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MERCER COUNTY

CEP Average Air Toxics90 Estimates for Mercer County, NJ in 19
Contribution by Source Category
Pollutant (HAP) Air Concentration
ug/m3
Health Benchmark
ug/m3
Risk Ratio Point% Area% Mobile% Background%

Acetaldehyde

0.82

0.45

2

2

31

67

----

Acrolein *

0.24

0.02

12

----

47

53

----

Acrylamide

0.0000099

0.00077

0.013

100

----

----

----

Acrylonitrile

0.019

0.015

1

5

95

----

----

Arsenic

0.00067

0.00023

3

15

62

24

----

Benzene

2.7

0.12

23

----

21

61

18

Beryllium

0.000015

0.00042

0.04

28

71

1

----

1,3-Butadiene

0.20

0.0036

54

----

20

80

----

Cadmium

0.0019

0.00029

6

7

93

----

----

Carbon tetrachloride

0.89

0.067

13

----

1

----

99

Chloroform

0.094

0.043

2

1

11

----

88

Chromium

0.0027

0.000083

32

42

50

8

----

p-Dichlorobenzene

0.16

0.091

2

----

100

----

----

1,3-Dichloropropene

0.074

0.027

3

----

100

----

----

Dioxin

0.000000063

0.00000003

2

30

46

1

24

Ethyl acrylate

0.012

2

0.01

16

83

----

----

Ethylene dibromide

0.0077

0.0045

2

----

----

----

100

Ethylene dichloride

0.11

0.038

3

1

44

----

55

Ethylene oxide

0.0071

0.01

0.7

59

41

----

----

Formaldehyde

1.5

0.077

20

1

23

60

16

Hydrazine

0.0000087

0.0002

0.04

----

----

----

----

Lead *

0.027

0.1

0.3

5

87

9

----

Manganese *

0.018

0.05

0.4

5

86

9

----

Mercury compounds *

0.0052

0.3

0.02

3

67

1

29

Methyl chloride

1.3

0.56

2

0.3

2

----

95

Methylene chloride

0.45

2

0.2

13

53

----

33

Methylene diphenyl diisocyanate *

0.00074

0.6

0.001

100

----

----

----

Naphthalene *

0.21

14

0.02

0.1

21

78

----

Nickel

0.011

0.0042

3

36

59

5

----

Polycyclic organic matter

0.41

0.0059

69

22

27

51

----

Propylene dichloride

0.0025

0.053

0.05

38

62

----

----

Quinoline

0

0.00029

0

----

----

----

----

Styrene

0.10

1.8

0.1

1

42

56

----

1,1,2,2-Tetrachloroethane

0.00000016

0.017

0.0000

100

----

----

----

Tetrachloroethylene

0.74

0.071

10

3

78

----

19

1,1,2-Trichloroethane

0.00034

0.063

0.01

3

97

----

----

Trichloroethylene

0.52

0.1

5

9

75

----

16

Vinyl chloride

0.042

0.012

3

7

93

----

----

Vinylidene chloride

0.0000023

0.02

0.0001

100

----

----

----

back to 1990 county-level estimates

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