POLLUTION LOCATOR|Hazardous Air Pollutants | 1996 Emissions Data Used to Estimate Exposures

County:      WORCESTER


HAP Sorted by Added Cancer Risk (per 1,000,000) Noncancer Hazard Index
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Emissions from Point Sources (tons/yr)
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Emissions from Area Soucres (tons/yr)
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Emissions from Onroad Mobile Sources (tons/yr)
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Emissions from Nonroad Mobile Sources (tons/yr)
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DIESEL EMISSIONS 280 0.190 0 30 65
CARBON TETRACHLORIDE 35 0.0210 0.011 0 0
BENZENE 21 0.0120 15 18 50
1,3-BUTADIENE 5.0 0.00150 5.0 2.5 5.3
POLYCYCLIC ORGANIC MATTER (POM) 3.1 --0 2.1 0.055 0.022
FORMALDEHYDE 3.0 0.170 32 12 17
1,2-DICHLOROETHANE 1.3 0.000140 0.0028 0 0
TETRACHLOROETHYLENE 0.94 0.00400 6.2 0 0
CHROMIUM 0.82 0.000680 0.0013 0.0079 0.0038
1,2-DIBROMOETHANE 0.52 0.00920 0.000012 0 0
CHLOROFORM 0.41 0.000260 0.080 0 0
ACETALDEHYDE 0.37 0.0150 5.0 3.6 8.0
1,3-DICHLOROPROPENE (MIXED ISOMERS) 0.26 0.000820 3.3 0 0
DICHLOROMETHANE 0.18 0.000440 6.5 0 0
TRICHLOROETHYLENE 0.16 0.000140 1.2 0 0
ARSENIC 0.049 0.000500 0.0013 0.00015 0.00000065
HEXACHLOROBENZENE 0.045 0.0000300 0.000020 0 0
ETHYLENE OXIDE 0.036 0.0000140 0.062 0 0
ACRYLONITRILE 0.030 0.0000520 0.025 0 0
NICKEL 0.028 0.00220 0.017 0.0062 0.0020
VINYL CHLORIDE 0.0090 0.0000240 0.029 0 0
CADMIUM 0.0070 0.000190 0.00055 0 0
BERYLLIUM 0.0050 0.00230 0.00037 0 0
LEAD 0.0030 0.00190 0.0061 0.011 0
1,1,2,2-TETRACHLOROETHANE 0.0030 0.0000000170 0.012 0 0
1,2-DICHLOROPROPANE 0 0.00000150 0.0014 0 0
MANGANESE -- 0.00150 0.052 0.0034 0.0042
MERCURY -- 0.000150 0.0013 0.00011 0.0010
ACROLEIN -- 0.630 5.4 0.94 1.3

NOTE: The National-Scale Air Toxics Assessment (NATA) provides only aggregate data on 1996 point source releases in an area. To help identify sepcific companies which may be responsible for these releases, Scorecard disaggregates summary point source data to facility-level data based on the 2002 Toxics Releases Inventory (TRI). NATA and TRI data for an area often differ, because they involve different reporting years (1996 vs. 2002) and aggregation methods (NATA often includes point source emissions from outside geopolitical boundaries, since these can impact estimated exposures in an area).