MIDDLESEX
COUNTY
CEP
Average Air Toxics Estimates for Middlesex County,
NJ in 1990 |
|
Contribution by Source Category |
Pollutant
(HAP) |
Air
Concentration
ug/m3 |
Health
Benchmark
ug/m3 |
Risk
Ratio |
Point% |
Area% |
Mobile% |
Background% |
Acetaldehyde |
0.95 |
0.45 |
2 |
10 |
39 |
52 |
---- |
Acrolein
* |
0.29 |
0.02 |
14 |
---- |
61 |
39 |
---- |
Acrylamide |
0.0000019 |
0.00077 |
0.002 |
100 |
---- |
---- |
---- |
Acrylonitrile |
0.058 |
0.015 |
4 |
3 |
97 |
---- |
---- |
Arsenic |
0.00056 |
0.00023 |
2 |
40 |
33 |
27 |
---- |
Benzene |
2.9 |
0.12 |
24 |
9 |
32 |
42 |
17 |
Beryllium |
0.000024 |
0.00042 |
0.1 |
53 |
42 |
4 |
---- |
1,3-Butadiene |
0.12 |
0.0036 |
34 |
---- |
18 |
82 |
---- |
Cadmium |
0.00080 |
0.00029 |
3 |
42 |
58 |
---- |
---- |
Carbon
tetrachloride |
0.90 |
0.067 |
13 |
---- |
2 |
---- |
98 |
Chloroform |
0.096 |
0.043 |
2 |
5 |
8 |
---- |
87 |
Chromium |
0.0013 |
0.000083 |
15 |
50 |
34 |
17 |
---- |
p-Dichlorobenzene |
0.29 |
0.091 |
3 |
---- |
100 |
---- |
---- |
1,3-Dichloropropene |
0.069 |
0.027 |
3 |
---- |
100 |
---- |
---- |
Dioxin |
0.000000029 |
0.00000003 |
1 |
21 |
26 |
1 |
52 |
Ethyl
acrylate |
0.032 |
2 |
0.02 |
4 |
96 |
---- |
---- |
Ethylene
dibromide |
0.0077 |
0.0045 |
2 |
---- |
---- |
---- |
100 |
Ethylene
dichloride |
0.21 |
0.038 |
6 |
0.003 |
71 |
---- |
29 |
Ethylene
oxide |
0.014 |
0.01 |
1.4 |
60 |
40 |
---- |
---- |
Formaldehyde |
1.5 |
0.077 |
19 |
2 |
29 |
52 |
17 |
Hydrazine |
0.00032 |
0.0002 |
1.6 |
---- |
---- |
---- |
---- |
Lead
* |
0.0090 |
0.1 |
0.1 |
15 |
64 |
21 |
---- |
Manganese
* |
0.0065 |
0.05 |
0.1 |
13 |
71 |
17 |
---- |
Mercury
compounds * |
0.0026 |
0.3 |
0.01 |
8 |
34 |
2 |
57 |
Methyl
chloride |
1.3 |
0.56 |
2 |
0.4 |
1 |
---- |
96 |
Methylene
chloride |
0.43 |
2 |
0.2 |
19 |
46 |
---- |
35 |
Methylene
diphenyl diisocyanate * |
0.00035 |
0.6 |
0.001 |
100 |
---- |
---- |
---- |
Naphthalene
* |
0.16 |
14 |
0.01 |
2 |
25 |
73 |
---- |
Nickel |
0.019 |
0.0042 |
4 |
59 |
34 |
6 |
---- |
Polycyclic
organic matter |
0.32 |
0.0059 |
55 |
18 |
35 |
47 |
---- |
Propylene
dichloride |
0.0048 |
0.053 |
0.1 |
1 |
99 |
---- |
---- |
Quinoline |
0 |
0.00029 |
0 |
---- |
---- |
---- |
---- |
Styrene |
0.19 |
1.8 |
0.1 |
1 |
79 |
19 |
---- |
1,1,2,2-Tetrachloroethane |
0.0000087 |
0.017 |
0.0005 |
100 |
---- |
---- |
---- |
Tetrachloroethylene |
0.62 |
0.071 |
9 |
8 |
69 |
---- |
22 |
1,1,2-Trichloroethane |
0.00035 |
0.063 |
0.01 |
12 |
88 |
---- |
---- |
Trichloroethylene |
0.48 |
0.1 |
5 |
18 |
65 |
---- |
17 |
Vinyl
chloride |
0.098 |
0.012 |
8 |
---- |
100 |
---- |
---- |
Vinylidene
chloride |
0.0000067 |
0.02 |
0.0003 |
100 |
---- |
---- |
---- |
back
to 1990 county-level estimates
|
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