POLLUTION LOCATOR|Hazardous Air Pollutants | Source Categories Contributing to Chemical-specific Risks

County:      RIPLEY


HAP Sort by Added Cancer Risk (per 1,000,000) Sort by Noncancer Hazard Index Percent Emitted from Point Sources Percent Emitted from Area Sources Percent Emitted from Mobile Sources Percent from Background Levels

DIESEL EMISSIONS 360 0.24 0% 0% 23% 77%
CARBON TETRACHLORIDE 39 0.023 0.000036% 0.0049% 0% 100%
BENZENE 20 0.011 0.21% 3.5% 22% 74%
CHROMIUM 11 0.0092 17% 80% 2.5% 0%
POLYCYCLIC ORGANIC MATTER (POM) 8.4 -- 0.016% 100% 0.37% 0%
FORMALDEHYDE 2.8 0.16 0.23% 12% 30% 57%
1,3-BUTADIENE 2.5 0.00074 0.38% 24% 75% 0%
1,2-DICHLOROETHANE 1.4 0.00016 0.00043% 0.035% 0% 100%
TETRACHLOROETHYLENE 0.92 0.0039 0.11% 4.9% 0% 95%
1,2-DIBROMOETHANE 0.58 0.010 0% 0.0021% 0% 100%
CHLOROFORM 0.45 0.00028 0% 0.32% 0% 100%
ACRYLONITRILE 0.43 0.00075 87% 13% 0% 0%
ACETALDEHYDE 0.39 0.016 0.0022% 15% 85% 0%
TRICHLOROETHYLENE 0.32 0.00027 43% 1.4% 0% 55%
POLYCHLORINATED BIPHENYLS 0.23 0.00034 0% 0.00017% 0% 100%
DICHLOROMETHANE 0.21 0.00051 13% 9.2% 0% 78%
NICKEL 0.18 0.014 4.4% 92% 3.9% 0%
1,3-DICHLOROPROPENE (MIXED ISOMERS) 0.14 0.00044 0% 100% 0% 0%
ARSENIC 0.094 0.00095 10% 88% 2.0% 0%
HEXACHLOROBENZENE 0.050 0.000033 0% 0.10% 0% 100%
CADMIUM 0.041 0.0011 6.9% 93% 0.16% 0%
ETHYLENE OXIDE 0.036 0.000014 0% 100% 0% 0%
VINYL CHLORIDE 0.026 0.000066 0.037% 100% 0% 0%
LEAD 0.012 0.0069 49% 31% 20% 0%
1,1,2,2-TETRACHLOROETHANE 0.0050 0.000000032 0% 100% 0% 0%
BERYLLIUM 0.0030 0.0014 8.8% 91% 0.20% 0%
QUINOLINE 0 -- 0% 100% 0% 0%
1,2-DICHLOROPROPANE 0 0.0000027 0% 100% 0% 0%
HYDRAZINE 0 0.000000075 0% 100% 0% 0%
ACROLEIN -- 0.47 1.2% 45% 54% 0%
XYLENE (MIXED ISOMERS) -- 0.00064 9.7% 7.4% 43% 40%
ETHYLBENZENE -- 0.000033 8.5% 11% 81% 0%
N-HEXANE -- 0.000011 4.8% 36% 60% 0%
TOLUENE -- 0.0016 16% 14% 69% 0%
STYRENE -- 0.0000064 9.1% 2.0% 89% 0%
MANGANESE -- 0.0051 10% 88% 1.7% 0%
MERCURY -- 0.00047 5.1% 89% 6.0% 0%
METHYL TERT-BUTYL ETHER -- 0.0000028 0% 8.0% 92% 0%

See the 1996 emissions data EPA used to estimate exposures from these source categories