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State of New Jersey Department of Environmental Protection
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STATEWIDE

New Jersey Statewide Average 2005 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

1.9 0.45 4.3 <1% 4% 6% 3% 87%*
0.062 0.020 3.1 <1% 22% 14% 9% 55%*
0.0005 0.00023 2.3 3% 13% 5% 5% 74%
1.3 0.13 10 <1% 13% 30% 13% 44%
0.095 0.033 2.9 <1% <1% 40% 17% 43%
0.00011 0.00024 0.5 12% 44% 0% 1% 43%
0.61 0.067 9.1 0% <1% 0% 0% 100%
0.13 0.043 3.1 <1% 54% 0% 0% 46%
0.00024 0.000083 2.9 29% 10% 4% 1% 56%
0.000093 0.00011 0.8 93% 7% 0% 0% 0%
0.12 0.091 1.3 <1% 58% 0% 0% 42%
0.14 0.25 0.5 0% 100% 0% 0% 0%
1.1 0.0033 327 0% 0% 47% 53% 0%
0.34 0.40 0.9 1% 30% 45% 24% 0%
0.011 0.011 1 12% 18% 0% 0% 70%
2.2 0.077 28 <1% 3% 9% 6% 82%*
1.2 0.56 2.2 <1% 1% 0% 0% 99%
0.13 0.029 4.6 1% 48% 26% 4% 21%
36% 37% 2% 10% 15%
0.012 0.0072** 1.6 1% 79% 8% 12% 0%
0.25 0.17 1.4 <1% 61% 0% 0% 39%
0.0066 0.063 0.1 <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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    Last Updated: March 28, 2011