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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