US Environmental Protection Agency Office of Pesticide Programs Occupational Pesticide Handler Unit Exposure Surrogate Reference Table September 2015 ------- USEPA/ Office of Pesticide Programs / Health Effects Division Occupational Pesticide Handler Unit Exposure Surrogate Reference Table Exposure Scenario (Activity, Equipment, Formulation, Site, etc.)1 Exposure Route Personal Protective Equipment (PPE) Level2 Data Source3 Statistic Unit Exposure (Hg/lbai) Mixing / Loading Dry Flowable Dermal Single layer, no gloves (A) AHETF Mean 227 Single layer, gloves AHETF Mean 51.6 Double layer, gloves (B) AHETF Mean 41.2 Engineering control (water-soluble packaging) PHED "Best fit" 9.8 Inhalation No Respirator AHETF Mean 8.96 PF5 (C) AHETF Mean 1.79 PF10 (D) AHETF Mean 0.896 Engineering control (water-soluble packaging) PHED "Best fit" 0.24 Mixing / Loading Granules Dermal Single layer, no gloves PHED "Best fit" 8.4 Single layer, gloves PHED "Best fit" 6.9 Double layer, gloves PHED "Best fit" 3.4 Engineering control (closed loading system) PHED "Best fit" 8.6 Inhalation No Respirator PHED "Best fit" 1.7 PF5 (C) PHED "Best fit" 0.34 PF10 (D) PHED "Best fit" 0.17 Engineering control (closed loading system) PHED "Best fit" 0.083 Mixing / Loading Liquids Dermal Single layer, no gloves (A) AHETF Mean 220 Single layer, gloves AHETF Mean 37.6 Double layer, gloves (B) AHETF Mean 29.1 Engineering control (closed loading system) PHED "Best fit" 8.6 Inhalation No Respirator AHETF Mean 0.219 PF5 (C) AHETF Mean 0.044 PF10 (D) AHETF Mean 0.022 Engineering control (closed loading system) PHED "Best fit" 0.083 Mixing / Loading Wettable Powders Dermal Single layer, no gloves PHED "Best fit" 3700 Single layer, gloves PHED "Best fit" 170 Double layer, gloves (B) PHED "Best fit" 130 Engineering control (water-soluble packaging) PHED "Best fit" 9.8 Page 1 of 14 ------- USEPA/ Office of Pesticide Programs / Health Effects Division Occupational Pesticide Handler Unit Exposure Surrogate Reference Table Exposure Scenario (Activity, Equipment, Formulation, Site, etc.)1 Exposure Route Personal Protective Equipment (PPE) Level2 Data Source3 Statistic Unit Exposure (Hg/lbai) Inhalation No Respirator PHED "Best fit" 43.4 PF5 (C) PHED "Best fit" 8.68 PF10 (D) PHED "Best fit" 4.34 Engineering control (water-soluble packaging) PHED "Best fit" 0.24 Applicator, Aerial, Fixed-Wing Liquids Dermal Engineering control (Enclosed cockpit) AHETF Mean 2.08 Inhalation Engineering control (Enclosed cockpit) AHETF Mean 0.0049 Granules Dermal Engineering control (Enclosed cockpit) PHED "Best fit" 1.7 Inhalation Engineering control (Enclosed cockpit) PHED "Best fit" 1.3 Applicator, Aerosol Can All sites (except animal treatments) Dermal Single layer, no gloves PHED "Best fit" 190000 Single layer, gloves PHED "Best fit" 81000 Double layer, gloves (B) PHED "Best fit" 64000 Inhalation No Respirator PHED "Best fit" 1300 PF5 (C) PHED "Best fit" 260 PF10 (D) PHED "Best fit" 130 Animal (pet and livestock) treatments Dermal Single layer, no gloves MRID 44433302 Mean 544000 Single layer, gloves (E) MRID 44433302 Mean 503000 Double layer, gloves (B, E) MRID 44433302 Mean 273000 Inhalation No Respirator MRID 44433302 Mean 3270 PF5 (C) MRID 44433302 Mean 654 PF10 (D) MRID 44433302 Mean 327 Applicator, Open Cab Airblast Dermal Single layer, no gloves (A) AHETF Mean 1770 Single layer, gloves AHETF Mean 1590 Single layer, gloves, chemical- resistant hat AHETF Mean 215 Double layer, gloves (B) AHETF Mean 1480 Double layer, gloves, chemical-resistant hat (B) AHETF Mean 141 Engineering control (Enclosed Cab) AHETF Mean 14.6 Inhalation No Respirator AHETF Mean 4.71 PF5 (C) AHETF Mean 0.942 Page 2 of 14 ------- USEPA/ Office of Pesticide Programs / Health Effects Division Occupational Pesticide Handler Unit Exposure Surrogate Reference Table Exposure Scenario (Activity, Equipment, Formulation, Site, etc.)1 Exposure Route Personal Protective Equipment (PPE) Level2 Data Source3 Statistic Unit Exposure (Hg/lbai) PF10 (D) AHETF Mean 0.471 Engineering control (Enclosed Cab) AHETF Mean 0.068 Applicator, Open Cab Groundboom Dermal Single layer, no gloves (A) AHETF Mean 78.6 Single layer, gloves AHETF Mean 16.1 Double layer, gloves (B) AHETF Mean 12.6 Engineering control (Enclosed Cab) PHED "Best fit" 5.1 Inhalation No Respirator AHETF Mean 0.34 PF5 (C) AHETF Mean 0.07 PF10 (D) AHETF Mean 0.03 Engineering control (Enclosed Cab) PHED "Best fit" 0.043 Applicator, Open Cab Solid Broadcast Spreader Dermal Single layer, no gloves PHED "Best fit" 9.9 Single layer, gloves (E) PHED "Best fit" 7.2 Double layer, gloves (B, E) PHED "Best fit" 4.2 Engineering control (Enclosed Cab) PHED "Best fit" 2.0 Inhalation No Respirator PHED "Best fit" 1.2 PF5 (C) PHED "Best fit" 0.24 PF10 (D) PHED "Best fit" 0.12 Engineering control (Enclosed Cab) PHED "Best fit" 0.22 Applicator, Granules by Hand Dermal Single layer, no gloves (A) PHED "Best fit" 104000 Single layer, gloves PHED "Best fit" 71000 Double layer, gloves (B) PHED "Best fit" 40280 Inhalation No Respirator PHED "Best fit" 470 PF5 (C) PHED "Best fit" 94 PF10 (D) PHED "Best fit" 47 Applicator, Paintbrush/roller Dermal Single layer, no gloves PHED "Best fit" 180000 Single layer, gloves (E) PHED "Best fit" 24000 Double layer, gloves (B, E) PHED "Best fit" 22000 Inhalation No Respirator PHED "Best fit" 280 PF5 (C) PHED "Best fit" 56 PF10 (D) PHED "Best fit" 28 Applicator, Airless Sprayer Dermal Single layer, no gloves PHED Mean 42600 Page 3 of 14 ------- USEPA/ Office of Pesticide Programs / Health Effects Division Occupational Pesticide Handler Unit Exposure Surrogate Reference Table Exposure Scenario (Activity, Equipment, Formulation, Site, etc.)1 Exposure Route Personal Protective Equipment (PPE) Level2 Data Source3 Statistic Unit Exposure (Hg/lbai) MRID 43600102 Single layer, gloves (E) PHED Mean 11700 MRID 43600102 Double layer, gloves (B, E) PHED Mean 10600 MRID 43600102 Inhalation No Respirator PHED Mean 560 MRID 43600102 PF5 (C) PHED Mean 112 MRID 43600102 PF10 (D) PHED Mean 56 MRID 43600102 Flagger Liquids Dermal Single layer, no gloves PHED "Best f t" 11 Single layer, gloves PHED "Best f t" 12 Double layer, gloves (B) PHED "Best f t" 10.6 Inhalation No Respirator PHED "Best f t" 0.35 PF5 (C) PHED "Best f t" 0.07 PF10 (D) PHED "Best f t" 0.04 Granules Dermal Single layer, no gloves (F) PHED "Best f t" 2.75 Single layer, gloves (E, F) PHED "Best f t" 2.73 Double layer, gloves (E, G) PHED "Best f t" 1.59 Inhalation No Respirator PHED "Best f t" 0.15 PF5 (C) PHED "Best f t" 0.03 PF10 (D) PHED "Best f t" 0.02 Loader / Applicator, Belly Grinder Dermal Single layer, no gloves PHED "Best f t" 10000 Single layer, gloves PHED "Best f t" 9300 Double layer, gloves (B) PHED "Best f t" 5700 Inhalation No Respirator PHED "Best f t" 62 PF5 (C) PHED "Best f t" 12.4 PF10 (D) PHED "Best f t" 6.2 Loader / Applicator, "Push-type" Rotary Spreader Dermal Single layer, no gloves ORETF Mean 440 Single layer, gloves ORETF Mean 240 Double layer, gloves (B) ORETF Mean 130 Inhalation No Respirator ORETF Mean 10 PF5 (C) ORETF Mean 2.0 PF10 (D) ORETF Mean 1.0 Dermal Single layer, no gloves PHED "Best fit" 100000 Page 4 of 14 ------- USEPA/ Office of Pesticide Programs / Health Effects Division Occupational Pesticide Handler Unit Exposure Surrogate Reference Table Exposure Scenario (Activity, Equipment, Formulation, Site, etc.)1 Exposure Route Personal Protective Equipment (PPE) Level2 Data Source3 Statistic Unit Exposure (Hg/lbai) Mixer / Loader / Applicator, Manually- pressurized Handwand Greenhouses, Wildlife management, Nurseries, Landscaping, Industrial/Commercial areas, Poultry/livestock houses, Animal treatments, Outdoor residential areas, Interior landscaping, Aquatic areas, Structural, Mushroom houses, Christmas Tree Farms Single layer, gloves PHED "Best fit" 430 Double layer, gloves (B) PHED "Best fit" 365 Inhalation No Respirator PHED "Best fit" 30 PF5 (C) PHED "Best fit" 6.0 PF10 (D) PHED "Best fit" 3.0 Food handling establishments, Warehouses, Residential Living Spaces, Childcare centers/schools Dermal Single layer, no gloves (A) PHED "Best f t" 29000 Single layer, gloves PHED "Best f t" 8600 Double layer, gloves (B) PHED "Best f t" 6200 Inhalation No Respirator PHED "Best f t" 1100 PF5 (C) PHED "Best f t" 220 PF10 (D) PHED "Best f t" 110 Mixer / Loader / Applicator, Backpack Sprayer General Broadcast/Foliar Applications Poultry/Livestock houses, Industrial/Commercial areas, Livestock treatments, Structural treatments Dermal Single layer, no gloves (A) PHED "Best f t" 2510 Single layer, gloves PHED "Best f t" 2500 Double layer, gloves (B) PHED "Best f t" 1600 Inhalation No Respirator PHED "Best f t" 30 PF5 (C) PHED "Best f t" 6.0 PF10 (D) PHED "Best f t" 3.0 Greenhouses Dermal Single layer, no gloves (A) AHETF Mean 13200 Single layer, gloves AHETF Mean 11200 Double layer, gloves (B) AHETF Mean 6230 Inhalation No Respirator AHETF Mean 140 PF5 (C) AHETF Mean 28 PF10 (D) AHETF Mean 14 Nurseries, Christmas Tree Farms, Wildlife management, Rights-of-way, Forestry, Landscaping (turf/plants/bushes/trees), Dermal Single layer, no gloves (A) AHETF Mean 58400 Single layer, gloves AHETF Mean 30500 Double layer, gloves (B) AHETF Mean 16900 Inhalation No Respirator AHETF Mean 69.1 PF5 (C) AHETF Mean 13.8 PF10 (D) AHETF Mean 6.9 Dermal Single layer, no gloves (A) MRID 44339801 Mean 8260 Page 5 of 14 ------- USEPA/ Office of Pesticide Programs / Health Effects Division Occupational Pesticide Handler Unit Exposure Surrogate Reference Table Exposure Scenario (Activity, Equipment, Formulation, Site, etc.)1 Exposure Route Personal Protective Equipment (PPE) Level2 Data Source3 Statistic Unit Exposure (Hg/lbai) Foundation/perimeter treatments, Aquatic areas4 Single layer, gloves MRID 44339801 Mean 8260 Double layer, gloves (B) MRID 44339801 Mean 4120 Inhalation No Respirator MRID 44339801 Mean 2.58 PF5 (C) MRID 44339801 Mean 0.516 PF10 (D) MRID 44339801 Mean 0.258 Ground/Soil-directed (e.g., drench treatments, herbicides in orchards, vineyards, and tree farms)4 Dermal Single layer, no gloves (A) MRID 44339801 Mean 8260 Single layer, gloves MRID 44339801 Mean 8260 Double layer, gloves (B) MRID 44339801 Mean 4120 Inhalation No Respirator MRID 44339801 Mean 2.58 PF5 (C) MRID 44339801 Mean 0.516 PF10 (D) MRID 44339801 Mean 0.258 Granule formulation applications Dermal Single layer, no gloves (A) MRID 45167201 Mean 155 Single layer, gloves MRID 45167201 Mean 144 Double layer, gloves (B) MRID 45167201 Mean 72.6 Inhalation No Respirator MRID 45250702 Mean 23.8 MRID 45167201 PF5 (C) MRID 45250702 Mean 4.76 MRID 45167201 PF10 (D) MRID 45250702 Mean 2.38 MRID 45167201 Mixer / Loader / Applicator, Mechanically- pressurized Handgun Sprayer Orchards, Vineyards, Specialty Agricultural Crops, Rights-of- way, Nurseries, Landscaping (non-turf), Industrial/Comm ercial areas, Aquatic areas, Wildlife management, Christmas Tree farms General Broadcast/Foliar Applications Dermal Single layer, no gloves (A) AHETF Mean 6050 Single layer, gloves AHETF Mean 2050 Double layer, gloves (B) AHETF Mean 1360 Inhalation No Respirator AHETF Mean 8.68 PF5 (C) AHETF Mean 1.74 PF10 (D) AHETF Mean 0.87 Drench/Soil- directed Applications All formulations, except wettable powders Dermal Single layer, no gloves (A) AHETF Mean 6050 Single layer, gloves AHETF Mean 2050 Double layer, gloves (B) AHETF Mean 1360 Inhalation No Respirator AHETF Mean 8.68 PF5 (C) AHETF Mean 1.74 PF10 (D) AHETF Mean 0.87 Wettable Powders Dermal Single layer, no gloves (A) MRID 45773201 Mean 4310 Single layer, gloves MRID 45773201 Mean 4310 Double layer, gloves (B) MRID 45773201 Mean 2160 Inhalation No Respirator MRID 45773201 Mean 3931 Page 6 of 14 ------- USEPA/ Office of Pesticide Programs / Health Effects Division Occupational Pesticide Handler Unit Exposure Surrogate Reference Table Exposure Scenario (Activity, Equipment, Formulation, Site, etc.)1 Exposure Route Personal Protective Equipment (PPE) Level2 Data Source3 Statistic Unit Exposure (Hg/lbai) PF5 (C) MRID 45773201 Mean 786 PF10 (D) MRID 45773201 Mean 393 Single layer, no gloves PHED "Best f t" 1800 Dermal Single layer, gloves PHED "Best f t" 640 Structural, Warehouses, Poultry/livestock Double layer, gloves (B) PHED "Best f t" 365 houses, Livestock treatments No Respirator PHED "Best f t" 79 Inhalation PF5 (C) PHED "Best f t" 15.8 PF10 (D) PHED "Best f t" 7.9 Single layer, no gloves (A) PHED "Best f t" 3500 Dermal Single layer, gloves PHED "Best f t" 2500 General Broadcast/Foliar Double layer, gloves (B) PHED "Best f t" 1600 Applications No Respirator PHED "Best f t" 120 Inhalation PF5 (C) PHED "Best f t" 24 PF10 (D) PHED "Best f t" 12 All formulations, except wettable powders Single layer, no gloves (A) PHED "Best f t" 3500 Greenhouses, Mushroom houses Dermal Single layer, gloves PHED "Best f t" 2500 Double layer, gloves (B) PHED "Best f t" 1600 No Respirator PHED "Best f t" 120 Drench/Soil- directed Applications Inhalation PF5 (C) PHED "Best f t" 24 PF10 (D) PHED "Best f t" 12 Single layer, no gloves (A) MRID 45773201 Mean 4310 Dermal Single layer, gloves MRID 45773201 Mean 4310 Wettable Double layer, gloves (B) MRID 45773201 Mean 2160 Powders No Respirator MRID 45773201 Mean 3931 Inhalation PF5 (C) MRID 45773201 Mean 786 PF10 (D) MRID 45773201 Mean 393 Single layer, no gloves (A) ORETF Mean 1140 Dermal Single layer, gloves ORETF Mean 880 Liquids Double layer, gloves (B) ORETF Mean 450 No Respirator ORETF Mean 1.9 Turf (lawns, fields, golf courses) Inhalation PF5 (C) ORETF Mean 0.38 PF10 (D) ORETF Mean 0.19 Water- dispersible Granules Single layer, no gloves (A) ORETF Mean 1960 Dermal Single layer, gloves ORETF Mean 1400 Double layer, gloves (B) ORETF Mean 740 Inhalation No Respirator ORETF Mean 42 Page 7 of 14 ------- USEPA/ Office of Pesticide Programs / Health Effects Division Occupational Pesticide Handler Unit Exposure Surrogate Reference Table Exposure Scenario (Activity, Equipment, Formulation, Site, etc.)1 Exposure Route Personal Protective Equipment (PPE) Level2 Data Source3 Statistic Unit Exposure (Hg/lbai) PF5 (C) ORETF Mean 8.40 PF10 (D) ORETF Mean 4.20 Wettable Powders Dermal Single layer, no gloves (A) ORETF Mean 1650 Single layer, gloves ORETF Mean 1210 Double layer, gloves (B) ORETF Mean 630 Inhalation No Respirator ORETF Mean 250 PF5 (C) ORETF Mean 50 PF10 (D) ORETF Mean 25 Water- soluble Packets Dermal Single layer, no gloves (A) ORETF Mean 1350 Single layer, gloves ORETF Mean 855 Double layer, gloves (B) ORETF Mean 458 Inhalation No Respirator ORETF Mean 18 PF5 (C) ORETF Mean 0.38 PF10 (D) ORETF Mean 0.19 Applicator, Termiticide Injection Dermal Single layer, no gloves (A) PHED "Best fit" 1300 Single layer, gloves PHED "Best fit" 360 Double layer, gloves (B) PHED "Best fit" 250 Inhalation No Respirator PHED "Best fit" 2.2 PF5 (C) PHED "Best fit" 0.44 PF10 (D) PHED "Best fit" 0.22 Animal (pet and livestock) Treatments Pour-on Dermal Single layer, no gloves (A) AHETF Mean 220 Single layer, gloves AHETF Mean 37.6 Double layer, gloves (B) AHETF Mean 29.1 Inhalation No Respirator AHETF Mean 0.219 PF5 (C) AHETF Mean 0.044 PF10 (D) AHETF Mean 0.022 Back rubber Dermal Single layer, no gloves (A) AHETF Mean 220 Single layer, gloves AHETF Mean 37.6 Double layer, gloves (B) AHETF Mean 29.1 Inhalation No Respirator AHETF Mean 0.219 PF5 (C) AHETF Mean 0.044 PF10 (D) AHETF Mean 0.022 Collar Dermal Single layer, no gloves (A) MRID 44433303 Mean 112000 Single layer, gloves MRID 44433303 Mean 67800 Double layer, gloves (B) MRID 44433303 Mean 42000 Inhalation No Respirator Page 8 of 14 ------- USEPA/ Office of Pesticide Programs / Health Effects Division Occupational Pesticide Handler Unit Exposure Surrogate Reference Table Exposure Scenario (Activity, Equipment, Formulation, Site, etc.)1 Exposure Route Personal Protective Equipment (PPE) Level2 Data Source3 Statistic Unit Exposure (Hg/lbai) PF5 (C) Applicator inhalation exposure expected to be PF10 (D) negligible. Single layer, no gloves (F) MRID 45528801 Mean 54300 Dermal Single layer, gloves (F, E) MRID 45528801 Mean 53400 Dip Double layer, gloves (G, E) MRID 45528801 Mean 25600 No Respirator MRID 45528801 Mean 26.6 Inhalation PF5 (C) MRID 45528801 Mean 5.33 PF10 (D) MRID 45528801 Mean 2.66 Single layer, no gloves (A) AHETF Mean 227 Dermal Single layer, gloves AHETF Mean 51.6 Dust bag Double layer, gloves (B) AHETF Mean 41.2 No Respirator AHETF Mean 8.96 Inhalation PF5 (C) AHETF Mean 1.79 PF10 (D) AHETF Mean 0.90 Ear tag Applicator exposure expected to be negligible; chemical-resistant gloves recommended. Single layer, no gloves (A) AHETF Mean 220 Dermal Single layer, gloves AHETF Mean 37.6 Liquids Double layer, gloves (B) AHETF Mean 29.1 No Respirator AHETF Mean 0.219 Inhalation PF5 (C) AHETF Mean 0.044 PF10 (D) AHETF Mean 0.022 Single layer, no gloves (A) AHETF Mean 227 Dermal Single layer, gloves AHETF Mean 51.6 Feed-through Dust Double layer, gloves (B) AHETF Mean 41.2 No Respirator AHETF Mean 8.96 Inhalation PF5 (C) AHETF Mean 1.79 PF10 (D) AHETF Mean 0.90 Single layer, no gloves PHED "Best fit" 8.4 Dermal Single layer, gloves PHED "Best fit" 6.9 Granules Double layer, gloves PHED "Best fit" 3.4 No Respirator PHED "Best fit" 1.7 Inhalation PF5 (C) PHED "Best fit" 0.34 PF10 (D) PHED "Best fit" 0.17 Single layer, no gloves (F) MRID 44658401 Mean 2098000 Shampoo Dermal Single layer, gloves (E, F) MRID 44658401 Mean 2052000 Double layer, gloves (E, B) MRID 44658401 Mean 1029000 Page 9 of 14 ------- USEPA/ Office of Pesticide Programs / Health Effects Division Occupational Pesticide Handler Unit Exposure Surrogate Reference Table Exposure Scenario (Activity, Equipment, Formulation, Site, etc.)1 Exposure Route Personal Protective Equipment (PPE) Level2 Data Source3 Statistic Unit Exposure (Hg/lbai) Inhalation No Respirator MRID 44658401 Mean 292 PF5 (C) MRID 44658401 Mean 58.4 PF10 (D) MRID 44658401 Mean 29.2 Sponge Dermal Single layer, no gloves (F) MRID 45528801 Mean 844000 Single layer, gloves (F, E) MRID 45528801 Mean 767000 Double layer, gloves (G, E) MRID 45528801 Mean 386000 Inhalation No Respirator MRID 45528801 Mean 208 PF5 (C) MRID 45528801 Mean 41.6 PF10 (D) MRID 45528801 Mean 20.8 Spot-on Dermal Single layer, no gloves (A) MRID 44433303 Mean 112000 Single layer, gloves MRID 44433303 Mean 67800 Double layer, gloves (B) MRID 44433303 Mean 42000 Inhalation No Respirator Applicator inhalation exposure expected to be negligible. PF5 (C) PF10 (D) Loader / applicator, Bulb duster Dermal Single layer, no gloves ORETF Mean 166000 Single layer, gloves (E) ORETF Mean 24700 Double layer, gloves (E, B) ORETF Mean 20600 Inhalation No Respirator ORETF Mean 1690 PF5 (C) ORETF Mean 338 PF10 (D) ORETF Mean 169 Loader / applicator, Cup Dermal Single layer, no gloves MRID 45333401 Mean 112 Single layer, gloves (E) MRID 45333401 Mean 11.2 Double layer, gloves (E) MRID 45333401 Mean 11.2 Inhalation No Respirator MRID 45333401 Mean 12.5 PF5 (C) MRID 45333401 Mean 2.51 PF10 (D) MRID 45333401 Mean 1.25 Loader / applicator, Spoon Dermal Single layer, no gloves (A, F) MRID 45250702 Mean 4170 Single layer, gloves (F) MRID 45250702 Mean 3030 Double layer, gloves (A, G) MRID 45250702 Mean 1580 Inhalation No Respirator MRID 45250702 Mean 121 PF5 (C) MRID 45250702 Mean 24.3 PF10 (D) MRID 45250702 Mean 12.1 Single-use Injection (gels/pastes) Applicator exposure expected to be negligible. Loader / applicator, Plunger duster Dermal Single layer, no gloves ORETF Mean 166000 Single layer, gloves (E) ORETF Mean 24700 Page 10 of 14 ------- USEPA/ Office of Pesticide Programs / Health Effects Division Occupational Pesticide Handler Unit Exposure Surrogate Reference Table Exposure Scenario (Activity, Equipment, Formulation, Site, etc.)1 Exposure Route Personal Protective Equipment (PPE) Level2 Data Source3 Statistic Unit Exposure (Hg/lbai) Double layer, gloves (E, B) ORETF Mean 20600 Inhalation No Respirator ORETF Mean 1690 PF5 (C) ORETF Mean 338 PF10 (D) ORETF Mean 169 Applicator, Total-release Fogger Applicator exposure expected to be negligible. Applicator, Tree Injection Applicator exposure expected to be negligible. Applicator, Trigger-spray Bottle All application sites, except animals Dermal Single layer, no gloves (A) ORETF Mean 3660 Single layer, gloves ORETF Mean 1800 Double layer, gloves (B) ORETF Mean 1110 Inhalation No Respirator ORETF Mean 61.2 MRID 41054701 MRID 44739301 PF5 (C) ORETF Mean 12.2 MRID 41054701 MRID 44739301 PF10 (D) ORETF Mean 6.12 MRID 41054701 MRID 44739301 Animal treatments Dermal Single layer, no gloves (F) MRID 44433302 Mean 544000 Single layer, gloves (F, E) MRID 44433302 Mean 503000 Double layer, gloves (G, E) MRID 44433302 Mean 273000 Inhalation No Respirator MRID 44433302 Mean 3300 PF5 (C) MRID 44433302 Mean 654 PF10 (D) MRID 44433302 Mean 327 Applicator, Shaker can Granules Dermal Single layer, no gloves MRID 45333401 Mean 112 Single layer, gloves (E) MRID 45333401 Mean 11.2 Double layer, gloves (E) MRID 45333401 Mean 11.2 Inhalation No Respirator MRID 45333401 Mean 12.5 PF5 (C) MRID 45333401 Mean 2.51 PF10 (D) MRID 45333401 Mean 1.25 Dusts Dermal Single layer, no gloves MRID 44439901 Mean 4042000 MRID 45519601 Single layer, gloves MRID 44439901 Mean 110000 MRID 45519601 Double layer, gloves (B) MRID 44439901 Mean 72600 MRID 45519601 Page 11 of 14 ------- USEPA/ Office of Pesticide Programs / Health Effects Division Occupational Pesticide Handler Unit Exposure Surrogate Reference Table Exposure Scenario (Activity, Equipment, Formulation, Site, etc.)1 Exposure Route Personal Protective Equipment (PPE) Level2 Data Source3 Statistic Unit Exposure (Hg/lbai) Inhalation No Respirator MRID 44439901 Mean 17500 MRID 45519601 PF5 (C) MRID 44439901 Mean 3500 MRID 45519601 PF10 (D) MRID 44439901 Mean 1750 MRID 45519601 Trap/bait station Re-fillable Dermal Single layer, no gloves (A) PHED "Best fit" 104000 Single layer, gloves PHED "Best fit" 71000 Double layer, gloves (B) PHED "Best fit" 40280 Inhalation No Respirator PHED "Best fit" 470 PF5 (C) PHED "Best fit" 94 PF10 (D) PHED "Best fit" 47 Single-use Applicator exposure expected to be negligible. 1 If the description of the scenario is silent on specific equipment, sites, formulations, etc., the data is applicable to all potential applications forthat scenario. 2 Single layer = long-sleeve shirt, long pants, shoes plus socks. Double layer = "coveralls" in addition to single layer. Exposure monitoring data representing all levels of PPE for all scenarios is unavailable. In orderto represent different PPE levels, exposure values are calculated using assumptions forthe protection afforded by additional layers of clothing, chemical-resistant gloves, or respirators. Exposure assessors should be mindful of the uncertainties that this convention introduces into the overall calculations. In all cases, estimates based on direct measurements representing the PPE-level specified are the most reliable. If a scenario uses PPE calculation assumptions, they are identified in the table with one or more of the following notations: (A) "No glove" hand exposure back-calculated from available "gloved hand" exposure data by multiplying by 10 (i.e., chemical-resistant gloves are assumed to reduce hand exposure by 90%). (B) "Double layer" body exposure calculated from available "single layer" body exposure data by dividing by 2 (i.e., an additional layer of clothing is assumed to reduce body exposure by 50%). (C) "PF5" respirator exposure calculated from available "no respirator" exposure data by dividing by 5 (i.e., a PF5 respirator is assumed to reduce inhalation exposure by 80%). (D) "PF10" respirator exposure calculated from available "no respirator" exposure data by dividing by 10 (i.e., a PF10 respirator is assumed to reduce inhalation exposure by 90%). (E) "Gloved" hand exposure calculated from available "no glove" hand exposure data by dividing by 10 (i.e., chemical-resistant gloves are assumed to reduce hand exposure by 90%). (F) "Single layer" body exposure calculated from available "total deposition" body exposure data by dividing by 2 (i.e., an additional layer of clothing is assumed to reduce body exposure by 50%). (G) "Double layer" body exposure calculated from available "total deposition" body exposure data by dividing by 4 (i.e., two layers of clothing are assumed to reduce body exposure by 75%). If a scenario does not have one ofthese notations, the data underlying the recommended values is a direct match forthe indicated level of PPE. 3 PHED = Pesticide Handler Exposure Database; AHETF = Agricultural Handler Exposure Task Force; ORETF = Outdoor Residential Exposure Task Force; MRID = Master Record Identification (#). 4 Due to the effect that the back-calculation from "gloved hands" to represent "non-gloved hands" has on distributional variability and parametric estimates, no adjustment was made to hand measurements to represent unit exposures for "single layer, no gloves". That is, the unit exposure for "single layer, gloves" is also assigned to "single layer, no gloves". Page 12 of 14 ------- Attachment 1 Documentation of Revisions Page 13 of 14 ------- Date Documentation of Revisions (as of September 2015) Apr2011 • Original version, modeled based on "PHED Surrogate Guide" • Reflects move from data from PHED to AHETF for following scenarios o Open Cab Groundboom o Open Mix/Load Liquids o Open Mix/Load Dry Flowable • Published EPA webpage on occupational pesticide handler exposure, including link to reference table May2011 • Replaced PHED values for "Closed Cab Airblast" with those from AHETF Jun2011 • Replaced PHED values for "Open Cab Airblast" with those from AHETF • Corrected unit exposure for "Mixer / Loader / Applicator, Low-pressure Handwand, Wettable Powder, Double layer, gloves" from 620 Hg/lb ai to 6200 ng/lb ai Sep2011 • Reflects overhaul of exposure scenario assignment of available surrogate data o New scenarios added (e.g., pet/animal treatments) o Scenario subsets added (e.g., power handgun site subsets) o Available individual proprietary studies assigned • Footnotes edited • Orientation changed to landscape to accommodate scenario additions Mar2012 • Corrected "Dip" and "Sponge" inhalation unit exposures to reflect use of % LOD without correction for field fortification per standard policy • Corrected "Mixing / Loading Liquids" inhalation unit exposures to 2 significant figures • Removed PPE footnote notation "(H)" since that does not apply to any scenario • Corrected PPE notations for "Spoon" scenario to reflect exposure monitoring of "total deposition with chemical-resistant gloves" • For "Mechanically-pressurized Handgun Sprayer", added "Specialty Agricultural Crops" to a sub-set category • Added "Documentation of Revisions" as an attachment Mar2013 • Aerial Applicator scenario: PHED replaced with data from the AHETF • Re-assigned MRID45773201 to drench/soil-directed applications of wettable powders only • Footnote (G) typographical correction: "100%" corrected to "75%" (unit exposures are unchanged) Sept2015 • Additional livestock treatment scenarios incorporated (backpack and mechanically-pressurized handgun) • Wildlife management incorporated into mechanically-pressurized handgun scenario • Mushroom houses incorporated into mechanically-pressurized handgun scenario and manually-pressurized handwand scenario • Granule formulations added to "animal, feed-through" scenario • Characterized Animal treatments as "Pet" or "Livestock" • Incorporated new data from AHETF for backpack applicator and mechanically-pressurized handgun applicators in rights-of-ways and other similar use patterns. • Added tree injection applicator scenario. 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