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

County:      BLACK HAWK


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 73 150
CARBON TETRACHLORIDE 34 0.0200 0.034 0 0
BENZENE 27 0.0150.064 4.5 100 18
CHROMIUM 14 0.0120.025 0.20 0.0033 0.011
1,3-BUTADIENE 8.0 0.00230 0.36 14 2.4
POLYCYCLIC ORGANIC MATTER (POM) 5.4 --0.00030 3.5 0.023 0.0057
FORMALDEHYDE 3.3 0.180.012 3.0 46 33
TETRACHLOROETHYLENE 1.4 0.00610.0021 28 0 0
1,2-DICHLOROETHANE 1.2 0.000140.0020 0.0016 0 0
1,3-DICHLOROPROPENE (MIXED ISOMERS) 0.73 0.00230 9.8 0 0
ACETALDEHYDE 0.68 0.0280.028 0.38 15 16
1,2-DIBROMOETHANE 0.51 0.00890 0.0000014 0 0
CHLOROFORM 0.40 0.000250 0.26 0 0
ETHYLENE OXIDE 0.31 0.000120 0.59 0 0
DICHLOROMETHANE 0.27 0.000680.014 26 0 0
TRICHLOROETHYLENE 0.23 0.000190 7.7 0 0
ARSENIC 0.13 0.00130.020 0.0065 0.000061 0.0000077
NICKEL 0.12 0.00920.024 0.083 0.0026 0.0060
HEXACHLOROBENZENE 0.044 0.0000290 0.000064 0 0
CADMIUM 0.022 0.000620.0025 0.0022 0 0
BERYLLIUM 0.017 0.00690.0010 0.0012 0 0
ACRYLONITRILE 0.0080 0.0000140 0.010 0 0
LEAD 0.0030 0.00140.021 0.036 0.0046 0.018
HYDRAZINE 0 0.0000000170 0.00000076 0 0
1,2-DICHLOROPROPANE 0 0.000000290 0.00038 0 0
1,1,2,2-TETRACHLOROETHANE 0 0.000000000670 0.000055 0 0
QUINOLINE 0 --0 0.0000018 0 0
VINYL CHLORIDE 0 0.00000100 0.00026 0 0
MERCURY -- 0.000300.0041 0.0048 0.000046 0.0030
MANGANESE -- 0.0100.046 0.37 0.0014 0.013
ACROLEIN -- 0.540.014 1.0 2.5 2.7

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).