STATEWIDE
New
Jersey Statewide Average 2011 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 Sources |
Nonpoint Sources |
Onroad
Mobile |
Nonroad
Mobile |
Background& Secondary |
Acetaldehyde |
1.9 |
0.45 |
4.2 |
<1% |
2% |
9% |
4% |
84%* |
Acrolein |
0.038 |
0.020 |
1.9 |
11% |
15% |
45% |
16% |
13%* |
Acrylonitrile |
0.00055 |
0.015 |
0.4 |
94% |
6% |
0% |
0% |
0% |
Arsenic Compounds |
0.00018 |
0.00023 |
0.8 |
3% |
33% |
27% |
37% |
<1% |
Benzene |
1.1 |
0.13 |
8.5 |
1% |
17% |
52% |
29% |
1% |
1,3-Butadiene |
0.12 |
0.033 |
3.6 |
2% |
13% |
56% |
28% |
1% |
Cadmium Compounds |
0.000089 |
0.00024 |
0.4 |
23% |
75% |
0% |
2% |
<1% |
Carbon Tetrachloride |
0.55 |
0.17 |
3.2 |
<1% |
<1% |
0% |
0% |
>99% |
Chromium (hexavalent form) |
0.000083 |
0.000083 |
1.0 |
45% |
28% |
1% |
26% |
<1% |
Diesel Particulate Matter |
1.7 |
0.0033 |
506 |
0% |
0% |
37% |
63% |
0% |
Ethylbenzene |
0.36 |
0.40 |
0.9 |
1% |
13% |
58% |
24% |
4% |
Ethylene dibromide |
0.000061 |
0.0017 |
0.4 |
>99% |
<1% |
0% |
0% |
<1% |
Ethylene Oxide |
0.00043 |
0.011 |
0.4 |
70% |
30% |
0% |
0% |
0% |
Formaldehyde |
1.6 |
0.077 |
21 |
1% |
5% |
9% |
8% |
77%* |
Hydrazine |
0.000048 |
0.0002 |
0.2 |
>99% |
1% |
0% |
0% |
<1% |
Naphthalene |
0.065 |
0.029 |
2.2 |
4% |
26% |
58% |
12% |
0% |
Nickel Compounds |
0.0015 |
0.0021 |
0.7 |
23% |
24% |
4% |
49% |
<1% |
Trichloroethylene |
0.016 |
0.2 |
0.08 |
21% |
79% |
0% |
0% |
0% |
|
Chemicals with risk ratios greater than or equal to 1 are
in bold.
Risk Ratios based on noncarcinogenic effects are in italics.
The symbol ug/m3 is micrograms per cubic meter,
the amount (in micrograms) of a chemical in a cubic
meter of air. This is also known as a concentration.
For diesel particulate matter, onroad and nonroad
concentrations include a model-estimated background
concentration. *Acetaldehyde, acrolein and formaldehyde concentration estimates include secondary formation, which is the process by which chemicals in the air are transformed into other chemicals.
**PAH/POM is "polycyclic aromatic hydrocarbons/polycyclic organic matter." These define a broad class of compounds. The chemicals making up this class were broken up into 8 groups based on toxicity, and each group was assigned a cancer-weighted toxicity estimate. 0.0072 ug/m3 is the health benchmark average across the 8 groups. |
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