MERCER
COUNTY
Mercer
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 |
1.1 |
0.45 |
2 |
0.02% |
10% |
61% |
29% |
0% |
Acrolein |
0.14 |
0.02 |
7 |
0.004% |
12% |
61% |
28% |
0% |
Acrylonitrile |
0.0026 |
0.015 |
0.2 |
82% |
18% |
0% |
0% |
0% |
Arsenic
compounds |
0.000092 |
0.00023 |
0.4 |
14% |
82% |
1% |
3% |
0% |
Benzene |
1.8 |
0.13 |
14 |
0.5% |
3% |
54% |
17% |
26% |
Beryllium
compounds |
0.000022 |
0.00042 |
0.05 |
3% |
96% |
0% |
0.1% |
0% |
1,3-Butadiene |
0.091 |
0.0036 |
25 |
0.0001% |
0.4% |
89% |
11% |
0% |
Cadmium
compounds |
0.00013 |
0.00029 |
0.4 |
5% |
95% |
0% |
0.2% |
0% |
Carbon
tetrachloride |
0.88 |
0.067 |
13 |
0.0004% |
0.1% |
0% |
0% |
100% |
Chloroform |
0.090 |
0.043 |
2 |
0.1% |
7% |
0% |
0% |
92% |
Chromium
compounds |
0.0021 |
0.00025 |
9 |
41% |
49% |
3% |
7% |
0% |
Coke
oven emissions |
0 |
0.0016 |
0 |
0% |
0% |
0% |
0% |
0% |
1,3-Dichloropropene |
0.15 |
0.25 |
0.6 |
0% |
100% |
0% |
0% |
0% |
Diesel
particulate matter |
4.0 |
0.5 |
8 |
0% |
0% |
33% |
67% |
*** |
Ethylene
dibromide |
0.0077 |
0.0045 |
2 |
0.02% |
0.01% |
0% |
0% |
100% |
Ethylene
dichloride |
0.069 |
0.038 |
2 |
11% |
0.1% |
0% |
0% |
89% |
Ethylene
oxide |
0.0054 |
0.011 |
0.5 |
16% |
84% |
0% |
0% |
0% |
Formaldehyde |
1.6 |
0.077 |
21 |
0.1% |
7% |
44% |
34% |
15% |
Hexachlorobenzene |
0.000093 |
0.0022 |
0.04 |
0% |
0.3% |
0% |
0% |
100% |
Hydrazine |
0.0000053 |
0.0002 |
0.03 |
98% |
2% |
0% |
0% |
0% |
Lead
compounds |
0.0019 |
0.1 |
0.02 |
3% |
88% |
5% |
4% |
0% |
Manganese
compounds |
0.0023 |
0.05 |
0.05 |
3% |
89% |
1% |
6% |
0% |
Mercury
compounds |
0.0023 |
0.3 |
0.01 |
2% |
29% |
0.04% |
2% |
66% |
Methylene
chloride |
0.59 |
2.1 |
0.3 |
2% |
72% |
0% |
0% |
26% |
Nickel
compounds |
0.0019 |
0.0032 |
0.6 |
1% |
90% |
3% |
7% |
0% |
Perchloroethylene |
0.29 |
0.17 |
2 |
1% |
51% |
0% |
0% |
48% |
Polychlorinated
biphenyls |
0.00038 |
0.01 |
0.04 |
0% |
0.4% |
0% |
0% |
100% |
Polycyclic
organic matter |
0.12 |
0.018 |
7 |
3% |
98% |
0.3% |
0.04% |
0% |
7-PAH |
0.0064 |
0.0051 |
1 |
0.03% |
97% |
3% |
0.3% |
0% |
Propylene
dichloride |
0.00015 |
0.053 |
0.003 |
82% |
19% |
0% |
0% |
0% |
Quinoline |
0.00000084 |
0.00029 |
0.003 |
0% |
100% |
0% |
0% |
0% |
1,1,2,2-Tetrachloroethane |
0.0013 |
0.017 |
0.07 |
90% |
10% |
0% |
0% |
0% |
Trichloroethylene |
0.18 |
0.5 |
0.4 |
17% |
38% |
0% |
0% |
45% |
Vinyl
chloride |
0.010 |
0.11 |
0.09 |
90% |
10% |
0% |
0% |
0% |
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