New
Jersey Statewide Average 1999 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
2
0.45
4
2%
4%
57%
11%
26%
Acrolein
0.2
0.020
9
0.2%
27%
53%
19%
0%
Arsenic Compounds
0.002
0.00023
0.7
51%
49%
0%
0%
0%
Benzene
2
0.13
13
0.6%
9%
51%
15%
25%
Bis(2-ethylhexyl)phthalate
2
0.42
4
.2%
.09%
0%
0%
100%
1,3-Butadiene
0.2
0.033
5
0.07%
5%
40%
14%
40%
Cadmium Compounds
0.0001
0.00024
0.3
31%
68%
0%
0.8%
0%
Carbon Tetrachloride
0.3
0.067
4
0.2%
0.4%
0%
0%
99%
Chloroform
0.1
0.043
3
2%
62%
0%
0%
37%
Chromium (hexavalent form)
0.0001
0.000083
1.7
19%
70%
11%
0.57%
0%
1,4-Dichlorobenzene
0.08
0.091
0.8
2%
98%
0%
0%
0%
1,3-Dichloropropene
0.1
0.25
0.6
0.0001%
100%
0%
0%
0%
Diesel Particulate Matter
2
0.0033
633
0%
0%
40%
60%
*
Ethylene Dibromide
0.03
0.0017
18
0.04%
0.03%
0.01%
0%
100%
Ethylene Dichloride
0.05
0.038
1.2
2%
0.4%
0%
0%
98%
Ethylene Oxide
0.01
0.011
0.6
16%
84%
0%
0%
0%
Formaldehyde
2
0.077
28
1%
5%
37%
15%
42%
Methyl Chloride
1
0.56
2
0.3%
0.7%
0%
0%
99%
Naphthalene
0.1
0.029
3
2%
69%
22%
6%
0%
Nickel Compounds
0.002
0.0064
0.4
34%
60%
3%
4%
0%
Perchloroethylene
0.3
0.17
1.7
0.3%
53%
0%
0%
47%
1,1,2,2-Tetrachloroethane
0.07
0.017
4
0.2%
0.4%
0%
0%
99%
Chemicals with risk ratios greater than or equal to 1 are
in bold.
Risk Ratios in italics are based on noncarcinogenic effects.
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.
