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HUNTERDON COUNTY

Hunterdon County Average 1996 NATA Modeled Air Concentrations Compared to Health Benchmarks
Pollutant Modeled Air Concentration (ug/m3) Health Benchmark (ug/m3) Risk Ratio % Contribution by Source Category
Point Area Onroad Mobile Nonroad Mobile Background
Acetaldehyde 0.57 0.45 1 0.01% 7% 65% 27% 0%
Acrolein 0.066 0.02 3 0.01% 12% 61% 26% 0%
Acrylonitrile 0.00087 0.015 0.06 80% 20% 0% 0% 0%
Arsenic compounds 0.000037 0.00023 0.2 26% 72% 1% 1% 0%
Benzene 0.98 0.13 8 0.3% 2% 33% 15% 49%
Beryllium compounds 0.0000074 0.00042 0.02 7% 93% 0% 0.02% 0%
1,3-Butadiene 0.024 0.0036 7 0.0001% 1% 84% 14% 0%
Cadmium compounds 0.000049 0.00029 0.2 19% 81% 0% 0.03% 0%
Carbon tetrachloride 0.88 0.067 13 0.0001% 0.03% 0% 0% 100%
Chloroform 0.17 0.043 4 48% 1% 0% 0% 50%
Chromium compounds 0.00087 0.00025 4 7% 84% 3% 6% 0%
Coke oven emissions 0.000067 0.0016 0.04 100% 0% 0% 0% 0%
1,3-Dichloropropene 0.049 0.25 0.2 0% 100% 0% 0% 0%
Diesel particulate matter 2.9 0.5 6 0% 0% 35% 65% ***
Ethylene dibromide 0.0077 0.0045 2 0.01% 0.004% 0% 0% 100%
Ethylene dichloride 0.062 0.038 2 2% 0.05% 0% 0% 98%
Ethylene oxide 0.0026 0.011 0.2 11% 89% 0% 0% 0%
Formaldehyde 0.89 0.077 12 0.04% 7% 36% 29% 28%
Hexachlorobenzene 0.000093 0.0022 0.04 0% 0.1% 0% 0% 100%
Hydrazine 0.0000020 0.0002 0.01 92% 8% 0% 0% 0%
Lead compounds 0.00090 0.1 0.01 22% 69% 4% 5% 0%
Manganese compounds 0.0011 0.05 0.02 2% 92% 1% 5% 0%
Mercury compounds 0.0018 0.3 0.01 1% 15% 0.02% 1% 82%
Methylene chloride 0.34 2.1 0.2 16% 40% 0% 0% 44%
Nickel compounds 0.0010 0.0032 0.3 3% 92% 2% 3% 0%
Perchloroethylene 0.21 0.17 1 1% 31% 0% 0% 68%
Polychlorinated biphenyls 0.00038 0.01 0.04 0% 0.04% 0% 0% 100%
Polycyclic organic matter 0.041 0.018 2 1% 99% 0.5% 0.1% 0%
7-PAH 0.0023 0.0051 0.5 0.02% 96% 4% 1% 0%
Propylene dichloride 0.000052 0.053 0.001 80% 20% 0% 0% 0%
Quinoline 0.00000030 0.00029 0.001 0% 100% 0% 0% 0%
1,1,2,2-Tetrachloroethane 0.00043 0.017 0.02 90% 10% 0% 0% 0%
Trichloroethylene 0.12 0.5 0.2 16% 17% 0% 0% 67%
Vinyl chloride 0.0021 0.11 0.02 89% 11% 0% 0% 0%

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Last Updated: March 18, 2011