HUDSON
COUNTY
HUDSON County Average 2005 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 |
2.6 |
0.45 |
5.8 |
<1% |
8% |
9% |
7% |
76%* |
Acrolein |
0.13 |
0.020 |
6.7 |
<1% |
30% |
12% |
12% |
46%* |
Arsenic Compounds |
0.00076 |
0.00023 |
3.3 |
5% |
28% |
7% |
14% |
46% |
Benzene |
2.3 |
0.13 |
18 |
<1% |
24% |
33% |
19% |
24% |
1,3-Butadiene |
0.13 |
0.033 |
4 |
<1% |
<1% |
44% |
26% |
30% |
Cadmium Compounds |
0.00023 |
0.00024 |
0.9 |
10% |
66% |
0% |
3% |
21% |
Carbon Tetrachloride |
0.61 |
0.067 |
9.2 |
0% |
1% |
0% |
0% |
99% |
Chloroform |
0.21 |
0.043 |
4.8 |
1% |
71% |
0% |
0% |
28% |
Chromium (hexavalent form) |
0.00035 |
0.000083 |
4.2 |
37% |
28% |
6% |
1% |
28% |
Cobalt Compounds |
0.00014 |
0.00011 |
1.3 |
75% |
25% |
0% |
0% |
0% |
1,4-Dichlorobenzene |
0.21 |
0.091 |
2.4 |
1% |
78% |
0% |
0% |
21% |
1,3-Dichloropropene |
0.36 |
0.25 |
1.4 |
0% |
100% |
0% |
0% |
0% |
Diesel Particulate Matter |
3 |
0.0033 |
925 |
0% |
0% |
32% |
68% |
0% |
Ethylbenzene |
1 |
0.4 |
2.5 |
1% |
50% |
30% |
19% |
0% |
Ethylene Oxide |
0.02 |
0.011 |
1.9 |
47% |
15% |
0% |
0% |
38% |
Formaldehyde |
3.1 |
0.077 |
40 |
<1% |
4% |
12% |
14% |
70%* |
Methyl Chloride |
1.2 |
0.56 |
2.2 |
<1% |
1% |
0% |
0% |
99% |
Naphthalene |
0.32 |
0.029 |
11 |
<1% |
65% |
21% |
4% |
10% |
Nickel Compounds |
0.0039 |
0.0021 |
1.8 |
22% |
54% |
1% |
20% |
3% |
PAH/POM |
0.019 |
0.0072** |
2.2 |
1% |
67% |
10% |
22% |
0% |
Perchloroethylene |
0.51 |
0.17 |
3 |
<1% |
87% |
0% |
0% |
13% |
1,1,2-Trichloroethane |
0.000093 |
0.063 |
1.5E-4 |
66% |
34% |
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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