Emissions Inventory Technical Memorandum 6 Final - MARAMA

I. INTRODUCTIONThis is the sixth and final technical memorandum TM for the Mid-Atlantic – Northeast VisibilityUnion’s (MANE-VU’s) Residential Wood Combustion (RWC) Emission Inventory Project.This memorandum contains a description of the methods used to construct the emissioninventory for MANE-VU. Section 2 of this memorandum contains a description of the datasources, while Section 3 provides summaries and figures showing the 2002 emission inventoryresults. As part of the summary provided in Section 3, a comparison to emission estimates in theEnvironmental Protection Agency’s (EPA’s) National Emission Inventory (NEI) is presented.This MANE-VU RWC inventory includes emission estimates for indoor wood-burningequipment (e.g. fireplaces, woodstoves, pellet stoves, furnaces/boilers) and outdoor woodburningequipment (e.g. outdoor fireplaces, fire pits, wood-fired barbecues, chimineas). This isthe first known emission inventory effort to include emission estimates for outdoor woodburningequipment. Emission estimates for all criteria pollutants/precursors and many toxic airpollutants (TAPs) are included.II.DATA SOURCESThe data sources used to construct the inventory include census tract-level housing data from the2000 census. At the census tract-level, housing units are broken out into two categories: singlefamilyunits (including both detached and attached units up to two units) and multi-family units(all other housing units, including mobile homes). In previous technical memoranda, Pechandescribed the development of these data and the methods used to designate MANE-VU censustracts into one of three categories: urban, suburban, and rural. The rural category was furtherbroken out into forested and non-forested categories.Technical Memorandum #5 included the results of the survey and a description of the methodsused to reduce the survey data and perform statistical analysis. The results of that work includedtwo emissions models: one for indoor equipment; and one for outdoor equipment. To developestimates of mass of wood consumed for each survey response, a conversion factor of 0.47cord/ton of wood was used.For the indoor equipment, Table 1 provides the inputs to the emissions model. In this table, eachpollutant has a separate set of emission factors in units of pounds per household per year(lb/household-yr). The mean value in Table 1 is the emission factor assigned to each geographiccategory. Indoor equipment TAP emission factors are provided in Appendix A. The 95%confidence interval is also shown with the emission factors in Table 1 and Appendix A. Notethat, in reality, the lower bound can not be less than zero (therefore, the lower bound for negativevalues should be interpreted as zero).3

Table 1. Indoor Equipment Emission Factors (lb/household-yr)95% Confidence IntervalPollutant Category Mean Lower Bound Upper Bound Std. Deviation NPM 2.5Intercept (SFH,URBAN, All HDDZones) 1.863 -10.635 14.362 7.830 209Other, RNF/S/U, All HDD Zones 1.912 -14.480 14.577 17.090 595Other, RF, All HDD Zones 5.980 -14.123 22.357 32.871 185Single, S, Low HDD Zone 18.140 -7.926 40.480 57.556 76Single, RNF, Low HDD Zone 19.453 -3.273 38.452 53.975 117Single, RF, Low HDD Zone 46.677 25.478 64.149 107.357 150Single, S, Med HDD Zone 39.112 12.023 62.475 116.623 68Single, RNF, Med HDD Zone 24.536 0.066 45.280 77.561 92Single, RF, Med HDD Zone 54.684 29.673 75.969 163.524 86Single, S, High HDD Zone 20.699 -7.459 45.131 62.227 61Single, RNF, High HDD Zone 71.836 46.919 93.027 161.500 87Single, RF, High HDD Zone 82.805 62.157 99.727 206.879 16623.344 . . 95.820 1892PM 10Intercept (SFH,URBAN, All HDDZones) 1.863 -10.635 14.362 7.830 209Other, RNF/S/U, All HDD Zones 1.912 -14.480 14.577 17.090 595Other, RF, All HDD Zones 5.980 -14.123 22.357 32.871 185Single, S, Low HDD Zone 18.140 -7.926 40.480 57.556 76Single, RNF, Low HDD Zone 19.453 -3.273 38.452 53.975 117Single, RF, Low HDD Zone 46.677 25.478 64.149 107.357 150Single, S, Med HDD Zone 39.112 12.023 62.475 116.623 68Single, RNF, Med HDD Zone 24.536 0.066 45.280 77.561 92Single, RF, Med HDD Zone 54.684 29.673 75.969 163.524 86Single, S, High HDD Zone 20.699 -7.459 45.131 62.227 61Single, RNF, High HDD Zone 71.836 46.919 93.027 161.500 87Single, RF, High HDD Zone 82.805 62.157 99.727 206.879 16623.344 . . 95.820 1892NO xIntercept (SFH,URBAN, All HDDZones) 0.152 -1.073 1.376 0.639 209Other, RNF/S/U, All HDD Zones 0.276 -1.299 1.549 3.356 595Other, RF, All HDD Zones 0.509 -1.430 2.145 2.712 185Single, S, Low HDD Zone 1.572 -0.951 3.792 4.971 764

Table 1. Indoor Equipment Emission Factors (lb/household-yr)95% Confidence IntervalPollutant Category Mean Lower Bound Upper Bound Std. Deviation NSingle, RNF, Low HDD Zone 2.273 0.077 4.166 7.792 117Single, RF, Low HDD Zone 4.038 1.992 5.781 9.087 150Single, S, Med HDD Zone 3.511 0.888 5.832 9.981 68Single, RNF, Med HDD Zone 2.864 0.497 4.928 8.237 92Single, RF, Med HDD Zone 5.356 2.936 7.473 15.127 86Single, S, High HDD Zone 2.073 -0.655 4.499 6.075 61Single, RNF, High HDD Zone 6.451 4.041 8.559 14.446 87Single, RF, High HDD Zone 8.520 6.528 10.210 20.809 1662.297 . . 9.386 1892COIntercept (SFH,URBAN, All HDDZones) 13.761 -86.259 113.780 57.723 209Other, RNF/S/U, All HDD Zones 14.187 -115.839 116.692 126.553 595Other, RF, All HDD Zones 44.499 -115.225 176.702 243.186 185Single, S, Low HDD Zone 134.250 -73.196 314.176 428.922 76Single, RNF, Low HDD Zone 145.743 -34.972 298.937 402.824 117Single, RF, Low HDD Zone 352.646 184.152 493.619 806.336 150Single, S, Med HDD Zone 290.967 75.338 479.074 867.362 68Single, RNF, Med HDD Zone 182.919 -11.756 350.072 574.028 92Single, RF, Med HDD Zone 426.818 227.814 598.302 1343.505 86Single, S, High HDD Zone 162.455 -61.732 359.120 486.077 61Single, RNF, High HDD Zone 544.872 346.623 715.599 1222.675 87Single, RF, High HDD Zone 664.008 499.918 800.577 1731.650 166180.000 . . 765.732 1892VOCIntercept (SFH,URBAN, All HDDZones) 10.994 -60.627 82.616 49.380 209Other, RNF/S/U, All HDD Zones 9.777 -84.473 82.038 89.833 595Other, RF, All HDD Zones 28.299 -87.217 121.826 173.526 185Single, S, Low HDD Zone 86.996 -62.693 214.696 247.850 76Single, RNF, Low HDD Zone 78.111 -52.436 186.669 240.004 117Single, RF, Low HDD Zone 198.826 77.030 298.633 498.159 150Single, S, Med HDD Zone 185.070 29.523 318.629 546.119 68Single, RNF, Med HDD Zone 109.395 -31.148 227.949 399.030 92Single, RF, Med HDD Zone 242.202 98.558 363.857 969.969 865

Table 1. Indoor Equipment Emission Factors (lb/household-yr)95% Confidence IntervalPollutant Category Mean Lower Bound Upper Bound Std. Deviation NSingle, S, High HDD Zone 75.764 -85.912 215.451 292.378 61Single, RNF, High HDD Zone 254.039 110.937 375.153 668.171 87Single, RF, High HDD Zone 410.396 291.754 507.049 1363.884 166104.256 . . 540.915 1892SO 2Intercept (SFH,URBAN, All HDDZones) 0.024 -0.148 0.197 0.106 209Other, RNF/S/U, All HDD Zones 0.027 -0.198 0.203 0.227 595Other, RF, All HDD Zones 0.080 -0.196 0.308 0.421 185Single, S, Low HDD Zone 0.226 -0.133 0.536 0.722 76Single, RNF, Low HDD Zone 0.280 -0.033 0.544 0.727 117Single, RF, Low HDD Zone 0.616 0.324 0.859 1.355 150Single, S, Med HDD Zone 0.526 0.153 0.850 1.547 68Single, RNF, Med HDD Zone 0.340 0.004 0.628 0.970 92Single, RF, Med HDD Zone 0.790 0.446 1.086 2.254 86Single, S, High HDD Zone 0.356 -0.032 0.694 1.043 61Single, RNF, High HDD Zone 0.992 0.649 1.286 2.228 87Single, RF, High HDD Zone 1.211 0.927 1.446 2.948 1660.329 . . 1.327 1892NH 3Intercept (SFH,URBAN, All HDDZones) 0.098 -0.622 0.819 0.412 209Other, RNF/S/U, All HDD Zones 0.102 -0.834 0.841 0.915 595Other, RF, All HDD Zones 0.321 -0.829 1.274 1.752 185Single, S, Low HDD Zone 0.969 -0.525 2.266 3.122 76Single, RNF, Low HDD Zone 1.056 -0.245 2.160 2.929 117Single, RF, Low HDD Zone 2.553 1.340 3.569 5.841 150Single, S, Med HDD Zone 2.097 0.544 3.453 6.262 68Single, RNF, Med HDD Zone 1.322 -0.080 2.527 4.146 92Single, RF, Med HDD Zone 3.086 1.653 4.322 9.670 86Single, S, High HDD Zone 1.175 -0.440 2.593 3.512 61Single, RNF, High HDD Zone 3.960 2.533 5.191 8.886 87Single, RF, High HDD Zone 4.791 3.609 5.775 12.423 1661.301 . . 5.518 18926

For estimating outdoor wood-burning equipment, Pechan used the variables documented inTM#5. These values include the user fraction (UF) and annual consumption (AC; in units ofcords/year). The values of these variables are shown in Table 2 below. Emission factors forfireplaces (documented in TM#5) were applied to estimate census tract-level emissions.III. RESULTSState-level criteria pollutant emission estimates for indoor equipment in 2002 are provided inTable 3 below. Table 4 provides similar emission estimates for outdoor equipment. Tables 5and 6 provide state-level summaries for selected toxic air pollutants (TAPs) for indoor andoutdoor equipment, respectively.Table 7 provides a comparison of PM 2.5 emissions between the results of this project and the2002 National Emissions Inventory (NEI). As shown in this table, the total annual PM 2.5emission estimates for the region were 161,497 tons (slightly different from the total derivedfrom the state-level summaries due to different rounding of the emission factors used in creatingthese summaries). Based on the 95% confidence interval, the lower bound estimate is 79,431tons and the upper bound is 361,276 tons. These NEI estimate is 77,393 tons (these estimateswere recently revised due to problems found with the fireplace emissions).It is not surprising that the MANE-VU estimates are higher since more equipment types areincluded. The NEI estimates are derived from national estimates of the population ofwoodstoves and fireplaces and assumptions regarding the usage of these equipment. TheMANE-VU inventory also includes emissions from pellet stoves, boilers, and furnaces.Regional differences in wood consumption activity may also play a role in the differentestimates. Pechan will provide a more detailed discussion of the differences between theMANE-VU and NEI methods and results in the final report.It is interesting to note some of the differences shown at the county level. These are shown nearthe top of Table 7 where the state and county codes are colored. Pechan reviewed the censustract data and assigned classifications to a number of counties in the MANE-VU region thatcould be categorized as primarily urban (red), suburban (yellow), or rural (green). Overall, forthe urban counties, the MANE-VU estimates tend to be lower than the NEI (25% lower onaverage). For suburban and rural areas, the MANE-VU estimates are higher than the NEI (70%and 75%, respectively). A contributor to these differences is the allocation methods used toconstruct the NEI. The NEI allocation is based on the number of county-level single-familyhomes. For MANE-VU, the estimates are calculated at the census tract level using data for bothsingle and multi-family units. Additional county names are provided in the comments columnlater in the table where large differences were found between the NEI and MANE-VU estimates.Another interesting result shown with the county-level data is that for urban counties, the NEIestimates tend to fall within the 95% confidence interval estimated from this study. For ruralcounties, the NEI estimates are lower than the lower bound estimates from this study. Insuburban counties, the NEI estimates also tend to fall under the lower bound estimates for thisstudy. Although it is difficult to directly compare a top-down method like that used to constructthe NEI with the MANE-VU method based on survey results, Pechan feels that the main7

contributing factors to these differences are more equipment types being included in the MANE-VU study, as well as the allocation methods used to derive the NEI estimates.Maps of PM 2.5 emissions are provided in Appendix B. The first set (Figures 1 through 5) areannual census tract level emissions maps for indoor equipment. The next two sets of maps(Figures 6 through 15) show emission density plots (tons PM 2.5 /mile 2 ) for indoor and outdoorequipment, respectively. These emission density plots provide a much clearer picture of wherethe RWC emissions are occurring and at what levels. For example, while the amount of woodconsumed per household in rural areas is much higher, the much higher numbers of householdsin urban to suburban areas drive the emission rates in those areas. For outdoor equipment,emissions are even more closely tied to these urbanized areas. Figure 16 is a PM 2.5 emissiondensity plot of the entire MANE-VU region for indoor wood-burning equipment.8

Table 4. 2002 RWC Criteria Pollutant Emissions from Outdoor Equipment (tons/yr)FIPSST CO VOC PM 10 PM 2.5 NO x SO 2 NH 3Connecticut 3,840 3,482 526 526 40 6.1 27Delaware 931 844 127 127 10 1.5 6.6District of Columbia 597 542 82 82 6.1 0.9 4.3Maine 2,868 2,600 393 393 30 4.5 20Maryland 5,706 5,173 782 782 59 9.0 41Massachusetts 7,067 6,407 968 968 73 11 50New Hampshire 2,214 2,007 303 303 23 3.5 16New Jersey 8,113 7,355 1,111 1,111 84 13 58New York 21,527 19,516 2,949 2,949 222 34 153Pennsylvania 15,853 14,372 2,172 2,172 163 25 113Rhode Island 1,129 1,023 155 155 12 1.8 8.0Vermont 1,285 1,165 176 176 13 2.0 9.2Totals 71,129 64,484 9,743 9,743 732 113 507Table 5. 2002 Selected RWC TAP Emissions from Indoor Equipment (tons/yr)StateToxic Air Pollutant a1,3-Butadiene 2,3,7,8-TCDD PCB Acetaldehyde Formaldehyde 16-PAH T-PAH Benzene Toluene o-Xylene m,p-XylenesConnecticut 56 5.65E-08 5.36E-03 316 281 211 208 280 219 63 34Delaware 6.5 6.50E-09 6.79E-04 41 37 28 28 32 28 8.1 4.3District of Columbia 1.5 1.52E-09 1.51E-04 9.0 8.1 6.1 6.2 7.5 6.3 1.8 1.0Maine 89 8.97E-08 8.57E-03 506 451 339 323 444 351 102 55Maryland 43 4.32E-08 4.56E-03 274 251 188 188 214 191 54 29Massachusetts 92 9.25E-08 8.64E-03 508 450 338 335 458 352 102 55New Hampshire 57 5.78E-08 5.38E-03 316 279 210 200 286 218 64 35New Jersey 55 5.48E-08 5.50E-03 328 296 222 221 272 228 65 35New York 292 2.94E-07 2.78E-02 1639 1457 1094 1056 1454 1135 329 178Pennsylvania 262 2.63E-07 2.55E-02 1513 1355 1016 992 1305 1050 303 163Rhode Island 14 1.38E-08 1.35E-03 80 72 54 53 68 56 16 9Vermont 41 4.16E-08 3.98E-03 235 210 157 149 206 163 47 25Totals 1,009 1.02E-06 9.75E-02 5,765 5,147 3,862 3,759 5,027 3,998 1,155 624aTCDD – tetrachlorodibenzo-p-dioxin; PCB – polychlorinated biphenyls; 16 – PAH – 16 commonly-measured polycyclic aromatic hydrocarbon compounds; T-PAH – total PAH.10

Table 6. 2002 Selected RWC TAP Emissions from Outdoor Equipment (tons/yr)StateToxic Air Pollutant a1,3-Butadiene 2,3,7,8-TCDD PCB Acetaldehyde Formaldehyde 16-PAH T-PAH Benzene Toluene o-Xylene m,p-XylenesConnecticut 2.0 2.02E-09 2.54E-04 16 15 11 11 10 11 3.0 1.6Delaware 0.5 4.90E-10 6.15E-05 3.8 3.6 2.7 2.7 2.4 2.7 0.7 0.4District of Columbia 0.3 3.15E-10 3.95E-05 2.4 2.3 1.7 1.7 1.6 1.7 0.5 0.2Maine 1.5 1.51E-09 1.90E-04 12 11 8.3 8.3 7.5 8.3 2.3 1.2Maryland 3.0 3.00E-09 3.77E-04 23 22 16 16 15 16 4.5 2.3Massachusetts 3.7 3.72E-09 4.67E-04 29 27 20 20 18 20 5.6 2.9New Hampshire 1.2 1.17E-09 1.46E-04 9.0 8.6 6.4 6.4 5.8 6.4 1.8 0.9New Jersey 4.3 4.27E-09 5.36E-04 33 31 23 23 21 23 6.4 3.3New York 11 1.13E-08 1.42E-03 88 84 62 62 56 62 17 8.9Pennsylvania 8.3 8.35E-09 1.05E-03 65 62 46 46 41 46 13 6.5Rhode Island 0.6 5.94E-10 7.46E-05 4.6 4.4 3.3 3.3 2.9 3.3 0.9 0.5Vermont 0.7 6.77E-10 8.49E-05 5.2 5.0 3.7 3.7 3.4 3.7 1.0 0.5Totals 37 3.75E-08 4.70E-03 290 276 206 206 186 206 56 29aTCDD – tetrachlorodibenzo-p-dioxin; PCB – polychlorinated biphenyls; 16 – PAH – 16 commonly-measured polycyclic aromatic hydrocarbon compounds; T-PAH – total PAH.11

Table 7. Comparison of 2002 MANE-VU and NEI PM 2.5 Emission Estimates (tons)FIPSST FIPSCNTY LowerBoundMANE-VU EmissionsModelEstimateUpperBoundNEI(4/2004 Rev.)% Difference CommentAvg. urbanized counties = -25%;Fairfield Co., CT09 001 373 1,180 3,701 453 6209 003 398 1,256 3,955 938 25 Hartford Co.09 009 478 1,511 4,183 412 73 New Haven Co.10 003 - 421 1,910 307 27 New Castle Co., DE11 001 - 261 2,215 172 34 District of Columbia24 003 85 481 1,855 667 -39 Anne Arundel Co., MD24 005 207 1,024 2,991 1,056 -3 Baltimore Co.24 031 54 566 2,950 954 -69 Montgomery Co.24 033 71 574 2,755 846 -47 Prince George’s Co.25 025 - 278 2,359 88 68 Suffolk Co., MA34 013 15 326 2,418 500 -53 Essex Co., NJ34 017 - 228 1,948 143 37 Hudson Co.34 021 43 368 1,400 367 0 Mercer Co.34 023 15 388 2,300 819 -111 Middlesex Co.34 025 37 542 2,314 897 -66 Monmouth Co.34 027 318 914 2,301 585 36 Morris Co.34 029 - 691 2,633 1,041 -51 Ocean Co.34 031 176 528 1,792 167 68 Passaic Co.34 035 270 819 1,806 328 60 Somerset Co.34 039 - 182 1,477 600 -231 Union Co.36 001 278 608 1,612 621 -2 Albany Co., NY36 005 - 466 3,994 234 50 Bronx Co.36 029 677 1,665 4,820 2,214 -33 Erie Co.36 047 - 885 7,585 387 56 Kings Co.36 055 448 1,203 3,519 1,831 -52 Monroe Co.36 059 - 492 3,501 3,415 -594 Nassau Co.36 061 - 759 6,541 19 97 New York Co.36 067 601 1,201 2,752 1,160 3 Onondaga Co.36 081 - 774 6,523 1,417 -83 Queens Co.36 085 - 155 1,288 456 -194 Richmond Co.36 119 293 989 3,564 1,290 -30 Westchester Co.12

Table 7. Comparison of 2002 MANE-VU and NEI PM 2.5 Emission Estimates (tons)FIPSST FIPSCNTYMANE-VU EmissionsNEILower Model Upper(4/2004 Rev.)Bound Estimate Bound% Difference Comment42 003 149 1,067 5,166 818 23 Allegheny Co., PA42 017 408 1,060 2,785 700 34 Bucks Co.42 045 - 269 1,792 533 -98 Delaware Co.42 101 - 629 5,373 311 50 Philadelphia Co.44 001 14 56 199 31 45 Bristol Co., RIavg suburban counties = 70%;Sussex Co., DE10 005 - 551 1,449 202 6324 001 177 449 802 132 71 Allegany Co., MD24 009 123 356 653 136 62 Calvert Co.24 047 14 213 637 103 52 Worcester Co.25 019 38 135 241 39 71 Nantucket Co., MA36 013 613 1,067 1,726 347 68 Chatauqua Co., NY36 023 200 331 528 114 65 Cortland Co.36 057 136 269 489 98 64 Montgomery Co.42 037 325 523 800 90 83 Columbia Co., PA42 093 44 107 186 24 77 Montour Co.42 097 224 522 951 112 79 Northumberland Co.42 107 419 832 1,492 79 91 Schuylkill Co.avg rural counties = 75%;Aroostook Co., ME23 003 580 762 1,257 260 6623 007 389 533 713 132 75 Cumberland Co.23 009 761 1,047 1,380 262 75 Hancock Co.23 015 500 680 884 162 76 Lincoln Co.23 017 679 920 1,223 220 76 Oxford Co.23 021 365 479 607 110 77 Piscataquis Co.23 025 506 714 985 191 73 Somerset Co.24 023 154 290 456 61 79 Garrett Co., MD24 029 - 72 166 41 44 Kent Co.33 003 842 1,114 1,437 253 77 Carroll Co., NH36 003 485 660 887 157 76 Allegany Co., NY36 041 208 273 347 62 77 Hamilton Co.42 053 218 287 367 65 77 Forest Co., PA42 057 77 138 212 23 83 Fulton Co.42 103 825 1,117 1,450 135 88 Pike Co.13

Table 7. Comparison of 2002 MANE-VU and NEI PM 2.5 Emission Estimates (tons)FIPSST FIPSCNTYMANE-VU EmissionsNEILower Model Upper(4/2004 Rev.)Bound Estimate Bound% Difference Comment42 105 297 392 505 89 77 Potter Co.42 113 155 204 259 46 77 Sullivan Co.50 009 119 157 201 36 77 Essex Co., VT50 013 91 135 185 36 73 Grand Isle Co.50 015 241 322 424 72 78 Lamoille Co.50 017 326 431 556 98 77 Orange Co.09 005 804 1,384 2,171 278 8009 007 342 824 1,489 227 7209 011 580 1,312 2,376 345 7409 013 459 799 1,304 83 9009 015 435 743 1,177 137 8210 001 - 249 709 596 -140 Kent Co., DE23 001 338 567 982 198 6523 005 1,178 1,843 2,946 743 6023 011 830 1,216 1,756 348 7123 013 336 517 743 157 7023 019 791 1,209 1,839 394 6723 023 212 339 509 108 6823 027 385 528 707 132 7523 029 469 648 861 162 7523 031 1,202 1,844 2,754 612 6724 011 - 91 214 52 4324 013 90 471 1,019 236 5024 015 109 346 685 135 6124 017 132 370 767 174 5324 019 - 106 251 60 4424 021 232 642 1,317 265 5924 025 183 523 1,224 285 4524 027 131 341 1,024 291 1524 035 - 134 308 77 4224 037 132 380 712 137 6424 039 - 68 166 38 4424 041 - 125 291 71 4314

Table 7. Comparison of 2002 MANE-VU and NEI PM 2.5 Emission Estimates (tons)FIPSST FIPSCNTYMANE-VU EmissionsNEILower Model Upper(4/2004 Rev.)Bound Estimate Bound% Difference Comment24 043 125 392 867 179 5424 045 - 201 526 140 3125 001 538 1,630 3,090 590 6425 003 476 853 1,477 200 7725 005 515 1,423 3,263 252 8225 007 48 210 379 65 6925 009 237 940 3,120 339 6425 011 397 616 927 46 9225 013 294 833 2,316 232 7225 015 357 683 1,238 172 7525 017 337 1,593 5,937 1,365 1425 021 379 1,244 3,281 734 4125 023 559 1,569 3,209 630 6025 027 1,257 2,466 5,016 812 6733 001 449 690 1,012 220 6833 005 501 730 1,038 209 7133 007 292 427 614 121 7233 009 691 988 1,404 258 7433 011 692 1,329 2,627 695 4833 013 708 1,083 1,625 338 6933 015 660 1,315 2,401 701 4733 017 350 556 949 207 6333 019 249 389 588 128 6734 001 44 405 1,327 365 1034 003 24 383 2,678 425 -1134 005 - 454 1,724 581 -2834 007 - 229 1,594 614 -168 Camden Co., NJ34 009 - 251 975 262 -434 011 - 243 717 201 1834 015 19 320 1,077 386 -2034 019 379 751 1,215 164 7834 033 - 151 393 106 3034 037 592 961 1,495 221 7715

Table 7. Comparison of 2002 MANE-VU and NEI PM 2.5 Emission Estimates (tons)FIPSST FIPSCNTYMANE-VU EmissionsNEILower Model Upper(4/2004 Rev.)Bound Estimate Bound% Difference Comment34 041 241 529 933 132 7536 007 437 819 1,590 502 3936 009 584 867 1,254 250 7136 011 462 711 1,060 217 6936 015 255 435 765 239 4536 017 411 571 793 138 7636 019 472 688 1,001 189 7336 021 504 726 1,020 204 7236 025 530 744 1,020 195 7436 027 726 1,305 2,256 661 4936 031 478 657 878 167 7536 033 302 482 725 162 6636 035 391 578 842 144 7536 037 319 503 749 159 6836 039 523 717 967 176 7636 043 420 643 957 202 6936 045 625 975 1,495 293 7036 049 353 468 607 106 7736 051 291 477 725 160 6636 053 450 658 937 189 7136 063 499 912 1,731 502 4536 065 838 1,338 2,242 491 6336 069 516 808 1,225 267 6736 071 645 1,344 2,466 735 4536 073 269 400 572 115 7136 075 749 1,114 1,626 323 7136 077 538 741 1,008 182 7536 079 219 505 866 267 4736 083 393 723 1,325 352 5136 087 39 189 852 561 -197 Rockland Co., NY36 089 720 1,083 1,574 327 7036 091 642 1,114 1,917 505 5536 093 114 249 725 374 -5016

Table 7. Comparison of 2002 MANE-VU and NEI PM 2.5 Emission Estimates (tons)FIPSST FIPSCNTYMANE-VU EmissionsNEILower Model Upper(4/2004 Rev.)Bound Estimate Bound% Difference Comment36 095 311 428 577 106 7536 097 167 234 322 60 7436 099 148 263 419 98 6336 101 597 918 1,371 286 6936 103 403 1,874 5,747 4,097 -119 Suffolk Co., NY36 105 818 1,149 1,577 290 7536 107 356 499 697 139 7236 109 294 486 833 184 6236 111 946 1,437 2,155 510 6536 113 467 674 987 236 6536 115 468 655 905 187 7236 117 622 921 1,308 265 7136 121 229 362 535 121 6636 123 226 323 442 87 7342 001 171 434 782 125 7142 005 303 601 951 117 8142 007 245 613 1,284 276 5542 009 218 428 677 83 8142 011 597 1,393 2,744 395 7242 013 307 565 1,046 87 8542 015 454 662 941 94 8642 019 491 1,063 1,802 234 7842 021 532 927 1,551 227 7642 023 82 116 160 31 7342 025 292 508 806 43 9142 027 375 714 1,225 146 8042 029 228 919 2,334 492 4642 031 372 522 709 67 8742 033 384 688 1,093 271 6142 035 161 321 515 61 8142 039 633 946 1,366 142 8542 041 77 433 1,171 258 4142 043 134 490 1,392 265 4617

Table 7. Comparison of 2002 MANE-VU and NEI PM 2.5 Emission Estimates (tons)FIPSST FIPSCNTYMANE-VU EmissionsNEILower Model Upper(4/2004 Rev.)Bound Estimate Bound% Difference Comment42 047 242 390 580 118 7042 049 518 908 1,821 166 8242 051 404 887 1,546 217 7642 055 178 598 1,154 175 7142 059 112 232 394 55 7642 061 244 435 661 75 8342 063 342 657 1,047 121 8242 065 392 568 788 81 8642 067 117 211 320 36 8342 069 398 795 1,616 130 8442 071 220 1,035 2,616 563 4642 073 259 599 1,019 144 7642 075 142 409 855 137 6742 077 238 689 1,737 139 8042 079 621 1,162 2,361 200 8342 081 318 645 1,136 168 7442 083 346 515 732 156 7042 085 646 939 1,384 83 9142 087 163 339 558 66 8142 089 666 1,341 2,107 270 8042 091 226 792 2,938 806 -242 095 244 709 1,613 140 8042 099 202 376 582 66 8242 109 148 287 449 53 8142 111 398 683 1,046 125 8242 115 424 585 791 154 7442 117 374 521 711 134 7442 119 88 217 373 50 7742 121 399 607 878 96 8442 123 359 534 762 81 8542 125 356 865 1,665 308 6442 127 727 970 1,253 231 7642 129 740 1,752 3,262 580 6718

Table 7. Comparison of 2002 MANE-VU and NEI PM 2.5 Emission Estimates (tons)FIPSST FIPSCNTYMANE-VU EmissionsNEILower Model Upper(4/2004 Rev.)Bound Estimate Bound% Difference Comment42 131 256 352 473 88 7542 133 139 928 2,340 552 4044 003 84 233 738 109 5344 005 111 313 663 118 6244 007 421 982 2,874 251 7444 009 307 737 1,305 99 8750 001 330 447 591 109 7650 003 355 497 681 129 7450 005 241 345 485 95 7250 007 342 608 1,125 316 4850 011 325 467 652 131 7250 019 305 417 556 104 7550 021 499 722 1,031 199 7250 023 262 447 723 163 6350 025 490 676 928 167 7550 027 566 794 1,095 204 74Totals 79,431 161,497 361,276 77,393FIPS states and counties that are primarily urban are shown in red, primarily suburban in yellow, and primarily rural in green.19

APPENDIX A. INDOOR EQUIPMENT TAP EMISSION FACTORSPollutant Category Mean Lower Bound Upper Bound Standard Deviation NBenzene Intercept (SFH,URBAN, All HDD Zones) 0.052 -0.305 0.409 0.281 209Other, RNF/S/U, All HDD Zones 0.055 -0.412 0.418 0.501 595Other, RF, All HDD Zones 0.170 -0.404 0.639 0.918 185Single, S, Low HDD Zone 0.396 -0.348 1.035 1.209 76Single, RNF, Low HDD Zone 0.621 -0.028 1.164 1.658 117Single, RF, Low HDD Zone 1.174 0.569 1.674 2.461 150Single, S, Med HDD Zone 1.099 0.326 1.768 3.366 68Single, RNF, Med HDD Zone 0.712 0.014 1.306 1.890 92Single, RF, Med HDD Zone 1.704 0.990 2.313 4.351 86Single, S, High HDD Zone 1.008 0.205 1.707 3.196 61Single, RNF, High HDD Zone 2.027 1.316 2.633 4.894 87Single, RF, High HDD Zone 2.547 1.958 3.031 6.034 1660.688 . . 2.748 1892Cadmium Intercept (SFH,URBAN, All HDD Zones) 1.49E-06 -8.72E-06 1.17E-05 6.92E-06 209Other, RNF/S/U, All HDD Zones 1.60E-06 -1.18E-05 1.20E-05 1.37E-05 595Other, RF, All HDD Zones 4.86E-06 -1.15E-05 1.83E-05 2.53E-05 185Single, S, Low HDD Zone 1.27E-05 -8.57E-06 3.10E-05 3.99E-05 76Single, RNF, Low HDD Zone 1.73E-05 -1.25E-06 3.28E-05 4.44E-05 117Single, RF, Low HDD Zone 3.57E-05 1.85E-05 5.00E-05 7.65E-05 150Single, S, Med HDD Zone 3.17E-05 9.56E-06 5.08E-05 9.37E-05 68Single, RNF, Med HDD Zone 2.05E-05 5.44E-07 3.75E-05 5.59E-05 92Single, RF, Med HDD Zone 4.82E-05 2.78E-05 6.56E-05 1.30E-04 86Single, S, High HDD Zone 2.45E-05 1.58E-06 4.45E-05 7.38E-05 61Single, RNF, High HDD Zone 5.92E-05 3.89E-05 7.65E-05 1.35E-04 87Single, RF, High HDD Zone 7.31E-05 5.63E-05 8.70E-05 1.74E-04 1661.98E-05 . . 7.86E-05 1892Manganese Intercept (SFH,URBAN, All HDD Zones) 1.05E-05 -6.34E-05 8.45E-05 4.59E-05 209Other, RNF/S/U, All HDD Zones 1.15E-05 -8.50E-05 8.69E-05 9.73E-05 595Other, RF, All HDD Zones 3.46E-05 -8.38E-05 1.32E-04 1.81E-04 185Single, S, Low HDD Zone 9.62E-05 -5.75E-05 2.29E-04 3.07E-04 76Single, RNF, Low HDD Zone 1.21E-04 -1.32E-05 2.34E-04 3.13E-04 117Single, RF, Low HDD Zone 2.63E-04 1.39E-04 3.67E-04 5.77E-04 150Single, S, Med HDD Zone 2.26E-04 6.62E-05 3.65E-04 6.65E-04 68A-1

Pollutant Category Mean Lower Bound Upper Bound Standard Deviation NSingle, RNF, Med HDD Zone 1.46E-04 1.99E-06 2.69E-04 4.14E-04 92Single, RF, Med HDD Zone 3.40E-04 1.93E-04 4.67E-04 9.62E-04 86Single, S, High HDD Zone 1.56E-04 -1.04E-05 3.01E-04 4.57E-04 61Single, RNF, High HDD Zone 4.26E-04 2.79E-04 5.52E-04 9.58E-04 87Single, RF, High HDD Zone 5.21E-04 3.99E-04 6.21E-04 1.26E-03 1661.41E-04 . . 5.69E-04 1892Methyl Ethyl Ketone Intercept (SFH,URBAN, All HDD Zones) 0.015 -0.101 0.131 0.063 209Other, RNF/S/U, All HDD Zones 0.017 -0.133 0.136 0.151 595Other, RF, All HDD Zones 0.049 -0.135 0.203 0.282 185Single, S, Low HDD Zone 0.158 -0.081 0.367 0.522 76Single, RNF, Low HDD Zone 0.164 -0.044 0.342 0.482 117Single, RF, Low HDD Zone 0.408 0.214 0.572 0.967 150Single, S, Med HDD Zone 0.324 0.075 0.543 0.989 68Single, RNF, Med HDD Zone 0.209 -0.015 0.404 0.682 92Single, RF, Med HDD Zone 0.474 0.245 0.674 1.573 86Single, S, High HDD Zone 0.153 -0.105 0.382 0.502 61Single, RNF, High HDD Zone 0.623 0.395 0.822 1.417 87Single, RF, High HDD Zone 0.743 0.554 0.902 1.981 1660.203 . . 0.885 1892Nickel Intercept (SFH,URBAN, All HDD Zones) 8.18E-07 -5.07E-06 6.70E-06 3.46E-06 209Other, RNF/S/U, All HDD Zones 8.98E-07 -6.76E-06 6.92E-06 7.68E-06 595Other, RF, All HDD Zones 2.69E-06 -6.71E-06 1.05E-05 1.43E-05 185Single, S, Low HDD Zone 7.83E-06 -4.38E-06 1.84E-05 2.52E-05 76Single, RNF, Low HDD Zone 9.29E-06 -1.35E-06 1.83E-05 2.46E-05 117Single, RF, Low HDD Zone 2.11E-05 1.11E-05 2.93E-05 4.71E-05 150Single, S, Med HDD Zone 1.77E-05 4.96E-06 2.87E-05 5.21E-05 68Single, RNF, Med HDD Zone 1.14E-05 -3.53E-08 2.12E-05 3.35E-05 92Single, RF, Med HDD Zone 2.64E-05 1.47E-05 3.65E-05 7.77E-05 86Single, S, High HDD Zone 1.11E-05 -2.11E-06 2.26E-05 3.25E-05 61Single, RNF, High HDD Zone 3.35E-05 2.18E-05 4.35E-05 7.49E-05 87Single, RF, High HDD Zone 4.06E-05 3.10E-05 4.87E-05 1.01E-04 1661.10E-05 . . 4.52E-05 1892Phenol Intercept (SFH,URBAN, All HDD Zones) 0.034 -0.219 0.287 0.141 209Other, RNF/S/U, All HDD Zones 0.037 -0.290 0.298 0.329 595Other, RF, All HDD Zones 0.112 -0.291 0.447 0.614 185A-2

Pollutant Category Mean Lower Bound Upper Bound Standard Deviation NSingle, S, Low HDD Zone 0.343 -0.181 0.799 1.120 76Single, RNF, Low HDD Zone 0.378 -0.078 0.766 1.049 117Single, RF, Low HDD Zone 0.901 0.476 1.258 2.077 150Single, S, Med HDD Zone 0.733 0.189 1.210 2.194 68Single, RNF, Med HDD Zone 0.474 -0.017 0.898 1.467 92Single, RF, Med HDD Zone 1.084 0.582 1.518 3.397 86Single, S, High HDD Zone 0.400 -0.166 0.898 1.206 61Single, RNF, High HDD Zone 1.401 0.901 1.834 3.150 87Single, RF, High HDD Zone 1.684 1.271 2.031 4.327 1660.459 . . 1.937 1892Toluene Intercept (SFH,URBAN, All HDD Zones) 0.042 -0.262 0.346 0.177 209Other, RNF/S/U, All HDD Zones 0.046 -0.349 0.358 0.397 595Other, RF, All HDD Zones 0.138 -0.348 0.540 0.739 185Single, S, Low HDD Zone 0.407 -0.224 0.954 1.316 76Single, RNF, Low HDD Zone 0.475 -0.075 0.941 1.267 117Single, RF, Low HDD Zone 1.089 0.576 1.517 2.450 150Single, S, Med HDD Zone 0.907 0.251 1.479 2.682 68Single, RNF, Med HDD Zone 0.587 -0.005 1.095 1.738 92Single, RF, Med HDD Zone 1.352 0.747 1.874 4.035 86Single, S, High HDD Zone 0.554 -0.128 1.152 1.625 61Single, RNF, High HDD Zone 1.723 1.119 2.242 3.857 87Single, RF, High HDD Zone 2.087 1.588 2.502 5.203 1660.567 . . 2.335 1892o-Xylene Intercept (SFH,URBAN, All HDD Zones) 0.012 -0.074 0.098 0.052 209Other, RNF/S/U, All HDD Zones 0.013 -0.099 0.101 0.112 595Other, RF, All HDD Zones 0.040 -0.097 0.153 0.209 185Single, S, Low HDD Zone 0.113 -0.066 0.267 0.361 76Single, RNF, Low HDD Zone 0.138 -0.017 0.269 0.360 117Single, RF, Low HDD Zone 0.306 0.162 0.427 0.676 150Single, S, Med HDD Zone 0.260 0.075 0.421 0.766 68Single, RNF, Med HDD Zone 0.169 0.001 0.312 0.483 92Single, RF, Med HDD Zone 0.391 0.220 0.538 1.123 86Single, S, High HDD Zone 0.173 -0.019 0.342 0.508 61Single, RNF, High HDD Zone 0.492 0.322 0.638 1.104 87Single, RF, High HDD Zone 0.600 0.459 0.717 1.465 166A-3

Pollutant Category Mean Lower Bound Upper Bound Standard Deviation N0.163 . . 0.659 1892Total PAH Intercept (SFH,URBAN, All HDD Zones) 0.041 -0.238 0.320 0.172 209Other, RNF/S/U, All HDD Zones 0.045 -0.320 0.328 0.393 595Other, RF, All HDD Zones 0.136 -0.312 0.501 0.732 185Single, S, Low HDD Zone 0.405 -0.176 0.904 1.315 76Single, RNF, Low HDD Zone 0.465 -0.042 0.889 1.253 117Single, RF, Low HDD Zone 1.062 0.589 1.452 2.417 150Single, S, Med HDD Zone 0.891 0.288 1.413 2.644 68Single, RNF, Med HDD Zone 0.577 0.032 1.040 1.731 92Single, RF, Med HDD Zone 1.267 0.710 1.743 3.590 86Single, S, High HDD Zone 0.509 -0.118 1.055 1.506 61Single, RNF, High HDD Zone 1.676 1.121 2.149 3.764 87Single, RF, High HDD Zone 1.900 1.440 2.278 4.516 1660.539 . . 2.142 189216-PAH Intercept (SFH,URBAN, All HDD Zones) 0.041 -0.259 0.340 0.170 209Other, RNF/S/U, All HDD Zones 0.045 -0.344 0.353 0.390 595Other, RF, All HDD Zones 0.134 -0.344 0.531 0.727 185Single, S, Low HDD Zone 0.404 -0.217 0.944 1.315 76Single, RNF, Low HDD Zone 0.457 -0.084 0.917 1.244 117Single, RF, Low HDD Zone 1.070 0.566 1.493 2.442 150Single, S, Med HDD Zone 0.880 0.235 1.444 2.618 68Single, RNF, Med HDD Zone 0.569 -0.013 1.071 1.727 92Single, RF, Med HDD Zone 1.306 0.710 1.820 4.005 86Single, S, High HDD Zone 0.505 -0.166 1.095 1.498 61Single, RNF, High HDD Zone 1.677 1.084 2.190 3.761 87Single, RF, High HDD Zone 2.023 1.532 2.433 5.127 1660.551 . . 2.298 1892Acenaphthene Intercept (SFH,URBAN, All HDD Zones) 0.001 -0.004 0.005 0.002 209Other, RNF/S/U, All HDD Zones 0.001 -0.005 0.005 0.005 595Other, RF, All HDD Zones 0.002 -0.005 0.007 0.010 185Single, S, Low HDD Zone 0.006 -0.003 0.013 0.018 76Single, RNF, Low HDD Zone 0.007 -0.001 0.013 0.018 117Single, RF, Low HDD Zone 0.015 0.008 0.021 0.034 150Single, S, Med HDD Zone 0.013 0.004 0.021 0.037 68Single, RNF, Med HDD Zone 0.008 0.000 0.015 0.024 92A-4

Pollutant Category Mean Lower Bound Upper Bound Standard Deviation NSingle, RF, Med HDD Zone 0.019 0.011 0.026 0.056 86Single, S, High HDD Zone 0.008 -0.001 0.016 0.023 61Single, RNF, High HDD Zone 0.024 0.016 0.031 0.054 87Single, RF, High HDD Zone 0.029 0.022 0.035 0.072 1660.008 . . 0.032 1892Acenaphthylene Intercept (SFH,URBAN, All HDD Zones) 0.011 -0.074 0.096 0.046 209Other, RNF/S/U, All HDD Zones 0.012 -0.097 0.100 0.111 595Other, RF, All HDD Zones 0.036 -0.098 0.149 0.207 185Single, S, Low HDD Zone 0.116 -0.059 0.269 0.382 76Single, RNF, Low HDD Zone 0.121 -0.032 0.251 0.353 117Single, RF, Low HDD Zone 0.299 0.157 0.419 0.707 150Single, S, Med HDD Zone 0.238 0.056 0.398 0.725 68Single, RNF, Med HDD Zone 0.154 -0.010 0.297 0.498 92Single, RF, Med HDD Zone 0.349 0.181 0.495 1.151 86Single, S, High HDD Zone 0.115 -0.074 0.282 0.371 61Single, RNF, High HDD Zone 0.458 0.291 0.603 1.040 87Single, RF, High HDD Zone 0.547 0.408 0.663 1.451 1660.149 . . 0.648 1892Anthracene Intercept (SFH,URBAN, All HDD Zones) 0.001 -0.005 0.007 0.003 209Other, RNF/S/U, All HDD Zones 0.001 -0.007 0.007 0.008 595Other, RF, All HDD Zones 0.003 -0.007 0.010 0.014 185Single, S, Low HDD Zone 0.008 -0.004 0.018 0.025 76Single, RNF, Low HDD Zone 0.009 -0.002 0.018 0.024 117Single, RF, Low HDD Zone 0.021 0.011 0.029 0.047 150Single, S, Med HDD Zone 0.017 0.005 0.028 0.051 68Single, RNF, Med HDD Zone 0.011 0.000 0.021 0.033 92Single, RF, Med HDD Zone 0.026 0.014 0.035 0.077 86Single, S, High HDD Zone 0.010 -0.003 0.022 0.030 61Single, RNF, High HDD Zone 0.033 0.021 0.043 0.073 87Single, RF, High HDD Zone 0.039 0.030 0.047 0.099 1660.011 . . 0.044 1892Benzo(a)anthracene Intercept (SFH,URBAN, All HDD Zones) 0.001 -0.007 0.009 0.005 209Other, RNF/S/U, All HDD Zones 0.001 -0.009 0.010 0.011 595Other, RF, All HDD Zones 0.004 -0.009 0.015 0.020 185Single, S, Low HDD Zone 0.011 -0.006 0.026 0.036 76A-5

Pollutant Category Mean Lower Bound Upper Bound Standard Deviation NSingle, RNF, Low HDD Zone 0.013 -0.002 0.025 0.034 117Single, RF, Low HDD Zone 0.029 0.016 0.041 0.067 150Single, S, Med HDD Zone 0.024 0.007 0.040 0.072 68Single, RNF, Med HDD Zone 0.016 0.000 0.030 0.047 92Single, RF, Med HDD Zone 0.036 0.020 0.050 0.110 86Single, S, High HDD Zone 0.014 -0.004 0.030 0.042 61Single, RNF, High HDD Zone 0.046 0.030 0.060 0.104 87Single, RF, High HDD Zone 0.056 0.042 0.067 0.141 1660.015 . . 0.063 1892Benzo(b)fluoranthene Intercept (SFH,URBAN, All HDD Zones) 0.000 -0.002 0.003 0.001 209Other, RNF/S/U, All HDD Zones 0.000 -0.003 0.003 0.003 595Other, RF, All HDD Zones 0.001 -0.003 0.004 0.006 185Single, S, Low HDD Zone 0.003 -0.002 0.008 0.011 76Single, RNF, Low HDD Zone 0.004 -0.001 0.008 0.010 117Single, RF, Low HDD Zone 0.009 0.005 0.012 0.020 150Single, S, Med HDD Zone 0.007 0.002 0.012 0.022 68Single, RNF, Med HDD Zone 0.005 0.000 0.009 0.014 92Single, RF, Med HDD Zone 0.011 0.006 0.015 0.033 86Single, S, High HDD Zone 0.004 -0.001 0.009 0.013 61Single, RNF, High HDD Zone 0.014 0.009 0.018 0.031 87Single, RF, High HDD Zone 0.017 0.013 0.020 0.043 1660.005 . . 0.019 1892Benzo(k)fluoranthene Intercept (SFH,URBAN, All HDD Zones) 1.09E-04 -7.07E-04 9.26E-04 4.58E-04 209Other, RNF/S/U, All HDD Zones 1.21E-04 -9.37E-04 9.61E-04 1.06E-03 595Other, RF, All HDD Zones 3.62E-04 -9.38E-04 1.44E-03 1.98E-03 185Single, S, Low HDD Zone 1.10E-03 -5.86E-04 2.57E-03 3.60E-03 76Single, RNF, Low HDD Zone 1.23E-03 -2.42E-04 2.48E-03 3.39E-03 117Single, RF, Low HDD Zone 2.91E-03 1.54E-03 4.06E-03 6.68E-03 150Single, S, Med HDD Zone 2.38E-03 6.23E-04 3.92E-03 7.10E-03 68Single, RNF, Med HDD Zone 1.54E-03 -4.62E-05 2.91E-03 4.72E-03 92Single, RF, Med HDD Zone 3.52E-03 1.90E-03 4.92E-03 1.09E-02 86Single, S, High HDD Zone 1.32E-03 -5.02E-04 2.93E-03 3.97E-03 61Single, RNF, High HDD Zone 4.54E-03 2.93E-03 5.94E-03 1.02E-02 87Single, RF, High HDD Zone 5.47E-03 4.13E-03 6.58E-03 1.40E-02 1661.49E-03 . . 6.25E-03 1892A-6

Pollutant Category Mean Lower Bound Upper Bound Standard Deviation NBenzo(ghi)perylene Intercept (SFH,URBAN, All HDD Zones) 3.35E-04 -1.96E-03 2.63E-03 1.89E-03 209Other, RNF/S/U, All HDD Zones 3.52E-04 -2.65E-03 2.69E-03 3.27E-03 595Other, RF, All HDD Zones 1.08E-03 -2.60E-03 4.10E-03 5.98E-03 185Single, S, Low HDD Zone 2.43E-03 -2.35E-03 6.55E-03 7.37E-03 76Single, RNF, Low HDD Zone 3.99E-03 -1.76E-04 7.49E-03 1.09E-02 117Single, RF, Low HDD Zone 7.34E-03 3.46E-03 1.06E-02 1.54E-02 150Single, S, Med HDD Zone 7.00E-03 2.03E-03 1.13E-02 2.18E-02 68Single, RNF, Med HDD Zone 4.54E-03 4.72E-05 8.36E-03 1.21E-02 92Single, RF, Med HDD Zone 1.09E-02 6.32E-03 1.48E-02 2.76E-02 86Single, S, High HDD Zone 6.73E-03 1.56E-03 1.12E-02 2.17E-02 61Single, RNF, High HDD Zone 1.29E-02 8.28E-03 1.68E-02 3.17E-02 87Single, RF, High HDD Zone 1.62E-02 1.25E-02 1.94E-02 3.87E-02 1664.38E-03 . . 1.77E-02 1892Benzo(a)pyrene Intercept (SFH,URBAN, All HDD Zones) 2.58E-04 -1.53E-03 2.04E-03 1.15E-03 209Other, RNF/S/U, All HDD Zones 2.79E-04 -2.06E-03 2.10E-03 2.37E-03 595Other, RF, All HDD Zones 8.44E-04 -2.02E-03 3.19E-03 4.39E-03 185Single, S, Low HDD Zone 2.28E-03 -1.44E-03 5.49E-03 7.23E-03 76Single, RNF, Low HDD Zone 2.97E-03 -2.69E-04 5.70E-03 7.64E-03 117Single, RF, Low HDD Zone 6.33E-03 3.31E-03 8.84E-03 1.37E-02 150Single, S, Med HDD Zone 5.51E-03 1.64E-03 8.86E-03 1.62E-02 68Single, RNF, Med HDD Zone 3.56E-03 7.50E-05 6.54E-03 9.90E-03 92Single, RF, Med HDD Zone 8.33E-03 4.77E-03 1.14E-02 2.30E-02 86Single, S, High HDD Zone 4.01E-03 -8.15E-06 7.51E-03 1.19E-02 61Single, RNF, High HDD Zone 1.03E-02 6.79E-03 1.34E-02 2.34E-02 87Single, RF, High HDD Zone 1.27E-02 9.76E-03 1.51E-02 3.05E-02 1663.45E-03 . . 1.38E-02 1892Chrysene Intercept (SFH,URBAN, All HDD Zones) 7.08E-04 -4.36E-03 5.78E-03 3.01E-03 209Other, RNF/S/U, All HDD Zones 7.77E-04 -5.83E-03 5.96E-03 6.63E-03 595Other, RF, All HDD Zones 2.33E-03 -5.78E-03 9.02E-03 1.23E-02 185Single, S, Low HDD Zone 6.72E-03 -3.81E-03 1.58E-02 2.16E-02 76Single, RNF, Low HDD Zone 8.06E-03 -1.11E-03 1.58E-02 2.12E-02 117Single, RF, Low HDD Zone 1.81E-02 9.59E-03 2.53E-02 4.04E-02 150Single, S, Med HDD Zone 1.53E-02 4.33E-03 2.48E-02 4.50E-02 68Single, RNF, Med HDD Zone 9.88E-03 3.95E-06 1.83E-02 2.88E-02 92Single, RF, Med HDD Zone 2.29E-02 1.28E-02 3.15E-02 6.68E-02 86A-7

Pollutant Category Mean Lower Bound Upper Bound Standard Deviation NSingle, S, High HDD Zone 9.76E-03 -1.62E-03 1.97E-02 2.86E-02 61Single, RNF, High HDD Zone 2.89E-02 1.89E-02 3.76E-02 6.48E-02 87Single, RF, High HDD Zone 3.52E-02 2.68E-02 4.21E-02 8.67E-02 1669.56E-03 . . 3.90E-02 1892Diddenzo(ah)anthracene Intercept (SFH,URBAN, All HDD Zones) 7.92E-04 -5.00E-03 6.58E-03 3.32E-03 209Other, RNF/S/U, All HDD Zones 8.74E-04 -6.65E-03 6.81E-03 7.55E-03 595Other, RF, All HDD Zones 2.61E-03 -6.63E-03 1.03E-02 1.41E-02 185Single, S, Low HDD Zone 7.78E-03 -4.23E-03 1.82E-02 2.52E-02 76Single, RNF, Low HDD Zone 8.95E-03 -1.51E-03 1.78E-02 2.41E-02 117Single, RF, Low HDD Zone 2.07E-02 1.10E-02 2.89E-02 4.69E-02 150Single, S, Med HDD Zone 1.72E-02 4.67E-03 2.81E-02 5.09E-02 68Single, RNF, Med HDD Zone 1.11E-02 -1.69E-04 2.08E-02 3.32E-02 92Single, RF, Med HDD Zone 2.55E-02 1.40E-02 3.54E-02 7.71E-02 86Single, S, High HDD Zone 1.02E-02 -2.80E-03 2.16E-02 3.00E-02 61Single, RNF, High HDD Zone 3.26E-02 2.12E-02 4.25E-02 7.31E-02 87Single, RF, High HDD Zone 3.95E-02 3.00E-02 4.74E-02 9.91E-02 1661.07E-02 . . 4.44E-02 1892Fluoranthene Intercept (SFH,URBAN, All HDD Zones) 1.09E-03 -7.07E-03 9.26E-03 4.58E-03 209Other, RNF/S/U, All HDD Zones 1.21E-03 -9.37E-03 9.61E-03 1.06E-02 595Other, RF, All HDD Zones 3.62E-03 -9.38E-03 1.44E-02 1.98E-02 185Single, S, Low HDD Zone 1.10E-02 -5.86E-03 2.57E-02 3.60E-02 76Single, RNF, Low HDD Zone 1.23E-02 -2.42E-03 2.48E-02 3.39E-02 117Single, RF, Low HDD Zone 2.91E-02 1.54E-02 4.06E-02 6.68E-02 150Single, S, Med HDD Zone 2.38E-02 6.23E-03 3.92E-02 7.10E-02 68Single, RNF, Med HDD Zone 1.54E-02 -4.62E-04 2.91E-02 4.72E-02 92Single, RF, Med HDD Zone 3.52E-02 1.90E-02 4.92E-02 1.09E-01 86Single, S, High HDD Zone 1.32E-02 -5.02E-03 2.93E-02 3.97E-02 61Single, RNF, High HDD Zone 4.54E-02 2.93E-02 5.94E-02 1.02E-01 87Single, RF, High HDD Zone 5.47E-02 4.13E-02 6.58E-02 1.40E-01 1661.49E-02 . . 6.25E-02 1892Fluorene Intercept (SFH,URBAN, All HDD Zones) 1.34E-03 -8.53E-03 1.12E-02 5.61E-03 209Other, RNF/S/U, All HDD Zones 1.48E-03 -1.13E-02 1.16E-02 1.28E-02 595Other, RF, All HDD Zones 4.42E-03 -1.13E-02 1.75E-02 2.40E-02 185Single, S, Low HDD Zone 1.33E-02 -7.16E-03 3.11E-02 4.32E-02 76Single, RNF, Low HDD Zone 1.51E-02 -2.72E-03 3.02E-02 4.10E-02 117A-8

Pollutant Category Mean Lower Bound Upper Bound Standard Deviation NSingle, RF, Low HDD Zone 3.53E-02 1.87E-02 4.92E-02 8.03E-02 150Single, S, Med HDD Zone 2.90E-02 7.79E-03 4.76E-02 8.63E-02 68Single, RNF, Med HDD Zone 1.88E-02 -3.95E-04 3.53E-02 5.68E-02 92Single, RF, Med HDD Zone 4.31E-02 2.35E-02 6.01E-02 1.32E-01 86Single, S, High HDD Zone 1.68E-02 -5.31E-03 3.62E-02 4.98E-02 61Single, RNF, High HDD Zone 5.53E-02 3.58E-02 7.22E-02 1.24E-01 87Single, RF, High HDD Zone 6.68E-02 5.06E-02 8.03E-02 1.69E-01 1661.82E-02 . . 7.57E-02 1892Indeno(123cd)pyrene Intercept (SFH,URBAN, All HDD Zones) 1.55E-04 -1.50E-03 1.81E-03 1.83E-03 209Other, RNF/S/U, All HDD Zones 1.46E-04 -1.93E-03 1.91E-03 2.77E-03 595Other, RF, All HDD Zones 4.80E-04 -2.09E-03 2.74E-03 5.03E-03 185Single, S, Low HDD Zone 2.99E-04 -3.06E-03 3.35E-03 1.66E-03 76Single, RNF, Low HDD Zone 2.05E-03 -8.69E-04 4.65E-03 9.73E-03 117Single, RF, Low HDD Zone 2.03E-03 -6.82E-04 4.43E-03 9.09E-03 150Single, S, Med HDD Zone 2.99E-03 -5.00E-04 6.17E-03 1.55E-02 68Single, RNF, Med HDD Zone 1.94E-03 -1.20E-03 4.78E-03 8.90E-03 92Single, RF, Med HDD Zone 5.16E-03 1.94E-03 8.07E-03 1.87E-02 86Single, S, High HDD Zone 5.44E-03 1.81E-03 8.76E-03 2.14E-02 61Single, RNF, High HDD Zone 5.03E-03 1.83E-03 7.93E-03 2.28E-02 87Single, RF, High HDD Zone 7.07E-03 4.43E-03 9.40E-03 2.70E-02 1661.87E-03 . . 1.24E-02 1892Naphthalene Intercept (SFH,URBAN, All HDD Zones) 0.016 -0.102 0.134 0.067 209Other, RNF/S/U, All HDD Zones 0.018 -0.136 0.139 0.154 595Other, RF, All HDD Zones 0.053 -0.136 0.210 0.287 185Single, S, Low HDD Zone 0.159 -0.086 0.373 0.519 76Single, RNF, Low HDD Zone 0.181 -0.033 0.362 0.491 117Single, RF, Low HDD Zone 0.423 0.224 0.590 0.963 150Single, S, Med HDD Zone 0.348 0.093 0.571 1.034 68Single, RNF, Med HDD Zone 0.225 -0.005 0.423 0.682 92Single, RF, Med HDD Zone 0.516 0.281 0.719 1.581 86Single, S, High HDD Zone 0.200 -0.065 0.433 0.594 61Single, RNF, High HDD Zone 0.663 0.428 0.865 1.486 87Single, RF, High HDD Zone 0.800 0.606 0.962 2.024 1660.218 . . 0.907 1892Phenanthrene Intercept (SFH,URBAN, All HDD Zones) 4.84E-03 -2.91E-02 3.88E-02 2.11E-02 209A-9

Pollutant Category Mean Lower Bound Upper Bound Standard Deviation NOther, RNF/S/U, All HDD Zones 5.27E-03 -3.90E-02 3.99E-02 4.47E-02 595Other, RF, All HDD Zones 1.59E-02 -3.85E-02 6.06E-02 8.29E-02 185Single, S, Low HDD Zone 4.41E-02 -2.64E-02 1.05E-01 1.41E-01 76Single, RNF, Low HDD Zone 5.55E-02 -6.03E-03 1.07E-01 1.44E-01 117Single, RF, Low HDD Zone 1.21E-01 6.36E-02 1.69E-01 2.65E-01 150Single, S, Med HDD Zone 1.04E-01 3.04E-02 1.67E-01 3.05E-01 68Single, RNF, Med HDD Zone 6.72E-02 9.30E-04 1.24E-01 1.90E-01 92Single, RF, Med HDD Zone 1.56E-01 8.86E-02 2.14E-01 4.42E-01 86Single, S, High HDD Zone 7.16E-02 -4.65E-03 1.38E-01 2.10E-01 61Single, RNF, High HDD Zone 1.96E-01 1.28E-01 2.53E-01 4.40E-01 87Single, RF, High HDD Zone 2.39E-01 1.83E-01 2.85E-01 5.79E-01 1666.49E-02 . . 2.61E-01 1892Pyrene Intercept (SFH,URBAN, All HDD Zones) 1.27E-03 -8.42E-03 1.10E-02 5.36E-03 209Other, RNF/S/U, All HDD Zones 1.42E-03 -1.11E-02 1.14E-02 1.26E-02 595Other, RF, All HDD Zones 4.22E-03 -1.12E-02 1.71E-02 2.36E-02 185Single, S, Low HDD Zone 1.32E-02 -6.87E-03 3.07E-02 4.32E-02 76Single, RNF, Low HDD Zone 1.42E-02 -3.21E-03 2.92E-02 4.02E-02 117Single, RF, Low HDD Zone 3.44E-02 1.82E-02 4.81E-02 8.01E-02 150Single, S, Med HDD Zone 2.78E-02 6.97E-03 4.61E-02 8.37E-02 68Single, RNF, Med HDD Zone 1.80E-02 -8.19E-04 3.42E-02 5.65E-02 92Single, RF, Med HDD Zone 4.10E-02 2.17E-02 5.77E-02 1.31E-01 86Single, S, High HDD Zone 1.45E-02 -7.13E-03 3.36E-02 4.47E-02 61Single, RNF, High HDD Zone 5.32E-02 3.41E-02 6.98E-02 1.20E-01 87Single, RF, High HDD Zone 6.38E-02 4.80E-02 7.71E-02 1.66E-01 1661.74E-02 . . 7.42E-02 1892Biphenyl Intercept (SFH,URBAN, All HDD Zones) 1.35E-03 -8.15E-03 1.08E-02 5.82E-03 209Other, RNF/S/U, All HDD Zones 1.47E-03 -1.09E-02 1.12E-02 1.25E-02 595Other, RF, All HDD Zones 4.42E-03 -1.08E-02 1.69E-02 2.31E-02 185Single, S, Low HDD Zone 1.24E-02 -7.31E-03 2.95E-02 3.97E-02 76Single, RNF, Low HDD Zone 1.54E-02 -1.79E-03 2.99E-02 4.00E-02 117Single, RF, Low HDD Zone 3.39E-02 1.78E-02 4.72E-02 7.45E-02 150Single, S, Med HDD Zone 2.89E-02 8.41E-03 4.67E-02 8.51E-02 68Single, RNF, Med HDD Zone 1.87E-02 1.99E-04 3.45E-02 5.33E-02 92Single, RF, Med HDD Zone 4.35E-02 2.45E-02 5.97E-02 1.24E-01 86Single, S, High HDD Zone 1.96E-02 -1.76E-03 3.82E-02 5.74E-02 61A-10

Pollutant Category Mean Lower Bound Upper Bound Standard Deviation NSingle, RNF, High HDD Zone 5.46E-02 3.57E-02 7.07E-02 1.23E-01 87Single, RF, High HDD Zone 6.66E-02 5.10E-02 7.95E-02 1.62E-01 1661.81E-02 . . 7.30E-02 1892n-Hexane Intercept (SFH,URBAN, All HDD Zones) 8.93E-04 -5.20E-03 6.99E-03 4.88E-03 209Other, RNF/S/U, All HDD Zones 9.40E-04 -7.04E-03 7.13E-03 8.60E-03 595Other, RF, All HDD Zones 2.89E-03 -6.90E-03 1.09E-02 1.58E-02 185Single, S, Low HDD Zone 6.63E-03 -6.06E-03 1.75E-02 2.02E-02 76Single, RNF, Low HDD Zone 1.06E-02 -4.67E-04 1.99E-02 2.86E-02 117Single, RF, Low HDD Zone 1.98E-02 9.49E-03 2.84E-02 4.15E-02 150Single, S, Med HDD Zone 1.87E-02 5.50E-03 3.01E-02 5.76E-02 68Single, RNF, Med HDD Zone 1.21E-02 1.96E-04 2.22E-02 3.21E-02 92Single, RF, Med HDD Zone 2.90E-02 1.69E-02 3.94E-02 7.39E-02 86Single, S, High HDD Zone 1.75E-02 3.77E-03 2.94E-02 5.58E-02 61Single, RNF, High HDD Zone 3.44E-02 2.23E-02 4.48E-02 8.38E-02 87Single, RF, High HDD Zone 4.33E-02 3.33E-02 5.16E-02 1.03E-01 1661.17E-02 . . 4.69E-02 18921,3-Butadiene Intercept (SFH,URBAN, All HDD Zones) 0.011 -0.061 0.082 0.056 209Other, RNF/S/U, All HDD Zones 0.011 -0.083 0.084 0.100 595Other, RF, All HDD Zones 0.034 -0.081 0.128 0.184 185Single, S, Low HDD Zone 0.080 -0.070 0.208 0.244 76Single, RNF, Low HDD Zone 0.124 -0.006 0.234 0.332 117Single, RF, Low HDD Zone 0.236 0.115 0.336 0.495 150Single, S, Med HDD Zone 0.221 0.066 0.355 0.675 68Single, RNF, Med HDD Zone 0.143 0.003 0.262 0.379 92Single, RF, Med HDD Zone 0.342 0.199 0.464 0.874 86Single, S, High HDD Zone 0.202 0.040 0.342 0.638 61Single, RNF, High HDD Zone 0.407 0.264 0.529 0.981 87Single, RF, High HDD Zone 0.511 0.393 0.608 1.211 1660.138 . . 0.551 1892Formaldehyde Intercept (SFH,URBAN, All HDD Zones) 0.054 -0.347 0.455 0.226 209Other, RNF/S/U, All HDD Zones 0.060 -0.461 0.472 0.522 595Other, RF, All HDD Zones 0.179 -0.461 0.710 0.974 185Single, S, Low HDD Zone 0.542 -0.289 1.265 1.765 76Single, RNF, Low HDD Zone 0.608 -0.115 1.224 1.665 117Single, RF, Low HDD Zone 1.432 0.757 1.998 3.276 150A-11

Pollutant Category Mean Lower Bound Upper Bound Standard Deviation NSingle, S, Med HDD Zone 1.174 0.311 1.930 3.499 68Single, RNF, Med HDD Zone 0.760 -0.020 1.431 2.316 92Single, RF, Med HDD Zone 1.740 0.943 2.429 5.369 86Single, S, High HDD Zone 0.664 -0.234 1.454 1.979 61Single, RNF, High HDD Zone 2.240 1.445 2.925 5.025 87Single, RF, High HDD Zone 2.699 2.042 3.248 6.864 1660.735 . . 3.075 1892Acetaldehyde Intercept (SFH,URBAN, All HDD Zones) 0.060 -0.373 0.494 0.256 209Other, RNF/S/U, All HDD Zones 0.066 -0.499 0.510 0.567 595Other, RF, All HDD Zones 0.199 -0.495 0.772 1.055 185Single, S, Low HDD Zone 0.576 -0.324 1.356 1.857 76Single, RNF, Low HDD Zone 0.687 -0.097 1.351 1.813 117Single, RF, Low HDD Zone 1.553 0.821 2.163 3.466 150Single, S, Med HDD Zone 1.304 0.368 2.120 3.847 68Single, RNF, Med HDD Zone 0.844 -0.001 1.569 2.465 92Single, RF, Med HDD Zone 1.950 1.086 2.693 5.727 86Single, S, High HDD Zone 0.826 -0.148 1.678 2.417 61Single, RNF, High HDD Zone 2.472 1.611 3.212 5.535 87Single, RF, High HDD Zone 3.003 2.290 3.594 7.418 1660.816 . . 3.333 1892Acrolein Intercept (SFH,URBAN, All HDD Zones) 7.02E-03 -4.33E-02 5.73E-02 2.98E-02 209Other, RNF/S/U, All HDD Zones 7.70E-03 -5.78E-02 5.91E-02 6.57E-02 595Other, RF, All HDD Zones 2.31E-02 -5.73E-02 8.95E-02 1.22E-01 185Single, S, Low HDD Zone 6.67E-02 -3.77E-02 1.57E-01 2.15E-01 76Single, RNF, Low HDD Zone 7.99E-02 -1.10E-02 1.57E-01 2.10E-01 117Single, RF, Low HDD Zone 1.80E-01 9.51E-02 2.51E-01 4.01E-01 150Single, S, Med HDD Zone 1.51E-01 4.29E-02 2.46E-01 4.46E-01 68Single, RNF, Med HDD Zone 9.80E-02 2.94E-05 1.82E-01 2.85E-01 92Single, RF, Med HDD Zone 2.27E-01 1.26E-01 3.13E-01 6.63E-01 86Single, S, High HDD Zone 9.67E-02 -1.61E-02 1.95E-01 2.83E-01 61Single, RNF, High HDD Zone 2.87E-01 1.87E-01 3.72E-01 6.42E-01 87Single, RF, High HDD Zone 3.49E-01 2.66E-01 4.17E-01 8.59E-01 1669.47E-02 . . 3.86E-01 1892Chloromethane Intercept (SFH,URBAN, All HDD Zones) 3.86E-03 -2.45E-02 3.23E-02 1.62E-02 209Other, RNF/S/U, All HDD Zones 4.27E-03 -3.26E-02 3.34E-02 3.70E-02 595A-12

Pollutant Category Mean Lower Bound Upper Bound Standard Deviation NOther, RF, All HDD Zones 1.27E-02 -3.26E-02 5.03E-02 6.89E-02 185Single, S, Low HDD Zone 3.82E-02 -2.06E-02 8.94E-02 1.24E-01 76Single, RNF, Low HDD Zone 4.35E-02 -7.74E-03 8.71E-02 1.18E-01 117Single, RF, Low HDD Zone 1.02E-01 5.37E-02 1.42E-01 2.31E-01 150Single, S, Med HDD Zone 8.37E-02 2.25E-02 1.37E-01 2.49E-01 68Single, RNF, Med HDD Zone 5.42E-02 -1.08E-03 1.02E-01 1.63E-01 92Single, RF, Med HDD Zone 1.24E-01 6.78E-02 1.73E-01 3.79E-01 86Single, S, High HDD Zone 4.86E-02 -1.50E-02 1.05E-01 1.44E-01 61Single, RNF, High HDD Zone 1.59E-01 1.03E-01 2.08E-01 3.57E-01 87Single, RF, High HDD Zone 1.92E-01 1.46E-01 2.31E-01 4.86E-01 1665.24E-02 . . 2.18E-01 1892Methylene chloride Intercept (SFH,URBAN, All HDD Zones) 0.016 -0.115 0.147 0.072 209Other, RNF/S/U, All HDD Zones 0.018 -0.151 0.155 0.172 595Other, RF, All HDD Zones 0.054 -0.154 0.229 0.323 185Single, S, Low HDD Zone 0.179 -0.091 0.417 0.597 76Single, RNF, Low HDD Zone 0.177 -0.059 0.380 0.551 117Single, RF, Low HDD Zone 0.456 0.236 0.643 1.108 150Single, S, Med HDD Zone 0.355 0.073 0.604 1.107 68Single, RNF, Med HDD Zone 0.229 -0.024 0.451 0.782 92Single, RF, Med HDD Zone 0.515 0.256 0.742 1.798 86Single, S, High HDD Zone 0.146 -0.146 0.407 0.542 61Single, RNF, High HDD Zone 0.686 0.428 0.912 1.586 87Single, RF, High HDD Zone 0.812 0.599 0.993 2.246 1660.222 . . 1.001 1892m,p-Xylenes Intercept (SFH,URBAN, All HDD Zones) 6.53E-03 -3.91E-02 5.22E-02 2.87E-02 209Other, RNF/S/U, All HDD Zones 7.10E-03 -5.25E-02 5.36E-02 6.02E-02 595Other, RF, All HDD Zones 2.14E-02 -5.17E-02 8.15E-02 1.12E-01 185Single, S, Low HDD Zone 5.90E-02 -3.59E-02 1.41E-01 1.88E-01 76Single, RNF, Low HDD Zone 7.50E-02 -7.68E-03 1.45E-01 1.94E-01 117Single, RF, Low HDD Zone 1.62E-01 8.52E-02 2.26E-01 3.54E-01 150Single, S, Med HDD Zone 1.40E-01 4.13E-02 2.26E-01 4.12E-01 68Single, RNF, Med HDD Zone 9.06E-02 1.50E-03 1.67E-01 2.55E-01 92Single, RF, Med HDD Zone 2.11E-01 1.20E-01 2.89E-01 5.92E-01 86Single, S, High HDD Zone 9.83E-02 -4.21E-03 1.88E-01 2.90E-01 61Single, RNF, High HDD Zone 2.63E-01 1.73E-01 3.41E-01 5.94E-01 87A-13

Pollutant Category Mean Lower Bound Upper Bound Standard Deviation NSingle, RF, High HDD Zone 3.23E-01 2.47E-01 3.85E-01 7.79E-01 1668.75E-02 . . 3.51E-01 1892Ethyl benzene Intercept (SFH,URBAN, All HDD Zones) 2.81E-03 -1.70E-02 2.27E-02 1.22E-02 209Other, RNF/S/U, All HDD Zones 3.07E-03 -2.28E-02 2.33E-02 2.61E-02 595Other, RF, All HDD Zones 9.25E-03 -2.25E-02 3.54E-02 4.84E-02 185Single, S, Low HDD Zone 2.60E-02 -1.53E-02 6.16E-02 8.30E-02 76Single, RNF, Low HDD Zone 3.22E-02 -3.74E-03 6.25E-02 8.36E-02 117Single, RF, Low HDD Zone 7.08E-02 3.73E-02 9.87E-02 1.56E-01 150Single, S, Med HDD Zone 6.05E-02 1.76E-02 9.77E-02 1.78E-01 68Single, RNF, Med HDD Zone 3.91E-02 4.17E-04 7.22E-02 1.11E-01 92Single, RF, Med HDD Zone 9.09E-02 5.13E-02 1.25E-01 2.59E-01 86Single, S, High HDD Zone 4.09E-02 -3.68E-03 7.98E-02 1.20E-01 61Single, RNF, High HDD Zone 1.14E-01 7.47E-02 1.48E-01 2.56E-01 87Single, RF, High HDD Zone 1.39E-01 1.07E-01 1.66E-01 3.39E-01 1663.78E-02 . . 1.53E-01 1892Acetophenone Intercept (SFH,URBAN, All HDD Zones) 9.18E-04 -5.55E-03 7.39E-03 3.97E-03 209Other, RNF/S/U, All HDD Zones 1.00E-03 -7.44E-03 7.61E-03 8.50E-03 595Other, RF, All HDD Zones 3.02E-03 -7.35E-03 1.15E-02 1.58E-02 185Single, S, Low HDD Zone 8.47E-03 -4.99E-03 2.01E-02 2.71E-02 76Single, RNF, Low HDD Zone 1.05E-02 -1.22E-03 2.04E-02 2.73E-02 117Single, RF, Low HDD Zone 2.31E-02 1.22E-02 3.22E-02 5.08E-02 150Single, S, Med HDD Zone 1.97E-02 5.73E-03 3.19E-02 5.80E-02 68Single, RNF, Med HDD Zone 1.28E-02 1.36E-04 2.36E-02 3.64E-02 92Single, RF, Med HDD Zone 2.96E-02 1.67E-02 4.07E-02 8.45E-02 86Single, S, High HDD Zone 1.33E-02 -1.20E-03 2.60E-02 3.91E-02 61Single, RNF, High HDD Zone 3.72E-02 2.43E-02 4.82E-02 8.36E-02 87Single, RF, High HDD Zone 4.54E-02 3.48E-02 5.42E-02 1.11E-01 1661.23E-02 . . 4.98E-02 1892o-Cresol Intercept (SFH,URBAN, All HDD Zones) 7.16E-03 -4.33E-02 5.76E-02 3.09E-02 209Other, RNF/S/U, All HDD Zones 7.81E-03 -5.80E-02 5.93E-02 6.63E-02 595Other, RF, All HDD Zones 2.35E-02 -5.73E-02 9.00E-02 1.23E-01 185Single, S, Low HDD Zone 6.60E-02 -3.89E-02 1.57E-01 2.11E-01 76Single, RNF, Low HDD Zone 8.19E-02 -9.51E-03 1.59E-01 2.13E-01 117Single, RF, Low HDD Zone 1.80E-01 9.49E-02 2.51E-01 3.96E-01 150Single, S, Med HDD Zone 1.54E-01 4.47E-02 2.49E-01 4.52E-01 68A-14

Pollutant Category Mean Lower Bound Upper Bound Standard Deviation NSingle, RNF, Med HDD Zone 9.95E-02 1.06E-03 1.84E-01 2.84E-01 92Single, RF, Med HDD Zone 2.31E-01 1.31E-01 3.18E-01 6.59E-01 86Single, S, High HDD Zone 1.04E-01 -9.37E-03 2.03E-01 3.05E-01 61Single, RNF, High HDD Zone 2.90E-01 1.90E-01 3.76E-01 6.52E-01 87Single, RF, High HDD Zone 3.54E-01 2.71E-01 4.23E-01 8.62E-01 1669.62E-02 . . 3.88E-01 1892m,p-Cresol Intercept (SFH,URBAN, All HDD Zones) 0.027 -0.165 0.220 0.118 209Other, RNF/S/U, All HDD Zones 0.030 -0.221 0.226 0.253 595Other, RF, All HDD Zones 0.090 -0.218 0.343 0.469 185Single, S, Low HDD Zone 0.252 -0.148 0.597 0.805 76Single, RNF, Low HDD Zone 0.312 -0.036 0.606 0.811 117Single, RF, Low HDD Zone 0.687 0.362 0.957 1.511 150Single, S, Med HDD Zone 0.586 0.170 0.947 1.725 68Single, RNF, Med HDD Zone 0.379 0.004 0.700 1.081 92Single, RF, Med HDD Zone 0.881 0.498 1.210 2.513 86Single, S, High HDD Zone 0.396 -0.036 0.774 1.163 61Single, RNF, High HDD Zone 1.106 0.724 1.434 2.485 87Single, RF, High HDD Zone 1.351 1.034 1.613 3.287 1660.367 . . 1.480 1892Polychlorinated Intercept (SFH,URBAN, All HDD Zones) 1.02E-06 -6.18E-06 8.23E-06 4.42E-06 209Biphenyls (PCBs) Other, RNF/S/U, All HDD Zones 1.11E-06 -8.28E-06 8.47E-06 9.47E-06 595Other, RF, All HDD Zones 3.36E-06 -8.18E-06 1.29E-05 1.76E-05 185Single, S, Low HDD Zone 9.43E-06 -5.55E-06 2.24E-05 3.01E-05 76Single, RNF, Low HDD Zone 1.17E-05 -1.36E-06 2.27E-05 3.04E-05 117Single, RF, Low HDD Zone 2.57E-05 1.35E-05 3.58E-05 5.66E-05 150Single, S, Med HDD Zone 2.19E-05 6.38E-06 3.55E-05 6.46E-05 68Single, RNF, Med HDD Zone 1.42E-05 1.51E-07 2.62E-05 4.05E-05 92Single, RF, Med HDD Zone 3.30E-05 1.86E-05 4.53E-05 9.41E-05 86Single, S, High HDD Zone 1.48E-05 -1.34E-06 2.90E-05 4.35E-05 61Single, RNF, High HDD Zone 4.14E-05 2.71E-05 5.37E-05 9.30E-05 87Single, RF, High HDD Zone 5.06E-05 3.87E-05 6.04E-05 1.23E-04 1661.37E-05 . . 5.54E-05 1892PCB Toxic Equivalent Intercept (SFH,URBAN, All HDD Zones) 1.71E-13 -1.04E-12 1.38E-12 7.40E-13 209Quantity Other, RNF/S/U, All HDD Zones 1.87E-13 -1.39E-12 1.42E-12 1.59E-12 595Other, RF, All HDD Zones 5.63E-13 -1.37E-12 2.15E-12 2.95E-12 185A-15

Pollutant Category Mean Lower Bound Upper Bound Standard Deviation NSingle, S, Low HDD Zone 1.58E-12 -9.31E-13 3.75E-12 5.05E-12 76Single, RNF, Low HDD Zone 1.96E-12 -2.28E-13 3.81E-12 5.09E-12 117Single, RF, Low HDD Zone 4.31E-12 2.27E-12 6.01E-12 9.49E-12 150Single, S, Med HDD Zone 3.68E-12 1.07E-12 5.95E-12 1.08E-11 68Single, RNF, Med HDD Zone 2.38E-12 2.54E-14 4.40E-12 6.79E-12 92Single, RF, Med HDD Zone 5.53E-12 3.12E-12 7.60E-12 1.58E-11 86Single, S, High HDD Zone 2.49E-12 -2.24E-13 4.86E-12 7.30E-12 61Single, RNF, High HDD Zone 6.94E-12 4.55E-12 9.00E-12 1.56E-11 87Single, RF, High HDD Zone 8.48E-12 6.49E-12 1.01E-11 2.06E-11 1662.30E-12 . . 9.29E-12 1892Hexachlorobenzene Intercept (SFH,URBAN, All HDD Zones) 3.27E-08 -1.75E-07 2.41E-07 1.49E-07 209Other, RNF/S/U, All HDD Zones 2.75E-08 -2.47E-07 2.36E-07 2.65E-07 595Other, RF, All HDD Zones 7.77E-08 -2.59E-07 3.48E-07 4.96E-07 185Single, S, Low HDD Zone 2.34E-07 -2.02E-07 6.04E-07 7.09E-07 76Single, RNF, Low HDD Zone 2.00E-07 -1.80E-07 5.15E-07 6.95E-07 117Single, RF, Low HDD Zone 5.07E-07 1.52E-07 7.96E-07 1.37E-06 150Single, S, Med HDD Zone 5.07E-07 5.44E-08 8.94E-07 1.51E-06 68Single, RNF, Med HDD Zone 2.91E-07 -1.17E-07 6.35E-07 1.15E-06 92Single, RF, Med HDD Zone 6.35E-07 2.17E-07 9.87E-07 2.76E-06 86Single, S, High HDD Zone 1.99E-07 -2.72E-07 6.03E-07 8.59E-07 61Single, RNF, High HDD Zone 5.89E-07 1.72E-07 9.39E-07 1.89E-06 87Single, RF, High HDD Zone 1.11E-06 7.66E-07 1.39E-06 4.03E-06 1662.74E-07 . . 1.56E-06 18922,3,7,8-Tetrachloro- Intercept (SFH,URBAN, All HDD Zones) 1.06E-11 -6.15E-11 8.27E-11 5.69E-11 209Dibenzo-p-dioxin Other, RNF/S/U, All HDD Zones 1.12E-11 -8.32E-11 8.44E-11 1.01E-10 595Other, RF, All HDD Zones 3.43E-11 -8.15E-11 1.29E-10 1.85E-10 185Single, S, Low HDD Zone 7.98E-11 -7.04E-11 2.09E-10 2.44E-10 76Single, RNF, Low HDD Zone 1.25E-10 -5.60E-12 2.35E-10 3.35E-10 117Single, RF, Low HDD Zone 2.37E-10 1.15E-10 3.38E-10 4.97E-10 150Single, S, Med HDD Zone 2.22E-10 6.58E-11 3.57E-10 6.80E-10 68Single, RNF, Med HDD Zone 1.44E-10 2.77E-12 2.64E-10 3.82E-10 92Single, RF, Med HDD Zone 3.44E-10 2.00E-10 4.67E-10 8.78E-10 86Single, S, High HDD Zone 2.04E-10 4.16E-11 3.45E-10 6.47E-10 61Single, RNF, High HDD Zone 4.09E-10 2.66E-10 5.32E-10 9.89E-10 87Single, RF, High HDD Zone 5.14E-10 3.95E-10 6.12E-10 1.22E-09 166A-16

Pollutant Category Mean Lower Bound Upper Bound Standard Deviation N1.39E-10 . . 5.55E-10 18921,2,3,7,8-Pentachloro- Intercept (SFH,URBAN, All HDD Zones) 1.24E-11 -7.19E-11 9.67E-11 6.41E-11 209Dibenzo-p-dioxin Other, RNF/S/U, All HDD Zones 1.32E-11 -9.73E-11 9.88E-11 1.17E-10 595Other, RF, All HDD Zones 4.03E-11 -9.52E-11 1.51E-10 2.14E-10 185Single, S, Low HDD Zone 9.67E-11 -7.91E-11 2.48E-10 2.98E-10 76Single, RNF, Low HDD Zone 1.46E-10 -7.02E-12 2.75E-10 3.85E-10 117Single, RF, Low HDD Zone 2.83E-10 1.40E-10 4.01E-10 5.94E-10 150Single, S, Med HDD Zone 2.61E-10 7.85E-11 4.19E-10 7.91E-10 68Single, RNF, Med HDD Zone 1.69E-10 4.17E-12 3.09E-10 4.50E-10 92Single, RF, Med HDD Zone 4.03E-10 2.34E-10 5.47E-10 1.04E-09 86Single, S, High HDD Zone 2.30E-10 4.03E-11 3.95E-10 7.20E-10 61Single, RNF, High HDD Zone 4.83E-10 3.15E-10 6.26E-10 1.15E-09 87Single, RF, High HDD Zone 6.04E-10 4.65E-10 7.19E-10 1.43E-09 1661.63E-10 . . 6.49E-10 18921,2,3,4,7,8-Hexachloro- Intercept (SFH,URBAN, All HDD Zones) 1.28E-11 -7.46E-11 1.00E-10 6.24E-11 209Dibenzo-p-dioxin Other, RNF/S/U, All HDD Zones 1.37E-11 -1.01E-10 1.02E-10 1.19E-10 595Other, RF, All HDD Zones 4.18E-11 -9.86E-11 1.56E-10 2.19E-10 185Single, S, Low HDD Zone 1.05E-10 -7.69E-11 2.61E-10 3.27E-10 76Single, RNF, Low HDD Zone 1.50E-10 -8.78E-12 2.83E-10 3.88E-10 117Single, RF, Low HDD Zone 3.01E-10 1.53E-10 4.23E-10 6.37E-10 150Single, S, Med HDD Zone 2.71E-10 8.23E-11 4.35E-10 8.10E-10 68Single, RNF, Med HDD Zone 1.76E-10 4.95E-12 3.21E-10 4.72E-10 92Single, RF, Med HDD Zone 4.16E-10 2.41E-10 5.65E-10 1.10E-09 86Single, S, High HDD Zone 2.23E-10 2.68E-11 3.94E-10 6.84E-10 61Single, RNF, High HDD Zone 5.05E-10 3.31E-10 6.53E-10 1.17E-09 87Single, RF, High HDD Zone 6.28E-10 4.83E-10 7.46E-10 1.48E-09 1661.70E-10 . . 6.73E-10 18921,2,3,6,7,8-Hexachloro- Intercept (SFH,URBAN, All HDD Zones) 1.28E-11 -7.46E-11 1.00E-10 6.24E-11 209Dibenzo-p-dioxin Other, RNF/S/U, All HDD Zones 1.37E-11 -1.01E-10 1.02E-10 1.19E-10 595Other, RF, All HDD Zones 4.18E-11 -9.86E-11 1.56E-10 2.19E-10 185Single, S, Low HDD Zone 1.05E-10 -7.69E-11 2.61E-10 3.27E-10 76Single, RNF, Low HDD Zone 1.50E-10 -8.78E-12 2.83E-10 3.88E-10 117Single, RF, Low HDD Zone 3.01E-10 1.53E-10 4.23E-10 6.37E-10 150Single, S, Med HDD Zone 2.71E-10 8.23E-11 4.35E-10 8.10E-10 68Single, RNF, Med HDD Zone 1.76E-10 4.95E-12 3.21E-10 4.72E-10 92A-17

Pollutant Category Mean Lower Bound Upper Bound Standard Deviation NSingle, RF, Med HDD Zone 4.16E-10 2.41E-10 5.65E-10 1.10E-09 86Single, S, High HDD Zone 2.23E-10 2.68E-11 3.94E-10 6.84E-10 61Single, RNF, High HDD Zone 5.05E-10 3.31E-10 6.53E-10 1.17E-09 87Single, RF, High HDD Zone 6.28E-10 4.83E-10 7.46E-10 1.48E-09 1661.70E-10 . . 6.73E-10 18921,2,3,7,8,9-Hexachloro- Intercept (SFH,URBAN, All HDD Zones) 1.28E-11 -7.46E-11 1.00E-10 6.24E-11 209Dibenzo-p-dioxin Other, RNF/S/U, All HDD Zones 1.37E-11 -1.01E-10 1.02E-10 1.19E-10 595Other, RF, All HDD Zones 4.18E-11 -9.86E-11 1.56E-10 2.19E-10 185Single, S, Low HDD Zone 1.05E-10 -7.69E-11 2.61E-10 3.27E-10 76Single, RNF, Low HDD Zone 1.50E-10 -8.78E-12 2.83E-10 3.88E-10 117Single, RF, Low HDD Zone 3.01E-10 1.53E-10 4.23E-10 6.37E-10 150Single, S, Med HDD Zone 2.71E-10 8.23E-11 4.35E-10 8.10E-10 68Single, RNF, Med HDD Zone 1.76E-10 4.95E-12 3.21E-10 4.72E-10 92Single, RF, Med HDD Zone 4.16E-10 2.41E-10 5.65E-10 1.10E-09 86Single, S, High HDD Zone 2.23E-10 2.68E-11 3.94E-10 6.84E-10 61Single, RNF, High HDD Zone 5.05E-10 3.31E-10 6.53E-10 1.17E-09 87Single, RF, High HDD Zone 6.28E-10 4.83E-10 7.46E-10 1.48E-09 1661.70E-10 . . 6.73E-10 18921,2,3,4,6,7,8-Heptachloro Intercept (SFH,URBAN, All HDD Zones) 1.76E-11 -1.04E-10 1.39E-10 8.04E-11 209Dibenzo-p-dioxin Other, RNF/S/U, All HDD Zones 1.90E-11 -1.40E-10 1.43E-10 1.62E-10 595Other, RF, All HDD Zones 5.77E-11 -1.37E-10 2.17E-10 3.00E-10 185Single, S, Low HDD Zone 1.53E-10 -9.98E-11 3.71E-10 4.83E-10 76Single, RNF, Low HDD Zone 2.04E-10 -1.65E-11 3.89E-10 5.24E-10 117Single, RF, Low HDD Zone 4.28E-10 2.22E-10 5.98E-10 9.21E-10 150Single, S, Med HDD Zone 3.76E-10 1.13E-10 6.03E-10 1.11E-09 68Single, RNF, Med HDD Zone 2.43E-10 5.92E-12 4.46E-10 6.69E-10 92Single, RF, Med HDD Zone 5.71E-10 3.28E-10 7.78E-10 1.56E-09 86Single, S, High HDD Zone 2.83E-10 9.40E-12 5.21E-10 8.44E-10 61Single, RNF, High HDD Zone 7.04E-10 4.62E-10 9.11E-10 1.60E-09 87Single, RF, High HDD Zone 8.68E-10 6.67E-10 1.03E-09 2.07E-09 1662.35E-10 . . 9.35E-10 1892Octachloro- Intercept (SFH,URBAN, All HDD Zones) 5.26E-11 -3.50E-10 4.55E-10 2.22E-10 209Dibenzo-p-dioxin Other, RNF/S/U, All HDD Zones 5.86E-11 -4.62E-10 4.74E-10 5.24E-10 595Other, RF, All HDD Zones 1.74E-10 -4.66E-10 7.09E-10 9.79E-10 185Single, S, Low HDD Zone 5.48E-10 -2.84E-10 1.27E-09 1.80E-09 76A-18

Pollutant Category Mean Lower Bound Upper Bound Standard Deviation NSingle, RNF, Low HDD Zone 5.86E-10 -1.38E-10 1.21E-09 1.67E-09 117Single, RF, Low HDD Zone 1.43E-09 7.52E-10 2.00E-09 3.33E-09 150Single, S, Med HDD Zone 1.15E-09 2.83E-10 1.91E-09 3.47E-09 68Single, RNF, Med HDD Zone 7.43E-10 -3.81E-11 1.42E-09 2.35E-09 92Single, RF, Med HDD Zone 1.69E-09 8.91E-10 2.38E-09 5.44E-09 86Single, S, High HDD Zone 5.86E-10 -3.13E-10 1.38E-09 1.82E-09 61Single, RNF, High HDD Zone 2.20E-09 1.41E-09 2.89E-09 4.97E-09 87Single, RF, High HDD Zone 2.64E-09 1.98E-09 3.19E-09 6.89E-09 1667.18E-10 . . 3.08E-09 18922,3,7,8-Tetrachloro- Intercept (SFH,URBAN, All HDD Zones) 5.15E-11 -3.10E-10 4.13E-10 3.21E-10 209Dibenzofuran Other, RNF/S/U, All HDD Zones 5.34E-11 -4.18E-10 4.22E-10 5.32E-10 595Other, RF, All HDD Zones 1.66E-10 -4.13E-10 6.42E-10 9.70E-10 185Single, S, Low HDD Zone 3.42E-10 -4.10E-10 9.90E-10 1.02E-09 76Single, RNF, Low HDD Zone 6.22E-10 -3.30E-11 1.17E-09 1.79E-09 117Single, RF, Low HDD Zone 1.08E-09 4.65E-10 1.58E-09 2.29E-09 150Single, S, Med HDD Zone 1.07E-09 2.86E-10 1.74E-09 3.46E-09 68Single, RNF, Med HDD Zone 6.92E-10 -1.36E-11 1.29E-09 1.87E-09 92Single, RF, Med HDD Zone 1.68E-09 9.61E-10 2.30E-09 4.24E-09 86Single, S, High HDD Zone 1.13E-09 3.13E-10 1.83E-09 3.75E-09 61Single, RNF, High HDD Zone 1.94E-09 1.22E-09 2.56E-09 5.06E-09 87Single, RF, High HDD Zone 2.48E-09 1.88E-09 2.97E-09 6.06E-09 1666.68E-10 . . 2.77E-09 18921,2,3,7,8-Pentachloro- Intercept (SFH,URBAN, All HDD Zones) 1.79E-11 -1.10E-10 1.46E-10 1.19E-10 209Dibenzofuran Other, RNF/S/U, All HDD Zones 1.84E-11 -1.49E-10 1.50E-10 1.93E-10 595Other, RF, All HDD Zones 5.75E-11 -1.48E-10 2.27E-10 3.51E-10 185Single, S, Low HDD Zone 1.12E-10 -1.55E-10 3.42E-10 3.28E-10 76Single, RNF, Low HDD Zone 2.18E-10 -1.43E-11 4.14E-10 6.54E-10 117Single, RF, Low HDD Zone 3.62E-10 1.46E-10 5.43E-10 7.86E-10 150Single, S, Med HDD Zone 3.69E-10 9.19E-11 6.10E-10 1.23E-09 68Single, RNF, Med HDD Zone 2.39E-10 -1.09E-11 4.53E-10 6.62E-10 92Single, RF, Med HDD Zone 5.86E-10 3.30E-10 8.05E-10 1.49E-09 86Single, S, High HDD Zone 4.11E-10 1.23E-10 6.63E-10 1.40E-09 61Single, RNF, High HDD Zone 6.67E-10 4.12E-10 8.86E-10 1.81E-09 87Single, RF, High HDD Zone 8.58E-10 6.47E-10 1.03E-09 2.14E-09 1662.31E-10 . . 9.82E-10 1892A-19

Pollutant Category Mean Lower Bound Upper Bound Standard Deviation N2,3,4,7,8-Pentachloro- Intercept (SFH,URBAN, All HDD Zones) 2.45E-11 -1.54E-10 2.03E-10 1.70E-10 209Dibenzofuran Other, RNF/S/U, All HDD Zones 2.51E-11 -2.07E-10 2.09E-10 2.72E-10 595Other, RF, All HDD Zones 7.86E-11 -2.07E-10 3.15E-10 4.95E-10 185Single, S, Low HDD Zone 1.46E-10 -2.25E-10 4.68E-10 4.27E-10 76Single, RNF, Low HDD Zone 3.00E-10 -2.32E-11 5.74E-10 9.28E-10 117Single, RF, Low HDD Zone 4.85E-10 1.84E-10 7.38E-10 1.07E-09 150Single, S, Med HDD Zone 5.03E-10 1.18E-10 8.40E-10 1.72E-09 68Single, RNF, Med HDD Zone 3.26E-10 -2.19E-11 6.25E-10 9.22E-10 92Single, RF, Med HDD Zone 8.03E-10 4.47E-10 1.11E-09 2.06E-09 86Single, S, High HDD Zone 5.82E-10 1.81E-10 9.34E-10 2.00E-09 61Single, RNF, High HDD Zone 9.06E-10 5.52E-10 1.21E-09 2.52E-09 87Single, RF, High HDD Zone 1.17E-09 8.79E-10 1.42E-09 2.98E-09 1663.15E-10 . . 1.37E-09 18921,2,3,4,7,8-Hexachloro- Intercept (SFH,URBAN, All HDD Zones) 1.97E-11 -1.16E-10 1.55E-10 8.99E-11 209Dibenzofuran Other, RNF/S/U, All HDD Zones 2.12E-11 -1.56E-10 1.59E-10 1.81E-10 595Other, RF, All HDD Zones 6.43E-11 -1.53E-10 2.42E-10 3.34E-10 185Single, S, Low HDD Zone 1.71E-10 -1.12E-10 4.13E-10 5.38E-10 76Single, RNF, Low HDD Zone 2.28E-10 -1.81E-11 4.34E-10 5.85E-10 117Single, RF, Low HDD Zone 4.77E-10 2.48E-10 6.67E-10 1.03E-09 150Single, S, Med HDD Zone 4.19E-10 1.26E-10 6.73E-10 1.24E-09 68Single, RNF, Med HDD Zone 2.71E-10 6.70E-12 4.97E-10 7.45E-10 92Single, RF, Med HDD Zone 6.37E-10 3.66E-10 8.68E-10 1.73E-09 86Single, S, High HDD Zone 3.17E-10 1.19E-11 5.82E-10 9.46E-10 61Single, RNF, High HDD Zone 7.85E-10 5.16E-10 1.02E-09 1.79E-09 87Single, RF, High HDD Zone 9.68E-10 7.44E-10 1.15E-09 2.31E-09 1662.62E-10 . . 1.04E-09 18921,2,3,6,7,8-Hexachloro- Intercept (SFH,URBAN, All HDD Zones) 1.07E-11 -6.23E-11 8.38E-11 5.48E-11 209Dibenzofuran Other, RNF/S/U, All HDD Zones 1.14E-11 -8.42E-11 8.56E-11 1.01E-10 595Other, RF, All HDD Zones 3.49E-11 -8.24E-11 1.31E-10 1.85E-10 185Single, S, Low HDD Zone 8.45E-11 -6.76E-11 2.15E-10 2.61E-10 76Single, RNF, Low HDD Zone 1.26E-10 -6.26E-12 2.38E-10 3.31E-10 117Single, RF, Low HDD Zone 2.46E-10 1.23E-10 3.49E-10 5.18E-10 150Single, S, Med HDD Zone 2.26E-10 6.82E-11 3.63E-10 6.83E-10 68Single, RNF, Med HDD Zone 1.47E-10 3.78E-12 2.68E-10 3.90E-10 92Single, RF, Med HDD Zone 3.49E-10 2.03E-10 4.73E-10 9.03E-10 86A-20

Pollutant Category Mean Lower Bound Upper Bound Standard Deviation NSingle, S, High HDD Zone 1.97E-10 3.26E-11 3.40E-10 6.13E-10 61Single, RNF, High HDD Zone 4.19E-10 2.74E-10 5.43E-10 9.91E-10 87Single, RF, High HDD Zone 5.24E-10 4.03E-10 6.23E-10 1.24E-09 1661.42E-10 . . 5.62E-10 18921,2,3,7,8,9-Hexachloro- Intercept (SFH,URBAN, All HDD Zones) 9.82E-12 -5.70E-11 7.66E-11 4.93E-11 209Dibenzofuran Other, RNF/S/U, All HDD Zones 1.05E-11 -7.70E-11 7.83E-11 9.17E-11 595Other, RF, All HDD Zones 3.19E-11 -7.53E-11 1.20E-10 1.69E-10 185Single, S, Low HDD Zone 7.83E-11 -6.08E-11 1.98E-10 2.42E-10 76Single, RNF, Low HDD Zone 1.15E-10 -5.99E-12 2.17E-10 3.01E-10 117Single, RF, Low HDD Zone 2.27E-10 1.14E-10 3.20E-10 4.78E-10 150Single, S, Med HDD Zone 2.07E-10 6.26E-11 3.32E-10 6.23E-10 68Single, RNF, Med HDD Zone 1.34E-10 3.62E-12 2.45E-10 3.58E-10 92Single, RF, Med HDD Zone 3.19E-10 1.85E-10 4.33E-10 8.29E-10 86Single, S, High HDD Zone 1.77E-10 2.69E-11 3.08E-10 5.48E-10 61Single, RNF, High HDD Zone 3.84E-10 2.51E-10 4.98E-10 9.03E-10 87Single, RF, High HDD Zone 4.79E-10 3.69E-10 5.70E-10 1.13E-09 1661.30E-10 . . 5.14E-10 18922,3,4,6,7,8-Hexachloro- Intercept (SFH,URBAN, All HDD Zones) 8.61E-12 -5.02E-11 6.74E-11 4.13E-11 209Dibenzofuran Other, RNF/S/U, All HDD Zones 9.23E-12 -6.77E-11 6.89E-11 7.95E-11 595Other, RF, All HDD Zones 2.81E-11 -6.63E-11 1.05E-10 1.47E-10 185Single, S, Low HDD Zone 7.15E-11 -5.09E-11 1.77E-10 2.23E-10 76Single, RNF, Low HDD Zone 1.00E-10 -6.29E-12 1.90E-10 2.59E-10 117Single, RF, Low HDD Zone 2.04E-10 1.04E-10 2.86E-10 4.33E-10 150Single, S, Med HDD Zone 1.83E-10 5.53E-11 2.93E-10 5.43E-10 68Single, RNF, Med HDD Zone 1.18E-10 3.32E-12 2.16E-10 3.19E-10 92Single, RF, Med HDD Zone 2.79E-10 1.62E-10 3.79E-10 7.40E-10 86Single, S, High HDD Zone 1.47E-10 1.51E-11 2.62E-10 4.48E-10 61Single, RNF, High HDD Zone 3.40E-10 2.23E-10 4.40E-10 7.86E-10 87Single, RF, High HDD Zone 4.22E-10 3.25E-10 5.02E-10 9.99E-10 1661.14E-10 . . 4.53E-10 18921,2,3,4,6,7,8-Heptachloro Intercept (SFH,URBAN, All HDD Zones) 1.72E-11 -1.02E-10 1.36E-10 7.69E-11 209Dibenzofuran Other, RNF/S/U, All HDD Zones 1.86E-11 -1.37E-10 1.40E-10 1.58E-10 595Other, RF, All HDD Zones 5.63E-11 -1.35E-10 2.13E-10 2.93E-10 185Single, S, Low HDD Zone 1.52E-10 -9.57E-11 3.66E-10 4.83E-10 76Single, RNF, Low HDD Zone 1.98E-10 -1.80E-11 3.80E-10 5.10E-10 117A-21

Pollutant Category Mean Lower Bound Upper Bound Standard Deviation NSingle, RF, Low HDD Zone 4.22E-10 2.21E-10 5.90E-10 9.15E-10 150Single, S, Med HDD Zone 3.67E-10 1.10E-10 5.91E-10 1.08E-09 68Single, RNF, Med HDD Zone 2.38E-10 4.99E-12 4.36E-10 6.61E-10 92Single, RF, Med HDD Zone 5.56E-10 3.18E-10 7.60E-10 1.54E-09 86Single, S, High HDD Zone 2.67E-10 -7.71E-13 5.01E-10 7.92E-10 61Single, RNF, High HDD Zone 6.90E-10 4.53E-10 8.93E-10 1.56E-09 87Single, RF, High HDD Zone 8.47E-10 6.51E-10 1.01E-09 2.03E-09 1662.30E-10 . . 9.18E-10 18921,2,3,4,7,8,9-Heptachloro Intercept (SFH,URBAN, All HDD Zones) 1.19E-11 -6.94E-11 9.33E-11 5.83E-11 209Dibenzofuran Other, RNF/S/U, All HDD Zones 1.28E-11 -9.37E-11 9.54E-11 1.11E-10 595Other, RF, All HDD Zones 3.89E-11 -9.17E-11 1.46E-10 2.04E-10 185Single, S, Low HDD Zone 9.76E-11 -7.18E-11 2.43E-10 3.04E-10 76Single, RNF, Low HDD Zone 1.40E-10 -8.08E-12 2.63E-10 3.61E-10 117Single, RF, Low HDD Zone 2.80E-10 1.42E-10 3.94E-10 5.92E-10 150Single, S, Med HDD Zone 2.53E-10 7.66E-11 4.05E-10 7.54E-10 68Single, RNF, Med HDD Zone 1.64E-10 4.60E-12 2.99E-10 4.39E-10 92Single, RF, Med HDD Zone 3.87E-10 2.25E-10 5.26E-10 1.02E-09 86Single, S, High HDD Zone 2.09E-10 2.57E-11 3.68E-10 6.39E-10 61Single, RNF, High HDD Zone 4.70E-10 3.08E-10 6.08E-10 1.09E-09 87Single, RF, High HDD Zone 5.84E-10 4.50E-10 6.94E-10 1.38E-09 1661.58E-10 . . 6.26E-10 1892A-22