ATLANTIC
COUNTY
Atlantic County Average 2011 NATA Modeled Air Concentrations Compared to Health Benchmarks |
Pollutant |
Modeled
Air Concentration (ug/m3) |
Health
Benchmark (ug/m3) |
Risk
Ratio |
%
Contribution from |
Point Sources |
Nonpoint
Sources |
On-road
Mobile Sources |
Nonroad
Mobile Sources |
Background & Secondary |
Acetaldehyde |
1.4 |
0.45 |
3.1 |
<1% |
1% |
4% |
2% |
93%* |
Acrolein |
0.013 |
0.020 |
0.7 |
3% |
17% |
41% |
16% |
23%* |
Acrylonitrile |
0.00058 |
0.015 |
0.04 |
3% |
24% |
29% |
43% |
<1% |
Arsenic compounds |
0.0001 |
0.00023 |
0.4 |
3% |
10% |
5% |
10% |
72% |
Benzene |
0.66 |
0.13 |
5.1 |
<1% |
18% |
54% |
26% |
2% |
1,3-Butadiene |
0.044 |
0.033 |
1.3 |
1% |
17% |
58% |
22% |
2% |
Cadmium Compounds |
0.000037 |
0.00024 |
0.2 |
26% |
72% |
0% |
2% |
<1% |
Carbon Tetrachloride |
0.55 |
0.17 |
3.2 |
0% |
0% |
0% |
0% |
100% |
Chromium (hexavalent form) |
0.000056 |
0.000083 |
0.7 |
41% |
29% |
1% |
28% |
<1% |
Diesel Particulate Matter |
0.61 |
0.0033 |
186 |
0% |
0% |
30% |
70% |
0% |
Ethylbenzene |
0.14 |
0.4 |
0.4 |
<1% |
9% |
57% |
23% |
11% |
Ethylene dibromide |
0.0071 |
0.011 |
0.6 |
<1% |
13% |
0% |
0% |
87% |
Ethylene oxide |
0.0071 |
0.011 |
0.6 |
<1% |
13% |
0% |
0% |
87% |
Formaldehyde |
1.5 |
0.077 |
20 |
0% |
2% |
4% |
2% |
92%* |
Hydrazine |
1.2 |
0.56 |
2.1 |
0% |
<1% |
0% |
0% |
100% |
Naphthalene |
0.047 |
0.029 |
1.6 |
<1% |
43% |
20% |
3% |
34% |
Nickel compounds |
0.00043 |
0.0021 |
0.2 |
7% |
14% |
2% |
67% |
10% |
Trichloroethylene |
3.4E-7 |
0.063 |
5.2E-6 |
<1% |
100% |
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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