.2.3, and

in the preceding paragraphs illustrate the utility of an important data analysis tool: correlations

between wind patterns and air quality observations can help distinguish pollutants that appear to

be emitted from sources in discrete directions (e.g., styrene at DLTX and CAMS5) from

pollutants that appear to be emitted from sources throughout an airshed (e.g., NMOC at LINY

and NWNJ).


       6.2.3   Miscellaneous Interpretations
       For additional information on interpreting ambient air monitoring data for halogenated

hydrocarbons, the following discussion comments on some air quality trends observed only for
the five most prevalent compounds:
              Carbon Tetrachloride. Regardless of location and time of year, recent ambient air
              monitoring efforts throughout the United States consistently detect concentrations
              of carbon tetrachloride at levels ranging from 0.06 ppbv to 0.10 ppbv (ERG,
              1998). As Figure 6-1 shows, VOC monitoring data from the 1997 monitoring
              program are consistent with this trend.  The relatively constant levels of carbon
              tetrachloride are believed to result primarily from the compound's resistance to
                                           6-6
-------
              photochemical breakdown: estimates of the half-life of carbon tetrachloride in the
              troposphere range from tens to hundreds of years (ATSDR, 1994).  Thus, once
              emitted to the atmosphere, carbon tetrachloride appears to gradually diffuse to
              regions of lower concentration, rather than decompose or react with other
              pollutants. The absence of notable spatial variations also results from the fact that
              most uses of carbon tetrachloride have been discontinued due in part to an
              international agreement to phase out ozone-depleting chemicals (ATSDR, 1994).

              Chloromethane. Like concentrations of carbon tetrachloride, levels of
              chloromethane varied little among the NMOC/SNMOC monitoring stations (see
              Figure 6-1).  On the other hand, previous year-round studies have observed
              significant spatial variations in ambient air concentrations of chloromethane,
              particularly during the colder winter months (ERG, 1998). The fact that sampling
              for this monitoring program only occurs in the summer most likely explains the
              inconsistency between the current VOC data and selected other studies. It should
              be noted that some studies have estimated that over 90 percent of global releases
              of chloromethane are from natural sources, such as biogenic production by marine
              phytoplankton (ATSDR, 1991 a).

              Methylene Chloride. Though frequently detected, geometric mean ambient air
              concentrations of methylene chloride at CAMS5, DLTX, and JUMX were either
              lower or marginally higher than the compound's detection limit (0.09 ppbv).  At
              CAMS 13 and NWNJ, however, geometric mean concentrations were 0.30 ppbv
              and 0.62 ppbv, respectively.  These spatial variations are best explained by similar
              spatial variations in industrial emissions sources of methylene chloride. In
              support of this hypothesis, the 1995 Toxic Release Inventory (TRI) indicates that
              over 50,000 pounds of methylene chloride were released to the air by facilities
              within 5 miles of both the CAMS 13 and NWNJ monitors,  while less than 25,000
              pounds were  released  by facilities near the CAMS5  and DLTX monitors.2 The
              proximity of the individual sources, as well as other sources that are not required
              to report to TRI, likely accounts for the spatial variations of methylene chloride
              shown in Figure 6-1.

              Tetrachloroethylene. During the 1997 program, both the prevalence and highest
              concentrations of tetrachloroethylene exhibited consistent spatial variations:
              (1) though detected in roughly 75 percent of the samples collected in the
              Dallas-Fort Worth area, tetrachloroethylene was detected in less than 25 percent
              of the samples at Juarez; and (2) the highest concentrations of tetrachloroethylene
              at the monitors in Dallas and Fort Worth were all over 5 times greater than the
              highest level recorded at Juarez. The difference in concentrations between these
        Emissions data for the JUMX monitoring station are not provided because the TRI database does not
account for emissions sources in Mexico.

                                          6-7
-------
              metropolitan areas probably results from differing emissions levels from industrial
              sources, primarily dry cleaners. (Dry cleaners are suspected to account for a
              significant portion of overall releases of tetrachloroethylene to the air in the
              United States [ATSDR, 1997b]).  The relatively low concentrations at JUMX may
              result from the monitoring station being located far from dry cleaners and other
              sources of tetrachloroethylene or the possibility that dry cleaners in Mexico use
              solvents other than tetrachloroethylene.

              1,1,1-Trichloroethane. According to Figure 6-1, geometric mean concentrations
              of 1,1,1-trichloroethane were fairly similar from one station to the next, with
              marginally higher concentrations observed at Newark—the station in the area with
              the most industrial emissions sources (ERG, 1997b).  Although monitoring
              stations located nearer industrial facilities that emit 1,1,1-trichloroethane probably
              have marginally higher geometric mean concentrations, the difference in
              concentrations is too small to conclude exactly which factors most strongly affect
              ambient levels of this compound.  Therefore, perhaps the most notable trend in
              levels of 1,1,1-trichloroethane is the absence of significant spatial variations:
              geometric mean concentrations at the five stations that measured VOC ranged
              only from 0.10 ppbv to 0.18 ppbv.
6.3    Data Quality Parameters

       To characterize the quality of the VOC air monitoring data, Tables 6-6 and 6-7 present

completeness and precision data, respectively, for the 1997 program. According to Table 6-6,

294 of the 309 scheduled sampling events were successfully completed, yielding an overall

completeness figure of 95 percent. Although some sites had higher completeness figures than

others, every NMOC/SNMOC monitoring station had 89 percent completeness or better.

Readers may note that the completeness data for VOC sampling (Table 6-7) is nearly identical to

that for SNMOC sampling (Table 5-9).  The similarity results from the fact that, for each

sampling event, concentrations of VOC and concentrations of SNMOC were measured from the

same stainless steel canister sample; the slight differences in the completeness figures results

from the fact that two samples had valid VOC data, but invalid SNMOC data (due to an error in

laboratory analysis).


       Based on the approach outlined in Section 3.3.2, Table 6-7 presents precision data for the

VOC monitoring. On average, the most prevalent VOC were measured with a precision ranging
                                           6-8
-------
 from 6 percent (for toluene) to 20 percent (for acetylene), and the least prevalent compounds had
 analytical precision ranging from 9 percent (for p-dichlorobenzene and tetrachloroethylene) to 29
 percent (for 1,3-butadiene). These precision data fall well within data quality objectives for the
 analytical method. Overall, the low measurement variability, coupled with the high
 completeness figures, suggests that field sampling teams and laboratory analysts strictly followed
 method specifications to minimize influences of random sampling or analytical errors.
 Accordingly, the VOC monitoring data are believed to be of very high quality.

 6.4    Summary
       The VOC air monitoring data supplement the extensive SNMOC air monitoring data in
 two important ways.  First, trends among the VOC concentrations corroborate several important
 findings of Section 5, such as the consistent profiles of the BTEX compounds, the significant
 increases in hydrocarbon concentrations at CAMS 13, and the similar concentration values for
 compounds identified by both analytical methods. Second, the VOC air monitoring data
 characterize concentrations  of halogenated hydrocarbons—a group of compounds that the
 SNMOC analytical method  cannot identify. Five halogenated hydrocarbons (carbon
tetrachloride, chloromethane, methylene chloride, tetrachloroethylene, and 1,1,1-trichloroethane)
were detected in over half of the VOC samples collected during the  1997 program, but their
combined concentration accounted for a much smaller fraction of total levels of air pollution than
the combined concentration of the most prevalent hydrocarbons. Nonetheless, trends and
patterns among the halogenated hydrocarbons were shown to be consistent with findings from
previous air monitoring studies and predictions based on industrial emissions data.
                                          6-9
-------
                                 Figure 6-1 (Page 1 of 5)
               Geometric Mean Concentrations of the Most Prevalent VOC
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                                           6-11
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                                   Figure 6-1 (Page 3 of 5)
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                                            6-12
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                                   Figure 6-1 (Page 4 of 5)

                Geometric Mean Concentrations of the Most Prevalent VOC
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                                           Table 6-6
                              Completeness of VOC Monitoring
Monitoring Station
Code
CAMS 13
CAMS5
DLTX
JUMX
Location
Fort Worth, TX
Dallas, TX
Dallas, TX
Juarez, Mexico
Totals
Number of Days
When Sampling
Was Attempted
84
84
85
56
309
Number of Days
with Valid
Samples
79
82
83
50
294
Completeness
94%
98%
98%
89%
95%
Note:  The Newark monitoring station collected fewer than 10 VOC samples according to a site-specific
       schedule.  Sampling results for this station are not included in this review of completeness.
       The Juarez monitoring station has notably fewer samples; because it did not start collecting samples
       until July 15. 1997.
                                              6-31
-------
                                           Table 6-7
                      Data Quality Parameters for VOC Measurements
Compound
Acetylene
Benzene
Bromochloromethane
Bromodichloromethane
Bromoform
Bromomethane
1,3-Butadiene
Carbon tetrachloride
Chlorobenzene
Chloroethane
Chloroform
Chloromethane
Chloroprene
Dibromochloromethane
m-Dichlorobenzene
o-Dichlorobenzene
p-Dichlorobenzene
1 , 1 -Dichloroethane
1 ,2-Dichloroethane
trans-l ,2-Dichloroethylene
1 ,2-Dichloropropane
cis-l ,3-Dichloropropylene
trans- 1 ,3-Dichloropropylene
Ethylbenzene
Methylene chloride
tt-Octane
Propylene
Styrene
1 , 1 ,2,2-Tetrachloroethane
Tetrachloroethylene
Toluene
1,1,1 -Tri chloroethane
1,1,2-Trichloroethane
Trichloroethylene
Vinyl chloride
m,p-Xylene
o-Xvlene
Analytical Precision
Relative Percent
Difference
20%
8%
NA
NA
NA
NA
29%
16%
NA
NA
11%
13%
NA
NA
NA
NA
9%
NA
NA
NA
NA
NA
NA
8%
15%
16%
14%
14%
NA
9%
6%
15%
NA
25%
NA
8%
8%
Number of
Observations
73
73
0
0
0
0
43
72
0
0
2
73
0
0
0
0
20
0
0
0
0
0
0
73
57
66
73
51
0
47
72
73
0
10
0
73
72
Sampling and Analytical
Precision
Relative Percent
Difference
8%
6%
NA
NA
NA
NA
20%
12%
NA
NA
0%
6%
NA
NA
NA
NA
3%
NA
NA
NA
NA
NA
NA
7%
15%
13%
8%
22%
NA
7%
8%
10%
NA
12%
NA
7%
7%
Number of
Observations
36
36
0
0
0
0
20
35
0
0
1
36
0
0
0
0
7
0
0
0
0
0
0
36
28
32
36
24
0
23
35
36
0
5
0
36
35
Note:   The number of observations for analytical precision indicates the number of replicates in which the
       compound was detected in both analyses; the number of observations for sampling and analytical
       precision indicates the number of duplicates in which the compound was detected in the four analyses
       of the duplicate samples.  By definition, analytical precision and sampling precision cannot be
       evaluated for compounds  with zero observations, hence compounds with no observations show an
       RPDof'NA."
                                             6-32
-------
7.0    Analysis of Carbonyl Monitoring Results
       This section summarizes the carbonyl ambient air monitoring data collected during the
1997 NMOC/SNMOC program. Like the VOC data, the carbonyl data are useful for evaluating
ambient air concentrations for a subset of organic compounds that the SNMOC analytical method
does not identify. Ambient air concentrations of carbonyls are of interest because carbonyls are
known to participate in the complex series of photochemical reactions that produce ozone.

       During the 1997 program, five NMOC/SNMOC monitoring stations collected carbonyl
samples roughly once a week, but no station collected valid samples on more than nine different
days. As a result, the carbonyl monitoring data are extremely limited in comparison to the large
volumes of NMOC, SNMOC, and VOC monitoring data. The limited number of samples
prevents a statistically significant analysis of many data trends and patterns used earlier in this
report (e.g., correlation analysis, monthly variations, comparisons to selected meteorological
conditions). Therefore, the remainder of this section presents and interprets basic summary
statistics for the carbonyl monitoring results (Section 7.1), comments on likely sources and sinks
of carbonyls in ambient air (Section 7.2), and assesses the quality of the monitoring data
(Section 7.3). The section concludes with a brief summary of the carbonyl data (Section 7.4).

7.1     Data Summary Tables
       Using the data summary parameters discussed in Section 3.1, Tables 7-1 through 7-5
summarize the monitoring results for the five stations that measured carbonyls. Several data
trends are apparent upon careful review of the summary tables:
              Prevalence. Of the 16 compounds identified by the carbonyl analytical method,
              six—acetaldehyde, acetone, butyr/isobutyraldehyde, formaldehyde, and
              propionaldehyde—were detected in more than 75 percent of the samples collected
              at every monitoring station. Summary statistics for these compounds are expected
              to accurately represent the actual distribution of concentrations, since few data
              points were replaced with surrogate concentrations of one-half the detection limit.
              According to the data summary tables, prevalence of carbonyls for the Juarez
              monitoring station was notably lower than that for all other monitoring stations.
              The summary of central tendency data discusses this trend further.
                                          7-1
-------
Concentration range.  During the entire 1997 program, acetaldehyde, acetone, and
formaldehyde were the only carbonyl compounds detected at levels greater than
1.0 ppbv.  Concentrations of all other carbonyls were never measured above this
level. Because monitors generally sampled carbonyls once a week or less,
ambient air concentrations of carbonyls between 6:00 a.m. and 9:00 a.m. likely
reached higher levels (and lower levels) than the highest (and lowest)
concentrations in the data summary tables indicate. Therefore, the concentration
ranges in these tables should be interpreted with caution.

Ambient air concentrations of many carbonyl compounds are known to reach their
highest levels during the early afternoon hours (Brimblecombe, 1996), not during
the scheduled sampling times for the NMOC/SNMOC program. Thus, though
they characterize air samples collected during the morning hours, the summary
statistics in Tables 7-1 through 7-5 probably do not account for the highest
concentrations of carbonyls, which often occur later in the day.

Central tendency. To illustrate spatial variations in the carbonyl monitoring data,
Figure 7-1 compares geometric mean concentrations of the most prevalent
carbonyls. The diagrams in this figure indicate several data trends; most notably,
ambient air concentrations of every compound at JUMX were significantly lower
than those at the other four monitoring stations.  The exact reason for this trend is
not known, but carbonyl levels may be lower because motor vehicles in Juarez
may use fuels of a different composition than those used in the United States.
Recent studies have suggested that vehicles using oxygenated fuels,  as EPA now
requires in several parts of the country, probably emit greater quantities of
aldehydes (a type of carbonyl) than vehicles using fuels with little or no
oxygenated additives (Sterrett, 1995).  Further research into the composition of
fuels used in Juarez and additional air monitoring efforts in the area are needed to
understand why, and to confirm if, ambient air concentrations of carbonyls at
JUMX are relatively low.

Figure 7-1 indicates three other trends:  (1) At every monitoring station, the
geometric mean concentrations of three compounds—acetaldehyde,  acetone, and
formaldehyde—account for over 90 percent of the total carbonyls detected in the
air samples. (2) The relative magnitude of these three compounds was nearly
uniform across the Dallas-Fort Worth monitors: concentrations of acetone were
roughly twice as high as acetaldehyde levels, and concentrations of formaldehyde
were roughly three times as  high. (3) At the monitors in Dallas, Fort Worth, and
Newark, the overall concentration of the most prevalent carbonyls ranges from
approximately 8 to 12 ppbv (or 14 to 23 ppbC).  These levels account for a
significant fraction of the concentration unidentified by the SNMOC method,
which, on average, ranged from 33 to 112 ppbC.
                             7-2
-------
       •      Variability.  As Tables 7-1 through 7-5 show, coefficients of variation of the most
              prevalent carbonyls were almost always lower than 1.0 and were never higher than
              1.15 (valeraldehyde, CAMS5). The relatively low coefficients of variation
              suggest that the most prevalent carbonyls are consistently found in ambient air,
              regardless of changing wind directions.  This trend is inconsistent with carbonyls
              originating from a single emissions source. Rather, the relatively low coefficients
              of variation suggest that carbonyls are emitted from sources, or formed in the
              ambient air, in all directions surrounding the monitoring stations.

       To supplement these general observations, the following sections present general analyses
and interpretations of carbonyl monitoring data and use data quality parameters to characterize
how precisely the concentrations were measured.

7.2    Analyses and Interpretations
       Although too few carbonyl samples were collected during the 1997 NMOC/SNMOC
monitoring program to allow detailed statistical analyses like those in Sections 4.2, 5.2, and 6.2,
conclusions from previous extensive ambient air monitoring programs and research efforts may
help put the current data into context. Previous studies have reported several  different factors
that affect ambient air concentrations  of carbonyls, but most notably: (1) motor vehicles,
combustion sources, and various industrial processes that emit carbonyls directly to the
atmosphere; (2) selected photochemical reactions that form carbonyls in the air, typically from
airborne hydrocarbons; and (3) selected photochemical reactions that consume carbonyls in the
air, generally by photolysis or by reaction with hydroxyl ions (Seinfeld, 1986). The combined
influences of these factors probably explain the  data quality trends shown in Figure 7-1, but the
current monitoring data are insufficient for determining which factors influence ambient levels of
carbonyls most significantly. Further monitoring, including sampling during the winter months
(when photochemical reactivity is at its lowest), are needed to better understand air quality trends
for carbonyls at the NMOC/SNMOC monitoring stations.

7.3    Data Quality Parameters
       Following the project schedule for the 1997 NMOC/SNMOC program, 40 carbonyl
sampling events were successfully completed. Four events involved duplicate sampling, and all

                                          7-3
-------
duplicate samples were analyzed in replicate. As a result, eight observations are available for
estimating analytical precision for carbonyls, and four observations for estimating sampling and
analytical precision. Table 7-6 summarizes these precision data and indicates that analytical
precision for the most prevalent carbonyls (2 to 13 percent) was better than for the least prevalent
compounds (14 to 52 percent).  The precision observed for the most prevalent compounds is
lower than ±20 percent (the measurement guideline of specified in EPA's Compendium
Method), but the precision for the least prevalent compounds is slightly higher than this
guideline. This result is not surprising, because it has been widely recognized that most
environmental monitoring methods become increasingly imprecise (and measurements more
variable) when detecting concentrations at levels near limits of detection.

7.4    Summary
       As Figure 7-1 shows, ambient air concentrations of carbonyls varied significantly among
the NMOC/SNMOC monitoring stations:  ambient levels were notably lower at JUMX than at
the other stations, levels at the three stations in the Dallas-Fort Worth area were generally
similar, and average concentrations at Newark were highest for several carbonyls but relatively
low for others. Despite these differences from one  site to the next, acetaldehyde, acetone, and
formaldehyde consistently accounted for over 90 percent of the total concentration of carbonyls
detected at every monitoring station.  The relatively low coefficients of variation for these
compounds suggests that they are not primarily emitted by a few discrete sources, but further
research is needed to identify the primary sources and sinks of airborne carbonyls at the 1997
NMOC/SNMOC monitoring stations. Like the NMOC, SNMOC, and VOC data collected in this
program, the carbonyl air monitoring data were shown to be very precise, particularly for the
most prevalent compounds.
                                          7-4
-------
                                   Figure 7-1 (Page 1 of 2)
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                                            7-5
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                                           Table 7-6
                    Data Quality Parameters for Carbonyl Measurements
Compound
Acetaldehyde
Acetone
Acrolein
Benzaldehyde
Butyr/Isobutyraldehyde
Crotonaldehyde
2,5-Dimethylbenzaldehyde
Formaldehyde
Hexanaldehyde
Isovaleraldehyde
Propionaldehyde
Tolualdehydes
Valeraldehyde
Analytical Precision
RPD
3%
4%
49%
42%
7%
NA
NA
2%
14%
NA
13%
43%
52%
Number of
Observations
8
8
6
6
8
0
0
8
5
0
6
5
6
Sampling Precision
RPD
10%
6%
52%
60%
20%
NA
NA
7%
23%
NA
4%
42%
25%
Number of
Observations
4
4
3
3
4
0
0
4
2
0
3
2
3
RPD = relative percent difference (see Section 3.3.2)
Notes:  The number of observations for analytical precision indicates the number of replicate analyses in
       which the compound was detected; the number of observations for sampling precision indicates the
       number of duplicate samples in which the compound was detected. By definition, analytical precision
       and sampling precision cannot be evaluated for compounds with zero observations; these compounds
       have an RPD of
        "NA."
       The five most prevalent compounds are shown in boldface.
                                             7-12
-------
8.0    Conclusions and Recommendations

       As indicated throughout this report, data from the NMOC/SNMOC monitoring program

offer a wealth of information for evaluating several factors known to affect ozone formation

processes. The following discussion reviews the main conclusions of this report and presents

recommendations for ongoing NMOC/SNMOC monitoring efforts.


8.1    Conclusions
       Although the NMOC/SNMOC monitoring data alone cannot possibly characterize all

factors that contribute to ozone formation, they suggest the following air quality trends that may

have direct relevance to air pollution control strategies:
             NMOC monitoring data (Section 4). Ambient air monitoring stations in Newark,
             New Jersey, and Long Island, New York, collected NMOC samples from
             6:00 a.m. to 9:00 a.m. every weekday during the summer of 1997. The
             monitoring data, which were shown to be highly precise, indicated that NMOC
             concentrations at Newark (geometric mean, 0.360 ppmC; highest, 2.139 ppmC)
             were consistently higher than  those at Long Island (geometric mean, 0.219 ppmC;
             highest, 0.898 ppmC). Despite these differing magnitudes, NMOC concentrations
             at both stations had similar correlations to selected meteorological conditions:
              ambient levels were generally lower on the most humid mornings, during periods
             of measurable precipitation, and on windy days. Consistent correlations between
             NMOC concentration and temperature and between NMOC concentration and
             wind direction were not observed.  The absence of strong correlations between
             NMOC concentrations and wind direction suggested that many different sources
             located around the monitoring stations (most likely motor vehicles), as opposed to
             one or a few sources, most likely contributed to the detected pollutants. Though
             several different numerical and statistical techniques were used to find patterns
             relating NMOC, NOX, and ozone monitoring data, no consistent results or  data
             patterns were observed.  On average, NMOC concentrations at both Newark and
             Long Island varied little from  one summer month to the next.

             SNMOC monitoring data (Section  5).  During the 1997 program, a monitoring
             station in Juarez, Mexico, and three monitoring stations in the Dallas-Fort Worth
             metropolitan area collected SNMOC samples every weekday morning, and a
             monitoring station in Newark  collected nine SNMOC samples (one each week for
             nine weeks). Laboratory analysis of these samples, which were shown to be
             highly precise, determined concentrations of total NMOC as well as of 80
             hydrocarbons. On average, NMOC concentrations at the CAMS 13, JUMX, and

                                         8-1
-------
NWNJ monitoring stations were quite similar (i.e., between 400 ppbC and
450 ppbC) and approximately twice as high as those at the CAMS5 and DLTX
monitoring stations. The 80 compounds identified by the SNMOC analytical
method consistently comprised about 80 percent of the measured total NMOC
concentrations, suggesting that the 80 hydrocarbons account for over three-fourths
of airborne organic compounds at the five monitoring stations.

Not surprisingly, the composition of air samples differed among the five
NMOC/SNMOC monitoring stations. However, many compounds (acetylene,
n-butane, ethane, ethylene, isopentane, n-pentane, propane, and toluene) had
relatively high geometric mean concentrations at all five monitoring stations; and
aromatic compounds typically accounted for 10-15 percent of the total identified
SNMOC, while olefmic compounds accounted for 20-30 percent,  and alkanes
accounted for 55-70 percent. Consistent with a finding from the 1996
NMOC/SNMOC report, ratios of BTEX compounds suggested that emissions
from motor vehicles probably contributed significantly to the concentrations of
hydrocarbons detected in the 1997 program.  The BTEX ratios also provided
evidence that the air mass at CAMS 13 was "older" and possibly had a greater
influence by long-range transport than did the other monitoring stations in the
Dallas-Fort Worth area.  Though the relatively greater composition of alkanes at
CAMS 13 supports this hypothesis, further research is  needed to confirm the
extent to which long-range transport affects air quality at the NMOC/SNMOC
monitoring stations.

Consistent with findings for the NMOC monitoring data, total NMOC
concentrations measured by the  SNMOC analytical method were lowest on the
most humid mornings, during periods of measurable precipitation, and on the
windiest days.  The exact reason (or reasons) for the correlation with humidity is
not known, but the correlation with precipitation is consistent with theories of wet
deposition and the correlation with wind speed is consistent with the enhanced
atmospheric dispersion that is known to occur as wind speeds increase.  With one
exception, NMOC concentrations appeared to be weakly correlated, if not
completely  uncorrelated, with observations of temperature and wind direction. At
the JUMX monitoring station, however,  ambient air concentrations of NMOC on
warmer mornings (i.e., temperatures greater than or equal to 75 degrees
Fahrenheit) were nearly twice as high as those on cooler mornings. Statistical
analyses of additional monitoring data are needed to confirm that the relationship
between temperature and NMOC concentration at JUMX is not a statistical
anomaly.

Several statistical analyses and numerical analyses could not identify consistent
data trends between concentrations of ozone, NMOC, and NOX across all
monitoring stations. Nonetheless, these  analyses provided some evidence that air
                             8-2
-------
masses at CAMS 13 and, to a lesser extent, at JUMX may be "NOX limited," but
more sophisticated analyses of the air monitoring data and meteorological
conditions are recommended to confirm this finding.

Ambient air concentrations of hydrocarbons at most of the NMOC/SNMOC
monitoring stations varied little from one month to the next, but levels at the
CAMS 13 increased dramatically during the 1997 program: the monthly average
concentration at CAMS 13 in August was roughly 2.5 times higher than the June
and July levels, and the monthly average concentration in September was almost 4
times higher than the June and July levels. Given the relative decrease in
olefins—the most reactive subset of hydrocarbons—as concentrations at CAMS 13
increased, the data suggest that long-range transport of hydrocarbons probably
contributed to the observed monthly variations. However, the exact reason (or
reasons) for this notable increase is not known; further research should attempt to
determine if changes in existing emissions sources or the presence of new
emissions sources may account for the unique monthly variations at CAMS 13.

VOC monitoring data (Section 6).  To make best use of the whole air samples,
every canister collected during the 1997 NMOC/SNMOC program was analyzed
for both the 80 target SNMOC compounds and the 38 target VOC.  This improved
analytical technique, which had not been adopted in previous NMOC/SNMOC
monitoring efforts, provided extensive air monitoring data for halogenated
hydrocarbons—a group of organic compounds that the  SNMOC analytical method
cannot identify. Although the most prevalent halogenated hydrocarbons (carbon
tetrachloride, chloromethane, methylene chloride, and 1,1,1 -trichloroethane)
identified by the VOC analytical method were shown to account for a small
portion of the total NMOC, air quality trends for some of these compounds were
quite consistent with those reported in the scientific  literature.  At some
monitoring stations, elevated ambient air concentrations of a few VOC,
particularly styrene, tended to occur only when winds blew from certain
directions.  These correlations suggested that some compounds probably
originated from one or a few upwind emissions sources, not from a fleet of motor
vehicles.

Carbonyl monitoring data (Section 7).  Five NMOC/SNMOC monitoring stations
collected carbonyl samples roughly once a week, but no station collected valid
samples on more than nine different days. Despite the limited data, the carbonyl
sampling results characterize ambient levels of selected aldehydes and one ketone
(acetone)—a group of compounds that the SNMOC  analytical method cannot
identify.  Of the 16 compounds identified by the carbonyl analytical method, three
(acetaldehyde, acetone, and formaldehyde) accounted for over 90 percent of the
total carbonyls detected in the air samples. In  general, ambient air concentrations
of carbonyls were notably lower at the Juarez monitoring station than at the other
                             8-3
-------
             four stations that collected carbonyl samples, but the reason for this spatial
             variation is not known. Further monitoring and data analyses are needed to
             determine the factors that best explain air quality trends for carbonyls at the
             NMOC/SNMOC monitoring stations.
8.2    Recommendations
       Based on lessons learned from analyzing the 1997 NMOC/SNMOC monitoring data, a
number of improvements are recommended for future national ambient air monitoring efforts:
             Enhance the VOC analytical method to measure ambient air concentrations of
             oxygenated compounds.  Knowing that emissions from motor vehicles account for
             a large fraction of airborne hydrocarbons in urban areas, future NMOC/SNMOC
             monitoring efforts should attempt to characterize a wider range of compounds
             typically found in motor vehicle exhaust.  With EPA and more states requiring the
             use of reformulated gasoline, which typically contains oxygenated compounds
             (such as methyl tertiary-butyl ether and ethanol), there has been growing concern
             regarding the extent to which the oxygenated compounds are found in the
             environment. To help address these concerns, the analytical method should be
             modified to enable measurement of selected oxygenated compounds.  This
             improvement is expected to be implemented during the 1998 NMOC/SNMOC
             program.

             Investigate the feasibility of offering continuous monitoring or revised sampling
             schedules as a program option. Though the NMOC/SNMOC monitoring
             program currently characterizes air quality extensively for sponsoring agencies,
             sampling schedules could be modified to offer even greater insight into the
             complex nature of air pollution. For instance, scheduling options for weekend
             sampling, sampling during different hours of the day (in addition to sampling
             from 6:00 a.m. to 9:00 a.m.), or even continuous sampling would almost certainly
             reveal notable air quality trends that cannot be characterized with the current
             sampling schedules. Future NMOC/SNMOC programs should investigate the
             feasibility and cost of providing these alternate sampling options.

             Recommend additional analyses of the NMOC/SNMOC monitoring data. Though
             extensive, the analyses in this report do not provide a comprehensive account of
             air quality near the NMOC/SNMOC monitoring stations. As a result, sponsoring
             agencies are encouraged to supplement the analyses in this report with additional
             analyses of factors that affect ozone formation processes, such as comparing air
             quality trends to changes in emissions inventories, using regional dispersion
             models to predict ozone  concentrations, and examining how levels of air pollution
                                          8-4
-------
vary with a wider range of meteorological conditions (e.g., mixing heights, solar
radiation, and upper-air wind patterns).

Encourage continued participation in the NMOC/SNMOC program.  Although
NMOC and SNMOC monitoring data thoroughly characterize ambient air quality
during the summer months, state and local agencies can assess long-term trends in
levels of air pollution only through continued participation in similar ambient air
monitoring efforts. Because long-term trends can indicate the effectiveness of
pollution control strategies and suggest whether air quality is improving or
degrading, sponsoring agencies are encouraged to develop thorough monitoring
programs or to continue participating in NMOC/SNMOC monitoring efforts. For
insight into these long-term trends, the 1998 NMOC/SNMOC report will focus
almost exclusively on how levels of air pollution changed from one year to the
next.
                             8-5
-------
 9.0    References

 ATSDR. 1994.  "lexicological Profile for Carbon Tetrachloride." U.S. Department of Health &
       Human Services, Agency for Toxic Substances and Disease Registry.  September, 1994.

 ATSDR, 1997a. "Toxicological Profile for Chloromethane." U.S. Department of Health &
       Human Services, Agency for Toxic Substances and Disease Registry.  September, 1997.

 ATSDR, 1997b. "Toxicological Profile for Tetrachloroethylene." U.S. Department of Health &
       Human Services, Agency for Toxic Substances and Disease Registry.  September, 1997.

 Brimblecombe, 1996. "Air Composition & Chemistry." Second edition. University Press:
       Cambridge, England. 1996.

 Carter, 1994.  "Development of Ozone Reactivity Scales for Volatile Organic Compounds."
       Journal of the Air and Waste Management Association 44: 881-899. 1994.

 Conner, Lonneman, Seila,  1995. "Transportation-Related Volatile Hydrocarbon Source Profiles
       Measured in Atlanta." Teri L. Conner, William A. Lonneman, Robert L. Seila.  Journal
       of the Air and Waste Management Association 45: 383-394.  1995.

 ERG, 1996. "1995 Nonmethane Organic Compounds and Speciated Nonmethane Organic
       Compounds Monitoring Programs." Eastern Research Group, Inc. Prepared for U.S.
       Environmental Protection Agency, Office of Air Quality Planning and Standards.
       December 1996.

ERG, 1997a. " 1995 Urban Air Toxics Monitoring Program." Eastern Research Group, Inc.
       Prepared for U.S Environmental Protection Agency, Office of Air Quality Planning and
       Standards.  January 1997.

ERG, 1997b. "1996 Nonmethane Organic Compound and Speciated Nonmethane Organic
       Compound Monitoring Program."  Eastern Research Group, Inc. Prepared for U.S.
       Environmental Protection Agency, Office of Air Quality Planning and Standards.
       November, 1997.

ERG, 1998. " 1998 Urban Air Toxics Monitoring Program (UATMP)."  Eastern Research
       Group, Inc. Prepared for U.S. Environmental Protection Agency, Office of Air Quality
       Planning and Standards.  October, 1998.

FR, 1984.  "Definition and Procedure for the Determination of the Method Detection Limit—
       Revision 1.1." Federal Register 49/209.  October 26, 1984.
                                        9-1
-------
SGD, 1996. "Street Guide and Directory: Ciudad Juarez, Chihuahua, Mexico."  Index
       Publications, Inc., El Paso, TX.  1996.

Sonoma, 1996. "PAMS Data Analysis Workshop: Dlustrating the Use of PAMS Data to Support
       Ozone Control Programs." Sonoma Technology, Inc. Prepared for U.S. Environmental
       Protection Agency, Office of Air Quality Planning and Standards. October 1996.

Sterrett, 1995. "Alternative Fuels and the Environment." Edited by Frances Sterrett. Lewis
       Publishers, Inc. 1995.

USDOC, 1993. "1990 Census of Population and Housing." U.S. Department of Commerce,
       Bureau of the Census. July 1993.

USEPA, 1984a.  "Determination of Volatile Organic Compounds (VOCs) in Ambient Air Using
       SUMMA® Passivated Canister Sampling and Gas Chromatographic Analysis." U.S.
       Environmental Protection Agency, Quality Assurance Division, Environmental
       Monitoring Systems Laboratory. June 1984.

USEPA, 1984b.  "Determination of Formaldehyde in Ambient Air Using Adsorbent Cartridge
       Followed by High Performance Liquid Chromatography." U.S. Environmental Protection
       Agency, Quality Assurance Division, Environmental Monitoring Systems Laboratory.
       June 1984.

USEPA, 1988. "Method for the Determination of Non-Methane Organic Compounds (NMOC)
       in Ambient Air Using Cryogenic Preconcentration and Direct Flame lonization Detection
       (PDFID)."  U.S. Environmental Protection Agency, Quality Assurance Division,
       Environmental Monitoring Systems Laboratory.  May 1988.

USEPA, 1995. "User's Guide for the Industrial Source Complex (ISC3) Dispersion Models:
       Volume n - Description of Model Algorithms." U.S. Environmental Protection Agency,
       Office of Air Quality Planning and Standards. September, 1995.

USEPA, 1996a.  "PAMS Data Analysis Workshop: Illustrating the Use of PAMS Data to
       Support Ozone Control Programs." Prepared by Sonoma Technology, Inc., for U.S.
       Environmental Protection Agency. October, 1996.

USEPA, 1996b.  "Photochemical Assessment Monitoring Stations:  1996 Data Analysis Results
       Report."  U.S. Environmental Protection Agency, Office  of Air Quality Planning and
       Standards.  October 1996.

USEPA, 1998. "NOX: How Nitrogen Oxides Affect the Way We Live and Breathe." U.S.
       Environmental Protection Agency, Office of Air Quality  Planning and Standards.
       September  1998.
                                        9-2
-------
                         LINY-97
Long Island, New York, 1997 NMOC Results
SITE
CODE
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
JNY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
INY
II L'NY
LINY
I LINY
SAMPLE
ID
9432
9437
9449
9460
9461
9488
9492
9534
9527
9539
9548
9565
9573
9588
9592
9640
9676
9681
9690
9695
9719
9822
9824
9899
9910
9954
9955
9954
9955
9975
10027
10038
10056
10057
10056
10057
10044
10066
10204
10205
10204
10205
10252
10292
10304
10313
10314
10313
10314
10425
10426
10414
10423
COLLECTION
DATE
6/2/97
6/4/97
6/5/97
6/6/97
6/9/97
6/10/97
6/11/97
6/12/97
6/13/97
6/16/97
6/17/97
6/19/97
6/20/97
6/23/97
6/24/97
6/25/97
6/26/97
6/27/97
6/30/97
7/1/97
7/2/97
7/3/97
7/7/97
7/9/97
7/10/97
7/11/97
7/11/97
7/11/97
7/11/97
7/14/97
7/15/97
7/16/97
7/17/97
7/17/97
7/17/97
7/17/97
7/18/97
7/21/97
7/23/97
7/23/97
7/23/97
7/23/97
7/24/97
7/25/97
7/28/97
7/29/97
7/29/97
7/29/97
7/29/97
7/30/97
7/31/97
8/1/97
8/4/97
AVERAGE
CONC.
0.147
0.143
0.343
0.199
0.639
0.383
0.288
0.586
0.198
0.309
0.367
0.358
0.189
0.251
0.196
0.409
0.234
0.280
0.270
0.169
0.171
0.140
0.241
0.230
0.110
0.205
0.194
0.172
0.176
0.594
0.571
0.205
0.429
0.451
0.419
0.405
0.390
0.284
0.222
0.200
0.258
0.248
0.083
0.069
0.253
0.118
0.128
0.097
0.133
0.107
0.329
0.328
0.092
                                    June 1997 LINY NMOC Data
                           O 0.700
                           I 0.600
                           £ 0.500
                           § 0.400
                           I 0.300
                           | 0.200
                           | 0.100
                           O 0.000
                                 6/2/97    6/9/97   6/16/97  6/23/97  6/30/97
                                              Date Sampled
                                       July 1997 UNY NMOC Data
                            0.700
                            0.000
                               7/1/97
                                       7/8/97
                                               7/15/97
                                                       7/22/97
7/29/97
                         1 Of 2
-------
                         LINY-97
Long Island, New York, 1997 NMOC Results
SITE
CODE
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
LINY
SAMPLE
ID
10424
10423
10424
10518
10517
10564
10565
10598
10654
10599
10679
10680
10681
10680
10681
10693
10696
10702
10864
10865
10864
10865
10860
10873
10907
10959
10960
10959
10960
10965
11020
11031
11046
11117
11124
11188
11217
11255
11288
11293
11294
11293
11294
11311
11322
11351
11364
11370
11383
11386
11425
11433
11440
11450
11474
COLLECTION
DATE
8/4/97
8/4/97
8/4/97
8/5/97
8/6/97
8/7/97
8/8/97
8/11/97
8/12/97
8/13/97
8/14/97
8/15/97
8/15/97
8/15/97
8/15/97
8/18/97
8/19/97
8/20/97
8/21/97
8/21/97
8/21/97
8/21/97
8/22/97
8/25/97
8/26/97
8/27/97
8/27/97
8/27/97
8/27/97
8/28/97
8/29/97
9/2/97
9/3/97
9/4/97
9/5/97
9/8/97
9/10/97
9/11/97
9/12/97
9/15/97
9/15/97
9/15/97
9/15/97
9/16/97
9/17/97
9/18/97
9/19/97
9/22/97
9/23/97
9/24/97
9/25/97
9/26/97
9/29/97
9/30/97
10/1/97
AVERAGE
CONC.
0.095
0.100
0.109
0.092
0.131
0.472
0.343
0.266
0.098
0.094
0.192
0.197
0.196
0.185
0.220
0.088
0.160
0.675
0.078
0.108
0.085
0.101
0.177
0.533
0.542
0.275
0.271
0.263
0.259
0.143
0.218
0.291
0.199
0.095
0.270
0.129
0.078
0.054
0.256
0.339
0.336
0.304
0.307
0.494
0.186
0.269
0.653
0.381
0.130
0.079
0.898
0.295
0.105
0.105
0.184
                                       August 1997 LJNY NMOC Data
                              0.000
                                 8/1/97
                                          8/8/97
8/15/97
                                                          8/22/97
                  8/29/97
                                        September 1997 NMOC Data
                              1.000
                              0.000
                                 9/2/97
                                         9/9/97
9/16/97
9/23/97
9/30/97
                          2 Of 2
-------
                         NWNJ-97
Newark, New Jersey, 1997 NMOC Results
SITE
CODE
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
SAMPLE
ID
9446
9442
9445
9464
9487
9503
9504
9530
9538
9566
9560
9563
9574
9589
9591
9679
9678
9694
9709
9705
9720
9818
9817
9838
9911
9912
9956
10039
10040
10039
10040
10042
10024
10065
10058
10059
10058
10059
10178
10176
10184
10290
10375
10372
10370
10371
10370
10371
10378
10381
10417
10541
10542
COLLECTION
DATE
6/2/97
6/3/97
6/4/97
6/6/97
6/9/97
6/10/97
6/11/97
6/12/97
6/13/97
6/16/97
6/17/97
6/18/97
6/19/97
6/20/97
6/23/97
6/24/97
6/25/97
6/26/97
6/27/97
6/30/97
7/1/97
7/2/97
7/3/97
7/7/97
7/8/97
7/9/97
7/10/97
7/11/97
7/11/97
7/11/97
7/11/97
7/14/97
7/15/97
7/16/97
7/17/97
7/17/97
7/17/97
7/17/97
7/18/97
7/21/97
7/22/97
7/24/97
7/25/97
7/28/97
7/29/97
7/29/97
7/29/97
7/29/97
7/30/97
7/31/97
8/1/97
8/4/97
8/4/97
AVERAGE
CONG.
0.195
0.197
0.098
0.388
0.401
0.738
0.230
0.408
0.357
0.468
0.423
0.260
0.487
0.317
0.200
0.361
1.404
0.425
0.182
0.475
0.426
0.365
0.548
0.427
0.781
0.415
0.165
0.390
0.376
0.399
0.363
0.474
0.412
0.176
0.701
0.741
0.699
0.746
0.350
0.390
0.194
0.213
0.154
0.369
0.245
0.204
0.220
0.203
0.208
0.325
0.458
0.203
0.212
                                        June 1997 NWNJ NMOC Data
                                0.000
                                   6/2/97   6/9/97   6/16/97   6/23/97  6/30/97
                                        July 1997 NWNJ NMOC Data
                              U
                              Q.
                              O.
0.900
0.800
0.700
0.600
0.500
0.400
0.300
0200
0.100
0.000
                                   7/1/97   7/8/97   7/15/97  7/22/97  7/29/97
                          1 Of 2
-------
                       NWNJ-97
Newark, New Jersey, 1997 NMOC Results
SITE
CODE
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
NWNJ
SAMPLE
ID
10541
10542
10519
10556
10557
11133
11132
10650
10668
10689
10690
10691
10690
10691
10701
10703
10872
10866
10867
10866
10867
10956
10957
10954
11013
11014
11013
11014
11015
11048
11120
11126
11215
11233
11234
11233
11234
11282
11280
11309
11326
11327
11326
11327
11324
11362
11361
11368
11399
11400
11434
11439
11448
11447
11466
COLLECTION
DATE
8/4/97
8/4/97
8/5/97
8/6/97
8/7/97
8/8/97
8/11/97
8/12/97
8/13/97
8/14/97
8/15/97
8/15/97
8/15/97
8/15/97
8/18/97
8/19/97
8/20/97
8/21/97
8/21/97
8/21/97
8/21/97
8/22/97
8/25/97
8/26/97
8/27/97
8/27/97
8/27/97
8/27/97
8/28/97
8/29/97
9/3/97
9/4/97
9/5/97
9/9/97
9/9/97
9/9/97
9/9/97
9/10/97
9/11/97
9/12/97
9/15/97
9/15/97
9/15/97
9/15/97
9/16/97
9/17/97
9/18/97
9/19/97
9/22/97
9/23/97
9/24/97
9/25/97
9/26/97
9/29/97
9/30/97
AVERAGE
CONC.
0.214
0.204
0.203
0.237
0.407
0.515
0.312
0.086
0.288
0.259
0.429
0.466
0.492
0.428
0.117
2.139
0.673
0.355
0.359
0.385
0.377
0.871
0.834
0.793
0.600
0.599
0.584
0.620
0.282
0.359
0.143
0.138
0.425
0.253
0.249
0.254
0.249
0.290
0.259
0.363
0.487
0.510
0.477
0.467
0.745
1.054
0.205
0.633
0.540
0.469
0.214
0.879
0.605
0.660
0.305
                                     August 1997 NWNJ NMOC Data
                              2500
                            u
                              0.000
                                 8/1/97   8/8/97   8/15/97   8/22/97  8/29/97
                                   September 1997 NWNJ NMOC Data
                              0.000
                                 9/3/97   9/10/97  9/17/97  9/24/97
                        2 Of 2
-------
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                   55°
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                                                   W Z CM «' £ <-  S>
                m 10 10
                ° C n
                ^ CO A
-------
    1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                          TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1-DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 -TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
Dl BROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m.p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 -TETRACHLOROETHANE
o- XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
DLTX 9434
6/2/97
7/21797
K/LGT010
ppbv
6.72
2.69
0.60
ND
0.42
ND
ND
0.36
ND
ND
ND
ND
ND
ND
0.17
1.70
0.09
ND
ND
0.28
ND
ND
ND
3.51
ND
0.20 U
0.09 U
ND
0.65
2.00
ND
0.14
ND
0.91
ND
0.08 U
ND
DLTX 9438
6/3/97
7/21/97
K/LGT011
ppbv
2.43
0.86
0.47
ND
0.07 U
0.07 U
ND
0.23
ND
ND
ND
ND
ND
ND
0.13
0.63
0.08
ND
ND
0.23
ND
ND
ND
2.10
ND
0.13 U
0.14 U
ND
0.23
0.64
ND
0.07 U
ND
0.36
ND
ND
ND
DLTX 9450
6/4/97
7/21/97
K/LGT012
ppbv
2.63
0.83
0.88
ND
ND
ND
ND
0.18
ND
ND
ND
ND
ND
ND
0.14
0.60
0.08
ND
ND
0.08
ND
ND
ND
1.79
ND
0.14 U
0.06 U
ND
0.33
1.11
ND
ND
ND
0.47
ND
ND
ND
U = Less than the detection limit.
* = Vacuum Criteria Exceeded
# = Sample Voided in Field
1 of?
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                         TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
RLE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 -DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 -DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 -TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 -TETRACHLOROETHANE
o-XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
DLTX9459
6/5/97
7/21/97
K/LG%007
ppbv
2.35
0,79
0.42
ND
0.01 U
ND
ND
0.12
ND
ND
ND
ND
ND
ND
0.11
0.60
0.07
ND
ND
ND
ND
ND
ND
1.66
ND
0.15 U
0.10 U
ND
0.38
1.33
ND
ND
ND
0.48
ND
ND
ND
DLTX 9466
6/6/97
7/21/97
K/LGU005
ppbv
5.52
1.38
0.56
ND
0.13
ND
ND
0.24
ND
ND
ND
ND
ND
ND
0.09
0.98
0.08
ND
ND
ND
ND
ND
ND
1.76
ND
0.10 U
0.06 U
ND
0.29
0.91
ND
0.06
ND
0.43
ND
ND
ND
DLTX 9486
6/9/97
7/22/97
K/LGU012
ppbv
6.76
2.02
0.93
ND
0.27
0.08 U
ND
ND
ND
ND
ND
ND
ND
ND
0.72
1.56
0.14
ND
ND
0.18
ND
ND
ND
3.97
ND
0.27
0.31
ND
0.78
2.54
ND
0.10
ND
1.01
ND
0.06 U
ND
U = Less than the detection limit.
* = Vacuum Criteria Exceeded
# = Sample Voided in Field
2of7
                                                                     6dftx.xls
-------
    1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                          TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1-DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2-DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o- XYLENE
m-DICHLOROBENZENE
p • DICHLOROBENZENE
o - DICHLOROBENZENE
DLTX 9493
6/10/97
7/22/97
K/LGU011
ppbv
2.57
0.81
0.53
ND
0.07 U
ND
ND
0.17
ND
ND
ND
ND
0.03 U
ND
0.15
0.60
0.08
ND
ND
ND
ND
ND
ND
1.65
ND
0.08 U
0.15 U
ND
0.28
0.96
ND
ND
ND
0.41
ND
ND
ND
DLTX 9532
6/11/97
7/22/97
K/LGU014
ppbv
7.22
2.52
0.65
ND
0.27
ND
ND
1.92
ND
ND
ND
ND
0.09
ND
0.24
1.57
0.09
ND
ND
ND
ND
ND
ND
6.78
ND
0.39
0.20 U
ND
0.67
2.06
ND
0.09 U
ND
0.96
ND
0.07 U
ND
DLTX 9528
6/12/97
7/22/97
K/LGV005
ppbv
2.19
0.90
0.58
ND
ND
ND
ND
0.17
ND
ND
ND
ND
ND
ND
0.12
0.61
0.08
ND
ND
ND
ND
ND
ND
1.40
ND
0.08 U
0.04 U
ND
0.24
0.77
ND
0.10
ND
0.33
ND
ND
ND
U = Less than the detection limit.
* = Vacuum Criteria Exceeded
# = Sample Voided in Field
3 of 7
                                                                     odttxjds
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                         TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
RLE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1-DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DtCHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 -TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m.p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o-XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
DLTX 9546
6/13/97
7/21/97
K/LGU009
ppbv
1.19
0.44
0.79
ND
ND
ND
ND
0.04 U
ND
ND
ND
ND
ND
ND
0.08
0.32
0.09
ND
ND
ND
ND
ND
ND
0.92
ND
0.03 U
ND
ND
0.10 U
0.28
ND
0.03 U
ND
0.13
ND
ND
ND
DLTX 9543
6/16/97
7/23/97
K/LGV012
ppbv
0.99
0.43
1.43
ND
ND
ND
ND
0.01 U
ND
ND
ND
ND
ND
ND
0.11
0.55
0.07
ND
ND
ND
ND
ND
ND
0.59
ND
ND
ND
ND
0.08 U
0.26
ND
ND
ND
0.12
ND
ND
ND
DLTX 9562
6/17/97
7/23/97
K/LGV013
ppbv
1.26
0.49
0.60
ND
ND
ND
ND
0.08 U
ND
ND
ND
ND
ND
ND
0.14
0.33
0.08
ND
ND
ND
ND
ND
ND
0.82
ND
0.10 U
0.04 U
ND
0.12
0.34
ND
ND
ND
0.16
ND
ND
ND
U = Less than the detection limit.
* = Vacuum Criteria Exceeded
# = Sample Voided in Field
4 of 7
                                                                     Wltxxts
-------
    1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                         TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1-DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o-XYLENE
m - DICHLOROBENZENE
p-DICHLOROBENZENE
o - DICHLOROBENZENE
DLTX 9564
6/18/97
7/23/97
K/LGV016
ppbv
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
DLTX 9577
6/19/97
7/23/97
K/LGV020
ppbv
6.78
1.24
0.68
ND
0.13
ND
ND
0.11
ND
ND
ND
ND
0.04 U
ND
0.11
0.91
0.09
ND
ND
ND
ND
ND
ND
2.27
ND
0.10 U
0.04 U
ND
0.35
1.03
ND
0.29
ND
0.49
ND
ND
ND
DLTX 9590
6/20/97
7/24/97
K/LGW016
ppbv
4.29
0.78
0.71
ND
ND
ND
ND
0.05 U
ND
ND
ND
ND
ND
ND
0.10
0.60
0.07
ND
ND
ND
ND
ND
ND
1.44
ND
0.06 U
0.02 U
ND
0.24
0.72
ND
0.19
ND
0.33
ND
ND
ND
U = Less than the detection limit.
* = Vacuum Criteria Exceeded
# = Sample Voided in Field
5 of 7
                                  6dltx.xls
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                         TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 -OICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 • DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 -TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o- XYLENE
m - DICHLOROBENZENE
p - DiCHLOROBENZENE
o - DICHLOROBENZENE
DLTX 9594
6/23/97
7/24/97
K/LGW010
ppbv
1.45
0.99
0.57
ND
0.07 U
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.09
0.42
0.08
ND
ND
0.07
ND
ND
ND
0.85
ND
0.06 U
ND
ND
0.30
1.02
ND
0.11
ND
0.44
ND
ND
ND
DLTX 9593
6/24/97
7/24/97
K/LGW009
ppbv
2.08
0.64
0.62
ND
ND
ND
ND
0.07 U
ND
ND
ND
ND
ND
ND
0.08
0.40
0.08
ND
ND
ND
ND
ND
ND
0.63
ND
0.03 U
ND
ND
0.09 U
0.28
ND
ND
ND
0.14
ND
ND
ND
DLTX 9677
6/25/97
7/23/97
K/LGW004
ppbv
5.11
2.46
0.64
ND
0.26
ND
ND
0.47
ND
ND
ND
ND
0.04 U
ND
0.18
1.22
0.07
ND
ND
0.03 U
ND
ND
ND
3.05
ND
0.14 U
0.16 U
ND
0.56
1.81
ND
0.13
ND
0.82
ND
ND
ND
U = Less than the detection limit.
* = Vacuum Criteria Exceeded
# = Sample Voided in Field
6 of 7
-------
    1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                          TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1-DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 -TETRACHLOROETHANE
o-XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
DLTX
6/26/97
ppbv
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
Ik
*
*
*
*
*
•
*
*
*
*
*
*
*
*
*
*
*
*
*
*
DLTX 9689
6/27/97
7/25/97
K/LGX011
ppbv
5.12
1.59
0.76
ND
0.06 U
ND
ND
0.14
ND
ND
ND
ND
0.03 U
ND
0.10
0.87
0.07
ND
ND
ND
ND
ND
ND
1.81
ND
0.09 U
0.10 U
ND
0.25
0.81
ND
0.16
ND
0.40
ND
ND
ND
DLTX 9691
6/30/97
7/25/97
K/LGX010
ppbv
1.74
0.78
0.55
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.07
0.46
0.07
ND
ND
ND
ND
ND
ND
0.83
ND
0.03 U
ND
ND
0.13
0.39
ND
ND
ND
0.20
ND
ND
ND
U = Less than the detection limit.
* = Vacuum Criteria Exceeded
# = Sample Voided in Field
7 of 7
                                                                     6cWxjds
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                       TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADlENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1-OICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TR1CHLOROETHYLENE
c\s - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 -TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o- XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o • DICHLOROBENZENE
DLTX 9696
7/1/97
7/24/97
L7GX008
ppbv
1.15
0.53
0.61
ND
ND
ND
ND
0.03 U
ND
ND
ND
ND
ND
ND
0.08
0.32
0.07
ND
ND
ND
ND
ND
ND
0.72
ND
0.02 U
ND
ND
0.10 U
0.28
ND
ND
ND
0.13
ND
ND
ND
DLTX 9704
7/2/97
7/28/97
L7GI006
ppbv
1.73
0.75
0.56
ND
0.04 U
ND
ND
0.06 U
ND
ND
ND
ND
ND
ND
0.08
0.47
0.08
ND
ND
ND
ND
ND
ND
0.85
ND
ND
0.05 U
ND
0.17
0.56
ND
ND
ND
0.25
ND
ND
ND
DLTX 9820
7/3/97
8/1/97
L7G%011
ppbv
1.01
0.44
0.50
ND
ND
ND
ND
0.01 U
ND
ND
ND
ND
ND
ND
0.07
0.32
0.08
ND
ND
ND
ND
ND
ND
0.73
ND
ND
ND
ND
0.09 U
0.27
ND
ND
ND
0.11
ND
ND
ND
u = Less tnan the detection limit.
                               1of12
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                       TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 -DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TR1CHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o-XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
DLTX 9837
7/7/97
7/31/97
L7G%009
ppbv
8.17
0.73
0.60
ND
0.04 U
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.08
0.66
0.07
ND
ND
ND
ND
ND
ND
1.26
ND
0.04 U
ND
ND
0.21
0.65
ND
ND
ND
0.26
ND
ND
ND
DLTX 9835
7/8/97
7/31/97
L7G%008
ppbv
4.75
0.75
0.66
ND
0.01 U
ND
ND
0.03 U
ND
ND
ND
ND
ND
ND
0.06
0.51
0.07
ND
ND
ND
ND
ND
ND
1.07
ND
0.05 U
ND
ND
0.18
0.53
ND
0.13
ND
0.25
ND
ND
ND
DLTX 991 5
7/9/97
8/1/97
L7G%014
ppbv
4.87
0.78
0.51
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.06
0.72
0.07
ND
ND
ND
ND
ND
ND
1.77
ND
0.06 U
0.03 U
ND
0.20
0.58
ND
0.17
ND
0.26
ND
ND
ND
U = Less than the detection limit.
                                2 of 12
                                                                Tdtocxls
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                       TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 • DICHLOROETHYLENE
1,1-DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N -OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o- XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
0 - DICHLOROBENZENE
DLTX 991 4
7/10/97
8/31/97#
L7H#035
ppbv
1.02
0.54
0.28
ND
0.03 U
ND
ND
0.07 U
ND
ND
ND
ND
ND
ND
0.11
0.47
0.07
ND
ND
ND
ND
ND
ND
1.12
ND
0.04 U
0.02 U
ND
0.17
0.43
ND
0.08 U
ND
0.25
ND
ND
ND
DLTX 10049D1
7/1 1/97
7/28/97
L7G1008
ppbv
1.21
0.62
0.66
ND
ND
ND
ND
0.11
ND
ND
ND
ND
ND
ND
0.13
0.40
0.90
ND
ND
ND
ND
ND
ND
1.52
ND
0.07 U
0.06 U
ND
0.19
0.52
ND
0.16
ND
0.23
ND
NO
ND
DLTX 10049R1
7/11/97
7/30/97
L7G$007
ppbv
1.65
0.68
0.69
ND
ND
ND
ND
0.09
ND
ND
ND
ND
ND
ND
0.08
0.36
0.05
ND
ND
ND
ND
ND
ND
1.60
ND
0.06 U
0.05 U
ND
0.16
0.48
ND
0.11
ND
0.23
ND
ND
ND
U = Less than the detection limit.
                                3 of 12
                                                                7f»tX.XlS
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                        TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1-DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o-XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
DLTX10050D2
7/11/97
7/28/97
L7GI009
ppbv
1.21
0.55
0.55
ND
ND
ND
ND
0.07 U
ND
ND
ND
ND
ND
ND
0.11
0.39
0.06
ND
ND
ND
ND
ND
ND
1.44
ND
0.06 U
0.05 U
ND
0.16
0.46
ND
0.10
ND
0.22
ND
ND
ND
DLTX 10050R2
7/11/97
7/30/97
L7G$008
ppbv
1.52
0.61
0.59
ND
ND
ND
ND
0.04 U
ND
ND
ND
ND
ND
ND
0.09
0.34
0.06
ND
ND
ND
ND
ND
ND
1.45
ND
0.06 U
0.05 U
ND
0.14
0.43
ND
0.09 U
ND
0.21
ND
ND
ND
DLTX 9977
7/14/97
8/8/97
L7HG014
ppbv
2.61
0.93
0.54
ND
0.09
ND
ND
0.21
ND
ND
ND
ND
ND
ND
0.07
0.58
0.07
ND
ND
ND
ND
ND
ND
1.50
ND
0.07 U
ND
ND
0.20
0.57
ND
0.27
ND
ND
ND
ND
ND
U = Less than the detection limit.
                                4 of 12
                                                                ?dltx.xls
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                       TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 -DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 . D1CHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 -TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o- XYLENE
m - DICHLOROBENZENE
p • DICHLOROBENZENE
o - DICHLOROBENZENE
DLTX 10028
7/15/97
8/7/97
L7HG010
ppbv
6.23
1.58
0.47
ND
0.17
ND
ND
0.20
ND
ND
ND
ND
ND
ND
0.09
1.04
0.07
ND
ND
0.04
ND
ND
ND
2.70
ND
0.13 U
0.12 U
ND
0.39
1.19
ND
0.25
ND
0.52
ND
ND
ND
DLTX 10041
7/16/97
8/8/97
L7HG016
ppbv
9.42
1.62
0.54
ND
0.22
ND
ND
0.11
ND
ND
ND
ND
ND
ND
0.09
1.12
0.07
ND
ND
ND
ND
ND
ND
3.11
ND
0.12 U
0.09 U
ND
0.62
2.04
ND
0.34
ND
0.83
ND
ND
ND
DLTX10047D1
7/17/97
7/29/97
L7GJ016
ppbv
10.06
1.46
0.56
ND
0.11
ND
ND
0.27
ND
ND
ND
ND
ND
ND
0.09
0.97
0.07
ND
ND
0.04
ND
ND
ND
2.38
ND
0.10 U
0.07 U
ND
0.47
1.62
ND
0.25
ND
0.66
ND
ND
ND
U = Less than the detection limit.
                               5 of 12
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                       TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
RLE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 -DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 . DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o- XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
DLTX10047R1
7/17/97
7/31/97
L7GS015
ppbv
10.95
1.49
0.61
ND
0.09
ND
ND
0.24
ND
ND
ND
ND
ND
ND
0.07
0.87
0.06
ND
ND
0.02 U
ND
ND
ND
2.34
ND
0.12 U
0.07 U
ND
0.46
1.51
ND
0.25
ND
0.65
ND
ND
ND
DLTX 10048D2
7/17/97
7/29/97
L7G1017
ppbv
10.33
1.39
0.57
ND
0.11
ND
ND
0.29
ND
ND
ND
ND
ND
ND
0.08
1.00
0.07
ND
ND
0.03 U
ND
ND
ND
2.51
ND
0.12 U
0.07 U
ND
0.48
1.59
ND
0.24
ND
0.62
ND
ND
ND
DLTX 10048R2
7/17/97
7/31/97
L7G$016
ppbv
11.08
1.53
0.58
ND
0.11
ND
ND
0.25
ND
ND
ND
ND
ND
ND
0.09
0.87
0.07
ND
ND
0.02 U
ND
ND
ND
2.34
ND
0.12 U
0.06 U
ND
0.45
1.49
ND
0.26
ND
0.63
ND
ND
ND
U = Less than the detection limit.
                               6 of 12
                                                               Tdftxxls
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                        TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 -TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 • D1CHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o - XYLENE
m - DICHLOROBENZENE
p • DICHLOROBENZENE
o - DICHLOROBENZENE
DLTX 10046
7/18/97
8/7/97
L7HG008
ppbv
4.89
0.97
0.52
ND
ND
ND
ND
0.13
ND
ND
ND
ND
ND
ND
0.09
0.79
0.08
ND
ND
ND
ND
ND
ND
2.37
ND
0.10 U
0.04 U
ND
0.42
1.33
ND
0.46
ND
0.52
ND
ND
ND
DLTX 10179
7/21/97
8/8/97
L7HH007
ppbv
1.53
0.64
0.64
ND
ND
ND
ND
0.10
ND
ND
ND
ND
ND
ND
0.09
0.46
0.06
ND
ND
ND
ND
ND
ND
1.10
ND
0.05 U
0.07 U
ND
0.17
0.51
ND
ND
ND
023
ND
ND
ND
DLTX 101 81
7/22/97
8/8/97
L7HH008
ppbv
1.47
0.55
0.65
ND
ND
ND
ND
0.16
ND
ND
ND
ND
ND
ND
0.10
0.40
0.06
ND
ND
ND
ND
ND
ND
1.32
0.04 U
0.21 U
ND
ND
0.18
0.53
ND
ND
ND
0.21
ND
ND
ND
U = Less than the detection limit.
                                7 of 12
                                                                 Tdtxjds
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                       TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 -DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1-TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m.p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o- XYLENE
m - DICHLOROBENZENE
p • DICHLOROBENZENE
o - DICHLOROBENZENE
DLTX 10259D1
7/23/97
8/20/97
L7HR012
ppbv
1.66
1.08
0.59
ND
0.10
ND
ND
0.80
ND
ND
ND
ND
ND
ND
0.15
0.67
0.08
ND
ND
ND
ND
ND
ND
3.12
ND
0.12 U
0.06 U
ND
0.35
1.17
ND
0.09
ND
0.50
ND
ND
ND
DLTX 10259R1
7/23/97
8/20/97
L7HR024
ppbv
1.18
1.13
0.60
ND
0.07 U
ND
ND
0.75
ND
ND
ND
ND
ND
ND
0.15
0.59
0.07
ND
ND
ND
ND
ND
ND
3.21
ND
0.12 U
0.05 U
ND
0.36
1.16
ND
0.09
ND
0.50
ND
ND
ND
DLTX 10260D2
7/23/97
8/20/97
L7HR013
ppbv
1.93
1.31
0.69
ND
0.13
ND
ND
0.91
ND
ND
ND
ND
ND
ND
0.17
0.72
0.10
ND
ND
ND
ND
ND
ND
3.41
ND
0.12 U
0.06 U
ND
0.40
1.22
ND
0.10
ND
0.51
ND
ND
ND
U = Less than the detection limit.
                               8of12
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                       TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 -DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1 ,1 ,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1 ,1 ,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o-XYLENE
m • DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
DLTX 10260R2
7/23/97
8/20/97
L7HR025
ppbv
1.16
1.07
0.54
ND
0.06 U
ND
ND
0.78
ND
ND
ND
ND
ND
ND
0.14
0.66
0.07
ND
ND
ND
ND
ND
ND
3.33
ND
0.12 U
0.06 U
ND
0.42
1.25
ND
0.11
ND
0.54
ND
ND
ND
DLTX 10293
7/24/97
8/8/97
L7HH012
ppbv
9.81
1.35
0.63
ND
0.13
ND
ND
0.07 U
ND
ND
ND
ND
ND
ND
0.08
0.87
0.06
ND
ND
ND
ND
ND
ND
2.42
ND
0.09 U
0.07 U
ND
0.42
1.31
ND
0.22
ND
0.57
ND
ND
ND
DLTX 10294
7/25/97
8/8/97
L7HH013
ppbv
5.50
1.08
0.54
ND
0.05 U
ND
ND
0.06 U
ND
ND
ND
ND
ND
ND
0.08
0.77
0.07
ND
ND
ND
ND
ND
ND
1.92
ND
0.10 U
0.07 U
ND
0.33
1.13
ND
0.35
ND
0.48
ND
ND
ND
U = Less man trie detection limit.
                                9«f 12
                                                                70ltx.xls
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                       TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1-DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
Cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 -TETRACHLOROETHANE
o-XYLENE
m . DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
DLTX 10305
7/28/97
8/9/97
L7HH020
ppbv
7.36
1.52
0.58
ND
0.18
ND
ND
0.42
ND
ND
ND
ND
ND
ND
0.08
0.95
0.06
ND
ND
ND
ND
ND
ND
2.80
ND
0.11 U
0.07 U
ND
0.39
1.10
ND
0.13
ND
0.51
ND
ND
ND
DLTX 1031 5D1
7/29/97
8/20/97
L7HR016
ppbv
4.54
0.98
0.49
ND
0.06 U
ND
ND
0.02 U
ND
ND
ND
ND
ND
ND
0.07
0.72
0.08
ND
ND
ND
ND
ND
ND
1.89
ND
0.06 U
ND
ND
0.30
0.96
ND
0.10
ND
0.39
ND
ND
ND
DLTX 10315R1
7/29/97
8/20/97
L7HS006
ppbv
6.37
1.00
0.48
ND
0.05 U
ND
ND
0.03 U
ND
ND
ND
ND
ND
ND
0.07
0.70
0.09
ND
ND
ND
ND
ND
ND
2.03
ND
0.07 U
ND
ND
0.32
1.01
ND
0.12
ND
0.44
ND
ND
ND
U = Less than the detection limit.
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                       TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 -DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o-XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
DLTX 10316D2
7/29/97
8/20/97
L7HR017
ppbv
4.10
0.98
0.46
ND
0.07 U
ND
ND
0.03 U
ND
ND
ND
ND
ND
ND
0.08
0.74
0.09
ND
ND
ND
ND
ND
ND
1.90
ND
0.08 U
ND
ND
0.32
0.97
ND
0.11
ND
0.42
ND
ND
ND
DLTX 10316R2
7/29/97
8/20/97
L7HS007
ppbv
2.81
1.00
0.50
ND
0.04 U
ND
ND
0.04 U
ND
ND
ND
ND
ND
ND
0.07
0.71
0.08
ND
ND
ND
ND
ND
ND
1.90
ND
0.09 U
ND
ND
0.30
0.99
ND
0.10
ND
0.42
ND
ND
ND
DLTX 10367
7/30/97
ppbv
0.77
0.59
0.58
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.16
0.44
0.08
ND
ND
ND
ND
ND
ND
1.42
ND
0.10 U
0.16 U
ND
0.29
1.03
ND
ND
ND
0.39
ND
ND
ND
U = Less than the detection limit.
-------
    1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                              TOXICS OPTION REPORT
                  SAMPLE SITE #
                  SAMPLE DATE
                  ANALYSIS DATE
                  FILE NAME
                  UNITS
                  ACETYLENE
                  PROPYLENE
                  CHLOROMETHANE
                  VINYL CHLORIDE
                  1,3-BUTADIENE
                  BROMOMETHANE
                  CHLOROETHANE
                  METHYLENE CHLORIDE
                  trans -1,2 - DICHLOROETHYLENE
                  1,1 -DICHLOROETHANE
                  CHLOROPRENE
                  BROMOCHLOROMETHANE
                  CHLOROFORM
                  1,2 - DICHLOROETHANE
                  1,1,1 - TRICHLOROETHANE
                  BENZENE
                  CARBON TETRACHLORIDE
                  1,2 - DICHLOROPROPANE
                  BROMODICHLOROMETHANE
                  TRICHLOROETHYLENE
                  cis -1,3 - DICHLOROPROPENE
                  rans -1,3 - DICHLOROPROPENE
                  ,1,2 - TRICHLOROETHANE
                  OLUENE
                  DIBROMOCHLOROMETHANE
                  N-OCTANE
                  TETRACHLOROETHYLENE
                  CHLOROBENZENE
                  ETHYLBENZENE
                  m,p-XYLENE
                  BROMOFORM
                  STYRENE
                  ,1,2,2 - TETRACHLOROETHANE
                  .-XYLENE
                  n  - DICHLOROBENZENE
                   - DICHLOROBENZENE
                   - DICHLOROBENZENE
U = Less than the detection limit.
DLTX10419
  7/31/97
  8/23/97
 L7HV021
   ppbv
  0.78
  0.42
  0.61
  ND
  ND
  ND
  ND
  0.06
  ND
  ND
  ND
  ND
  ND
  ND
  0.10
  0.45
  0.06
  ND
  ND
  0.24
  ND
  ND
  ND
  1.36
  ND
  0.06
  0.07
  ND
  0.18
  0.51
  ND
  ND
  ND
  0.29
  ND
  ND
  ND
                                        12 of 12
                                                                                 Tdttxjds
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                       TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
RLE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 -DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1-TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o- XYLENE
m - DICHLOROBENZENE
p • DICHLOROBENZENE
o - DICHLOROBENZENE
DLTX 10382
8/1/97
8/23/97
L7HV016
ppbv
1.48
0.72
0.40
ND
ND
ND
ND
0.09
ND
ND
ND
ND
ND
ND
0.10
0.59
0.07
ND
ND
0.08
ND
ND
ND
1.31
ND
0.06 U
0.09 U
ND
0.20
0.54
ND
ND
ND
0.27
ND
ND
ND
DLTX 10543D1
8/4/97
8/26/97
L7HY015
ppbv
5.09
0.90
0.46
ND
0.08 U
ND
ND
0.13
ND
ND
ND
ND
ND
ND
0.09
0.97
0.07
ND
ND
ND
ND
ND
ND
2.05
ND
0.08 U
0.05 U
ND
0.28
0.79
ND
0.05 U
ND
0.38
ND
ND
ND
DLTX 10543R1
8/4/97
8/26/97
L7HZ010
ppbv
5.11
0.59
0.45
ND
0.09
ND
ND
0.12
ND
ND
ND
ND
ND
ND
0.11
0.85
0.07
ND
ND
ND
ND
ND
ND
2.00
ND
0.11 U
0.07 U
ND
0.31
0.84
ND
ND
ND
0.43
ND
ND
ND
U = Less than the detection limit.
                               10M1
                                                               Mitxxis
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                        TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o- XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
DLTX 10544D2
8/4/97
8/26/97
L7HY016
ppbv
5.10
0.80
0.52
ND
0.08 U
ND
ND
0.11
ND
ND
ND
ND
ND
ND
0.12
0.90
0.08
ND
ND
ND
ND
ND
ND
1.90
ND
0.07 U
0.06 U
ND
0.28
0.72
ND
ND
ND
0.36
ND
ND
ND
DLTX 10544R2
8/4/97
8/26/97
L7HZ011
ppbv
5.14
0.62
0.42
ND
0.05 U
ND
ND
0.12
ND
ND
ND
ND
ND
ND
0.10
0.94
0.07
ND
ND
ND
ND
ND
ND
2.01
ND
0.11 U
0.05 U
ND
0.29
0.74
ND
ND
ND
0.36
ND
ND
ND
DLTX 10520
8/5/97
8/24/97
L7HW008
ppbv
2.85
1.40
0.51
ND
0.18
ND
ND
0.63
ND
ND
ND
ND
ND
ND
0.35
1.26
0.07
ND
ND
0.08
ND
ND
ND
4.82
ND
0.20 U
0.58
ND
0.55
1.56
ND
0.09 U
ND
0.81
ND
ND
ND
U = Less than the detection limit.
                                2 of 11
                                                                8dltx.xls
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                       TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 -DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
c\s - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLJENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o-XYLENE
m - DICHLOROBENZENE
p -DICHLOROBENZENE
o - DICHLOROBENZENE
DLTX 10514
8/6/97
9/26/97
L7IZ004
ppbv
2.86
0.83
0.42
ND
ND
ND
ND
0.14
ND
ND
ND
ND
ND
ND
0.11
0.59
0.07
ND
ND
ND
ND
ND
ND
1.85
ND
0.10 U
0.07 U
ND
0.23
0.71
ND
0.05 U
ND
0.31
ND
ND
ND
DLTX 10566
8/7/97
8/30/97
L7H#023
ppbv
0.69
0.18
0.28
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.09
0.35
0.07
ND
ND
0.43
ND
ND
ND
0.48
ND
0.03 U
ND
ND
0.15
0.45
ND
0.05 U
ND
0.27
ND
ND
ND
DLTX 10569
8/8/97
8/30/97
L7H3026
ppbv
0.84
0.46
0.18
ND
ND
ND
ND
0.06 U
ND
ND
ND
ND
ND
ND
0.08
0.31
0.07
ND
ND
ND
ND
ND
ND
0.73
ND
0.03 U
0.03 U
ND
0.13
0.35
ND
ND
ND
0.19
ND
ND
ND
U = Less than the detection limit.
                                3 of 11
                                                                Mltoxte
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                       TOXICS OPTION REPORT
SAMPLE SITE*
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 -TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o- XYLENE
m - DICHLOROBENZENE
p-DICHLOROBENZENE
o - DICHLOROBENZENE
DLTX 10573
8/11/97
8/31/97
L7H#004
ppbv
0.87
0.59
0.32
ND
0.03 U
ND
ND
0.01 U
ND
ND
ND
ND
ND
ND
0.09
0.46
0.07
ND
ND
ND
ND
ND
ND
0.88
ND
0.05 U
0.01 U
ND
0.16
0.45
ND
0.06 U
ND
0.25
ND
ND
ND
DLTX 10670
8712/97
9/2/97
L7IB009
ppbv
1.13
0.55
0.25
ND
0.03 U
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.11
0.52
0.09
ND
ND
ND
ND
ND
ND
1.14
ND
0.06 U
0.03 U
ND
0.25
0.74
ND
0.05 U
ND
0.38
ND
ND
ND
DLTX 10671
8/13/97
9/2/97
L7ID014
ppbv
3.17
0.69
0.51
ND
ND
ND
ND
0.17
ND
ND
ND
ND
ND
ND
0.08
0.64
0.08
ND
ND
ND
ND
ND
ND
1.36
ND
0.08 U
0.05 U
ND
0.23
0.63
ND
0.10
ND
0.33
ND
ND
ND
U = Less than the detection limit.
                               4 Of 11
                                                               8dttx.xls
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                       TOXICS OPTION REPORT
SAMPLE SITE*
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 -DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1 ,1 ,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 • DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o-XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
DLTX 10673
8/14/97
9/3/97
L7IB019
ppbv
1.10
0.59
0.40
ND
ND
ND
ND
0.20
ND
ND
ND
ND
ND
ND
0.07
0.43
0.07
ND
ND
ND
ND
ND
ND
1.25
ND
0.07 U
0.11 U
ND
0.21
0.61
ND
0,06 U
ND
0.33
ND
ND
ND
DLTX 10683D1
8/15/97
8726/97
L7HY017
ppbv
0.79
0.25
0.41
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.07
0.29
0.07
ND
ND
ND
ND
ND
ND
0.58
ND
ND
ND
ND
0.08
0.20
ND
ND
ND
0.10
ND
ND
ND
DLTX 10683R1
8/15/97
8/27/97
L7HZ012
ppbv
0.87
0.14
0.49
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.11
0.44
0.10
ND
ND
ND
ND
ND
ND
0.62
ND
0.03 U
ND
ND
0.10
0.27
ND
ND
ND
0.14
ND
ND
ND
U = Less than the detection limit.
                                s of 11
                                                                Mlte-xls
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                        TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
Cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 -TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o- XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
DLTX10682D2
8/15/97
8/26/97
L7HY018
ppbv
0.78
0.25
0.43
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.07
0.28
0.07
ND
ND
ND
ND
ND
ND
0.58
ND
ND
ND
ND
0.08
0.21
ND
ND
ND
0.10
ND
ND
ND
DLTX 10682R2
8/1 5/97
8/27/97
L7HZ013
ppbv
0.72
0.16
0.42
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.06
0.30
0.07
ND
ND
ND
ND
ND
ND
0.55
ND
ND
ND
ND
0.09
0.20
ND
ND
ND
0.12
ND
ND
ND
DLTX 10695
8/18/97
9/3/97
L7IB022
ppbv
1.44
0.80
0.37
ND
0.04 U
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.06
0.65
0.08
ND
ND
ND
ND
ND
ND
0.90
ND
0.05 U
0.03 U
ND
0.16
0.42
ND
0.05 U
ND
0.22
ND
ND
ND
U = Less than the detection limit.
                                6 Of 11
                                                                Mtouds
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                       TOXICS OPTION REPORT
SAMPLE SITE*
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYL1NE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 -TETRACHLOROETHANE
o-XYLENE
m - DICHLOROBENZENE
p • DICHLOROBENZENE
o - DICHLOROBENZENE
DLTX 10712
8/19/97
9/3/97
L7IC004
ppbv
1.12
0.46
0.28
ND
ND
ND
ND
0.15
ND
ND
ND
ND
ND
ND
0.08
0.32
0.06
ND
ND
ND
ND
ND
ND
0.72
ND
0.05 U
ND
ND
0.16
0.45
ND
0.07 U
ND
0.24
ND
ND
ND
DLTX 10851
8/20/97
9/3/97
L7IC010
ppbv
4.13
1.54
0.32
ND
0.19
ND
ND
0.09
ND
ND
ND
ND
ND
ND
0.11
0.99
0.08
ND
ND
0.05
ND
ND
ND
2.50
ND
0.11 U
0.08 U
ND
0.55
1.60
ND
0.22
ND
0.81
ND
0.01 U
ND
DLTX 10862D1
8/21/97
9/9/97
L7II007
ppbv
3.07
1.31
0.44
ND
0.17
ND
ND
0.23
ND
ND
ND
ND
ND
ND
0.16
0.96
0.07
ND
ND
0.40
ND
ND
ND
2,97
ND
0.66
0.23
ND
0.99
4.06
ND
0.22
ND
1.30
ND
0.06 U
ND
U = Less than the detection limit.
                                7 of 11
                                                                8dltx.xls
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                       TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILENAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1-DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2-DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o- XYLENE
m - DICHLOROBENZENE
p-DICHLOROBENZENE
o - DICHLOROBENZENE
DLTX 10862R1
8/21/97
9/10/97
L7IJ011
ppbv
3.44
1.43
0.58
ND
0.19
ND
ND
0.25
ND
ND
ND
ND
ND
ND
0.18
1.06
0.08
ND
ND
0.40
ND
ND
ND
3.02
ND
0.68
0.23
ND
1.04
4.02
ND
0.23
ND
1.30
ND
0.06 U
ND
DLTX 10863D2
8/21/97
9/9/97
L7II008
ppbv
4.09
1.47
0.57
ND
0.17
ND
ND
0.26
ND
ND
ND
ND
ND
ND
0.18
1.03
0.09
ND
ND
0.42
ND
ND
ND
3.39
ND
0.71
0.24
ND
1.03
4.26
ND
0.26
ND
1.41
ND
0.06 U
ND
DLTX 10863R2
8/21/97
9/11/97
L7U012
ppbv
3.34
1.40
0.54
ND
0.16
ND
ND
0.24
ND
ND
ND
ND
ND
ND
0.15
1.01
0.07
ND
ND
0.38
ND
ND
ND
3.33
ND
0.71
0.24
ND
1.07
4.14
ND
0.26
ND
1.42
ND
0.06 U
ND
U = Less than the detection limit.
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                       TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 -TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1 ,1 ,2,2 - TETRACHLOROETHANE
o-XYLENE
m • DICHLOROBENZENE
p-DICHLOROBENZENE
o - DICHLOROBENZENE
DLTX 10861
8/22/97
9/4/97
L7IC014
ppbv
7.16
1.36
0.24
ND
0.07 U
ND
ND
0.06 U
ND
ND
ND
ND
ND
ND
0.10
1.02
0.07
ND
ND
0.04
ND
ND
ND
2.38
ND
0.13 U
0.10 U
ND
0.37
1.06
ND
0.63
ND
0.56
ND
0.03 U
ND
DLTX 10908
8/25/97
9/4/97
L7IC017
ppbv
5.26
1.14
0.20
ND
0.06 U
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.11
0.97
0.08
ND
ND
ND
ND
ND
ND
2.23
ND
0.10 U
0.80 U
ND
0.58
1.62
ND
0.08 U
ND
0.79
ND
0.02 U
ND
DLTX 10955
8/26/97
9/4/97
L7IC021
ppbv
10.99
1.36
0.42
ND
0.15
ND
ND
0.09
ND
ND
ND
ND
ND
ND
0.10
1.14
0.09
ND
ND
0.04
ND
ND
ND
2.63
ND
0.14 U
0.07 U
ND
0.47
1.34
ND
0.28
ND
0.68
ND
0.03 U
ND
U = Less than the detection limit.
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                       TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 -DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
Cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 -TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o- XYLENE
m - DICHLOROBENZENE
p-DICHLOROBENZENE
o - DICHLOROBENZENE
DLTX 10961D1
8/27/97
9/10/97
L7H011
ppbv
4.89
1.32
0.48
ND
0.14
ND
ND
0.13
ND
ND
ND
ND
ND
ND
0.09
0.96
0.07
ND
ND
ND
ND
ND
ND
2.50
ND
0.13 U
0.80 U
ND
0.65
2.03
ND
0.09 U
ND
0.87
ND
0.02 U
ND
DLTX 10961 R1
8/27/97
9/1 1/97
L7IJ015
ppbv
4.50
1.30
0.51
ND
0.10
ND
ND
0.10
ND
ND
ND
ND
ND
ND
0.09
0.93
0.08
ND
ND
ND
ND
ND
ND
2.40
ND
0.11 U
0.07 U
ND
0.64
2.10
ND
0.10
ND
0.87
ND
0.02
ND
DLTX 10962D2
8/27797
9/10/97
L7II012
ppbv
4.48
1.32
0.50
ND
0.11
ND
ND
0.13
ND
ND
ND
ND
ND
ND
0.09
0.91
0.07
ND
ND
ND
ND
ND
ND
2.36
ND
0.11 U
0.08 U
ND
0.64
2.02
ND
0.10
ND
0.84
ND
ND
ND
U = Less than the detection limit.
                               10 of 11
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                       TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 -OICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 -TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o-XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
DLTX 10962R2
8/27/97
9/11/97
L7U016
ppbv
4.31
1.48
0.44
ND
0.11
ND
ND
0.12
ND
ND
ND
ND
ND
ND
0.09
0.98
0.07
ND
ND
ND
ND
ND
ND
2.41
ND
0.13 U
0.08 U
ND
0.69
2.15
ND
0.11
ND
0.88
ND
ND
ND
DLTX 11017
8/28/97
9/4/97
L7ID011
ppbv
11.29
1.44
0.25
ND
0.17
ND
ND
0.22
ND
ND
ND
ND
ND
ND
0.13
1.23
0.09
ND
ND
ND
ND
ND
ND
4.00
ND
0.18 U
0.12 U
ND
0.89
2.65
ND
0.42
ND
1.21
ND
0.03 U
ND
DLTX 11018
8/29/97
9/5/97
L7ID012
ppbv
25.70
1.55
0.28
ND
0.17
ND
ND
0.08 U
ND
ND
ND
ND
ND
ND
0.12
1.20
0.08
ND
ND
ND
ND
ND
ND
3.13
ND
0.14 U
0.12 U
ND
0.81
2.37
ND
0.23
ND
1.09
ND
ND
ND
U = Less than the detection limit.
                                11 of 11
                                                                WHX.XIS
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                         TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1-DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
Cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m.p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 -TETRACHLOROETHANE
o-XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
DLTX 11118
9/4/97
9/17/97
L7IP012
ppbv
1.24
0.32
0.50
ND
ND
ND
ND
0.04 U
ND
ND
ND
ND
ND
ND
0.36
0.35
0.07
ND
ND
0.61
ND
ND
ND
0.87
ND
0.04 U
0.06 U
ND
0.12
0.33
ND
0.03 U
ND
0.16
ND
ND
ND
DLTX 11125
9/5/97
9/17/97
L7IP014
ppbv
2.73
1.16
0.54
ND
ND
ND
ND
0.14
ND
ND
ND
ND
ND
ND
0.09
0.64
0.07
ND
ND
0.04
ND
ND
ND
1.47
ND
0.11 U
0.05 U
ND
0.18
0.57
ND
0.09 U
ND
0.26
ND
ND
ND
DLTX 11192
9/8/97
9/17/97
L7IP021
ppbv
2.76
0.81
0.64
ND
0.03 U
ND
ND
0.06 U
ND
ND
ND
ND
ND
ND
0.10
0.63
0.08
ND
ND
ND
ND
ND
ND
1.20
ND
0.07 U
0.10 U
ND
0.22
0.65
ND
0.06 U
ND
0.31
ND
ND
ND
U = Less than the detection limit.
* = Vacuum Criteria Exceeded
1of9
                                                                   MKX.XIS
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                        TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1-DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 -TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 -TETRACHLOROETHANE
o-XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o • DICHLOROBENZENE
DLTX11207D1
9/9/97
9/17/97
L7IQ008
ppbv
2.68
0.94
0.56
ND
ND
ND
ND
0.19
ND
ND
ND
ND
ND
ND
0.11
0.66
0.08
ND
ND
ND
ND
ND
ND
2.17
ND
0.09 U
0.05 U
ND
0.26
0.76
ND
0.06 U
ND
0.33
ND
ND
ND
DLTX 11207R1
9/9/97
9/19/97
L7IR008
ppbv
3.16
0.93
0.58
ND
0.03 U
ND
ND
0.19
ND
ND
ND
ND
ND
ND
0.11
0.67
0.07
ND
ND
ND
ND
ND
ND
2.40
ND
0.09 U
0.05 U
ND
0.27
0.78
ND
0.06 U
ND
0.36
ND
ND
ND
DLTX 11208D2
9/9/97
9/18/97
L7IQ009
ppbv
2.79
0.92
0.48
ND
ND
ND
ND
0.20
ND
ND
ND
ND
ND
ND
0.10
0.64
0.07
ND
ND
ND
ND
ND
ND
2.28
ND
0.07 U
0.05 U
ND
0.26
0.74
ND
0.06 U
ND
0.34
ND
ND
ND
U = Less than the detection limit.
1 = Vacuum Criteria Exceeded
                                 2 of 9
                                                                  Wltxjds
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                        TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1-DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2-DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o- XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
DLTX11208R2
9/9/97
9/20/97
L7IR009
ppbv
3.12
0.94
0.56
ND
0.03 U
ND
ND
0.23
ND
ND
ND
ND
ND
ND
0.11
0.68
0.06
ND
ND
ND
ND
ND
ND
2.29
ND
0.09 U
0.05 U
ND
0.27
0.80
ND
0.06 U
ND
0.36
ND
ND
ND
DLTX 11218
9/10/97
9/17/97
L7IQ004
ppbv
2.94
0.91
0.46
ND
0.07 U
ND
ND
0.16
ND
ND
ND
ND
ND
ND
0.61
0.66
0.07
ND
ND
ND
ND
ND
ND
2.64
ND
0.20 U
0.12 U
ND
0.26
0.80
ND
0.06 U
ND
0.34
ND
ND
ND
DLTX 11277
9/11/97
9/22/97
L7IV008
ppbv
3.71
0.50
0.56
ND
ND
ND
ND
0.15
ND
ND
ND
ND
ND
ND
0.18
0.69
0.07
ND
ND
0.19
ND
ND
ND
1.77
ND
0.11 U
0.11 U
ND
0.31
0.63
ND
ND
ND
0.32
ND
ND
ND
U = Less than the detection limit.
* = Vacuum Criteria Exceeded
3of9
                                                                  MItiutt
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                        TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1-DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 • DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o-XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o • DICHLOROBENZENE
DLTX11284
9/12/97
ppbv
*
*
*
*
*
»
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
DLTX11290
9/12/97
9/23/97
L7IV010
ppbv
4.46
1.13
O.S4
ND
0.04 U
ND
ND
0.04 U
ND
ND
ND
ND
ND
ND
0.11
0.87
0.09
ND
ND
ND
ND
ND
ND
1.62
ND
0.12 U
ND
ND
0.26
0.76
ND
0.08 U
ND
0.35
ND
ND
ND
DLTX11299D1
9/15/97
9/18/97
L7IQ016
ppbv
3.93
1.34
O.S2
ND
0.07 U
ND
ND
0.09
ND
ND
ND
ND
ND
ND
0.08
0.74
0.08
ND
ND
ND
ND
ND
ND
1.60
ND
0.08 U
ND
ND
0.24
0.73
ND
0.07 U
ND
0.34
ND
0.01 U
ND
U = Less than the detection limit.
' = Vacuum Criteria Exceeded
4 Of 9
                                                                  ttltxjds
-------
    1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                         TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPJYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 -DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 -TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o-XYLENE
m - DICHLOROBENZENE
p • DICHLOROBENZENE
o - DICHLOROBENZENE
DLTX 11299R1
9/15/97
9/20/97
L7IR016
ppbv
4.52
1.29
0.56
ND
0.13
ND
ND
0.07 U
ND
ND
ND
ND
ND
ND
0.07
0.80
0.07
ND
ND
ND
ND
ND
ND
1.55
ND
0.08 U
ND
ND
0.24
0.74
ND
0.07 U
ND
0.34
ND
ND
ND
DLTX11300D2
9/15/97
9/18/97
L7IQ017
ppbv
3.95
1.31
0.57
ND
0.07 U
ND
ND
0.06 U
ND
ND
ND
ND
ND
ND
0.09
0.76
0.07
ND
ND
ND
ND
ND
ND
1.56
ND
0.09 U
ND
ND
0.23
0.70
ND
0.06 U
ND
0.34
ND
ND
ND
DLTX 11300R2
9/15/97
9/20/97
L7IR017
ppbv
4.52
1.30
0.53
ND
0.08 U
ND
ND
0.08 U
ND
ND
ND
ND
ND
ND
0.08
0.83
0.06
ND
ND
ND
ND
ND
ND
1.53
ND
0.08 U
ND
ND
0.23
0.70
ND
0.07 U
ND
0.34
ND
ND
ND
U = Less than the detection limit.
* = Vacuum Criteria Exceeded
5 Of 9
                                                                  ftftuds
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                         TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 -DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
Cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 -TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o- XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
DLTX 11312
9/16/97
9/24/97
L7IX012
ppbv
4.21
0.95
0.54
ND
0.06 U
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.12
0.50
0.06
ND
ND
ND
ND
ND
ND
1.20
ND
0.05 U
0.06 U
ND
0.17
0.52
ND
0.10
ND
0.23
ND
ND
ND
DLTX 11 350
9/17/97
9/25/97
L7IX016
ppbv
1.80
0.78
0.63
ND
0.01 U
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.14
0.50
0.06
ND
ND
ND
ND
ND
ND
0.84
ND
0.05 U
0.05 U
ND
0.15
0.46
ND
0.05 U
ND
0.22
ND
ND
ND
DLTX 11 357
9/18/97
9/26/97
L7IY021
ppbv
8.83
1.02
0.54
ND
0.03 U
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.12
0,59
0.07
ND
ND
ND
ND
ND
ND
1.47
ND
0.08 U
0.08 U
ND
0.23
0.69
ND
0.09 U
ND
0.31
ND
ND
ND
U = Less than the detection limit.
* = Vacuum Criteria Exceeded
6 of 9
                                                                    Mtxxls
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                       TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2- DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TR1CHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 • DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
0-XYLENE
m - DICHLOROBENZENE
p-DICHLOROBENZENE
o - DICHLOROBENZENE
DLTX11363
9/19/97
9/22/97
L7IV006
ppbv
19.50
1.19
0.55
ND
0.06 U
ND
ND
0.03 U
ND
ND
ND
ND
ND
ND
0.13
0.73
0.08
ND
ND
ND
ND
ND
ND
1.36
ND
0.07 U
0.03 U
ND
0.31
0.95
ND
0.24
ND
0.38
ND
ND
ND
DLTX11372
9/22/97
10/1/97
L7I$017
ppbv
2.47
0.64
0.50
ND
ND
ND
ND
0.07 U
ND
ND
ND
ND
ND
ND
0.13
0.63
0.08
ND
ND
ND
ND
ND
ND
1.03
ND
0.10 U
0.03 U
ND
0.14
0.42
ND
0.07 U
ND
0.18
ND
ND
ND
DLTX 11387
9/23/97
10/1/97
L7I$019
ppbv
2.32
0.90
0.62
ND
0.01 U
ND
ND
0.13
ND
ND
ND
ND
ND
ND
0.18
0.51
0.08
ND
ND
ND
ND
ND
ND
1.41
ND
0.04 U
0.03 U
ND
0.18
0.55
ND
0.06 U
ND
0.24
ND
ND
ND
U = Less than the detection limit.
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                       TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 -DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROM ETHANE
CHLOROFORM
1,2 -DICHLOROETHANE
1,1,1 • TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 -TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o-XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
DLTX 11423
9/24/97
9/30/97
L7I$010
ppbv
1.81
0.46
0.54
ND
ND
ND
ND
0.17
ND
ND
ND
ND
ND
ND
0.13
0.36
0.07
ND
ND
ND
ND
ND
ND
0.79
ND
0.05 U
ND
ND
0.11
0.32
ND
ND
ND
0.15
ND
ND
ND
DLTX 11422
9/25/97
9/30/97
L7I$012
ppbv
1.93
0.42
0.41
ND
ND
ND
ND
0.02 U
ND
ND
ND
ND
ND
ND
0.13
0.31
0.08
ND
ND
ND
ND
ND
ND
0.73
ND
0.04 U
0.03 U
ND
0.11
0.32
ND
ND
ND
0.14
ND
ND
ND
DLTX 11435
9/26/97
10/1/97
L7I$015
ppbv
4.30
2.00
0.43
ND
0.20
ND
ND
0.49
ND
ND
ND
ND
ND
ND
0.22
1.08
0.06
ND
ND
ND
ND
ND
ND
3.52
ND
0.17 U
0.13 U
ND
0.40
1.21
ND
0.10
ND
0.56
ND
ND
ND
u = Less than the detection limit.
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                         TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 -TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o - XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
DLTX 11444
9/29/97
10/1/97
L7IS014
ppbv
2.32
0.77
0.44
ND
ND
ND
ND
0.02 U
ND
ND
ND
ND
ND
ND
0.13
0.53
0.07
ND
ND
0.09
ND
ND
ND
2.12
ND
0.07 U
0.04 U
ND
0.27
0.82
ND
0.06 U
ND
0.36
ND
ND
ND
DLTX 11458
9/30/97
10/4/97
L7JC021
ppbv
11.10
1.66
0.45
ND
0.14
ND
ND
0.11
ND
ND
ND
ND
ND
ND
0.14
1.10
0.07
ND
ND
0.05
ND
ND
ND
2.28
ND
0.12 U
0.05 U
ND
0.41
1.31
ND
0.28
ND
0.57
ND
0.03 U
ND
U = Less than the detection limit.
* = Vacuum Criteria Exceeded
9 Of 9
                                                                   MRxjds
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                         TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
RLE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 -TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o-XYLENE
m - DICHLOROBENZENE
p • DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS5
6/2/97
ppbv
+
+
+
+
+
+
+
+
+
•*•
+
+
+
+
+
+
+
+
+
+
•*•
+
+
+
•«•
+
+
+
+
+
+
+
+
+
+
+
+
CAMS5 9448
6/3/97
7/21/97
K/LGJ015
ppbv
2.09
1.12
0.53
ND
0.07 U
ND
ND
0.10
ND
ND
ND
ND
0.03 U
ND
0.12
0.82
0.09
ND
ND
ND
ND
ND
ND
1.73
ND
0.08 U
0.15 U
ND
0.30
0.91
ND
0.05 U
ND
0.41
ND
ND
ND
CAMS5 9443
6/4/97
7/21/97
K/LGJ014
ppbv
2.17
0.84
0.55
ND
0.03 U
ND
ND
0.07 U
ND
ND
ND
ND
ND
ND
0.12
0.77
0.08
ND
ND
ND
ND
ND
ND
1.53
ND
0.08 U
0.14 U
ND
0.25
0.71
ND
ND
ND
0.34
ND
ND
ND
u = Less tnan tne detection limit.
 = Sample not collected in field
1 of?
                                                                   6cam$5xls
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                       TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1-DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o-XYLENE
m - DICHLOROBENZENE
p-DICHLOROBENZENE
o • DICHLOROBENZENE
CAMS5 9458
6/5/97
7/21/97
K/LGJ018
ppbv
1.66
0.55
0.45
ND
ND
ND
ND
0.09
ND
ND
ND
ND
ND
ND
0.11
0.65
0.07
ND
ND
ND
ND
ND
ND
1.39
ND
0.07 U
0.12 U
ND
0.23
0.65
ND
ND
ND
0.32
ND
ND
ND
CAMS5 9462
6/6797
7/21/97
K/LGJ019
ppbv
1.27
0.74
0.53
ND
ND
ND
ND
0.10
ND
ND
ND
ND
0.06
ND
0.13
0.66
0.08
ND
ND
ND
ND
ND
ND
1.47
ND
0.11 U
0.06 U
ND
0.26
0.73
ND
ND
ND
0.35
ND
ND
ND
CAMS5 9473
6/9/97
7/22/97
K/LGU010
ppbv
2.08
0.75
0.63
ND
0.04 U
ND
ND
1.34
ND
ND
ND
ND
0.11
ND
0.14
0.89
ND
ND
ND
ND
ND
ND
ND
2.16
ND
0.14 U
0.20 U
ND
0.49
1.47
ND
ND
ND
0.65
ND
ND
ND
u = Less than the detection limit.
-------
 1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                     TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADlENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1-TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 • DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o -XYLENE
m • DICHLOROBENZENE
p-DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS5 9531
6/10/97
7/21797
K/LGU008
ppbv
2.26
0.80
0.91
ND
ND
ND
ND
0.10
ND
ND
ND
ND
0.08
ND
0.18
0.82
ND
ND
ND
ND
ND
ND
ND
1.76
ND
0.07 U
0.17 U
ND
0.30
0.93
ND
ND
ND
0.41
ND
ND
ND
CAMS5 9502
6/11/97
7/22/97
K/LGU015
ppbv
2.35
1.02
0.55
ND
0.07 U
ND
ND
0.17
ND
ND
ND
ND
0.10
ND
0.14
0.92
0.09
ND
ND
ND
ND
ND
ND
2.23
ND
0.09 U
0.27
ND
0.37
1.14
ND
0.06 U
ND
O.S1
ND
NO
ND
CAMS5 9529
6/12/97
7/22/97
K/LGU017
ppbv
1.13
0.32
0.62
ND
ND
ND
ND
0.09
ND
ND
ND
ND
0.03 U
ND
0.09
0.49
0.08
ND
ND
ND
ND
ND
ND
1.39
ND
0.08 U
0.17 U
ND
0.22
0.65
ND
0.12
ND
0.30
ND
ND
ND
: Less inan tne Detection limit.
-------
    1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                         TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLEDATE
ANALYSIS DATE
RLE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 -DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
c\s - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 -TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m.p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o-XYLENE
m - DICHLOROBENZENE
p- DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS5 9526
6/13/97
7/22/97
K/LGV007
ppbv
0.54
0.24
ND
0.61
ND
ND
ND
0.01 U
ND
ND
ND
ND
ND
ND
0.09
0.33
0.09
ND
ND
ND
ND
ND
ND
0.82
ND
0.05 U
0.13 U
ND
0.14
0.43
ND
0.10
ND
0.20
ND
ND
ND
CAMS5 9545
6/16/97
7/22/97
K/LGV009
ppbv
0.62
0.22
0.96
ND
ND
ND
ND
0.64
ND
ND
ND
ND
ND
ND
0.09
0.45
0.09
ND
ND
ND
ND
ND
ND
1.27
ND
0.06 U
ND
ND
0.24
0.79
ND
ND
ND
0.30
ND
ND
ND
CAMS5 9547
6/17/97
7/23/97
K/LGV015
ppbv
0.80
0.31
0.56
ND
ND
ND
ND
0.02 U
ND
ND
ND
ND
ND
ND
0.12
0.40
0.08
ND
ND
ND
ND
ND
ND
1.22
ND
0.09 U
0.02 U
ND
0.22
0.66
ND
ND
ND
0.29
ND
ND
ND
u = Less tnan the detection limit.
 = Sample not collected in field
4 Of 7
                                                                  ScamsSjds
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                        TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
RLE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 -TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 -TETRACHLOROETHANE
0- XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS5 9559
6/18/97
7/23/97
K/LGV011
ppbv
2.33
0,88
0.55
ND
0.06 U
ND
ND
0.15
ND
ND
ND
ND
0.12
ND
0.30
0.75
0.09
ND
ND
0.13
ND
ND
ND
2.53
ND
0.18 U
0.09 U
ND
0.77
3.09
ND
0.05 U
ND
1.01
ND
ND
ND
CAMS5 9578
6/19/97
7/23/97
K/LGV019
ppbv
1.50
0.34
0.67
ND
ND
ND
ND
0.08 U
ND
ND
ND
ND
ND
ND
0.11
0.56
0.10
ND
ND
ND
ND
ND
ND
1.12
ND
ND
0.17 U
ND
0.20
0.55
ND
ND
ND
0.25
ND
NO
ND
CAMS5 9575
6/20/97
7/24/97
K/LGW013
ppbv
0.87
0.33
0.57
ND
ND
ND
ND
0.01 U
ND
ND
ND
ND
0.03 U
ND
0.09
0.41
0.07
ND
ND
ND
ND
ND
ND
0,88
ND
0.04 U
0.39
ND
0.17
0.48
ND
ND
ND
0.22
ND
ND
ND
u = Less man trie Detection limit.
 = Sample not collected in field
5 of 7
                                                                 tomsixls
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                         TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
RLE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o- XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS5 9652
6/23/97
7/24/97
K/LGW012
ppbv
0.42
0.56
0.52
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.08
0.41
0.08
ND
ND
ND
ND
ND
ND
1.00
ND
0.03 U
0.13 U
ND
0.19
0.58
ND
ND
ND
0.25
ND
ND
ND
CAMS5 9654
6/24/97
7/23/97
K/LGW008
ppbv
0.64
0.34
0.57
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.09
0.41
0.07
ND
ND
ND
ND
ND
ND
0.82
ND
0.05 U
0.03 U
ND
0.16
0.46
ND
0.15
ND
0.22
ND
ND
ND
CAMS5 9680
6/25/97
7/23/97
K/LGW005
ppbv
3.28
0.87
0.50
ND
0.04 U
ND
ND
0.20
ND
ND
ND
ND
0.09
ND
0.24
0.94
0.08
ND
ND
0.05
ND
ND
ND
3.18
ND
0.24
0.16
ND
0.64
1.74
ND
0.20
ND
0.67
ND
0.05 U
ND
U = Less than the detection limit.
+ = Sample not collected in field
6of7
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                        TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
RLE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1-DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 -TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 • TETRACHLOROETHANE
o- XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o- DICHLOROBENZENE
CAMS5 9684
6/26/97
7/24/97
K/LGX006
ppbv
1.39
0.40
0.51
ND
ND
ND
ND
0.06 U
ND
ND
ND
ND
ND
ND
0.16
0.50
0.06
ND
ND
ND
ND
ND
ND
1.05
ND
0.06 U
0.03 U
ND
0.18
0.55
ND
ND
ND
0.25
ND
ND
ND
CAMS5 9692
6/27/97
7/24/97
K/LGX004
ppbv
1.80
0.63
0.55
ND
ND
ND
ND
0.05 U
ND
ND
ND
ND
0.05 U
ND
0.11
0.72
0.07
ND
ND
ND
ND
ND
ND
1.49
ND
0.08 U
0.11 U
ND
0.26
0.79
ND
0.23
ND
0.36
ND
ND
ND
CAMS5 9700
6/30/97
7/25/97
K/LGX0009
ppbv
0.79
0.29
0.66
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.09
0.43
0.08
ND
ND
ND
ND
ND
ND
1.12
ND
0.06 U
0.28
ND
0.18
0.54
ND
ND
ND
0.24
ND
ND
ND
u = Less tnan the detection limit.
 = Sample not collected in field
7 of 7
                                 6cams5.xls
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                        TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1 ,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 -DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - D1CHLOROPROPENE
trans • 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o-XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
0 - DICHLOROBENZENE
CAMS59703
7/1/97
7/25/97
L7GX013
ppbv
0.67
0.35
0.67
ND
ND
ND
ND
0.02 U
ND
ND
ND
ND
ND
ND
0.07
0.36
0.07
ND
ND
ND
ND
ND
ND
0.99
ND
0.50
ND
ND
0.21
0.82
ND
ND
ND
0.29
ND
ND
ND
CAMS5 9819
7/2/97
7/28/97
L7GI007
ppbv
1.03
0.40
0.53
ND
ND
ND
ND
0.02 U
ND
ND
ND
ND
ND
ND
0.08
0.44
0.07
ND
ND
ND
ND
ND
ND
1.04
ND
ND
ND
ND
0.22
0.70
ND
ND
ND
0.29
ND
ND
ND
CAMS59823
7/3/97
7/30/97
L7GS005
ppbv
0.89
0.31
0.58
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.08
0.34
0.05
ND
ND
ND
ND
ND
ND
1.03
ND
ND
ND
ND
0.16
0.48
ND
ND
ND
0.21
ND
ND
ND
U = Less than the detection limit.
                                1 of 12
                                                                7cam5.xls
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                        TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTAD1ENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1-DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 -TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o-XYLENE
m - DICHLOROBENZENE
p-DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS5 9836
7/7/97
7/31/97
L7G%010
ppbv
0.79
0.27
0.52
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.08
0.69
0.07
ND
ND
ND
ND
ND
ND
1.82
ND
ND
ND
ND
0.27
0.80
ND
ND
ND
0.38
ND
ND
ND
CAMS5 9900
7/8/97
8/1/97
L7G%012
ppbv
0.91
0.33
0.75
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.07
0.40
0.05
ND
ND
ND
ND
ND
ND
1.06
ND
ND
0.04 U
ND
0.16
0.45
ND
ND
ND
0.19
ND
ND
ND
CAMS5 9907
7/9/97
8/1/97
L7G%013
ppbv
1.03
0.34
0.46
ND
ND
ND
ND
0.06 U
ND
ND
ND
ND
ND
ND
0.08
0.49
0.06
ND
ND
ND
ND
ND
ND
1.29
ND
0.06 U
0.47
ND
0.18
0.51
ND
ND
ND
0.22
ND
ND
ND
U = Less than the detection limit.
                                2 of 12
                                                               7camSxls
-------
199/
                 (SKtUlAltU NUN-Mt I HANt UKUANIU UUMKUUNUOJ - UK BAN
                             TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o - XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o • DICHLOROBENZENE
CAMS5 9957
7/10/97
8/31/97#
L7H3034
ppbv
0.35
0.21
0.23
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.09
0.38
0.08
ND
ND
ND
ND
ND
ND
0.98
ND
0.05 U
ND
ND
0.18
0.47
ND
0.03 U
ND
0.25
ND
ND
ND
CAMS5 9981 D1
7/11/97
7/28/97
L7GF010
ppbv
1.06
0.53
0.49
ND
ND
NO
ND
ND
ND
ND
ND
ND
ND
ND
0.07
0.49
0.07
ND
ND
ND
ND
ND
ND
1.23
ND
0.05 U
0.11 U
ND
0.22
0.64
ND
ND
ND
0.28
ND
ND
ND
CAMS5 9981 R1
7/11/97
8/20/97
L7HR022
ppbv
0.41
0.58
0.42
ND
ND
ND
ND
0.07
ND
ND
ND
ND
ND
ND
0.35
(U6
0.08
ND
ND
ND
ND
ND
ND
1.21
ND
0.07
0.09
ND
0.20
0.60
ND
0.06
ND
0.25
ND
ND
ND
U = Less than the detection limit.
                                       3 of 12
                                                                             7cam5.xls
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                       TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 -DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 -TETRACHLOROETHANE
o - XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS5 9982D2
7/11/97
7/28/97
L7G1011
ppbv
1.05
0.34
0.49
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.08
0.46
0.06
ND
ND
ND
ND
ND
ND
1.10
ND
0.07 U
0.10 U
ND
0.19
0.54
ND
ND
ND
0.24
ND
ND
ND
CAMS5 9982R2
7/11/97
8/20/97
L7HR023
ppbv
0.50
0.35
0.46
NO
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.06
0.37
0.08
ND
ND
ND
ND
NO
ND
1.15
ND
0.06
0.09
ND
0.19
0.59
ND
ND
ND
0.25
ND
ND
ND
CAMS5 9978
7/14/97
8/7/97
L7HG012
ppbv
1.34
0.54
0.51
ND
ND
ND
ND
0.06 U
ND
ND
ND
ND
ND
ND
0.09
0.62
0.08
ND
ND
ND
ND
ND
ND
1.89
ND
0.11 U
0.10 U
ND
0.34
1.12
ND
ND
ND
0.44
ND
ND
ND
U = Less than the detection limit.
                                4 of 12
                                                               7cam5.xls
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                       TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 -DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 -TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o-XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS5 10025
7/15/97
8/8/97
L7HG015
ppbv
1.73
0.56
0.48
ND
ND
ND
ND
0.15
ND
ND
ND
ND
0.09
ND
0.13
0.62
0.07
ND
ND
ND
ND
ND
ND
1.91
ND
0.08 U
0.53
ND
0.48
1.94
ND
0.07 U
ND
0.64
ND
ND
ND
CAMS5 10043
7/16/97
8/8/97
L7HG019
ppbv
1.89
0.75
0.52
ND
ND
ND
ND
0.21
ND
ND
ND
ND
0.11
ND
0.12
0.87
0.07
ND
ND
ND
ND
ND
ND
2.30
ND
0.08 U
0.14 U
ND
0.39
1.12
ND
0.10
ND
0.52
ND
ND
ND
CAMS510053D1
7/17/97
7/29/97
L7G1014
ppbv
1.58
0.57
0.59
ND
ND
ND
ND
0.09
ND
ND
ND
ND
ND
ND
0.10
0.75
0.07
ND
ND
ND
ND
ND
ND
1.62
ND
0.07 U
0.10 U
ND
0.25
0.71
ND
ND
ND
ND
0.34
ND
ND
U = Less than the detection limit.
-------
1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                  TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2- DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
els - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 -TETRACHLOROETHANE
o- XYLENE
m - DICHLOROBENZENE
p-DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS5 10053R1
7/17/97
7/30/97
L7G$013
ppbv
1.70
0.59
0.58
ND
ND
ND
ND
0.09
ND
ND
ND
ND
ND
ND
0.08
0.64
0.05
ND
ND
ND
ND
ND
ND
1.58
ND
0.06 U
0.09 U
ND
0.25
0.70
ND
ND
ND
0.35
ND
ND
ND
CAMS5 10054D2
7/17/97
7/29/97
L7GS015
ppbv
1.55
0.62
0.55
ND
ND
ND
ND
0.12
ND
ND
ND
ND
ND
ND
0.10
0.74
0.07
ND
ND
ND
ND
ND
ND
1.80
ND
0.09 U
0.10 U
ND
0.27
0.70
ND
ND
ND
0.37
ND
ND
ND
CAMS5 10054R2
7/17/97
7/30/97
L7G$014
ppbv
1.73
0.58
0.67
ND
ND
ND
ND
0.10
ND
ND
ND
ND
ND
ND
0.07
0.67
0.05
ND
ND
ND
ND
ND
ND
1.75
ND
0.09 U
0.09 U
ND
0.25
0.73
ND
ND
ND
0.35
ND
ND
ND
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                       TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1-DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2-DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o - XYLENE
m - DICHLOROBENZENE
p-DICHLOROBENZENE
o - DICHLOROBENZENE
CAMSS 10060
7/18/97
8/8/97
L7HG018
ppbv
1.17
0.39
0.47
ND
ND
ND
ND
0.04 U
ND
ND
ND
ND
ND
ND
0.09
0.65
0.07
ND
ND
ND
ND
ND
ND
1.42
ND
0.08 U
0.07 U
ND
0.25
0.73
ND
ND
ND
0.32
ND
ND
ND
CAMSS 10185
7/21/97
8/8/97
L7HH006
ppbv
0.87
0.43
0.82
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.09
0.59
0.08
ND
ND
ND
ND
ND
ND
2.00
ND
0.08 U
0.04 U
ND
0.32
0.98
ND
ND
ND
0.40
ND
ND
ND
CAMSS 10193
7/22/97
8/8/97
L7HH009
ppbv
0.77
0.30
0.50
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.08
0.37
0.08
ND
ND
ND
ND
ND
ND
1.24
ND
0.07 U
0.05 U
ND
0.20
0.59
ND
ND
ND
0.24
ND
ND
ND
U = Less than the detection limit.
                               7 of 12
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                        TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1-DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
bans - 1,3 - DICHLOROPROPENE
1 ,1 ,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
0 • XYLENE
m - DICHLOROBENZENE
p -DICHLOROBENZENE
0 - DICHLOROBENZENE
CAMS5 10206D1
7/23/97
8/20/97
L7HR014
ppbv
1.25
0.78
0.55
ND
ND
ND
ND
0.09
ND
ND
ND
ND
ND
ND
0.27
0.58
0.08
ND
ND
ND
ND
ND
ND
2.02
ND
0.10
0.10
ND
0.28
0.85
ND
ND
ND
0.37
ND
ND
ND
CAMS5 10206R1
7/23/97
8/20/97
L7HS004
ppbv
1.05
0.75
0.50
ND
ND
ND
ND
0.06
ND
ND
ND
ND
ND
ND
0.26
0.58
0.07
ND
ND
ND
ND
ND
ND
2.09
ND
0.08
0.09
ND
0.28
0.82
ND
ND
ND
0.36
ND
ND
ND
CAMS5 10207D2
7/23/97
8/20/97
L7HR015
ppbv
1.20
0.90
0.53
ND
ND
ND
ND
0.11
ND
ND
ND
ND
ND
ND
0.27
0.60
0.08
ND
ND
ND
ND
ND
ND
2.00
ND
0.08
0.10
ND
0.27
0.79
ND
ND
ND
0.34
ND
ND
ND
U = Less than the detection limit.
                                8 of 12
                                                               7cam5.xls
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                        TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 -DICHLOROETHANE
1,1,1-TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 -DICHLOROPROPANE
BROMODICHLOROMETHANE
TR1CHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o - XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
0 - DICHLOROBENZENE
CAMS5 10207R2
7/23/97
8/20/97
L7HS005
ppbv
0.95
0.77
0.57
ND
ND
ND
ND
0.06
ND
ND
ND
ND
ND
ND
0.22
0.60
0.07
ND
ND
ND
ND
ND
ND
2.08
ND
0.07
0.10
ND
0.27
0.81
ND
0.04
ND
0.36
ND
ND
ND
CAMS5 10295
7/24/97
8/9/97
L7HH018
ppbv
1.29
0.43
0.50
ND
ND
ND
ND
0.11
ND
ND
ND
ND
0.06
ND
0.08
0.62
0.06
ND
ND
ND
ND
ND
ND
2.11
ND
0.11 U
0.42
ND
0.31
1.03
ND
0.12
ND
0.43
ND
ND
ND
CAMS5 10299
7/25/97
8/9/97
L7HH015
ppbv
0.97
0.33
0.52
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.04 U
ND
0.07
0.54
0.08
ND
ND
ND
ND
ND
ND
1.48
ND
0.10 U
0.61
ND
0.25
0.74
ND
0.16
ND
0.31
ND
ND
ND
U = Less than the detection limit.
                                9 Of 12
                                                               7cam5.xls
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                       TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 -DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 -TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBEN2ENE
m,p - XYLENE
BROMOFORM
STYRENE
1 ,1 ,2,2 - TETRACHLOROETHANE
o- XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS5 10376
7/28/97
8/21/97
L7HS012
ppbv
0.62
0.50
0.47
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.12
ND
0.09
0.66
0.07
ND
ND
ND
ND
ND
ND
2.08
ND
0.14
0.17
ND
0.38
1.21
ND
ND
ND
0.55
ND
ND
ND
CAMS5 10392D1
7/29/97
8/20/97
L7HR021
ppbv
1.39
O.S8
0.46
ND
ND
ND
ND
0.10
ND
ND
ND
ND
0.10
ND
0.09
0.64
0.08
ND
ND
ND
ND
ND
ND
2.05
ND
0.08
0.06
ND
0.31
0.94
ND
ND
ND
0.43
ND
ND
ND
CAMS510392R1
7/29/97
8/21/97
L7HS011
ppbv
0.59
0.58
0.43
ND
ND
ND
ND
0.11
ND
ND
ND
ND
0.09
ND
0.09
0.70
0.08
ND
ND
ND
ND
ND
ND
1.95
ND
0.10
0.06
ND
0.32
0.99
ND
ND
ND
0.44
ND
ND
ND
U = Less than the detection limit.
                               10 of 12
                                                               7cam5 xls
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                        TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 -DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 -TETRACHLOROETHANE
o - XYLENE
m - DICHLOROBENZENE
p-DlCHLOROBENZENE
o - DICHLOROBENZENE
CAMS5 10393D2
7/29/97
8/20/97
L7HR020
ppbv
0.99
0.57
0.42
ND
ND
ND
ND
0.11
ND
ND
ND
ND
0.09
ND
0.10
0.80
0.09
ND
ND
ND
ND
ND
ND
1.87
ND
0.08
0.06
ND
0.29
0.93
ND
ND
ND
0.40
ND
ND
ND
CAMS5 10393R2
7/29/97
8/21/97
L7HS010
ppbv
1.30
0.52
0.43
ND
ND
ND
ND
0.11
ND
ND
ND
ND
0.10
ND
0.09
0.69
0.08
ND
ND
ND
ND
ND
ND
1.91
ND
0.10
0.07
ND
0.31
0.90
ND
ND
ND
0.44
ND
ND
ND
CAMS5 10421
7/30/97
8/23/97
L7HV017
ppbv
0.48
0.35
0.45
ND
ND
ND
ND
0.03 U
ND
ND
ND
ND
ND
ND
0.12
1.46
0.08
ND
ND
ND
ND
ND
ND
5.59
ND
0.26
ND
ND
0.98
2.95
ND
ND
ND
1.41
ND
ND
ND
U = Less than the detection limit.
                                11 of 12
                                                                7cam5.xls
-------
    1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                             TOXICS OPTION REPORT
                  SAMPLE SITE #
                  SAMPLE DATE
                  ANALYSIS DATE
                  FILE NAME
                  UNITS
                  ACETYLENE
                  PROPYLENE
                  CHLOROMETHANE
                  VINYL CHLORIDE
                  1,3-BUTADlENE
                  BROMOMETHANE
                  CHLOROETHANE
                  METHYLENE CHLORIDE
                  trans -1,2 - DICHLOROETHYLENE
                  1,1 - DICHLOROETHANE
                  CHLOROPRENE
                  BROMOCHLOROMETHANE
                  CHLOROFORM
                  1,2-DICHLOROETHANE
                  1,1,1 - TRICHLOROETHANE
                  BENZENE
                  CARBON TETRACHLOR1DE
                  1,2 - DICHLOROPROPANE
                  BROMODICHLOROMETHANE
                  TRICHLOROETHYLENE
                  cis -1,3 - DICHLOROPROPENE
                  trans -1,3 - DICHLOROPROPENE
                  1,1,2 -TRICHLOROETHANE
                  TOLUENE
                  DIBROMOCHLOROMETHANE
                  N-OCTANE
                  TETRACHLOROETHYLENE
                  CHLOROBENZENE
                  ETHYLBENZENE
                  m,p-XYLENE
                  BROMOFORM
                  STYRENE
                  1,1,2,2 - TETRACHLOROETHANE
                  0 -XYLENE
                  m - DICHLOROBENZENE
                  p - DICHLOROBENZENE
                  o - DICHLOROBENZENE
U = Less than the detection limit.
CAMS510422
  7/31/97
  8/23/97
  L7HV018
   ppbv
   1.17
   0.55
   0.41
   ND
   ND
   ND
   ND
   ND
   ND
   ND
   ND
   ND
   ND
   ND
   0.09
   0.67
   0.07
   ND
   ND
   ND
   ND
   ND
   ND
   1.60
   ND
   0.08
   0.17
   ND
   0.31
   0.80
   ND
   ND
   ND
   0.40
   ND
   ND
   ND
U
                                        12 of 12
                                                                                7cam5.xls
-------
    1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                          TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1-DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 -TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N -OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 -TETRACHLOROETHANE
o - XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
0 - DICHLOROBENZENE
CAMS5 10515
8/1/97
8/24/97
L7HW004
ppbv
0.49
0.14
0.39
ND
ND
ND
ND
0.08 U
ND
ND
ND
ND
ND
ND
0.10
0.57
0.07
ND
ND
ND
ND
ND
ND
1.88
ND
0.08 U
0.06 U
ND
0.32
0.98
ND
ND
ND
0.43
ND
ND
ND
CAMS5 10545D1
8/4/97
ppbv
*
*
*
*
*
*
*
*
*
*
*
*
*
-*
*
*
*
«
*
*
*
*
*
•
*
*
*
*
*
*
*
*
*
*
*
*
*
CAMS5 10546D2
8/4/97
8/24/97
L7HW007
ppbv
0.53
0.25
0.49
ND
ND
ND
ND
0.05 U
ND
ND
ND
ND
0.07
ND
0.10
0.72
0.09
ND
ND
ND
ND
ND
ND
1.87
ND
0.09 U
0.22
ND
0.87
ND
ND
ND
ND
0.42
ND
ND
ND
U = Less than the detection limit.
# = Sample voided in field
* = Vacuum Criteria Exceeded
lof 11
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                          TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 -DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 -TETRACHLOROETHANE
o-XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS5 10536
8/5/97
8/24/97
L7HW009
ppbv
0.16
0.42
0.54
ND
ND
ND
ND
0.23
ND
ND
ND
ND
ND
ND
0.16
1.51
0.07
ND
ND
ND
ND
ND
ND
10.71
ND
0.81
0.38
ND
1.13
3.15
ND
ND
ND
1.46
ND
ND
ND
CAMS5 10552
8/6/97
9/26/97
L712005
ppbv
1.05
0.44
0.44
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.07
0.45
0.06
ND
ND
ND
ND
ND
ND
1.26
ND
0.07 U
0.02 U
ND
0.21
0.66
ND
0.03
ND
0.28
ND
ND
ND
CAMS5 10560
8/7/97
8/30/97
L7H0022
ppbv
0.55
0.19
0.25
ND
ND
ND
ND
0.03 U
ND
ND
ND
ND
ND
ND
0.06
0.31
0.05
ND
ND
ND
ND
ND
ND
0.68
ND
0.04 U
ND
ND
0.22
0.62
ND
ND
ND
0.33
ND
ND
ND
U = Less than the detection limit.
# = Sample voided in field
* = Vacuum Criteria Exceeded
                                   2of11
                                                                     8camS.xls
-------
i_i_/ iiisn-  i_ 1
   TOXICS OPTION REPORT
                                                                irvjiviruunuo; - UKDMN
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 -TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o - XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS5 10579
8/8/97
8/30/97
L7H#027
ppbv
0.23
0.26
0.26
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.10
0.37
0.07
ND
ND
ND
ND
ND
ND
0.90
ND
0.05 U
ND
ND
0.16
0.45
ND
ND
ND
0.24
ND
ND
ND
CAMS5 10570
8/11/97
8/31/97
L7H#033
ppbv
0.73
0.12
0.36
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.08
0.51
0.08
ND
ND
ND
ND
ND
ND
1.34
ND
0.08 U
ND
ND
0.24
0.67
ND
ND
ND
0.35
ND
ND
ND
CAMS5 10653
8/12/97
9/2/97
L7IB041
ppbv
0.93
0.24
0.27
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.09
0.40
0.07
ND
ND
ND
ND
ND
ND
0.97
ND
0.04 U
0.05 U
ND
0.17
0.48
ND
0.08 U
ND
0.25
ND
ND
ND
U = Less than the detection limit.
# = Sample voided in field
* = Vacuum Criteria Exceeded
              3 of 11
                                                                                        6cam5.xls
-------
omviUL,
                             I tU NON-MC I riANt UKUANIU UUMKUUNUS) - UKBAN
                                TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o - XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS5 10651
8/13/97
9/3/97
L7IB016
ppbv
0.71
0.35
0.24
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.11
0.57
0.08
ND
ND
ND
ND
ND
ND
1.41
ND
0.08 U
0.03 U
ND
0.23
0.63
ND
0.05 U
ND
0.33
ND
ND
ND
CAMS5 10678
8/14/97
9/3/97
L7IB016
ppbv
0.71
0.35
0.24
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.11
0.57
0.08
ND
ND
ND
ND
ND
ND
1.41
ND
0.08 U
ND
ND
0.23
0.63
ND
0.05 U
ND
0.33
ND
ND
ND
CAMS5 10699D1
8/15/97
8/26/97
L7HY021
ppbv
0.50
0.11
0.39
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.07
0.28
0.07
ND
ND
0.06
ND
ND
ND
0.86
ND
0.03 U
ND
ND
0.22
0.67
ND
ND
ND
0.28
ND
ND
ND
U = Less than the detection limit.
# = Sample voided in field
* = Vacuum Criteria Exceeded
                                  4 of 11
                                                                                       ScamSjds
-------
    1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                          TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 • DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 -TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o - XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS5 10699R1
8/15/97
8/29/97
L7HS019
ppbv
0.26
0.17
0.71
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.04 U
0.31
0.07
ND
ND
ND
ND
ND
ND
0.82
ND
ND
ND
ND
0.20
0.68
ND
ND
ND
0.29
ND
ND
ND
CAMS5 10700D2
8/15/97
9/3/97
L7IB021
ppbv
0.37
0.18
0.21
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.08
0.34
0.08
ND
ND
ND
ND
ND
ND
0.94
ND
0.04 U
ND
ND
0.17
0.48
ND
0.03 U
ND
0.26
ND
ND
ND
CAMS5 10700R2
8/15/97
8/29/97
L7HI020
ppbv
0.24
0.10
0.66
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.06
0.32
0.06
ND
ND
0.07
ND
ND
ND
0.90
ND
ND
ND
ND
0.20
0.70
ND
ND
ND
0.27
ND
ND
ND
U = Less than the detection limit.
# = Sample voided in field
* = Vacuum Criteria Exceeded
5of 11
                                                                    8cam5.xls
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                         TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 • TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
Cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 -TETRACHLOROETHANE
o - XYLENE
m • DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS5 10692
8/18/97
9/3/97
L71D020
ppbv
0.40
0.21
0.29
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.09
0.38
0.08
ND
ND
. ND
ND
ND
ND
1.21
ND
0.08 U
ND
ND
0.37
1.33
ND
0.06 U
ND
0.50
ND
ND
ND
CAMS5 10844
8/19/97
9/3/97
L7IC006
ppbv
0.52
0.21
0.30
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.10
0.32
0.08
ND
ND
ND
ND
ND
ND
0.97
ND
0.05 U
ND
ND
0.17
0.51
ND
0.03 U
ND
0.26
ND
ND
ND
CAMS5 10849
8/20/97
9/3/97
L7IC009
ppbv
0.80
0.33
0.23
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.10
0.44
0.07
ND
ND
ND
ND
ND
ND
1.21
ND
0.08 U
ND
ND
0.23
0.68
ND
0.04 U
ND
0.36
ND
ND
ND
U = Less than the detection limit.
# = Sample voided in field
* = Vacuum Criteria Exceeded
6 of 11
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                          TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 -TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 -TETRACHLOROETHANE
o - XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS5 10854D1
8/21/97
9.19
L7II005
ppbv
1.79
0.95
0.46
ND
0.07 U
ND
ND
0.06 U
ND
ND
ND
ND
0.06
ND
0.12
0.81
0.09
ND
ND
ND
ND
ND
ND
1.78
ND
0.09 U
0.15 U
ND
0.28
0.83
ND
0.23
ND
0.40
ND
ND
ND
CAMS510854R1
8/21/97
9/10/97
L71J009
ppbv
2.05
0.94
0.59
ND
0.11
ND
ND
0.05 U
ND
ND
ND
ND
ND
ND
0.11
0.75
0.08
ND
ND
ND
ND
ND
ND
1.87
ND
0.09 U
0.15 U
ND
0.31
0.88
ND
0.28
ND
0.42
ND
ND
ND
CAMS5 10855D2
8/21/97
9/9/97
L7II006
ppbv
2.03
0.97
0.50
ND
0.07 U
ND
ND
0.06 U
ND
ND
ND
ND
ND
ND
0.14
0.94
0.09
ND
ND
ND
ND
ND
ND
1.89
ND
0.08 U
0.16 U
ND
0.31
0.91
ND
0.07 U
ND
0.43
ND
ND
ND
U = Less than the detection limit.
# = Sample voided in field
* = Vacuum Criteria Exceeded
7 of 11
                                  Scams.ids
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                         TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VJNYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - D1CHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 -TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 • DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o- XYLENE
m - DICHLOROBENZENE
p- DICHLOROBENZENE
0 - DICHLOROBENZENE
CAMS5 10855R2
8/21/97
9/10/97
L7IJ010
ppbv
2.20
1.00
0.52
ND
0.07
ND
ND
0.08 U
ND
ND
ND
ND
ND
ND
0.11
0.85
ND
ND
ND
ND
ND
ND
ND
2.01
ND
0.12 U
0.18 U
ND
0.34
1.01
ND
0.08
ND
0,48
ND
ND
ND
CAMS5 10874
8/22/97
9/4/97
L71C013
ppbv
1.34
0.38
0.32
ND
ND
ND
ND
0.06 U
ND
ND
ND
ND
ND
ND
0.11
0.66
0.09
ND
ND
ND
ND
ND
ND
1.62
ND
0.10 U
0.32 U
ND
0.27
0.78
ND
0.06 U
ND
0.40
ND
ND
ND
CAMS5 10910
8/25/97
9/4/97
L7IC018
ppbv
0.77
ND
0.26
0.56
ND
ND
ND
0.06 U
ND
ND
ND
ND
0.12
ND
0.12
0.76
0.08
ND
ND
ND
ND
ND
ND
1.75
ND
0.11 U
0.22
ND
0.31
0.89
ND
0.03 U
ND
0.45
ND
0.08 U
ND
U = Less than the detection limit.
# = Sample voided in field
* = Vacuum Criteria Exceeded
8 of 11
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                          TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DJCHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2- DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o- XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o • DICHLOROBENZENE
CAMS511019
8/26/97
9/4/97
L7ID004
ppbv
0.73
0.20
0.23
ND
ND
ND
ND
0.07 U
ND
ND
ND
ND
0.05 U
ND
0.10
0.51
0.09
ND
ND
ND
ND
ND
ND
1.14
ND
0.07 U
0.66
ND
0.20
0.56
ND
0.22
ND
0.30
ND
ND
ND
CAMS5 10972D1
8/27/97
9/16/97
L7IO021
ppbv
1.65
0.58
0.48
ND
ND
ND
ND
NO
ND
ND
ND
ND
ND
ND
0.15
0.74
0.08
ND
ND
ND
ND
ND
ND
1.44
ND
0.08 U
0.43
ND
0.21
0.62
ND
0.08 U
ND
0.30
ND
ND
ND
CAMS5 10972R1
8/27/97
9/11/97
L7IJD19
ppbv
1.34
0.49
0.47
ND
ND
ND
ND
0.02 U
ND
ND
ND
ND
ND
ND
0.11
0.74
0.07
ND
ND
ND
ND
ND
ND
1.53
ND
0.08 U
0.40
ND
0.25
0.73
ND
0.11
ND
0.34
ND
ND
ND
U = Less than the detection limit.
# = Sample voided in field
* = Vacuum Criteria Exceeded
9 Of 11
                                                                    8cam5.xte
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                          TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1-DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2-DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 -TETRACHLOROETHANE
o-XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS5 10973D2
8/27/97
9/10/97
L7II015
ppbv
1.23
0.48
0.40
ND
ND
ND
ND
0.04 U
ND
ND
ND
ND
ND
ND
0.11
0.71
0.08
ND
ND
ND
ND
ND
ND
1,49
ND
0.08 U
0.44
ND
0.26
0.71
ND
0.10
ND
0.34
ND
0.02 U
ND
CAMS510973R2
8/27/97
9/16/97
L7IO021
ppbv
1.65
O.S8
0.48
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.15
0.74
0.08
ND
ND
ND
ND
ND
ND
1.44
ND
0.08 U
0.43
ND
0.21
0.62
ND
0.08
ND
0.30
ND
ND
ND
8/28/97
ppbv
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
U = Less than the detection limit.
# = Sample voided in field
* = Vacuum Criteria Exceeded
                                  10 of 11
                                                                     8camS.xls
-------
    1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                              TOXICS OPTION REPORT
                   SAMPLE SITE #
                   SAMPLE DATE
                   ANALYSIS DATE
                   FILE NAME
                   UNITS
                  ACETYLENE
                  PROPYLENE
                  CHLOROMETHANE
                  VINYL CHLORIDE
                  1,3-BUTADIENE
                  BROMOMETHANE
                  CHLOROETHANE
                  METHYLENE CHLORIDE
                  trans -1,2 - DICHLOROETHYLENE
                  1,1 - DICHLOROETHANE
                  CHLOROPRENE
                  BROMOCHLOROMETHANE
                  CHLOROFORM
                  1,2 - DICHLOROETHANE
                  1,1,1 - TRICHLOROETHANE
                  BENZENE
                  CARBON TETRACHLORIDE
                   ,2 - DICHLOROPROPANE
                  BROMODICHLOROMETHANE
                  TRICHLOROETHYLENE
                  cis -1,3 - DICHLOROPROPENE
                  rans -1,3 - DiCHLOROPROPENE
                   ,1,2 - TRICHLOROETHANE
                  •OLUENE
                  DIBROMOCHLOROMETHANE
                  M-OCTANE
                  TETRACHLOROETHYLENE
                  CHLOROBENZENE
                  ETHYLBENZENE
                  m,p-XYLENE
                  BROMOFORM
                  STYRENE
                  ,1,2,2 - TETRACHLOROETHANE
                  i-XYLENE
                  i - DICHLOROBENZENE
                   - DICHLOROBENZENE
                   • DICHLOROBENZENE
U = Less than the detection limit.
# = Sample voided in field
* = Vacuum Criteria Exceeded
             CAMS5 11047
               8/29/97
                9/5/97
               17ID014
                ppbv
                1.47
                0.39
                0.25
                ND
                ND
                ND
                ND
                0.05
                ND
                ND
                ND
                ND
                ND
                ND
                0.10
                0.60
                0.08
                ND
                ND
                ND
                ND
                ND
                ND
                1.46
                ND
                0.07
                0.09
                ND
               0.23
               0.65
                ND
               0.06
                ND
               0.34
                ND
                ND
                ND
U
11 of 11
                                                                                 ScamSjds
-------
 1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN TOXICS
                             OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
Cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m.p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o-XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS511058
9/1/97
ppbv
I
I
!
!
!
I
!
I
!
!
!
!
I
!
!
I
!
!
i
!
i
I
!
I
j
I
I
!
i
!
!
I
!
j
i
I
j
CAMS511121
9/3/97
9/16/97
LTfPOOS
ppbv
2.39
0.92
0.59
ND
0.03 U
ND
ND
0.20
ND
ND
ND
NO
0.06
ND
0.19
0.86
0.07
ND
ND
0.06
ND
ND
ND
10.77
ND
0.97
0.13 U
NO
0.43
1.20
ND
0.06 U
ND
0.51
ND
0.03 U
ND
CAMS5 11127
9/4/97
9/16/97
L7IP006
ppbv
0.99
0.34
0.43
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.07
0.42
0.07
ND
ND
ND
ND
ND
ND
0.97
ND
0.06 U
0.03 U
ND
0.18
0.51
ND
0.03 U
ND
0.23
ND
ND
ND
U = Less than the detection limit
* = Vacuum Criteria Exceeded
1 of 10
                                                                     BcamsS.xte
-------
  1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN TOXICS
                             OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 -TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m.p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o - XYLENE
m • DICHLOROBENZENE
p - DiCHLOROBENZENE
o • DICHLOROBENZENE
CAMS5 11197
9/5/97
9/17/97
L71P016
ppbv
1.16
0.51
0.45
ND
ND
ND
ND
0.05 U
ND
ND
ND
ND
ND
ND
0.08
0.55
0.07
ND
ND
ND
ND
ND
ND
1.23
ND
0.09 U
0.02 U
ND
0.20
0.62
ND
0.03 U
ND
0.28
ND
0.01 U
ND
CAMS511196
9/8/97
9/17/97
L7IP020
ppbv
1.36
0.39
0.53
ND
ND
ND
ND
0.05 U
ND
ND
ND
ND
ND
ND
0.08
0.63
0.07
ND
ND
ND
ND
ND
ND
1.60
ND
0.11 U
0.02 U
ND
0.31
0.93
ND
0.03 U
ND
0.38
ND
ND
ND
CAMS5 11212D1
9/9/97
9/18/97
L7IQ010
ppbv
2.02
0.61
0.50
ND
ND
ND
ND
0.07 U
ND
ND
ND
ND
ND
ND
0.10
0.60
0.08
ND
ND
ND
ND
ND
ND
1.63
ND
0.09 U
0.06 U
ND
0.23
0.66
ND
0.04 U
ND
0.31
ND
ND
ND
U = Less than the detection limit.
* = Vacuum Criteria Exceeded
2 of 10
-------
 1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN TOXICS
                             OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 -DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 -DICHLOROETHANE
1,1,1 -TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1 ,1 ,2,2 - TETRACHLOROETHANE
o - XYLENE
rn - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS5 11212R1
9/9/97
9/20/97
L7IR010
ppbv
2.24
0.69
0.52
ND
ND
ND
ND
0.10
ND
ND
ND
ND
ND
ND
0.10
0.64
0.07
ND
ND
ND
ND
ND
ND
1.68
ND
0.11 U
0.07 U
ND
0.24
0.70
ND
0.05 U
ND
0.31
ND
.0.01 U
ND
CAMS511213D2
9/9/97
9/18/97
L7IQ011
ppbv
2.00
0.66
0.51
ND
ND
ND
ND
0.08 U
ND
ND
ND
ND
ND
ND
0.09
0.61
0.08
ND
ND
ND
ND
ND
ND
1.71
ND
0.13 U
0.07 U
ND
0.24
0.74
ND
0.04 U
ND
0.33
ND
ND
ND
CAMS511213R2
9/9/97
9/20/97
L7IR011
ppbv
2.33
0.77
0.57
ND
ND
ND
ND
0.09
ND
ND
ND
ND
ND
ND
0.10
0.65
0.06
ND
ND
ND
ND
ND
ND
1.75
ND
0.12 U
0.07 U
ND
0.27
0.77
ND
0.05 U
ND
0.35
ND
ND
ND
U = Less than the detection limit.
* = Vacuum Criteria Exceeded
3 of 10
                                                                     Scams5.xls
-------
  1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN TOXICS
                              OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BRONIOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o - XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS5 11289
9/10/97
9/17/97
L7IQ005
ppbv
1.26
0.64
0.52
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.12
0.65
0.08
ND
ND
ND
ND
ND
ND
2.01
ND
0.12 U
0.08 U
ND
0.31
0.84
ND
0.08 U
ND
0.37
ND
0.17 U
ND
CAMS511283
9/11/97
9720/97
L71R020
ppbv
2.32
0.73
0.43
ND
ND
ND
ND
NO
ND
ND
ND
ND
ND
ND
0.08
0.65
0.05
ND
ND
ND
ND
ND
ND
1.28
ND
0.05 U
0.07 U
ND
0.23
0.65
ND
0.05 U
ND
0.29
ND
ND
ND
CAMS5 11303
9/12/97
9/23/97
L7IZ011
ppbv
1.63
0.55
0.51
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.04
ND
0.17
0.68
0.08
ND
ND
ND
ND
ND
ND
1.28
ND
0.07 U
ND
ND
0.21
0.64
ND
0.05 U
ND
0.29
ND
ND
ND
U = Less than the detection limit.
* = Vacuum Criteria Exceeded
4 Of 10
                                                                     Scams5.xls
-------
 1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN TOXICS
                              OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 -DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2-DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 -TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N -OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
0- XYLENE
m • DICHLOROBENZENE
p - DtCHLOROBENZENE
o - DICHLOROBENZENE
CAMS5 11292
9/15/97
ppbv
*
*
*
*
«
*
*
*
*
*
*
*
*
*
*
*
*
»
*
*
*
*
*
»
*
*
*
•
*
*
*
*
*
*
*
*
*
CAMS5 11297D1
9/15/97
9/18/97
L7IQ014
ppbv
1.99
0.43
0.56
NO
ND
NO
ND
ND
ND
ND
ND
ND
ND
ND
0.07
0.58
0.08
ND
ND
ND
ND
ND
ND
1.37
ND
0.08 U
ND
ND
0.26
0.71
ND
0.03 U
ND
0.32
ND
ND
ND
CAMS5 11297R1
9/15/97
9/20/97
L7JR014
ppbv
2.17
0.47
0.58
ND
ND
ND
ND
0.01 U
ND
ND
ND
ND
ND
ND
0.09
0.61
0.05
ND
ND
ND
ND
ND
ND
1.30
ND
0.06 U
ND
ND
0.25
0.67
ND
0.03 U
ND
0.30
ND
ND
ND
U = Less than the detection limit.
* = Vacuum Criteria Exceeded
5 of 10
                                                                     8cams5.xls
-------
  1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN TOXICS
                              OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o - XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS5 11298D2
9/15/97
9/18/97
L7IQ015
ppbv
2.13
0.51
0.60
ND
NO
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.09
0.58
0.07
ND
ND
ND
ND
ND
ND
1.29
ND
0.08 U
ND
ND
0.25
0.78
ND
0.03 U
ND
0.32
ND
ND
ND
CAMS511298R2
9/15/97
9/20/97
L7IR015
ppbv
1.99
0.56
0.51
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.07
0.58
0.05
ND
ND
ND
ND
ND
ND
1.21
ND
0.09 U
ND
NO
0.24
0.73
ND
0.04 U
ND
0.32
ND
ND
ND
CAMS5 11323
9/16/97
9/24/97
L7IX013
ppbv
1.20
0.40
0.64
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.07
0.35
0.06
ND
ND
ND
ND
ND
ND
0.90
ND
0.06 U
0.05 U
ND
0.15
0.45
ND
0.03 U
ND
0.20
ND
ND
ND
U = Less than the detection limit.
* = Vacuum Criteria Exceeded
6 Of 10
-------
 1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN TOXICS
                             OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 -TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE

m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o - XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS511349
9/17/97
9/26/97
I7IY018
ppbv
1.68
0.37
0.51
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.05
0.30
0.07
ND
ND
ND
ND
ND
ND
0.79
ND
0.05 U
0.02 U
ND
0.13

0.40
ND
0.18
ND
ND
ND
ND
ND
CAMS511359
9/18/97
9/26/97
L7IY019
ppbv
1.32
0.41
0.47
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.07
0.39
0.06
ND
ND
ND
ND
ND
ND
0.98
ND
0.07 U
0.06 U
ND
0.17

0.48
ND
0.09 U
ND
0.22
ND
ND
ND
CAMS511371
9/19/97
9/27/97
L7IZ013
ppbv
1.39
0.42
0.43
ND
ND
ND
ND
0.01 U
ND
ND
ND
ND
ND
ND
0.11
0.41
0.07
ND
ND
ND
ND
ND
ND
0.88
ND
0.05 U
0.68
ND
0.15

0.40
ND
0.19
ND
0.18
ND
ND
ND
U = Less than the detection limit.
* = Vacuum Criteria Exceeded
7 of 10
-------
  1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) • URBAN TOXICS
                             OPTION REPORT
SAMPLE SITE*
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1-DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2-DICHLOROETHANE
1,1,1 -TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1 ,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o - XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS5 11367
9/22/97
9/27/97
L7IZ014
ppbv
1.10
0.44
0.49
ND
ND
ND
ND
0.02 U
ND
ND
ND
ND
ND
ND
0.08
0.62
0.06
ND
ND
ND
ND
ND
ND
1.51
ND
0.13 U
0.03 U
ND
0.25
0.78
ND
0.03 U
ND
0.35
ND
ND
ND
CAMS5 11403
9/23/97
9/26/97
L71Z010
ppbv
1.45
0.51
0.54
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.09
0.48
0.06
ND
ND
ND
ND
ND
ND
1.25
ND
0.06 U
0.02 U
ND
0.21
0.65
ND
0.04 U
ND
0.29
ND
ND
ND
CAMS5 11427
9/24/97
9/30/97
L7I$011
ppbv
1.42
0.41
0.39
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.09
0.45
0.07
ND
ND
ND
ND
ND
ND
1.06
ND
0.05 U
0.17 U
ND
0.18
0.57
ND
ND
ND
0.25
ND
ND
ND
U = Less than the detection limit
* = Vacuum Criteria Exceeded
8 of 10
-------
 1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN TOXICS
                             OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 • DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2-DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 -TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o- XYLENE
m - DICHLOROBENZENE
p - DtCHLOROBENZENE
o - DICHLOROBENZENE
CAMS5 11426
9/25/97
9/30/97
L7IS013
ppbv
1.11
0.29
0.40
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.08
0.37
0.07
ND
ND
ND
ND
ND
ND
0.87
ND
0.04 U
0.06 U
ND
0.16
0.47
ND
ND
ND
0.21
ND
ND
ND
CAMS5 11449
9/26/97
10/3/97
L7JC013
ppbv
2.69
1.08
0.43
ND
0.05 U
ND
ND
0.08 U
ND
ND
ND
ND
0.11
ND
0.14
1.08
0.08
ND
ND
ND
ND
ND
ND
2.99
ND
0.14 U
0.31
ND
0.34
1.10
ND
0.06 U
ND
0.47
ND
ND
ND
CAMS5 11457
9/29/97
10/4797
L7JC019
ppbv
1.56
0.60
0.31
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.08
0.62
0.06
ND
ND
ND
ND
ND
ND
1.58
ND
0.06 U
0.08 U
ND
0.27
0.84
ND
0.04 U
ND
0.38
ND
ND
ND
U = Less than the detection limit.
* = v-^ium rv ' Pvi	•- +
                                  9of10
                                                                   ScamsS.xte
-------
  1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN TOXICS
                                     OPTION REPORT
                    SAMPLE SITE #
                    SAMPLE DATE
                    ANALYSIS DATE
                    FILE NAME
                     UNITS
                    ACETYLENE
                    PROPYLENE
                    CHLOROMETHANE
                    VINYL CHLORIDE
                    1,3-BUTADIENE
                    BROMOMETHANE
                    CHLOROETHANE
                    METHYLENE CHLORIDE
                    trans -1,2 - DICHLOROETHYLENE
                    1,1-DICHLOROETHANE
                    CHLOROPRENE
                    BROMOCHLOROMETHANE
                    CHLOROFORM
                    1,2-DICHLOROETHANE
                    1,1,1 - TRICHLOROETHANE
                    BENZENE
                    CARBON TETRACHLORIDE
                    1,2 - DICHLOROPROPANE
                    BROMODICHLOROMETHANE
                    TRICHLOROETHYLENE
                    cis - 1,3 - DICHLOROPROPENE
                    trans -1,3 - DICHLOROPROPENE
                     ,1,2 - TRICHLOROETHANE
                    TOLUENE
                    DIBROMOCHLOROMETHANE
                    N-OCTANE
                    TETRACHLOROETHYLENE
                    CHLOROBENZENE
                    ETHYLBENZENE
                    m.p-XYLENE
                    BROMOFORM
                    STYRENE
                     ,1,2,2 - TETRACHLOROETHANE
                    O-XYLENE
                       DICHLOROBENZENE
                    p - DICHLOROBENZENE
                    o - DICHLOROBENZENE
            CAMS5 11445
               9/30/97
               10/4/97
              L7JC017
                ppbv
               1.87
               0.51
               0.45
               ND
               ND
               ND
               ND
               0.04
               ND
               ND
               ND
               ND
               0.09
               ND
               0.12
               0.89
               0.09
               ND
               ND
               ND
               ND
               ND
               ND
               1.70
               ND
               0.08
               0.08
               ND
               0.25
               0.7$
               ND
               0.07
               ND
               0.35
               ND
               0.05
               ND
U
U = Less than the detection limit.
* = Vacuum Criteria Exceeded
10 of 10
                                                                                    9omt5.xls
-------
    1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                         TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 -DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 • TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1 ,1 ,2,2 - TETRACHLOROETHANE
o-XYLENE
m - DICHLOROBENZENE
p .DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS13
6/2/97
ppbv
ft
#
ft
ft
ft
ft
ft
ft
ft
ft
ft
ft
ft
ft
ft
ft
ft
ft
ft
ft
ft
ft
ft
ft
ft
ft
ft
#
ft
ft
ft
ft
ft
ft
ft
ft
ft
CAMS139447
6/3/97
7/21/97
K/LGT009
ppbv
2.32
0.89
0.60
ND
0.08 U
0.06 U
ND
0.40
ND
ND
ND
ND
ND
ND
0.22
0.62
0.08
ND
ND
ND
ND
ND
ND
1.79
ND
0.08 U
1.19
ND
0.28
0.81
ND
0.08 U
ND
0.36
ND
ND
ND
CAMS13 9444
6/4/97
7/21/97
K/LGJ013
ppbv
2.28
0.72
0.66
ND
0.04 U
ND
ND
0.22
ND
ND
ND
ND
ND
ND
0.10
0.46
0.08
ND
ND
ND
ND
ND
ND
0.99
ND
0.07 U
2.50
NO
0.16
0.50
ND
ND
ND
0.22
ND
ND
ND
CAMS13 9451
6/5/97
7/31/97
K/LG%004
ppbv
0.20
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.07
ND
ND
ND
ND
ND
ND
ND
0.09 U
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
U = Less than the detection limit.
ft = Sample Voided in field
iof6
                                                                   6cam13xls
-------
    1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) • URBAN
                         TOXICS OPTION REPORT
MPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VJNYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
i 2 • DICHLOROETHANE
,1-TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DJCHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1 ,3 - DICHLOROPROPENE
1,1,2 • TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
XYLENE
. - DICHLOROBENZENE
p- DICHLOROBENZENE
|o - DICHLOROBENZENE
CAMS13 9465
6/6/97
7/21/97
K/LGU006
ppbv
3.92
1.42
0.55
ND
0.16
ND
ND
0.40
ND
ND
ND
ND
ND
ND
0.12
1.02
0.07
ND
ND
ND
ND
ND
ND
1.87
ND
0.13 U
0.09 U
ND
0.29
0.89
ND
0.07 U
ND
0.43
ND
ND
ND
CAMS13 9476
6/9/97
7/21/97
K/LGU007
ppbv
3.50
1.26
0.63
ND
0.11
ND
ND
0.23
ND
ND
ND
ND
ND
ND
0.11
0.85
0.07
ND
ND
ND
ND
ND
ND
2.09
ND
0.11 U
0.28
ND
0.30
0.93
ND
0.37
ND
0.44
ND
ND
ND
CAMS13 9494
6/10/97
7/22/97
K/LGV008
ppbv
1.13
0.76
0.61
ND
ND
ND
ND
0.29
ND
ND
ND
ND
ND
ND
0.12
0.59
0.07
ND
ND
ND
ND
ND
ND
1.43
ND
0.04 U
1.99
ND
0.19
0.58
ND
0.08 U
ND
0.27
ND
ND
ND
CAMS13 9500
6/11/97
7122197
K/LGU013
ppbv
7.55
2.83
0.58
ND
0.38
ND
ND
0.34
ND
ND
ND
ND
ND
ND
0.18
1.48
0.09
ND
ND
ND
ND
ND
ND
3.76
ND
0.15 U
0.21 U
ND
0.57
1.64
ND
0.14
ND
0.80
ND
ND
ND
U = Less than the detection limit.
# = Sample Voided in field
2 of 6
                                 6cam13.xit
-------
    1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                         TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 • D1CHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1 ,1 ,2,2 - TETRACHLOROETHANE
o -XYLENE
m . DICHLOROBENZENE
p .DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS13 9502
6/12/97
7/22/97
K/LGU016
ppbv
2.82
1.14
0.71
ND
0.02 U
ND
ND
0.19
ND
ND
ND
ND
ND
ND
0.19
0.64
0.09
ND
ND
ND
ND
ND
ND
1.24
ND
0.08 U
0.05 U
ND
0.19
0.60
ND
ND
ND
0.28
ND
ND
ND
CAMS139533
6/13/97
7/22/97
K/LGV006
ppbv
1.65
0.50
0.59
ND
ND
ND
ND
0.05 U
ND
ND
ND
ND
ND
ND
0.08 U
0.46
0.08 U
ND
ND
ND
ND
ND
ND
0.80
ND
ND
0.02 U
ND
0.14
0.40
ND
ND
ND
0.22
ND
ND
ND
CAMS13 9542
6/16/97
7/23/97
K/L6V010
ppbv
1.86
0.55
0.93
ND
ND
ND
ND
0.01 U
ND
ND
ND
ND
ND
ND
0.08
0.38
0.07
ND
ND
ND
ND
ND
ND
0.69
ND
0.04 U
0.03 U
ND
0.10
0.29
ND
ND
ND
0.13
ND
ND
ND
CAMS13 9544
6/17/97
6/17/97
K/LGV014
ppbv
1.09
0.24
0.62
ND
ND
ND
ND
0.03 U
ND
ND
ND
ND
ND
ND
0.08
0.17
0.07
ND
ND
ND
ND
ND
ND
0.35
ND
0.05 U
ND
ND
0.05 U
0.14 U
ND
ND
ND
0.07 U
ND
ND
ND
U = Less than the detection limit.
# = Sample Voided in field
3of6
                                                                   6cam13xls
-------
    1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                         TOXICS OPTION REPORT
MPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1-DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
".2 -DICHLOROETHANE
,1-TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1 ,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 -TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N -OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
tn,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
XYLENE
- DICHLOROBENZENE
jp - DICHLOROBENZENE
jo • DICHLOROBENZENE
CAMS13 9561
6/18/97
7/23/97
K/LV017
ppbv
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
CAMS13 9576
6/19/97
7/23/97
K/LGV018
ppbv
2.36
0.47
0.69
ND
ND
ND
ND
0.06 U
ND
ND
ND
ND
ND
ND
0.11
0.49
0.09
ND
ND
ND
ND
ND
ND
0.71
ND
0.04 U
0.07 U
ND
0.12
0.34
ND
ND
ND
0.16
ND
ND
ND
CAMS13 9579
6/20/97
7/24/97
K/LGW014
ppbv
1.88
0.52
0.71
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.09
0.39
0.06
ND
ND
ND
ND
ND
ND
0.78
ND
0.04 U
0.03 U
ND
0.14
0.38
ND
ND
ND
0.18
ND
ND
ND
CAMS13 9655
6/23/97
7/24/97
K/LGW011
ppbv
1.86
0.80
0.61
ND
ND
ND
ND
0.12
ND
ND
ND
ND
ND
ND
0.08
0.47
0.07
ND
ND
ND
ND
ND
ND
0.86
ND
0.03 U
0.02 U
ND
0.14
0.44
ND
ND
ND
0.19
ND
ND
ND
U = Less than the detection limit
# = Sample Voided in field
4 of 6
                                                                  6cam13jds
-------
    1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                         TOXICS OPTION REPORT
SAMPLE SITE*
SAMPLE DATE
ANALYSIS DATE
FJLE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - D1CHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - D1CHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 • DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o-XYLENE
m . DICHLOROBENZENE
p -DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS13 9651
6/24/97
7/23/97
K/LGW007
ppbv
1.32
0.46
0.61
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.09
0.34
0.08
ND
ND
ND
ND
ND
ND
0.71
ND
0.04 U
ND
ND
0.12
0.36
ND
ND
ND
0.17
ND
ND
ND
CAMS139683
6/25/97
6/23/97
K/LGW006
ppbv
5.24
1.99
0.51
ND
0.24
ND
ND
0.14
ND
ND
ND
ND
ND
ND
0.10
1.35
0.08
ND
ND
ND
ND
ND
ND
2.68
ND
0.13 U
0.06 U
ND
0.48
1.42
ND
0.09 U
ND
0.72
ND
0.07 U
ND
CAMS13 9682
6/26/97
7/24/97
K/LGX005
ppbv
2.43
0.67
0.56
ND
ND
ND
ND
0.04 U
ND
ND
ND
ND
ND
ND
0.08
0.50
0.07
ND
ND
ND
ND
ND
ND
1.01
ND
0.05 U
0.03 U
ND
0.15
0.43
ND
ND
ND
0.23
ND
ND
ND
CAMS13 9693
6/27/97
7/24/97
K/LGX007
ppbv
2.29
0.82
0.62
ND
0.02 U
ND
ND
0.05 U
ND
ND
ND
ND
ND
ND
0.07
0.62
0.06
ND
ND
ND
ND
ND
ND
1.08
ND
0.05 U
0.02 U
ND
0.19
0.58
ND
ND
ND
0.26
ND
ND
ND
U = Less than the detection limit.
# = Sample Voided in field
5of6
                                                                   6c»m13xls
-------
     1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                               TOXICS OPTION REPORT
                     SAMPLE SITE #
                     SAMPLE DATE
                     ANALYSIS DATE
                     FILE NAME
                    UNITS
                    ACETYLENE
                    PROPYLENE
                    CHLOROMETHANE
                    VINYL CHLORIDE
                    1,3-BUTADIENE
                    BROMOMETHANE
                    CHLOROETHANE
                    METHYLENE CHLORIDE
                    trans -1,2 - DICHLOROETHYLENE
                    1,1-DICHLOROETHANE
                    CHLOROPRENE
                    BROMOCHLOROMETHANE
                    CHLOROFORM
                    1,2 - DICHLOROETHANE
                    1,1,1 • TRICHLOROETHANE
                    BENZENE
                    CARBON TETRACHLORIDE
                     ,2 - DICHLOROPROPANE
                    BROMODICHLOROMETHANE
                    TRICHLOROETHYLENE
                    cis -1,3 - DICHLOROPROPENE
                    trans -1,3 - DICHLOROPROPENE
                     ,1,2 -TRICHLOROETHANE
                    TOLUENE
                    DIBROMOCHLOROMETHANE
                    N-OCTANE
                    TETRACHLOROETHYLENE
                    CHLOROBENZENE
                    ETHYLBENZENE
                    Ti.p-XYLENE
                    BROMOFORM
                    STYRENE
                     ,1,2,2 - TETRACHLOROETHANE
                    .-XYLENE
                    i - DICHLOROBENZENE
                    > - DICHLOROBENZENE
                     . DICHLOROBENZENE
            CAMS139701
              6/30/97
              7/25/97
             K/LGX012
               ppbv
               2.19
               0.72
               0.66
               ND
               ND
               ND
               ND
               0.09
               ND
               ND
               ND
               ND
               ND
               ND
               0.09
               0.46
               0.08
               ND
               ND
               0.13
               ND
               ND
               ND
               0.95
               ND
               0.07
               0.02
               ND
               0.14
               0.41
               ND
               ND
               ND
               0.21
               ND
               ND
               ND
U = Less than the detection limit.
# = Sample Voided in field
6 of 6
                                                                                 6cam13.xls
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                          TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1-DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
0-XYLENE
m - DICHLOROBENZENE
p • DICHLOROBENZENE
o • DICHLOROBENZENE
CAMS13 9702
7/1/97
7/25/97
L7GX014
ppbv
0.93
0.28
0.66
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.07
0.26
0.07
ND
ND
ND
ND
ND
ND
0.44
ND
ND
0.04 U
ND
0.07 U
0.20 U
ND
ND
ND
0.10
ND
ND
ND
CAMS13 9821
7/2/97
7/30/97
L7G$006
ppbv
1.69
0.40
0.62
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.06
0.28
0.06
ND
ND
ND
ND
ND
ND
0.47
ND
ND
0.03 U
ND
0.08 U
0.23
ND
ND
ND
0.11
ND
ND
ND
CAMS13
7/3/97
ppbv
*
*
*
*
*
*
*
*
*
*
*
*
#
*
it
*
*
ft
*
*
*
*
*
*
*
*
*
*
tt
*
*
*
*
*
*
*
*
U = Less than the detection limit.
* = Sample voided due to field sample pump failure
+ = Sample not collected in field
1 of 11
                                                                      7cam13 xls
-------
    1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                           TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2-DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 -TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o- XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS13
7/4/97
ppbv
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
•*•
+
+
+
+
+
+
+
+
+
+
+
CAMS13
7/7/97
ppbv
+
•f
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
CAMS13
7/8197
ppbv
•f
+
+
+
+
+
+
+
+
+
+
+
+
+
4
+
+
•f
•»•
+
+
+
+
+
•f
+
+
+
+
+
+
+
+
+
+
+
+
U = Less than the detection limit.
* = Sample voided due to field sample pump failure
+ = Sample not collected in field
2 of 11
                                   7cam13.xls
-------
1997 SNMOC (SPECIATED NON-lvic i I-IMNC
                          TOXICS OPTION REPORT
                                                                           - UKBMIN
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 • DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 -DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m.p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o-XYLENE
m • DICHLOROBENZENE
p - DICHLOROBENZENE
o • DICHLOROBENZENE
CAMS13 9908
7/9/97
8/1/97
L7G%015
ppbv
2.00
0.67
0.57
ND
ND
ND
ND
0.21
ND
ND
ND
ND
ND
ND
0.08
0.51
0.07
ND
ND
ND
ND
ND
ND
1.26
ND
0.04 U
0.03 U
ND
0.17
0.53
ND
ND
ND
0.24
ND
ND
ND
CAMS13 9953
7/10/97
8/31/97
L7H#036
ppbv
1.08
0.50
0.40
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.07
0.37
0.06
ND
ND
ND
ND
ND
ND
0.73
ND
0.05 U
0.02 U
ND
0.13
0.36
ND
ND
ND
0.22
ND
ND
ND
CAMS13 9979D1
7/11/97
7/28/97
L7G1012
ppbv
1.41
0.44
0.55
ND
ND
ND
ND
0.01 U
ND
ND
ND
ND
ND
ND
0.08
0.35
0.06
ND
ND
ND
ND
ND
ND
0.82
ND
0.03 U
0.03 U
ND
0.12
0.37
ND
ND
ND
0.17
ND
ND
ND
U = Less than the detection limit.
* = Sample voided due to field sample pump failure
+ = Sample not collected in field
                                      3of11
                                                                              7cam13.jiis
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                        TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 • DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 • DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis • 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o - XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o • DICHLOROBENZENE
CAMS139979R1
7/11/97
7/31/97
L7g$011
ppbv
1.62
0.55
0.65
ND
ND
ND
ND
0.01 U
ND
ND
ND
ND
ND
ND
0.07
0.31
0.06
ND
ND
ND
ND
ND
ND
ND
0.81
0.04 U
0.03 U
ND
0.13
0.39
ND
ND
ND
0.16
ND
ND
ND
CAMS13 9979D2
7/1 1/97
7/28/97
L7GI013
ppbv
1.52
0.54
0.57
ND
ND
ND
ND
0.04 U
ND
ND
ND
ND
ND
ND
0.09
0.36
0.07
ND
ND
ND
ND
ND
ND
0.90
ND
0.05 U
0.03 U
ND
0.12
0.37
ND
0.26
ND
0.18
ND
ND
ND
CAMS13 9979R2
7/11/97
7/31/97
L7G$012
ppbv
1.58
0.48
0.65
ND
ND
ND
ND
0.04 U
ND
ND
ND
ND
ND
ND
0.07
0.37
0.07
ND
ND
ND
ND
ND
ND
0.80
ND
0.05 U
0.02 U
ND
0.12
0.35
ND
0.23
ND
0.17
ND
ND
ND
U = Less than the detection limit.
         rip -tnf-'H- nr'~ niimn
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                       TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1-DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2-DlCHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 . TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 -TETRACHLOROETHANE
0- XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS13 9976
7/14/97
8/8/97
L7HG013
ppbv
1.89
0.70
0.48
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.08
0.52
0.07
ND
ND
ND
ND
ND
ND
1.08
ND
0.03 U
ND
ND
0.18
0.53
ND
ND
ND
0.24
ND
ND
ND
CAMS13 10030
7/15/97
8/8/97
L7HG017
ppbv
2.24
1.02
0.50
ND
0.05 U
ND
ND
0.03 U
ND
ND
ND
ND
ND
ND
0.08
0.71
0.07
ND
ND
ND
ND
ND
ND
1.76
ND
0.06 U
ND
ND
0.29
0.83
ND
ND
ND
0.40
ND
ND
ND
CAMS13 10045
7/16/97
8/7/97
L7HG007
ppbv
6.68
2.39
0.61
ND
0.27
ND
ND
0.27
ND
ND
ND
ND
ND
ND
0.11
1.47
0.10
ND
ND
ND
ND
ND
ND
3.66
ND
0.17 U
0.16 U
ND
0.57
1.74
ND
0.11
ND
0.82
ND
ND
ND
U = Less than the detection limit.
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                         TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 -TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
0-XYLENE
m - DICHLOROBENZENE
p-DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS13 10051D1
7/17/97
7/29/97
L7GI021
ppbv
3.86
1.40
0.60
ND
0.07 U
ND
ND
0.16
ND
ND
ND
ND
ND
ND
0.08
1.02
0.07
ND
ND
ND
ND
ND
ND
1.77
ND
0.11 U
0.10 U
ND
0.35
0.95
ND
ND
ND
0.50
ND
ND
ND
CAMS1310051R1
7/17/97
8/30/97#
L7H#020
ppbv
3.10
0.99
0.42
ND
0.15
ND
ND
0.19
ND
ND
ND
ND
ND
ND
0.08
1.08
0.07
ND
ND
ND
ND
ND
ND
1.60
ND
0.10 ' U
0.10 U
ND
0.48
1.37
ND
0.14
ND
0.75
ND
0.08 U
ND
CAMS13 10052D2
7/17/97
7/29/97
L7GI020
ppbv
3.86
1.47
0.56
ND
0.07 U
ND
ND
0.13
ND
ND
ND
ND
ND
ND
0.09
1.00
0.07
ND
ND
ND
ND
ND
ND
1.83
ND
0.10 U
0.12 U
ND
0.35
0.97
ND
ND
ND
0.50
ND
ND
ND
U = Less than the detection limit.
* = Sample voided due to field sample pump failure
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                         TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 -DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 -DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m.p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o-XYLENE
m • DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS13 10052R2
7/17/97
8/30/97#
L7H#019
ppbv
3.77
1.17
0.40
ND
0.19
ND
ND
0.27
ND
ND
ND
ND
ND
ND
0.09
1.16
0.07
ND
ND
ND
ND
ND
ND
1.55
ND
0.01 U
0.09 U
ND
0.48
1.34
ND
0.15
ND
0.74
ND
0.08 U
ND
CAMS13 10061
7/18/97
8/7/97
L7HG006
ppbv
4.22
1.47
0.50
ND
0.15
ND
ND
0.22
ND
ND
ND
ND
ND
ND
0.10
1.10
0.07
ND
ND
0.04
ND
ND
ND
2.72
ND
0.12 U
0.08 U
ND
0.45
1.30
ND
0.09
ND
0.57
ND
ND
ND
CAMS13 10182
7/21/97
8/7/97
L7GH005
ppbv
2.66
1.07
0.57
ND
0.08 U
ND
ND
0.04 U
ND
ND
ND
ND
ND
ND
0.07
0.77
8.00
ND
ND
ND
ND
ND
ND
1.71
ND
0.06 U
0.10 U
ND
0.30
0.85
ND
ND
ND
0.42
ND
ND
ND
U = Less than the detection limit.
* = Sample voided due to field sample pump failure
-------
    1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                           TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1-DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1-TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2-DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 • TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 -TETRACHLOROETHANE
o- XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS13
7/22/97
8/8/97
L7HH010
ppbv
1.78
0.61
0.64
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.07
0.15
0.07
ND
ND
ND
ND
ND
ND
1.03
ND
0.04 U
ND
ND
0.16
0.47
ND
ND
ND
0.21
ND
ND
ND
CAMS13 10248
7/23/97
8/9/97
L7HH016
ppbv
2.57
0.98
0.58
ND
ND
ND
ND
0.11
ND
NO
ND
ND
ND
ND
0.08
0.66
0.07
ND
ND
ND
ND
ND
ND
1.50
ND
0.04 U
0.06 U
ND
0.26
0.71
ND
ND
ND
0.33
ND
ND
ND
CAMS13 10291
7/24/97
8/9/97
L7HH019
ppbv
6.44
2.52
0.57
ND
0.36
ND
ND
0.08 U
ND
ND
ND
ND
ND
ND
0.07
1.60
0.06
ND
ND
ND
ND
ND
ND
3.55
ND
0.14
ND
ND
0.64
1.78
ND
0.14
ND
0.86
ND
0.04 U
ND
U = Less than the detection limit.
* = Sample voided due to field sample pump failure
+ = Sample not collected in field
8 of 11
                                   7caml3jd$
-------
    1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                          TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 • DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - OICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 -TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
0- XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS13 10303
7/25/97
8/9/97
L7HH014
ppbv
2.03
0.73
0.49
ND
ND
ND
ND
0.09
ND
ND
ND
ND
ND
ND
0.07
0.57
0.06
ND
ND
ND
ND
ND
ND
1.31
ND
0.03 U
ND
ND
0.19
0.52
ND
ND
ND
0.25
ND
ND
ND
CAMS13 10420
7/28/97
8/19/97
L7HS013
ppbv
1.21
0.76
0.46
ND
0.04 U
ND
ND
0.10
ND
ND
ND
ND
ND
ND
0.06
0.63
0.08
ND
ND
ND
ND
ND
ND
1.35
ND
0.06 U
ND
ND
0.24
0.75
ND
ND
ND
0.34
ND
ND
ND
CAMS1310388D1
7/29/97
8/20/97
L7HR018
ppbv
3.82
1.47
0.49
ND
0.15
ND
ND
0.35
ND
ND
ND
ND
ND
ND
0.11
1.36
0.09
ND
ND
ND
ND
ND
ND
3.96
ND
0.15 U
0.72
ND
0.56
1.70
ND
0.11
ND
0.82
ND
0.08 U
ND
U = Less than the detection limit.
* = Sample voided due to field sample pump failure
+ = Sample not collected in field
9 of 11
                                                                       7caml3 xis
-------
5NMUU (SKtUIA I tU NUN-Mtl HANt UKUANH-
                       TOXICS OPTION REPORT
                                                                                  - UK BAIN
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DJCHLOROETHYLENE
1,1 -DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 -DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRJCHLOROETHYLENE
cis - 1,3 • DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o- XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS13 10388R1
729/97
8/21/97
L7HS008
ppbv
3.91
1.49
0.48
ND
0.17
ND
ND
0.30
ND
ND
ND
ND
ND
ND
0.09
1.19
0.08
ND
ND
ND
ND
ND
ND
4.00
ND
0.13 U
0.78
ND
0.55
1.62
ND
0.09 U
ND
0.76
ND
ND
ND
CAMS13 10389D2
7/29/97
8/20/97
L7HR019
ppbv
2.22
1,61
0.47
ND
0.20
ND
ND
0.36
ND
ND
ND
ND
ND
ND
0.12
1.40
0.09
ND
ND
ND
ND
ND
ND
9.98
ND
0.15 U
0.77
ND
0.56
1.66
ND
0.13
ND
0.76
ND
0.06 U
ND
CAMS13 11389R2
7/29/97
8/21/97
L7HS009
ppbv
4.19
1.47
0.49
ND
0.17
ND
ND
0.35
ND
ND
ND
ND
ND
ND
0.09
1.24
0.07
ND
ND
ND
ND
ND
ND
3.94
ND
0.13 U
0.76
ND
0.53
1.70
ND
0.10
ND
0.80
ND
0.06 U
ND
U = Less than the detection limit.
* = Sample voided due to field sample pump failure
+ = Sample not collected in field
                                   10 of 11
                                                                               7eam13.x)s
-------
&u»
                                                            ounnruuiMua; - UKBAN
                               TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1 ,1 ,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - D1CHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 -TETRACHLOROETHANE
o- XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS13 10387
7/30/97
8/25/97
L7HY007
ppbv
1.85
0.40
55.00
ND
ND
ND
ND
0.48
ND
ND
ND
ND
ND
ND
0.10
0.41
0.08
ND
ND
ND
ND
ND
ND
0,87
ND
0.05 U
0.58
ND
0.16
0.43
ND
ND
ND
0.19
ND
ND
ND
CAMS13 10380
7/31/97
8/23/97
L7HV019
ppbv
1.23
0.65
0.47
ND
ND
ND
ND
0.65
ND
ND
ND
ND
ND
ND
0.10
0.90
0.08
ND
ND
ND
ND
ND
ND
2.51
ND
0.12 U
0.08 U
ND
0.32
0.82
ND
0.12
ND
0.38
ND
ND
ND
U = Less than the detection limit.
* = Sample voided due to field sample pump failure
+ = Sample not collected in field
             11 of 11
                                                                                    7 cam 13 xls
-------
                                  TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 -DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o - XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS13 10548
8/1/97
8/24/97
L7HW005
ppbv
1.97
0.76
0.42
ND
0.10
ND
ND
1.07
ND
ND
ND
ND
ND
ND
0.19
1.97
0.08
ND
ND
ND
ND
ND
ND
3.89
ND
0.17 U
5.28
ND
0.57
1.70
ND
0.16
ND
0.73
ND
ND
ND
CAMS13 1053901
8/4/97
8/26/97
L7HY013
ppbv
5.61
1.89
0.51
ND
0.27
ND
ND
0.64
ND
ND
ND
ND
ND
ND
0.12
1.65
0.07
ND
ND
ND
ND
ND
ND
3.79
ND
0.13 U
0.19 U
ND
0.60
1.66
ND
0.08
ND
0.86
ND
0.08 U
ND
CAMS 13 10539R1
8/4/97
8/26/97
L7HZ008
ppbv
5.57
1.99
0.45
ND
0.22
ND
ND
0.66
ND
ND
ND
ND
ND
ND
0.12
1.85
0.06
ND
ND
ND
ND
ND
ND
3.87
ND
0.18 U
0.19 U
ND
0.66
1.73
ND
0.12
ND
0.96
ND
0.11 U
ND
U = Less than the detection limit.
* = Sample voided due to field sample pump failure
+ = Sample not collected in field
10M1
                                            8cam13.xls
-------
                                  TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - D1CHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 -TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 -TETRACHLOROETHANE
o- XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS13 10540D2
8/4/97
8/26/97
L7HY014
ppbv
5.55
1,18
0.46
ND
0.21
ND
ND
0.61
ND
ND
ND
ND
ND
ND
0.12
1.64
0.08
ND
ND
ND
ND
ND
ND
3.83
ND
0.16 U
0.20 U
ND
0.62
1.66
ND
0.09 U
ND
0.84
ND
0.09 U
ND
CAMS13 10540R2
8/4/97
8/26/97
L7HZ009
ppbv
5.50
1.90
0.51
ND
0.22
ND
ND
0.66
ND
ND
ND
ND
ND
ND
0.13
1.67
0.07
ND
ND
ND
ND
ND
ND
3.76
ND
0.18 U
0.17 U
ND
0.65
1.76
ND
0.11
ND
0.94
ND
0.11 U
ND
CAMS1310547
8/5/97
9/26/97
L71Y016
ppbv
1.71
0.41
0.52
ND
ND
ND
ND
0.82
ND
ND
ND
ND
ND
ND
0.11
0.68
0.07
ND
ND
ND
ND
ND
ND
1.40
ND
0.13 U
0.06 U
ND
0.21
0.64
ND
0.04 U
ND
0.28
ND
ND
ND
U = Less than the detection limit.
* = Sample voided due to field sample pump failure
+ = Sample not collected in field
20M1
                                                                                          8cam13.xls
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                         TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DJCHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2-D1CHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TR1CHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m.p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 -TETRACHLOROETHANE
o - XYLENE
m - DICHLOROBENZENE
p - D1CHLOROBENZENE
o - DICHLOROBENZENE
CAMS13 10553
8/6/97
9/26/97
L7IZ006
ppbv
4.26
1.42
0.47
ND
0.26
ND
ND
1.23
ND
ND
ND
ND
ND
ND
0.12
1.41
0.08
ND
ND
0.24
ND
ND
ND
4.11
ND
0.19 U
0.93
ND
0.48
1.31
ND
0.13
ND
0.59
ND
0.02 U
ND
CAMS13 10534
8/7/97
8/30/97
L7H#025
ppbv
0.90
0.23
0.25
ND
ND
ND
ND
1.04
ND
ND
ND
ND
ND
ND
0.10
0,36
0.08
ND
ND
ND
ND
ND
ND
1.09
ND
0.09 U
4.64
ND
0.15
0.41
ND
0.05 U
ND
0,20
ND
ND
ND
CAMS13 10572
8/8/97
8/31/97
L7H#029
ppbv
0.54
0.11
0.19
ND
ND
ND
ND
1.65
ND
ND
ND
ND
ND
ND
0.01
0,21
0.06
ND
ND
ND
ND
ND
ND
0.50
ND
0.05 U
0.05 U
ND .
0.17
0.56
ND
0.06 U
ND
0.20
ND
ND
ND
U = Less than the detection limit.
* = Sample voided due to field sample pump failure
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                        TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 -DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 -DICHLOROETHANE
1,1,1 -TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis • 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 -TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m.p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o-XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS1310571
8/11/97
8/31/97
L7H#032
ppbv
0.98
0.42
0.38
ND
ND
ND
ND
0,74
ND
ND
ND
ND
ND
ND
0.08
0.49
0.08
ND
ND
ND
ND
ND
ND
1.03
ND
0.05 U
0.02 U
ND
0.20
0.56
ND
0.06 U
ND
0.27
ND
ND
ND
CAMS13 10664
8/12/97
9/2/97
L7JB010
ppbv
0.56
0.25
0.24
ND
ND
ND
ND
0.46
ND
ND
ND
ND
ND
ND
0.07
0.38
0.08
ND
ND
ND
ND
ND
ND
0.83
ND
0.06 U
0.04 U
ND
0.16
0.45
ND
0.04 U
ND
0.23
ND
ND
ND
CAMS13 10661
8/13/97
9/3/97
L7IB015
ppbv
1.55
0.60
0.44
ND
ND
ND
ND
0.82
ND
ND
ND
ND
ND
ND
0.09
2.00
0.07
ND
ND
ND
ND
ND
ND
5.23
ND
0.25
0.04 U
ND
0.98
2.71
ND
0.08 U
ND
1.36
ND
0.02 U
ND
U = Less than the detection limit.
* = p-mn|e voided duet" fi'H »
-------
    1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                           TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 -TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o - XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS1310677
8/14/97
9/3/97
L7IB017
ppbv
1.22
0.52
0.32
ND
ND
ND
ND
2.83
ND
ND
ND
ND
ND
ND
0.10
1.96
0.08
ND
ND
ND
ND
ND
ND
9.31
ND
0.28
0.05 U
ND
0.89
2.59
ND
0.11
ND
1.30
ND
ND
ND
CAMS13 10697D1
8/15/97
8/26/97
L7HY019
ppbv
0.83
0.14
0.44
ND
ND
ND
ND
0.16
ND
ND
ND
ND
ND
ND
0.07
0.71
0.07
ND
ND
ND
ND
ND
ND
1.81
ND
0.04 U
ND
ND
0.29
0.84
ND
ND
ND
0.40
ND
ND
ND
CAMS13 10697R1
8/1 5/97
8/29/97
L7HJ017
ppbv
0.41
0.14
0.58
ND
ND
ND
ND
0.18
ND
ND
ND
ND
ND
ND
0.07
0.80
0.05
ND
ND
ND
ND
ND
ND
1.69
ND
0.04 U
ND
ND
0.27
0.82
ND
ND
ND
0.39
ND
ND
ND
U = Less than the detection limit.
* = Sample voided due to field sample pump failure
+ = Sample not collected in field
5of11
                                   8cam13.xls
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                          TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TR1CHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 -TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
tn.p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o-XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS13 10698D2
8/15/97
8/26/97
L7HY020
ppbv
0.82
0.17
0.44
ND
ND
ND
ND
0.17
ND
ND
ND
ND
ND
ND
0.07
0.70
0.07
ND
ND
ND
ND
ND
ND
1.73
ND
0.06 U
ND
ND
0.30
0.84
ND
ND
ND
0.42
ND
ND
ND
CAMS13 10698R2
8/15/97
8/29/97
L7HI018
ppbv
0.38
0.16
0.62
ND
ND
ND
ND
0.18
ND
ND
ND
ND
ND
ND
0.06
0.76
0.07
ND
ND
ND
ND
ND
ND
1.65
ND
0.04 U
ND
ND
0.28
0.79
ND
ND
ND
0.37
ND
ND
ND
CAMS13 10694
8/18/97
9/3/97
L7IB024
ppbv
0.69
0.28
0.35
ND
ND
ND
ND
0.25
ND
ND
ND
ND
ND
ND
0.06
1.08
0.07
ND
ND
ND
ND
ND
ND
2.64
ND
0.10 U
0.03 U
ND
0.42
1.21
ND
0.05 U
ND
0.63
ND
ND
ND
U = Less than the detection limit.
* = Sample voided due to field sample pump failure
+ = Sample not collected in field
6 of 11
                                                                      8c3m13.xls
-------
    1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                           TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 -DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 -TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o - XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS13 10842
8/19/97
9/3/97
L7IC007
ppbv.
0.88
0.29
0.56
ND
ND
ND
ND
0.23
ND
ND
ND
ND
ND
ND
0.10
1.84
0.08
ND
ND
ND
ND
ND
ND
3.90
ND
0.17 U
ND
ND
0.67
2.00
ND
0.06 U
ND
1.01
ND
ND
ND
CAMS13 10846
8/20/97
9/3/97
L71C008
ppbv
1.16
0.49
0.28
ND
ND
ND
ND
0.13
ND
ND
ND
ND
ND
ND
0.08
1.52
0.08
ND
ND
ND
ND
ND
ND
3.18
ND
0.17 U
0.07 U
ND
0.53
1.66
ND
0.04 U
ND
0.84
ND
ND
ND
CAMS13 10852D1
8/21/97
9/9/97
L7II003
ppbv
1.80
0.69
0.44
ND
0.03 U
ND
ND
0.28
ND
ND
ND
ND
ND
ND
0.11
1.57
0.09
ND
ND
0.02 U
ND
ND
ND
3.52
ND
0.15 U
4.33
ND
0.55
1.59
ND
0.10
ND
0.83
ND
0.02 U
ND
U = Less than the detection limit.
* = Sample voided due to field sample pump failure
+ = Sample not collected in field
7 of 11
                                   8cam13jds
-------
    1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                           TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 • DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1 ,1 ,2,2 - TETRACHLOROETHANE
o-XYLENE
m - DICHLOROBENZENE
p • DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS13 10852R1
8/21/97
9/11/97
L7IK006
ppbv
2.10
0.73
0.52
ND
0.04 U
ND
ND
0.35
ND
ND
ND
ND
ND
ND
0.11
1.63
0.09
ND
ND
ND
ND
ND
ND
3.98
ND
0.17 U
4.28
ND
0.57
1.83
ND
0.10
ND
0.84
ND
0.02 U
ND
CAMS13 10853D2
8/21/97
9/9/97
L7H004
ppbv
1.19
0.56
0.47
ND
0.14
ND
ND
0.28
ND
ND
ND
ND
ND
ND
0.12
1.27
0.09
ND
ND
ND
ND
ND
ND
2.81
ND
0.11 U
2.91
ND
0.39
1.22
ND
0.42
ND
0.59
ND
0.02 U
ND
CAMS13 10853R2
8/21/97
9/10/97
L7IJ008
ppbv
1.45
0.64
0.48
ND
0.13
ND
ND
0.30
ND
ND
ND
ND
ND
ND
0.09
1.20
0.08
ND
ND
ND
ND
ND
ND
2.81
ND
0.12 U
2.93
ND
0.42
1.31
ND
0.48
ND
0.60
ND
ND
ND
U = Less than the detection limit.
* = Sample voided due to field sample pump failure
+ = Sample not collected in field
8 of 11
                                                                       8eaml3.xls
-------
    1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                           TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 -DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o - XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
0 - DICHLOROBENZENE
CAMS13 10875
8/22/97
9/4/97
L7IC011
ppbv
2.42
0.89
0.33
ND
0.08 U
ND
ND
0.25
ND
ND
ND
ND
ND
ND
0.11
2.23
0.11
ND
ND
ND
ND
ND
ND
4.29
ND
0.18 U
0.05 U
ND
0.67
2.05
ND
0.09 U
ND
1.06
ND
ND
ND
CAMS13 10905
8/25/97
9/4/97
L7IC016
ppbv
4.33
1.67
0.23
ND
0.23
ND
ND
1.97
ND
ND
ND
ND
ND
ND
0.18
7.82
0.08
ND
ND
ND
ND
ND
ND
16.74
ND
0.85
0.05 U
ND
2.79
8.52
ND
0.18
ND
4.15
ND
0.07 U
ND
CAMS13 10966
8/26/97
9/4/97
L7IC020
ppbv
3.09
1.35
0.35
ND
0.16
ND
ND
1.50
ND
ND
ND
ND
ND
ND
0.13
4.55
0.07
ND
ND
ND
ND
ND
ND
11.03
ND
0.54
0.04 U
ND
1.78
5.78
ND
0.14
ND
2.79
ND
0.03 U
ND
U = Less than the detection limit.
* = Sample voided due to field sample pump failure
+ = Sample not collected in field
9 of 11
                                                                       8cam13.Jds
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                          TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - D1CHLOROPROPANE
BROMODICHLOROMETHANE
TR1CHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 • DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o - XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS13 10976D1
8/27/97
9/10/97
L7IJ006
ppbv
2.41
0.83
0.52
ND
0.07 U
ND
ND
0.75
ND
ND
ND
ND
ND
ND
0.12
3.18
0.08
ND
ND
ND
ND
ND
ND
6.87
ND
0.35
0.02 U
ND
1.10
3.68
ND
0.09 U
ND
1.60
ND
0.02 U
ND
CAMS13 10976R1
8/27/97
9/16/97
L70O19
ppbv
2.89
0.92
0.50
ND
0.09 U
ND
ND
0.78
ND
ND
ND
ND
ND
ND
0.10
3.20
0.08
ND
ND
ND
ND
ND
ND
7.11
ND
0.36
ND
ND
0.98
3.19
ND
0.08 U
ND
1.41
ND
0.02 U
ND
CAMS13 10977D2
8/27/97
9/10/98
L7U007
ppbv
2.56
0.98
0.56
ND
0.09 U
ND
ND
0.84
ND
ND
ND
ND
ND
ND
0.09
3.05
0.09
ND
ND
ND
ND
ND
ND
6.69
ND
0.34
0.02 U
ND
1.07
3.55
ND
0.09 U
ND
1.50
ND
0.02 U
ND
U = Less than the detection limit.
* = Sample voided due to field sample pump failure
+ = Sample not collected in field
10 of 11
                                                                       8cam13.xls
-------
    1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                           TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 -TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 -TETRACHLOROETHANE
o- XYLENE
m - DICHLOROBENZENE
p • DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS13 10977R2
8/27/97
9/16/97
L7I0020
ppbv
2.88
0.92
0.57
ND
0.07 U
ND
ND
0.83
ND
ND
ND
ND
ND
ND
0.12
3.33
0.08
ND
ND
ND
ND
ND
ND
7.03
ND
0.34
ND
ND
1.00
3.38
ND
0.08 U
ND
1.53
ND
0.02 U
ND
CAMS13 11016
8/28/97
9/4/97
L7ID013
ppbv
2.09
0.78
0.28
ND
0.10
ND
ND
1.24
ND
ND
ND
ND
ND
ND
0.13
4.39
0.08
ND
ND
ND
ND
ND
ND
9.33
ND
0.47
0.09 U
ND
1.49
4.57
ND
0.09 U
ND
2.23
ND
0.03 U
ND
CAMS1311045
8/29/97
9/5/97
L7ID013
ppbv
2.27
1.00
0.23
ND
0.10
ND
ND
1.23
ND
ND
ND
ND
ND
ND
0.12
4.39
0.07
ND
ND
ND
ND
ND
ND
9.87
ND
0.48
0.02 U
ND
1.57
4.84
ND
0.09 U
ND
2.41
ND
0.03 U
ND
U = Less than the detection limit.
* = Sample voided due to field sample pump failure
+ = Sample not collected in field
11 of 11
                                                                       8cam13.xls
-------
 1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN TOXICS
                             OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 -DICHLOROETHANE
1,1,1 -TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o- XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS5 11058
9/1/97
ppbv
i
!
!
!
i
1
1
!
i
!
j
!
!
j
j
!
!
!
;
!
l
!
!
!
i
1
i
!
!
!
l
1
j
!
j
!
1
CAMS5 11121
9/3/97
9/16/97
L7IP008
ppbv
2.39
0.92
0.59
ND
0.03 U
ND
ND
0.20
ND
ND
ND
ND
0.06
ND
0.19
0.86
0.07
ND
ND
0.06
ND
ND
ND
10.77
ND
0.97
0.13 U
ND
0.43
1.20
ND
0.06 U
ND
0.51
ND
0.03 U
ND
CAMS5 11127
9/4/97
9/16/97
L7IP006
ppbv
0.99
0.34
0.43
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.07
0.42
0.07
ND
ND
ND
ND
ND
ND
0.97
ND
0.06 U
0.03 U
ND
0.18
0.51
ND
0.03 U
ND
0.23
ND
ND
ND
U = Less than the detection limit.
* = Vacuum Criteria Exceeded
1 of 10
                                                                     9cams5.xls
-------
  1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN TOXICS
                              OPTION REPORT
SAMPLE SITE*
SAMPLE DATE
ANALYSIS DATE
FJLE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VJNYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1-DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1 ,1 ,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o - XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
0 - DICHLOROBENZENE
CAMS511197
9/5/97
9/17/97
L7IP016
ppbv
1.16
0.51
0.45
ND
ND
ND
ND
0.05 U
ND
ND
ND
ND
ND
ND
0.08
0.55
0.07
ND
ND
ND
ND
ND
ND
1.23
ND
0.09 U
0.02 U
ND
0.20
0.62
ND
0.03 U
ND
0.28
ND
0.01 U
ND
CAMS511196
9/8/97
9/17/97
L7IP020
ppbv
1.36
0.39
0.53
ND
ND
ND
ND
0.05 U
ND
ND
ND
NO
ND
ND
0.08
0.63
0.07
ND
ND
ND
ND
ND
ND
1.60
ND
0.11 U
0.02 U
ND
0.31
0.93
ND
0.03 U
ND
0.38
ND
ND
ND
CAMS5 11212D1
9/9/97
9/18/97
L7IQ010
ppbv
2.02
0.61
0.50
ND
ND
ND
ND
0.07 U
ND
ND
ND
ND
ND
ND
0.10
0.60
0.08
ND
ND
ND
ND
ND
ND
1.63
ND
0.09 U
0.06 U
ND
0.23
0.66
ND
0.04 U
ND
0.31
ND
ND
ND
U = Less than the detection limit.
* = Vacuum Criteria Exceeded
2 of 10
-------
 1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN TOXICS
                              OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1 ,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
0 - XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS511212R1
9/9/97
9/20/97
L7IR010
ppbv
2.24
0.69
0.52
ND
ND
ND
ND
0.10
ND
ND
ND
ND
ND
ND
0.10
0.64
0.07
ND
ND
ND
ND
ND
ND
1.68
ND
0.11 U
0.07 U
ND
0.24
0.70
ND
0.05 U
ND
0.31
ND
0.01 U
ND
CAMS511213D2
9/9/97
9/18/97
L7IQ011
ppbv
2.00
0.66
0.51
ND
ND
ND
ND
0.08 U
ND
ND
ND
ND
ND
ND
0.09
0.61
0.08
ND
ND
ND
ND
ND
ND
1,71
ND
0.13 U
0.07 U
ND
0.24
0.74
ND
0.04 U
ND
0.33
ND
ND
ND
CAMS511213R2
9/9/97
9/20/97
L7IR011
ppbv
2.33
0.77
0.57
ND
ND
ND
ND
0.09
ND
ND
ND
ND
ND
ND
0.10
0.65
0.06
ND
ND
ND
ND
ND
ND
1.75
ND
0.12 U
0.07 U
ND
0.27
0.77
ND
0.05 U
ND
0.35
ND
ND
ND
U = Less than the detection limit
* = Vacuum Criteria Exceeded
3 of 10
                                                                      ScamsSxIs
-------
  1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN TOXICS
                             OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1-TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 -TETRACHLOROETHANE
o - XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS511289
9/10/97
9/17/97
L7IQ005
ppbv
1.26
0.64
0.52
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.12
0.65
0.08
ND
ND
ND
ND
ND
ND
2.01
ND
0.12 U
0.08 U
ND
0.31
0.84
ND
0.08 U
ND
0.37
ND
0.17 U
ND
CAMS5 11283
9/11/97
9/20/97
L7IR020
ppbv
2.32
0.73
0.43
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.08
0.65
0.05
ND
ND
ND
ND
ND
ND
1.28
ND
0.05 U
0.07 U
ND
0.23
0.65
ND
0.05 U
ND
0.29
ND
ND
ND
CAMS5 11303
9/12/97
9/23/97
L7IZ011
ppbv
1.63
0.55
0.51
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.04
ND
0.17
0.68
0.08
ND
ND
ND
ND
ND
ND
1.28
ND
0.07 U
ND
ND
0.21
0.64
ND
0.05 U
ND
0.29
ND
ND
ND
U = Less than the detection limit.
* = Vacuum Criteria Exceeded
4 of 10
                                                                    tamsS.xtt
-------
  1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN TOXICS
                              OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 -DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N -OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
0- XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS5 11292
9/15/97
ppbv
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
»
*
*
*
*
*
•
*
*
*
*
*
*
*
*
*
»
•
*
*
CAMS511297D1
9/15/97
9/18/97
L7IQ014
ppbv
1.99
0.43
0.56
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.07
0.58
0.08
ND
ND
ND
ND
ND
ND
1.37
ND
0.08 U
ND
ND
0.26
0.71
ND
0.03 U
ND
0.32
ND
ND
ND
CAMS511297R1
9/15/97
9/20/97
L7IR014
ppbv
2.17
0.47
0.58
ND
ND
ND
ND
0.01 U
ND
ND
ND
ND
ND
ND
0.09
0.61
0.05
ND
ND
ND
ND
ND
ND
1.30
ND
0.06 U
ND
ND
0.25
0.67
ND
0.03 U
ND
0.30
ND
ND
ND
U = Less than the detection limit.
* = Vacuum Criteria Exceeded
                                   5 of 10
                                                                     9cams5xls
-------
  1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN TOXICS
                             OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 -DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis- 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N -OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o - XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS5 11298D2
9/15/97
9/18/97
L7IQ015
ppbv
2.13
0.51
0.60
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.09
0.58
0.07
ND
ND
ND
ND
ND
ND
1.29
ND
0.08 U
ND
ND
0.25
0.78
ND
0.03 U
ND
0.32
ND
ND
ND
CAMS511298R2
9/15/97
9/20/97
L7IR015
ppbv
1.99
0.56
0.51
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.07
0.58
0.05
ND
ND
ND
ND
ND
ND
1.21
ND
0.09 U
ND
ND
0.24
0.73
ND
0.04 U
ND
0.32
ND
ND
ND
CAMS5 11323
9/16/97
9/24/97
L7JX013
ppbv
1.20
0.40
0.64
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.07
0.35
0.06
ND
ND
ND
ND
ND
ND
0.90
ND
0.06 U
0.05 U
ND
0.15
0.45
ND
0.03 U
ND
0.20
ND
ND
ND
U = Less than the detection limit.
* = Vacuum Criteria Exceeded
6 Of 10
                                                                    ScamsSxts
-------
  1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN TOXICS
                              OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 • TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYL£NE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
0-XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS5 11349
9/17/97
9/26/97
I7IY018
ppbv
1.68
0.37
0.51
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.05
0.30
0.07
ND
ND
ND
ND
ND
ND
0.79
ND
0.05 U
0.02 U
ND
0.13
0.40
ND
0.18
ND
ND
ND
ND
ND
CAMS511359
9/18/97
9/26/97
L7IY019
ppbv
1.32
0.41
0.47
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.07
0.39
0.06
ND
ND
ND
ND
ND
ND
0.98
ND
0.07 U
0.06 U
ND
0.17
0.48
ND
0.09 U
ND
0.22
ND
ND
ND
CAMS5 11371
9/19/97
9/27/97
L7IZ013
ppbv
1.39
0.42
0.43
ND
ND
ND
ND
0.01 U
ND
ND
ND
ND
ND
ND
0.11
0.41
0.07
ND
ND
ND
ND
ND
ND
0.88
ND
0.05 U
0.68
ND
0.15
0.40
ND
0.19
ND
0.18
ND
ND
ND
U = Less than the detection limit.
* = Vacuum Criteria Exceeded
                                   7 of 10
                                                                     9cams5.xls
-------
  1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN TOXICS
                              OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 -DICHLOROETHANE
1,1,1 -TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 -TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
in.p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o-XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
CAMS511367
9/22/97
9/27/97
L7IZ014
ppbv
1.10
0.44
0.49
ND
ND
ND
ND
0,02 U
ND
ND
ND
ND
ND
ND
0.08
0.62
0.06
ND
ND
ND
ND
ND
ND
1.51
ND
0.13 U
0.03 U
ND
0.25
0.78
ND
0.03 U
ND
0.35
ND
ND
ND
CAMS5 11403
9/23/97
9/26/97
L7IZ010
ppbv
1.45
0.51
0.54
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.09
0.48
0.06
ND
ND
ND
ND
ND
ND
1.25
ND
0.06 U
0.02 U
NO
0.21
0.65
ND
0.04 U
ND
0.29
ND
ND
ND
CAMS5 11427
9/24/97
9/30/97
L7I$011
ppbv
1.42
0.41
0.39
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.09
0.45
0.07
ND
ND
ND
ND
ND
ND
1.06
ND
0.05 U
0.17 U
ND
0.18
0.57
ND
ND
ND
0.25
ND
ND
ND
U = Less than the detection limit.
* = Vacuum Criteria Exceeded
a of 10
                                                                     9oms5.xls
-------
  1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN TOXICS
                              OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1 ,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 -TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1.2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
0 - XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
0 - DICHLOROBENZENE
CAMS5 11426
9/25/97
9/30/97
L7I$013
ppbv
1.11
0.29
0.40
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.08
0.37
0.07
ND
ND
ND
ND
ND
ND
0.87
ND
0.04 U
0.06 U
ND
0.16
0.47
ND
ND
ND
0.21
ND
ND
ND
CAMS5 11449
9/26/97
10/3/97
L7JC013
ppbv
2.69
1.08
0.43
ND
0.05 U
ND
ND
0.08 U
ND
ND
ND
ND
0.11
ND
0.14
1.08
0.08
ND
ND
ND
ND
ND
ND
2.99
ND
0.14 U
0.31
ND
0.34
1.10
ND
0.06 U
ND
0.47
ND
ND
ND
CAMS5 11457
9/29/97
10/4/97
L7JC019
ppbv
1.56
0.60
0.31
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.08
0.62
0.06
ND
ND
ND
ND
ND
ND
1.58
ND
0.06 U
0.08 U
ND
0.27
0.84
ND
0.04 U
ND
0.38
ND
ND
ND
U = Less than the detection limit.
* = Vacuum Criteria Exceeded
                                   9 Of 10
                                                                     9cams5.xls
-------
  1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN TOXICS
                                    OPTION REPORT
                    SAMPLE SITE #
                    SAMPLE DATE
                    ANALYSrS DATE
                    FILE NAME
                    UNITS
                    ACETYLENE
                    PROPYLENE
                    CHLOROMETHANE
                    VINYL CHLORIDE
                    1,3-BUTADIENE
                    BROMOMETHANE
                    CHLOROETHANE
                    METHYLENE CHLORIDE
                    trans -1,2 - DICHLOROETHYLENE
                    1,1 - D1CHLOROETHANE
                    CHLOROPRENE
                    BROMOCHLOROMETHANE
                     HLOROFORM
                    1,2-D1CHLOROETHANE
                    1,1,1 - TRICHLOROETHANE
                    BENZENE
                    CARBON TETRACHLORIDE
                    1,2 - D1CHLOROPROPANE
                    BROMODICHLOROMETHANE
                     RICHLOROETHYLENE
                    cis -1,3 - DICHLOROPROPENE
                    trans -1,3 - DICHLOROPROPENE
                     ,1,2 - TRICHLOROETHANE
                     •OLUENE
                    DIBROMOCHLOROMETHANE
                    N-OCTANE
                     ETRACHLOROETHYLENE
                    CHLOROBENZENE
                    ETHYLBENZENE
                    m.p-XYLENE
                    BROMOFORM
                    STYRENE
                     ,1,2,2 - TETRACHLOROETHANE
                    i-XYLENE
                    n - DICHLOROBENZENE
                    > • DICHLOROBENZENE
                    > - DICHLOROBENZENE
CAMS5 11445
   9/30/97
   10/4/97
  L7JC017
   ppbv
   1.87
   0.51
   0.45
   ND
   ND
   ND
   ND
   0.04
   ND
   ND
   ND
   ND
   0.09
   ND
   0.12
   0.89
   0.09
   ND
   ND
   ND
   ND
   ND
   ND
   1.70
   ND
   0.08
   0.08
   ND
   0.25
   0,76
   ND
   0.07
   ND
   0.35
   ND
   0.05
   ND
U = Less than the detection limit
-------
  1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN TOXICS
                              OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1-DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1 ,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m.p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o - XYLENE
m - DICHLOROBENZENE
p - DtCHLOROBENZENE
0 • DICHLOROBENZENE
JUMX 10169
7/15/97
8/7/97
L7HG011
ppbv
3.37
1.25
0.53
ND
0.06 U
ND
ND
0.50
ND
ND
ND
ND
ND
ND
0.08
1.11
0.07
ND
ND
0.05
ND
ND
ND
2.71
ND
0.07 U
ND
ND
0.70
2.31
ND
0.08 U
ND
0.90
ND
0.13
ND
JUMX 10170
7/16/97
8/8/97
L7HG020
ppbv
2.92
0.83
0.53
ND
ND
ND
ND
0.13
ND
ND
ND
ND
ND
ND
0.63
0.65
0.07
ND
ND
ND
ND
ND
ND
1.89
ND
0.04 U
ND
ND
0.25
0.74
ND
0.07 U
ND
0.32
ND
ND
ND
JUMX 101 65D1
7/17/97
7/29/97
L7GI018
ppbv
5.22
1.52
0.57
ND
0.07 U
ND
ND
0.15
ND
ND
ND
ND
ND
ND
0.07
1.36
0.07
ND
ND
0.07
ND
ND
ND
2.76
ND
0.11 U
0.01 U
ND
0.47
1.43
ND
0.13
ND
0.61
ND
0.08 U
ND
U = Less than the detection limit.
* = Sample voided due to field sample pump failure
-------
  1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN TOXICS
                                 OPTION REPORT
SAMPLE SITE*
SAMPLE DATE
ANALYSIS DATE
FILE NAME
JUMX 10165R1
7717/97
7/31/97
L7GS018
UNITS i ppbv
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTAOIENE
BROMOMETHANE
CHLOROETHANE
5.51
1.45
0.59
ND
0.06 U
ND
ND
METHYLENE CHLORIDE 0.15
I
trans - 1,2 - DICHLOROETHYLENE
1,1-DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2- DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 -TETRACHLOROETHANE
o-XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
ND
ND
ND
ND
ND
ND
0.07
1.21
0.05
ND
ND
0.08
ND
ND
ND
2.73
ND
0.12 U
ND
ND
0.46
1.31
ND
0.11
ND
0.63
ND
ND
ND
JUMX 101 74D2
7/17/97
7/29/97
L7GI019
ppbv
4.41
1.40
0.60
ND
0.10
ND
ND
0.17

ND
ND
ND
ND
ND
ND
0.07
1.28
0.07
ND
ND
0.09
ND
ND
ND
2.78
ND
0.13 U
ND
ND
0.45
1.32
ND
0.10
ND
0.59
ND
0.08 U
ND
JUMX 10174R2
7/17/97
7/31/97
L7G$018
ppbv
4.48
1.06
0.50
ND
ND
ND
ND
0.15

ND
ND
ND
ND
ND
ND
0.07
0.89
0.05
ND
ND
0.04
ND
ND
ND
2.25
ND
0.04 U
ND
ND
0.31
0.88
ND
ND
ND
0.39
ND
ND
ND
U = Less than the detection limit.
* = Sample voided due to field sample pump failure
+ = Sample not collected in field
# = Sample Voided in Field
2of7
                                      7jumxjds
-------
  1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN TOXICS
                                OPTION REPORT
SAMPLE SITE*
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1^ - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 • TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o - XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
JUMX11393
7/18/97
9/26/98
L7IZ009
ppbv
6.60
2.21
0.56
ND
0.25
ND
ND
0.20
ND
ND
ND
ND
ND
ND
0.23
2.01
0.08
ND
ND
0.11
ND
ND
ND
4.32
ND
0.15 U
ND
ND
0.74
2,37
ND
0.18
ND
1.07
ND
0.28
ND
JUMX 10253
7/21/97
ppbv
#
#
#
#
#
#
#
*
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
«
#
#
#
JUMX 10256
7/22/97
8/8/97
L7HH011
ppbv
1.95
0.64
0.49
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.06
0.61
0.07
ND
ND
ND
ND
ND
ND
1.29
ND
ND
ND
ND
0.22
0.61
ND
ND
ND
0.29
ND
ND
ND
U = Less than the detection limit.
* = Sample voided due to field sample pump failure
+ = Sample not collected in field
# = Sample Voided in Field
3of7
                                                                            7jumx.xls
-------
  1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN TOXICS
                                 OPTION REPORT
SAMPLE SITE*
SAMPLE DATE
ANALYSIS DATE
PILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
JUMX 10257
7/23/97
8/9/97
L7HH017
ppbv
4.51
1.83
0.66
ND
1,3-BUTADIENE 0.18
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1-DICHLOROETHANE
CHLOROPRENE

BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 -DICHLOROPROPENE
1,1,2 • TRICHLOROETHANE
TOLUENE

DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ND
ND
0.29
ND
ND
ND

ND
ND
ND
0.07
1.43
0.07
ND
ND
0.31
ND
ND
ND
3.33

ND
0.08
ND
ND
ETHYLBENZENE ! 1.09
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
0 - XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
3.77
ND
0.27
ND
1.66
ND
0.13
ND
JUMX 10390
7/24/97
8/23/97
L7HV012
ppbv
3.71
1.56
0.53
ND
0.16
ND
ND
0.31
ND
ND
ND

ND
ND
ND
0.09
1.50
0.07
ND
ND
0.20
ND
ND
ND
3.44

ND
0.10 U
ND
ND
0.55
1.50
ND
ND
ND
0.75
ND
ND
ND
JUMX 10391
7/25/97
8/23/97
L7HV013
ppbv
3.12
O.B7
0.23
ND
0.11
ND
ND
0,32
ND
ND
ND

ND
ND
ND
0.08
1.38
0.09
ND
ND
0.22
ND
ND
ND
3.22

ND
0.09 U
ND
ND
0.61
1.59
ND
0.09 U
ND
0.79
ND
ND
ND
U = Less than the detection limit
* = Sample voided due to field sample pump failure
+ = Sample not collected in field
# = Sample Voided in Field
4 of 7
                                      7jumx.xls
-------
 1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN TOXICS
                                OPTION REPORT
SAMPLE SITE*
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - OtCHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m.p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o-XYLENE
m - DICHLOROBENZENE
p • DICHLOROBENZENE
o • DICHLOROBENZENE
JUMX 10379
7/28/97
B/21/97
L7HS015
ppbv
2.06
0.68
0.45
NO
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.06
0.59
0.08
ND
ND
ND
ND
ND
ND
1.29
ND
ND
ND
ND
0.20
0.65
ND
ND
ND
0.30
ND
ND
ND
JUMX 10377
7/29/97
8/8/97
L7HH005
ppbv
4.99
1.45
0.42
ND
0.06 U
ND
ND
0.04 U
ND
ND
ND
ND
ND
ND
0.07
1.28
0.06
ND
ND
0,31
ND
ND
ND
3,48
ND
0.10 U
0.04 U
ND
0.52
1.49
ND
0.73
ND
0.65
ND
0.09 U
ND
JUMX 10524D1
7/30/97
8/25/97
L7HY009
ppbv
5.07
0.85
0.45
ND
0.06 U
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.10
1.07
0.08
ND
ND
ND
ND
ND
ND
3.14
ND
0.09 U
ND
ND
0.59
1.60
ND
0.12
ND
0.75
ND
ND
ND
U = Less than the detection limit.
* = Sample voided due to field sample pump failure
+ = Sample not collected in field
# = Sample Voided in Field
5of7
                                                                            7jumx.xls
-------
  1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN TOXICS
                                 OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
JUMX10524R1
7/30/97
8/26/97
L7HZ004
UNITS | ppbv
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
4.92
1.35
0.43
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.07
1.07
0.06
ND
ND
TRICHLOROETHYLENE ND
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ND
ND
ND
3.40
ND
ND
ND
ND
ETHYLBENZENE 0.58
m,p - XYLENE 1.66
BROMOFORM
STYRENE
1 ,1 ,2,2 - TETRACHLOROETHANE
o - XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
ND
0.12
ND
0.76
ND
ND
ND
JUMX 10533D2
7/30/97
8/25/97
L7HY010
ppbv
4.99
0.84
0.45
ND
0.06 U
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.09
1.09
0.08
ND
ND
ND
ND
ND
ND
3.14
ND
0.11 U
ND
ND
0.64
1.72
ND
0.14
ND
0.80
ND
ND
ND
JUMX10533R2
7/30/97
8/30/97
L7H3018
ppbv
4.54
1.19
0.39
ND
0.18
ND
ND
0.02 U
ND
ND
ND
ND
ND
ND
0.08
1.23
0.07
ND
ND
ND
ND
ND
ND
2.60
ND
0.10 U
ND
ND
0.88
2.37
ND
0.29
ND
1.13
ND
0.15
ND
U = Less than the detection limit
* = Sample voided due to field sample pump failure
+ = Sample not collected in field
# = Sample Voided in Field
6 Of 7
                                      7jumxjds
-------
  1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN TOXICS
                                     OPTION REPORT
                      SAMPLE SITE #
                      SAMPLE DATE
                      ANALYSIS DATE
                      FILENAME
                      UNITS
                      ACETYLENE
                      PROPYLENE
                      CHLOROMETHANE
                      VINYL CHLORIDE
                      1,3-BUTADIENE
                      BROMOMETHANE
                      CHLOROETHANE
                      METHYLENE CHLORIDE
                      trans -1.2 - DICHLOROETHYLENE
                      1,1-D1CHLOROETHANE
                      CHLOROPRENE
                      BROMOCHLOROMETHANE
                      CHLOROFORM
                      1,2 - D1CHLOROETHANE
                      1,1,1 - TRICHLOROETHANE
                      BENZENE
                      CARBON TETRACHLORIDE
                      1,2 - DICHLOROPROPANE
                      BROMODICHLOROMETHANE
                      TRICHLOROETHYLENE
                      cis -1,3 - DICHLOROPROPENE
                      trans - 1,3 -DICHLOROPROPENE
                      1,1,2 - TRICHLOROETHANE
                      TOLUENE
                      DIBROMOCHLOROMETHANE
                      N-OCTANE
                      TETRACHLOROETHYLENE
                      CHLOROBENZENE
                      ETHYLBENZENE
                      m,p - XYLENE
                      BROMOFORM
                      STYRENE
                      1,1,2,2 - TETRACHLOROETHANE
                      0 -XYLENE
                      m - DICHLOROBENZENE
                      p - DICHLOROBENZENE
                      o • DICHLOROBENZENE
U = Less than the detection limit.
* = Sample voided due to field sample pump failure
+ = Sample not collected in field
# = Sample Voided in Field
            JUMX10523
               7/31/97
               8/23/97
              L7HV020
               ppbv
               7.97
               2.68
               0.53
               ND
               0.37
               ND
               ND
               0.32
               ND
               ND
               ND
               ND
               0.15
               ND
               0.09
               2.43
               0.09
               ND
               ND
               0.24
               ND
               ND
               ND
               7.22
               ND
               0.18
               0.08
               ND
               1.18
               3.09
               ND
               0.36
               ND
               1/49
               ND
               0.14
               ND
7 of 7
                                                                                       7iunw.xls
-------
1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                   TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DJCHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 • TETRACHLOROETHANE
o- XYLENE
m - DICHLOROBENZENE
p • DICHLOROBENZENE
o - DICHLOROBENZENE
JUMX 10521
8/1/97
8/23/97
L7HV014
ppbv
1.79
0.61
0.55
ND
0.15
ND
ND
0.12
ND
ND
ND
ND
ND
ND
0.08
0.69
0.09
ND
ND
ND
ND
ND
ND
1.87
ND
0.05 U
ND
ND
0.27
0.79
ND
ND
ND
0.41
ND
ND
ND
JUMX 10537D1
8/4/97
8/25/97
L7HY011
ppbv
6.90
1.73
0.56
ND
0.32
ND
ND
0.14
ND
ND
ND
ND
ND
ND
0.12
2.06
0.06
ND
ND
0.09
ND
ND
ND
4.98
ND
0.14 U
ND
ND
0.77
2.21
ND
0.09
ND
1.10
ND
0.22
ND
JUMX 10537R1
8/4/97
8/26/97
L7HZ006
ppbv
7.00
2.50
0.48
ND
0.04
ND
ND
0.15
ND
ND
ND
ND
ND
ND
0.10
2.13
0.07
ND
ND
0.09
ND
ND
ND
5.24
ND
0.16 U
ND
ND
0.77
2.16
ND
0.09
ND
1.12
ND
ND
ND
   •> *K - r1 ' -tinn limit
-------
1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                  TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1-DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 -DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOR08ENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o- XYLENE
m - DICHLOROBENZENE
p- DICHLOROBENZENE
o - DICHLOROBENZENE
JUMX 10538D2
8/4/97
8/25/97
L7HY012
ppbv
6.97
1.67
0.58
ND
0.28
ND
ND
0.15
ND
ND
ND
ND
ND
ND
0.11
2.24
0.09
ND
ND
0.11
ND
ND
ND
5.28
ND
0.13 U
ND
ND
0.79
2.30
ND
0.11
ND
1.14
ND
0.24
ND
JUMX 10538R2
8/4/97
8/26/97
L7HZ004
ppbv
6.96
2.32
0.68
ND
0.32
ND
ND
0.12
ND
ND
ND
ND
ND
ND
0.12
2.04
0.07
ND
ND
0.10
ND
ND
ND
5.42
ND
0.15 U
ND
ND
0.81
2.32
ND
0.11
ND
1.16
ND
0.27
ND
JUMX 10563
8/5/97
9/26/97
L7IY017
ppbv
2.64
0.75
0.62
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.07
0.60
0.06
ND
ND
0.12
ND
ND
ND
1.39
ND
0.06 U
ND
ND
0.22
0.62
ND
ND
ND
0.28
ND
0.05 U
ND
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                         TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2-DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o-XYLENE
m - DICHLOROBENZENE
p-DICHLOROBENZENE
o - DICHLOROBENZENE
JUMX 10535
8/6/97
8/30/97
L7H#021
ppbv
4.26
1.52
0.52
ND
0.36
ND
ND
0.29
ND
ND
ND
ND
ND
ND
0.09
2.28
0.08
ND
ND
0.18
ND
ND
ND
4.95
ND
0.14 U
0.07 U
ND
1.21
3.49
ND
0.30
ND
1.81
ND
0.34
ND
JUMX 10655
8/7/97
8/30/97
L7H#024
ppbv
0.40
0.36
0.45
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.07
0.31
0.07
ND
ND
NO
ND
ND
ND
0.61
ND
0.03 U
ND
ND
0.11 U
0.28
ND
ND
ND
0.16
ND
ND
ND
JUMX 10665
8/8/97
8/30/97
L7H#028
ppbv
0.37
0.19
0.19
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.08
0.40
0.08
ND
ND
ND
ND
ND
ND
0.97
ND
0.05 U
ND
ND
0.12
0.31
ND
ND
ND
0.17
ND
0.02 U
ND
U = Less than the detection limit.
# = Sample Voided in Field
3 of 11
                                 tyxnuds
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                        TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans • 1,2 - DICHLOROETHYLENE
1,1-DtCHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2-DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 • DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o- XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
JUMX 10663
8/11/97
8/31/97
L7H#030
ppbv
6.55
2.72
0.41
ND
0.36
ND
ND
0.03 U
ND
ND
ND
ND
ND
ND
0.08
2.14
0.07
ND
ND
0.05
ND
ND
ND
5.52
ND
0.16 U
0.02 U
ND
0.85
2.36
ND
0.20
ND
1.24
ND
0.21
ND
JUMX 10709
8/12/97
9/2/97
L71D012
ppbv
2.57
0.84
0.76
ND
0.06 U
ND
ND
0.87
ND
ND
ND
ND
ND
ND
0.16
0.82
0.08
ND
ND
0.12
ND
ND
ND
2.60
ND
0.07 U
ND
ND
0.34
0.95
ND
0.09 U
ND
0.50
ND
0.05 U
ND
JUMX 10708
8/13/97
9/2/97
L7IB013
ppbv
2.30
0.87
0.26
ND
0.05 U
ND
ND
0.04 U
ND
ND
ND
ND
ND
ND
0.29
0.93
0.09
ND
ND
ND
ND
ND
ND
5.77
ND
0.09 U
ND
ND
0.45
1.28
ND
0.08 U
ND
0.64
ND
0.05 U
ND
U = Less than the detection limit.
# = Sample Voided in Field
4 of 11
-------
    1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                         TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRfCHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o- XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
JUMX 10710
8/14/97
9/3/97
L7IB018
ppbv
2.97
1.04
0.35
ND
0.07 U
ND
ND
0.49
ND
ND
ND
ND
ND
ND
0.08
0.90
0.07
ND
ND
0.11
ND
ND
ND
2.42
ND
0.08 U
ND
ND
0.55
1.44
ND
0.18
ND
0.72
ND
0.04 U
ND
JUMX 10706D1
8/15/97
8/26/97
L7HY023
ppbv
4.13
1.20
0.50
ND
0.14
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.07
0.97
0.07
ND
ND
ND
ND
ND
ND
2.74
ND
0.06 U
ND
ND
0.62
1.86
ND
0.13
ND
0.80
ND
ND
ND
JUMX10706R1
8/15/97
8/30/97
L7H#016
ppbv
2.91
0.93
0.37
ND
0.12
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.07
1.05
0.08
ND
ND
ND
ND
ND
ND
2.55
ND
0.07 U
ND
ND
0.62
1.88
ND
0.17
ND
0.90
ND
0.08 U
ND
U = Less than the detection limit.
# = Sample Voided in Field
5of11
                                                                   Sjumxjcts
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                        TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 -DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 -TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 -TETRACHLOROETHANE
o-XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o • DICHLOROBENZENE
JUMX 10707D2
8/15/97
8/26/97
L7HY024
ppbv
4.19
1.29
0.49
ND
0.11
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.06
1.07
0.07
ND
ND
ND
ND
ND
ND
2.76
ND
0.07 U
ND
ND
0.61
1.90
ND
0.16
ND
0.89
ND
ND
ND
JUMX 10707R2
8/15/97
8/30/97
L7H#017
ppbv
3.15
0.91
0.35
ND
0.20
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.06
1.07
0.07
ND
ND
ND
ND
ND
ND
2.06
ND
0.07 U
ND
ND
0.85
2.58
ND
0.29
ND
1.21
ND
0.20
ND
JUMX 10705
8/18/97
9/3/97
L7IB023
ppbv
1.44
0.46
0.33
ND
ND
ND
ND
0.29
ND
ND
ND
ND
ND
ND
0.06
0.37
0.08
ND
ND
ND
ND
ND
ND
1.09
ND
0.03 U
ND
ND
0.16
0.44
ND
0.07 U
ND
0.22
ND
ND
ND
U = Less than the detection limit.
# = Sample Voided in Field
6 of 11
                                                                  Sjumx.xls
-------
    1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                        TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o - XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o • DICHLOROBENZENE
JUMX 10850
8/19/97
9/3/97
L7IC005
ppbv
1.77
0.74
0.22
ND
ND
ND
ND
0.12
ND
ND
ND
ND
ND
ND
0.08
0.89
0.08
ND
ND
ND
ND
ND
ND
2.23
ND
0.07 U
ND
ND
0.38
1.05
ND
0.17
ND
0.55
ND
0.07 U
ND
JUMX
8/20/97
ppbv
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
JUMX 10970D1
8/21/97
9/9/97
L7II009
ppbv
6.90
3.01
0.73
ND
0.39
ND
ND
1.42
ND
ND
ND
ND
ND
ND
0.26
2.32
0.09
ND
ND
0.59
ND
ND
ND
6,57
ND
0.23
0.06 U
ND
0.99
2.97
ND
0.50
ND
1.28
ND
0.29
ND
U = Less than the detection limit.
# = Sample Voided in Field
7 of 11
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                        TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 -DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 • DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 -TETRACHLOROETHANE
o- XYLENE
m - DICHLOROBENZENE
p • DICHLOROBENZENE
0 - DICHLOROBENZENE
JUMX 10970R1
8/21/97
9/11/97
L7IJ014
ppbv
6.12
2.84
0.78
ND
0.38
ND
ND
1.32
ND
ND
ND
ND
0.08
ND
0.20
2.21
0.08
ND
ND
0.43
ND
ND
ND
6.46
ND
0.21 U
0.05 U
ND
0.99
2.94
ND
0.53
ND
1.31
ND
0.29
ND
JUMX 10971 D2
8/21/97
9/9/97
L7II010
ppbv
6.97
2.84
0.67
ND
0.32
ND
ND
1.19
ND
ND
ND
ND
ND
ND
0.20
1.93
0.08
ND
ND
0.45
ND
ND
ND
6.25
ND
0.19 U
0.05 U
ND
0.96
2.90
ND
0.41
ND
1.22
ND
0.27
ND
JUMX10971R2
8/21/97
9/11/97
L7LJ013
ppbv
6.19
2.66
0.72
ND
0.36
ND
ND
1.19
ND
ND
ND
ND
0.06
ND
0.20
2.13
0.08
ND
ND
0.44
ND
ND
ND
6.25
ND
0.20 U
0.05 U
ND
1.00
3.00
ND
0.45
ND
1.32
ND
0.28
ND
U = Less than the detection limit.
# = Sample Voided in Field
8 of 11
-------
    1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                        TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 -TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 -TETRACHLOROETHANE
o- XYLENE
m - DICHLOROBENZENE
p • DICHLOROBENZENE
o - DICHLOROBENZENE
JUMX 10975
8/22/97
9/4/97
L7IC012
ppbv
3.48
1.40
0.21
ND
0.11
ND
ND
0.02 U
ND
ND
ND
ND
ND
ND
0.25
1.75
0.09
ND
ND
ND
ND
ND
ND
4.90
ND
0.13 U
0.02 U
ND
0.80
2.38
ND
1.40
ND
1.17
ND
0.08 U
ND
JUMX 10974
8/25/97
9/4/97
L7JC015
ppbv
3.38
1.27
0.49
ND
0.07 U
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.26
1.46
0.09
ND
ND
ND
ND
ND
ND
2.46
ND
0.09 U
ND
ND
0.41
1.23
ND
0.07 U
ND
0.65
ND
0.08 U
ND
JUMX 10968
8/26/97
9/4/97
L7IC019
ppbv
3.41
1.34
0.33
ND
0.18
ND
ND
0.07 U
ND
ND
ND
ND
ND
ND
0.10
1.50
0.07
ND
ND
0.14
ND
ND
ND
2.97
ND
0.10 U
ND
ND
0.51
1.49
ND
0.07 U
ND
0.79
ND
0.15
ND
U = Less than the detection limit.
# = Sample Voided in Field
9 Of 11
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                         TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 -TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o- XYLENE
m - DICHLOROBENZENE
p-DICHLOROBENZENE
0 - DICHLOROBENZENE
JUMX 10963D1
8/27/97
9/10/97
L7H013
ppbv
4.58
2.13
0.59
ND
0.25
ND
ND
0.10
ND
ND
ND
ND
ND
ND
0.19
1.78
0.08
ND
ND
ND
ND
ND
ND
3.67
ND
0.15 U
ND
ND
0.58
1.80
ND
0.10
ND
0.80
ND
0.25
ND
JUMX 10963R1
8/27/97
9/11/98
L71J017
ppbv
5.08
2.10
0.61
ND
0.24
ND
ND
0.08
ND
ND
ND
ND
ND
ND
0.19
1.80
0.08
ND
ND
ND
ND
ND
ND
3.48
ND
0.14 U
ND
ND
0.57
1.77
ND
0.11
ND
0.80
ND
0.22
ND
JUMX 10964D2
8/27/97
9/10/97
L7II014
ppbv
3.97
1.82
0.57
ND
0.26
ND
ND
0.10
ND
ND
ND
ND
ND
ND
0.18
1.64
0.08
ND
ND
ND
ND
ND
ND
3.51
ND
0.15 U
ND
ND
0.55
1.76
ND
0.09 U
ND
0.82
ND
0.23
ND
U = Less than the detection limit.
# = Sample Voided in Field
iOofn
-------
    1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                         TOXICS OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1-DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 -DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o - XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
JUMX 10964R2
8/27/97
9/11/97
L7IJ018
ppbv
4.84
1.89
0.66
ND
0.28
ND
ND
0.09
ND
ND
ND
ND
0.06 U
ND
0.18
1.74
0.07
ND
ND
ND
ND
ND
ND
3.75
ND
0.16 U
ND
ND
0.57
1.75
ND
0.11
ND
0.82
ND
0.24
ND
JUMX 10967
8/28/97
9/4/97
L7ID005
ppbv
4.42
1.56
0.32
ND
0.14
ND
ND
0.24
ND
ND
ND
ND
ND
ND
0.24
2.14
0.08
ND
ND
0.37
ND
ND
ND
4.62
ND
0.17 U
ND
ND
1.00
2.85
ND
0.14
ND
1.53
ND
0.19
ND
JUMX 10131
8/29/97
9/16/97
L7IP004
ppbv
7.45
1.84
0.37
ND
0.19
ND
ND
0.04 U
ND
ND
ND
ND
ND
ND
0.15
1.65
0.05
ND
ND
ND
ND
ND
ND
3.95
ND
0.11 U
ND
ND
1.15
3.23
ND
0.21
ND
1.32
ND
0.06 U
ND
U = Less than the detection limit.
# = Sample Voided in Field
11 of 11
                                                                  8jumx.xls
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                   TOXICS OPTION- JUNE 1997 REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1-DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m.p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o-XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
JUMX 11122
9/1/97
9/16/97
L7IP005
ppbv
1.69
0.39
0.55
ND
ND
ND
ND
0.01 U
ND
ND
ND
ND
ND
ND
0.07
0.44
0.08
ND
ND
ND
ND
ND
ND
0.92
ND
0.04 U
ND
ND
0.14
0.42
ND
0.02 U
ND
0.20
ND
0.06 U
ND
JUMX 11 129
9/2/97
9/16/97
L7IP007
ppbv
5.68
2.02
0.62
ND
0.28
ND
ND
0.08
ND
ND
ND
ND
ND
ND
0.20
1.46
0.07
ND
ND
ND
ND
ND
ND
3.17
ND
0.09 U
ND
ND
0.54
1.66
ND
0.09 U
ND
0.74
ND
0.07 U
ND
JUMX 11 128
9/3/97
9/16/98
L7IP009
ppbv
4.45
1.49
0.59
ND
0.21
ND
ND
0.09
ND
ND
ND
ND
ND
ND
0.21
0.14
0.07
ND
ND
0.08
ND
ND
ND
2.80
ND
0.11 U
ND
ND
0.44
1.39
ND
0.08 U
ND
0.63
ND
0.08 U
ND
U = Less than the detection limit.
* = Sample voided due to field sample pump failure
+ = Sample not collected in field
                                 10f9
-------
    1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                   TOXICS OPTION-JUNE 1997 REPORT
SAMPLE SJTE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1-DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DJCHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 -TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
0- XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
0 - DICHLOROBENZENE
JUMX 11199
9/4/97
9/17/97
L7IP013
ppbv
3.23
0.78
0.57
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.22
0.64
0.08
ND
ND
ND
ND
ND
ND
1.52
ND
0.05 U
ND
ND
0.22
0.67
ND
0.05 U
ND
0.31
ND
0.03 U
ND
JUMX 111 94
9/5/97
9/17/97
L7IP017
ppbv
6.41
1.57
0.52
ND
0.14
ND
ND
0.14
ND
ND
ND
ND
ND
ND
0.22
1.37
0.07
ND
ND
0.16
ND
ND
ND
5.33
ND
0.14 U
0.02 U
ND
0.81
2.60
ND
0.73
ND
1.05
ND
0.07 U
ND
JUMX 11193
9/8/97
9/17/97
L7IP019
ppbv
10.89
3.21
0.64
ND
0.42
ND
ND
0.12
ND
ND
ND
ND
ND
ND
0.22
2.51
0.07
ND
ND
0.02 U
ND
ND
ND
8.67
ND
0.19 U
0.02 U
ND
1.51
4.75
ND
0.76
ND
1.88
ND
0.17 U
ND
U = Less than the detection limit.
* = Sample voided due to field sample
+ = Sample not collected in field
pump failure
    2 of 9
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                   TOXICS OPTION-JUNE 1997 REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 -DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1 ,1 ,2,2 - TETRACHLOROETHANE
o - XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
JUMX 11287
9/9/97
9/18/97
L7IQ021
ppbv
6.47
2.05
0.58
ND
0.18
ND
ND
0.06
ND
ND
ND
ND
ND
ND
0.26
1.75
0.06
ND
ND
0.22
ND
ND
ND
5.13
ND
0.11 U
ND
ND
0.65
1.99
ND
0.10
ND
0.88
ND
0.08 U
ND
JUMX 11278
9/10/97
ppbv
*
*
*
<*
*
*
*
*
*
4t
w
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
JUMX 11404
9/11/97
9/11/97
L7IZ011
ppbv
10.87
2.87
0.58
ND
0.32
ND
ND
0.28
ND
ND
ND
ND
ND
ND
0.27
1.92
0.06
ND
ND
0.27
ND
ND
ND
5.45
ND
0.18
ND
ND
1.05
3.14
ND
0.48
ND
1.38
ND
0.07 U
ND
U = Less than the detection limit.
* = Sample voided due to field sample
+ = Sample not collected in field
pump failure
    3of9
                                                                 fijumx xls
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                   TOXICS OPTION-JUNE 1997 REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o - XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
0 - DICHLOROBENZENE
JUMX 11405
9/12/97
9/26/97
L7IZ008
ppbv
7.38
2.06
0.50
ND
0.21
ND
ND
0.49
ND
ND
ND
ND
ND
ND
0.35
1.45
0.06
ND
ND
ND
ND
ND
ND
4.43
ND
0.09 U
ND
ND
0.63
1.94
ND
0,11
ND
0.85
ND
0.09 U
ND
JUMX 11406
9715/97
ppbv
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
JUMX
9/16/97
ppbv
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
it
#
U = Less than the detection limit.
* = Sample voided due to field sample pump failure
+ = Sample not collected in field
4 of 9
                                                                 9mnu.xls
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                   TOXICS OPTION- JUNE 1997 REPORT
SAMPLE SITE*
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 -DtCHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o- XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
JUMX
9/17/97
ppbv
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
JUMX 11 393
9/18/97
9/26/97
L7IZ009
ppbv
6.60
2.21
0.64
ND
0.25
ND
ND
0.20
ND
ND
ND
ND
ND
ND
0.23
2.01
0.08
ND
ND
0.11
ND
ND
ND
4.32
ND
0.15
ND
ND
0.74
2.37
ND
0.18
ND
1.07
ND
0.28
ND
JUMX 11401
9/19/97
9/27/97
L71Z012
ppbv
3.66
1.17
0.54
ND
0.07 U
ND
ND
0.01 U
ND
ND
ND
ND
ND
ND
0.25
0.93
0.06
ND
ND
0.07 U
ND
ND
ND
2.15
ND
0.08 U
ND
ND
0.36
1.13
ND
0.07 U
ND
0.50
ND
0.10 U
ND
U = Less than the detection limit.
* = Sample voided due to field sample pump failure
+ = Sample not collected in field          50f9
                                                                  9jumx.xls
-------
   1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN
                   TOXICS OPTION-JUNE 1997 REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1-DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
els - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o-XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
0 - DICHLOROBENZENE
JUMX 11402
9/22/97
10/1/97
L7I$018
ppbv
5.52
1.49
0.48
ND
0.10
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.25
1.16
0.07
ND
ND
0.05 U
ND
ND
ND
4.28
ND
0.13 U
ND
ND
0.89
2.86
ND
1.17
ND
1.16
ND
0.24
ND
JUMX
9/23/97
ppbv
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
JUMX11467D1
9/24/97
10/3/97
L7JC009
ppbv
1.03
0.17
0.37
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.25
0.27
0.06
ND
ND
ND
ND
ND
ND
0.57
ND
ND
ND
ND
0.09 U
0.25
ND
ND
ND
0.11
ND
ND
ND
U = Less than the detection limit.
* = Sample voided due to field sample
+ = Sample not collected in field
pump failure
    6 of 9
-------
   1997 SNMOC (SPECIATED NON-METHANE ORUANIU UUMKUUNUS) - UKtsAN
                   TOXICS OPTION- JUNE 1997 REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 -TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 -TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
ra,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o - XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
JUMX11467R1
9/24/97
10/4/97
L7JD004

0.99
0.13
0.34
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.25
0.25
0.07
ND
ND
ND
ND
ND
ND
0.55
ND
0.02 U
ND
ND
0.08 U
0.22 U
ND
ND
ND
0.10
ND
ND
ND
JUMX11468D2
9/24/97
10/3/97
L7JC010
ppbv
1.04
0.17
0.32
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.23
0.26
0.07
ND
ND
ND
ND
ND
ND
0.45
ND
0.02 U
ND
ND
0.08 U
0.19 U
ND
ND
ND
0.09 U
ND
ND
ND
JUMX11468R2
9/24/97
10/4/97
L7JD005
ppbv
1.02
0.16
0.33
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.26
0.28
0.07
ND
ND
ND
ND
ND
ND
0.46
ND
ND
ND
ND
0.07 U
0.20 U
ND
ND
ND
0.09 U
ND
ND
ND
U = Less than the detection limit.
* = Sample voided due to field sample
+ = Sample not collected in field
pump failure
    7 of 9
                                                                  9jumx.xls
-------
                     TOXICS OPTION- JUNE 1997 REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p • XYLENE
BROMOFORM
STYRENE
1,1,2,2 -TETRACHLOROETHANE
o- XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
JUMX 11465
9/25/97
10/4/97
L7JC014
ppbv
6.12
1.92
0.34
ND
0.25
ND
ND
0.08 U
ND
ND
ND
ND
ND
ND
0.28
1.55
0.07
ND
ND
0.03 U
ND
ND
ND
3.71
ND
0.12 U
ND
ND
0.61
1.80
ND
0.11
ND
0.78
ND
0.14
ND
JUMX 11463
9/26/97
10/4/97
L7JC016
ppbv
4.85
0.79
0.38
ND
ND
ND
ND
0.16
ND
ND
ND
ND
0.07
ND
1.11
1.63
0.09
ND
ND
0.02 U
ND
ND
ND
4.13
ND
0.10 U
0.02 U
ND
0.61
1.33
ND
0.02 U
ND
0.60
ND
0.27
ND
JUMX 11464
9/29/97
10/4/97
L7JC020
ppbv
5.26
1.74
0.42
ND
0.18
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.71
1.41
0.08
ND
ND
ND
ND
ND
ND
4.7€
ND
0.14 U
ND
ND
0.66
1.98
ND
0.09 U
ND
0.81
ND
0.15
ND
U = Less than the detection limit.
* = Sample voided due to field sample
+ = Sample not collected in field
pump failure
     8 of 9
                                                                         9jurruu(ls
-------
                        TOXICS OPTION-JUNE 1997 REPORT
                   SAMPLE SITE #
                   SAMPLE DATE
                   ANALYSIS DATE
                   FILE NAME
                   UNITS
                   ACETYLENE
                   PROPYLENE
                   CHLOROMETHANE
                   VINYL CHLORIDE
                   1,3-BUTADIENE
                   BROMOMETHANE
                   CHLOROETHANE
                   METHYLENE CHLORIDE
                   trans -1,2 - DICHLOROETHYLENE
                   1,1 -DICHLOROETHANE
                   CHLOROPRENE
                   BROMOCHLOROMETHANE
                   CHLOROFORM
                   1,2 - DICHLOROETHANE
                   1,1,1 - TRICHLOROETHANE
                   BENZENE
                   CARBON TETRACHLORIDE
                   1,2 - DICHLOROPROPANE
                   BROMODICHLOROMETHANE
                   TRICHLOROETHYLENE
                   cis -1,3 - DICHLOROPROPENE
                   trans -1,3 - DICHLOROPROPENE
                   1,1,2 - TRICHLOROETHANE
                   TOLUENE
                   DIBROMOCHLOROMETHANE
                   N-OCTANE
                   TETRACHLOROETHYLENE
                   CHLOROBENZENE
                   ETHYLBENZENE
                   m,p-XYLENE
                   BROMOFORM
                   STYRENE
                   1,1,2,2 - TETRACHLOROETHANE
                   o-XYLENE
                   m - DICHLOROBENZENE
                   p - DICHLOROBENZENE
                    DICHLOROBENZENE
U = Less than the detection limit.
* = Sample voided due to field sample pump failure
+ = Sample not collected in field            9of9
JUMX11502
  9/30/97
  10/29/97
  L7JI021
   ppbv
  4.87
  1.93
  0.49
   ND
  0.31
   ND
   ND
  0.28
   ND
   ND
   ND
   ND
   ND
   ND
  0.56
  2.11
  0.11
   ND
   ND
  0.27
   ND
   ND
   ND
  5.31
   ND
  0.24
  0.06
  ND
  0.99
  2.89
  ND
  0.19
   ND
  1.30
   ND
  0.44
   ND
U
                                                                                   Sgumxxls
-------
  1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN TOXICS
                             OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1 ,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1 ,1 ,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o-XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
NWNJ 10024
7/15/97
8/7/97
L7HG009
ppbv
4.85
2.36
0.47
ND
0.12
ND
ND
0.70
ND
ND
ND
ND
ND
ND
0.17
0.96
0.08
ND
ND
0.05
ND
ND
ND
3.67
ND
0.18 U
0.18 U
ND
0.48
1.43
ND
0.05 U
ND
0.62
ND
0.07 U
ND
NWNJ 10176
7/21/97
8/19/97
L7HR009
ppbv
5.66
3.28
0.50
ND
0.18
ND
ND
1,30
ND
ND
ND
ND
ND
ND
0.15
1.08
0.08
ND
ND
ND
ND
ND
ND
2,65
ND
0.13 U
0.05 U
ND
0.39
1.12
ND
ND
0.53
ND
ND
ND
ND
NWNJ 10417
8/1/97
8/24/97
L7HW006
ppbv
2.75
1.58
0.37
ND
0.12
ND
ND
0.54
ND
ND
ND
ND
ND
ND
0.17
0.81
0.07
ND
ND
0.17
ND
ND
ND
4.30
ND
0.15 U
0.52 U
ND
0.42
1.23
ND
0.21
ND
0.55
ND
0.05 U
ND
U = Less than the detection limit.
                                  1 of 4
                                                                   Nwr>i_97.xls
-------
 1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN TOXICS
                           OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2-DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
Cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m.p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o - XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
NWNJ 10557
8/7/97
3123137
L7IL007
pbbv
6.09
1.72
0.43
NO
0.12
ND
ND
0.76
ND
ND
ND
ND
ND
ND
0.18
0.93
0.08
ND
ND
0.08
ND
ND
ND
3.92
ND
0.21 U
0.23
ND
0.48
1.46
ND
0.10
ND
0.65
ND
0.09 U
ND
NWNJ 10668
8/13/97
9/13/97
L7JL008
pbbv
2.63
1.12
0.47
NO
0.08 U
ND
ND
0.11
ND
ND
ND
ND
ND
ND
0.08
0.58
0.07
ND
ND
ND
ND
ND
ND
1.41
ND
0.13 U
0.04 U
ND
0.24
0.76
ND
0.05 U
ND
0.36
ND
0.02 U
ND
NWNJ 10703
8/19/97
9/13/97
L7IL019
pbbv
3.72
2.05
0.58
ND
0.14
ND
ND
1.38
ND
ND
ND
ND
ND
ND
0.58
1.17
0.06
ND
ND
0.09
ND
ND
ND
33.35
ND
0.30
0.15 U
ND
2.18
7.55
ND
1.88
ND
3.82
ND
0,64
ND
U = Less than the detection limit.
                                 2 Of 4
-------
  1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN TOXICS
                             OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADIENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1-DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 -TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - DICHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1,1,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m,p - XYLENE
BROMOFORM
STYRENE
1,1,2,2 -TETRACHLOROETHANE
o- XYLENE
m - DICHLOROBENZENE
p - DICHLOROBENZENE
o - DICHLOROBENZENE
NWNJ 10958
8/25/97
9/13/97
L7IL020
ppbv
4.78
4.81
0.46
ND
0.28
ND
ND
1.05
ND
ND
ND
ND
ND
ND
0.26
1.29
0.06
ND
ND
0.08
ND
ND
ND
5.00
ND
0.20 U
0.29
ND
0.74
2.11
ND
0.15
ND
1.00
ND
0.17
ND
NWNJ11013D1
8/27/97
9/17/97
L7IQ006
ppbv
7.15
5.25
0.49
ND
0.32
ND
ND
1,11
ND
ND
ND
ND
ND
ND
0.16
1.47
0.13
ND
ND
ND
ND
ND
ND
4.45
ND
0.32
0.08 U
ND
0.66
2.13
ND
0.11
ND
0.94
ND
0.08 U
ND
NWNJ 11013R1
S/27/97
9/17/97
L7IR006
ppbv
7.65
5.33
0.51
ND
0.33
ND
ND
1.16
ND
ND
ND
ND
ND
ND
0.16
1.46
0.12
ND
ND
ND
ND
ND
ND
4.61
ND
0.33
0.08 U
ND
0.70
2.09
ND
0.13
ND
0.96
ND
0.11 U
ND
U = Less than the detection limit.
                                  3 of 4
                                                                  Nwni_97.xls
-------
 1997 SNMOC (SPECIATED NON-METHANE ORGANIC COMPOUNDS) - URBAN TOXICS
                            OPTION REPORT
SAMPLE SITE #
SAMPLE DATE
ANALYSIS DATE
FILE NAME
UNITS
ACETYLENE
PROPYLENE
CHLOROMETHANE
VINYL CHLORIDE
1,3-BUTADlENE
BROMOMETHANE
CHLOROETHANE
METHYLENE CHLORIDE
trans - 1,2 - DICHLOROETHYLENE
1,1 - DICHLOROETHANE
CHLOROPRENE
BROMOCHLOROMETHANE
CHLOROFORM
1,2 - DICHLOROETHANE
1,1,1 - TRICHLOROETHANE
BENZENE
CARBON TETRACHLORIDE
1,2 - D1CHLOROPROPANE
BROMODICHLOROMETHANE
TRICHLOROETHYLENE
cis - 1,3 - DICHLOROPROPENE
trans - 1,3 - DICHLOROPROPENE
1 ,1 ,2 - TRICHLOROETHANE
TOLUENE
DIBROMOCHLOROMETHANE
N-OCTANE
TETRACHLOROETHYLENE
CHLOROBENZENE
ETHYLBENZENE
m.p-XYLENE
BROMOFORM
STYRENE
1,1,2,2 - TETRACHLOROETHANE
o-XYLENE
m - DICHLOROBENZENE
p -DICHLOROBENZENE
o - DICHLOROBENZENE
NWNJ11014D2
8/27/97
9/17/97
L7IQ006
ppbv
6.33
5.14
0.46
ND
0.31
ND
ND
1.13
ND
ND
ND
ND
ND
ND
0.18
1.40
0.12
ND
ND
ND
ND
ND
ND
4.58
ND
0.34
0.08 U
ND
0.66
2.04
ND
0.12
ND
0.93
ND
0.08 U
ND
NWNJ 11014R2
8/27/97
9/17/97
LR1R007
ppbv
7.88
5.50
0.50
ND
0.32
ND
ND
1.25
ND
ND
ND
ND
ND
ND
0.17
1.50
0.11
ND
ND
ND
ND
ND
ND
4.94
ND
0.37
0.08 U
ND
0.72
2.21
ND
0.13
ND
0.97
ND
0.11 U
ND
NWNJ 11309
9/12/97
10/29/97
L7JJ022
ppbv
4.26
2.81
0.41
ND
0.23
ND
ND
0.29
ND
ND
ND
ND
ND
ND
0.14
1.07
0.11
ND
ND
0.02 U
ND
ND
ND
2.94
ND
0.13 U
0.52
ND
0.60
1.77
ND
0.11
ND
0.82
ND
0.13 U
ND
U = Less than the detection limit.
                                 4 Of 4
                                                                 Nwnj_97.xb
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FIELD BLANK DATA
Sample Site: Newark, New Jersey
RAW AMOUNT
Derivatized Cone, (ug/ml)
Data File ID
FBID
Date Analyzed
O7J$018
11325FB
10/31/97

Formaldehyde
Acetaldehyde
Acrolein
Acetone
Propionaldehyde
Crotonaldehyde
Butyr/lsobutyraldehyde
Benzaldehyde
Isovaleraldehyde
Valeraldehyde
Tolualdehydes
Hexaldehyde
2,5-Dimethylbenzaldehyde
0.09
0.14
0.00
0.66
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Field Blanks
Underivatized Cone, (total ug)
Data File ID
FBID
Date Analyzed
O7JS018
11325FB
10/31/97

Formaldehyde
Acetaldehyde
Acrolein
Acetone
Propionaldehyde
Crotonaldehyde
Butyraldehyde
Benzaldehyde
Isovaleraldehyde
Valeraldehyde
Tolualdehydes
Hexaldehyde
2,5-Dimethylbenzaldehyde
0.05
0.11
ND
0.65
ND
ND
0.00
ND
ND
ND
ND
ND
ND
-------
 FIELD BLANK DATA
Sample Site:  Dallas, Texas
RAW AMOUNT
Derivatized Cone, (ug/ml)
Data File ID
FBID
Date Analyzed
O7JS013
11358FB
10/30/97

Formaldehyde
Acetaldehyde
Acrolein
Acetone
Propionaldehyde
Crotonaldehyde
Butyr/lsobutyraldehyde
Benzaldehyde
Isovaleraldehyde
Valeraldehyde
Tolualdehydes
Hexaldehyde
2,5-Dimethylbenzaldehyde
0.06
0.13
0.00
0.31
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Field Blanks
Underivatized Conc.(total ug)
Data File ID
FBID
Date Analyzed
O7JS013
11358FB
10/30/97

Formaldehyde
Acetaldehyde
Acrolein
Acetone
Propionaldehyde
Crotonaldehyde
Butyraldehyde
Benzaldehyde
Isovaleraldehyde
Valeraldehyde
Tolualdehydes
Hexaldehyde
2,5-Dimethylbenzaldehyde
0.03
0.10
ND
0.31
ND
ND
ND
ND
ND
ND
ND
ND
ND
-------
FIELD BLANK DATA
Sample Site: Dallas, Texas (CAMS 5)
RAW AMOUNT
Derivatized Cone, (ug/ml)
Data File ID
FBID
Date Analyzed
O7J$01 1
11360FB
10/30/97

Formaldehyde
Acetaldehyde
Acrolein
Acetone
Propionaldehyde
Crotonaldehyde
Butyr/lsobutyraldehyde
Benzaldehyde
Isovaleraldehyde
Valeraldehyde
Tolualdehydes
Hexaldehyde
2,5-Dimethylbenzaldehyde
0.16
0.12
0.00
0.56
0.02
0.00
0.07
0.00
0.00
0.00
0.00
0.00
0.00
Field Blanks
Underivatized Conc.(total ug)
Data File ID
FBID
Date Analyzed
07J$01 1
11360FB
10/30/97

Formaldehyde
Acetaldehyde
Acrolein
Acetone
Propionaldehyde
Crotonaldehyde
Butyraldehyde
Benzaldehyde
Isovaleraldehyde
Valeraldehyde
Tolualdehydes
Hexaldehyde
2,5-Dimethylbenzaldehyde
0.09
0.10
ND
0.55
0.02
ND
0.08
ND
ND
ND
ND
ND
ND
-------
 FIELD BLANK DATA
Sample Site:  Dallas, Texas (CAMS13)
RAW AMOUNT
Derivatized Cone, (ug/ml)
Data File ID
FBID
Date Analyzed
07J$010
11353FB
10/30/97

Formaldehyde
Acetaldehyde
Acrolein
Acetone
Propionaldehyde
Crotonaldehyde
Butyr/lsobutyraldehyde
Benzaldehyde
Isovaleraldehyde
Valeraldehyde
Tolualdehydes
Hexaldehyde
2,5-Dimethylbenzaldehyde
0.13
0.14
0.00
0.69
0.03
0.00
0.05
0.00
0.00
0.00
0.00
0.00
0.00
Field Blanks
Underivatized Conc.(total ug)
Data File ID
FBID
Date Analyzed
07J$010
11353FB
10/30/97

Formaldehyde
Acetaldehyde
Acrolein
Acetone
Propionaldehyde
Crotonaldehyde
Butyraidehyde
Benzaldehyde
Isovaleraldehyde
Valeraldehyde
Tolualdehydes
Hexaldehyde
2,5-Dimethylbenzaldehyde
0.07
0.11
ND
0.67
0.03
ND
0.06
ND
ND
ND
ND
ND
ND
-------
                                  TECHNICAL REPORT DATA
                  (PLEASE READ INSTRUCTIONS ON THE REVERSE BEFORE COMPLETING)
 1. REPORT NO.
  EPA-454/R-99-016
3. RECIPIENT'S ACCESSION NO.
4. TITLE AND SUBTITLE
  1997 Nonmethane Organic Compounds (NMOC) And Speciated
  Nonmethane Organic Compounds (SNMOC) Monitoring Program
5. REPORT DATE
   1/1/99
6. PERFORMING ORGANIZATION CODE
7. AUTHOR(S)
  Eastern Research Group, Inc.
  110 Hartwell Avenue, Lexington, MA 02173
8. PERFORMING ORGANIZATION REPORT NO.
9. PERFORMING ORGANIZATION NAME AND ADDRESS
10. PROGRAM ELEMENT NO.
                                                         11. CONTRACT/GRANT NO.
                                                           68-03-0095
12. SPONSORING AGENCY NAME AND ADDRESS
  Office Of Air Quality Planning And Standards
  U. S. Environmental Protection Agency
!  Research Triangle Park, N. C. 27711
                                                         13. TYPE OF REPORT AND PERIOD COVERED
14. SPONSORING AGENCY CODE
 15. SUPPLEMENTARY NOTES
 16. ABSTRACT
  IN CERTAIN AREAS OF THE COUNTRY WHERE THE NATIONAL AMBIENT AIR QUALITY STANDARD (NAAQS)
  FOR OZONE IS BEING EXCEEDED, ADDITIONAL MEASUREMENTS OF AMBIENT NONMETHANE ORGANIC
  COMPOUNDS (NMOC) ARE NEEDED TO ASSIST THE AFFECTED STATES IN DEVELOPING REVISED OZONE
  CONTROL STRATEGIES. BECAUSE OF PREVIOUS DIFFICULTY IN OBTAINING ACCURATE NMOC
  MEASUREMENTS, THE U.S. ENVIRONMENTAL PROTECTION AGENCY (EPA) HAS PROVIDED MONITORING
  AND ANALYTICAL ASSISTANCE TO THESE STATES, BEGINNING IN 1984 AND CONTINUING THROUGH THE
  1997 NMOC MONITORING PROGRAM.
17. KEY WORDS AND DOCUMENT ANALYSIS
a. DESCRIPTORS
Ozone Control Strategies
National Ambient Air Quality Standards
Nonmethane Organic Compound
Monitoring Analysis
1997 NMOC Monitoring Program
18. DISTRIBUTION STATEMENT
UNLIMITED
b. IDENTIFIERS/OPEN ENDED TERMS


c. COSATI FIELD/GROUP
21. NO. OF PAGES
498
22. PRICE
-------