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

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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 310 0.210 0 32 22
CARBON TETRACHLORIDE 37 0.0220 0.0073 0 0
BENZENE 21 0.0120 6.0 19 10
1,3-BUTADIENE 4.2 0.00120 1.9 3.1 1.4
FORMALDEHYDE 3.2 0.180 12 9.5 7.3
POLYCYCLIC ORGANIC MATTER (POM) 2.6 --0 0.97 0.016 0.0035
1,2-DICHLOROETHANE 1.3 0.000150 0.0032 0 0
TETRACHLOROETHYLENE 0.89 0.00380 1.2 0 0
1,2-DIBROMOETHANE 0.55 0.00970 0.000014 0 0
ACETALDEHYDE 0.49 0.0200 1.9 3.3 3.5
CHROMIUM 0.48 0.000400 0.00068 0.0023 0.0021
CHLOROFORM 0.43 0.000270 0.040 0 0
1,3-DICHLOROPROPENE (MIXED ISOMERS) 0.22 0.000670 1.8 0 0
DICHLOROMETHANE 0.18 0.000450 3.2 0 0
TRICHLOROETHYLENE 0.17 0.000140 0.26 0 0
HEXACHLOROBENZENE 0.048 0.0000310 0.0000089 0 0
ACRYLONITRILE 0.037 0.0000640 0.027 0 0
ETHYLENE OXIDE 0.036 0.0000140 0.031 0 0
NICKEL 0.032 0.00250 0.012 0.0018 0.0011
ARSENIC 0.028 0.000290 0.00068 0.000042 0.0000012
CADMIUM 0.012 0.000320 0.00028 0 0
VINYL CHLORIDE 0.012 0.0000310 0.034 0 0
BERYLLIUM 0.0040 0.00160 0.00017 0 0
1,1,2,2-TETRACHLOROETHANE 0.0040 0.0000000230 0.014 0 0
LEAD 0.0020 0.00120 0.0049 0.0032 0
1,2-DICHLOROPROPANE 0 0.00000190 0.0016 0 0
ACROLEIN -- 0.770 2.1 0.49 0.57
MANGANESE -- 0.00210 0.021 0.00098 0.0024
MERCURY -- 0.000460 0.00044 0.000032 0.00057

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).