Constituent

CAS No.

Unit risk (m³μg)

RSD (μg/m³)

Acrylamide

79-06-1

0.0013

0.0077

Acrylonitrile

107-13-1

0.000068

0.15

Aldrin

309-00-2

0.0049

0.0020

Aniline

62-53-3

0.0000074

1.4

Arsenic

7440-38-2

0.0043

0.0023

Benz(a)anthracene

56-55-3

0.00089

0.011

Benzene

71-43-2

0.0000083

1.2

Benzidine

92-87-5

0.067

0.00015

Benzo(a)pyrene

50-32-8

0.0033

0.0030

Beryllium

7440-41-7

0.0024

0.0042

Bis(2-chloroethyl)ether

111-44-4

0.00033

0.030

Bis(chloromethyl)ether

542-88-1

0.062

0.00016

Bis(2-ethylhexyl)-phthalate

117-81-7

0.00000024

42.

1,3-Butadiene

106-99-0

0.00028

0.036

Cadmium

7440-43-9

0.0018

0.0056

Carbon Tetrachloride

56-23-5

0.000015

0.67

Chlordane

57-74-9

0.00037

0.027

Chloroform

67-66-3

0.000023

0.43

Chloromethane

74-87-3

0.0000036

2.8

Chromium VI

7440-47-3

0.012

0.00083

DDT

50-29-3

0.000097

0.10

Dibenz(a,h)anthracene

53-70-3

0.014

0.00071

1,2-Dibromo-3-chloro-propane

96-12-8

0.0063

0.0016

1,2-Dibromoethane

106-93-4

0.00022

0.045

1,1-Dichloroethane

75-34-3

0.000026

0.38

1,2-Dichloroethane

107-06-2

0.000026

0.38

1,1-Dichloroethylene

75-35-4

0.000050

0.20

1,3-Dichloropropene

542-75-6

0.35

0.000029

Dieldrin

60-57-1

0.0046

0.0022

Diethylstilbestrol

56-53-1

0.14

0.000071

Dimethylnitrosamine

62-75-9

0.014

0.00071

2,4-Dinitrotoluene

121-14-2

0.000088

0.11

1,2-Diphenylhydrazine

122-66-7

0.00022

0.045

1,4-Dioxane

123-91-1

0.0000014

7.1

Epichlorohydrin

106-89-8

0.0000012

8.3

Ethylene Oxide

75-21-8

0.00010

0.10

Ethylene Dibromide

106-93-4

0.00022

0.045

Formaldehyde

50-00-0

0.000013

0.77

Heptachlor

76-44-8

0.0013

0.0077

Heptachlor Epoxide

1024-57-3

0.0026

0.0038

Hexachlorobenzene

118-74-1

0.00049

0.020

Hexachlorobutadiene

87-68-3

0.000020

0.50

Alpha-hexachlorocyclohexane

319-84-6

0.0018

0.0056

Beta-hexachlorocyclohexane

319-85-7

0.00053

0.019

Gamma-hexachlorocyclohexane

58-89-9

0.00038

0.026

Hexachlorocyclohexane,

Technical

0.00051

0.020

Hexachlorodibenzo-p-dioxin

(1,2 Mixture)

1.3

0.0000077

Hexachloroethane

67-72-1

0.0000040

2.5

Hydrazine

302-01-2

0.0029

0.0034

Hydrazine Sulfate

302-01-2

0.0029

0.0034

3-Methylcholanthrene

56-49-5

0.0027

0.0037

Methyl Hydrazine

60-34-4

0.00031

0.032

Methylene Chloride

75-09-2

0.0000041

2.4

4,4'-Methylene-bis-2-

chloroaniline

101-14-4

0.000047

0.21

Nickel

7440-02-0

0.00024

0.042

Nickel Refinery Dust

7440-02-0

0.00024

0.042

Nickel Subsulfide

12035-72-2

0.00048

0.021

2-Nitropropane

79-46-9

0.027

0.00037

N-Nitroso-n-butylamine

924-16-3

0.0016

0.0063

N-Nitroso-n-methylurea

684-93-5

0.086

0.00012

N-Nitrosodiethylamine

55-18-5

0.043

0.00023

N-Nitrosopyrrolidine

930-55-2

0.00061

0.016

Pentachloronitrobenzene

82-68-8

0.000073

0.14

PCBs

1336-36-3

0.0012

0.0083

Pronamide

23950-58-5

0.0000046

2.2

Reserpine

50-55-5

0.0030

0.0033

2,3,7,8-Tetrachlorodibenzo-p-dioxin

1746-01-6

45.

0.00000022

1,1,2,2-Tetrachloroethane

79-34-5

0.000058

0.17

Tetrachloroethylene

127-18-4

0.00000048

21.

Thiourea

62-56-6

0.00055

0.018

1,1,2-Trichloroethane

79-00-5

0.000016

0.63

Trichloroethylene

79-01-6

0.0000013

7.7

2,4,6-Trichlorophenol

88-06-2

0.0000057

1.8

Toxaphene

8001-35-2

0.00032

0.031

Vinyl Chloride

75-01-4

0.0000071

1.4