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ACGIH Values for Chemicals

Acetamide

60-35-5

TLV:

1

STEL:

1

Ceiling:

1

ppm

ppm

ppm

TLV Basis:

Liver damage; liver cancer.

Acetic anhydride

108-24-7

TLV:

1

STEL:

1

Ceiling:

1

ppm

ppm

ppm

TLV Basis:

Eye and Upper Respiratory Tract Irritation

Acetone cyanohydrin, as CN

75-86-5

TLV:

0

STEL:

0

Ceiling:

0

mg/m3

mg/m3

mg/m3

TLV Basis:

Upper Respiratory Tract Irritation; headache; hypoxia/cyanosis

Acetylsalicylic acid

50-78-2

TLV:

0.3

STEL:

0.3

Ceiling:

0.3

mg/m3

mg/m3

mg/m3

TLV Basis:

Bleeding and respiratory sensitization

Acrylamide

79-06-1

TLV:

0.03

STEL:

0.03

Ceiling:

0.03

mg/m3

mg/m3

mg/m3

TLV Basis:

Central Nervous System Impairment

Adpic add

124-04-9

TLV:

5

STEL:

5

Ceiling:

5

mg/m3

mg/m3

mg/m3

TLV Basis:

Upper Respiratory Tract Irritation; ANS Impairment

Aldicarb

116-06-3

TLV:

0.0006

STEL:

0.0006

Ceiling:

0.0006

ppm

ppm

ppm

TLV Basis:

​

Allyl bromide

106-95-6

TLV:

0.1

STEL:

0.1

Ceiling:

0.1

ppm

ppm

ppm

TLV Basis:

Eye and Upper Respiratory Tract Irritation

Allyl glycidyl ether

106-92-3

TLV:

1

STEL:

1

Ceiling:

1

ppm

ppm

ppm

TLV Basis:

Upper Respiratory Tract, Eye, and Skin Irritation; dermatitis

alpha-Naphthylamine

134-32-7

TLV:

0

STEL:

0

Ceiling:

0

​

​

​

TLV Basis:

​

Aluminum oxide

1344-28-1

TLV:

10

STEL:

10

Ceiling:

10

mg/m3

mg/m3

mg/m3

TLV Basis:

​

Ammonia

7664-41-7

TLV:

25

STEL:

25

Ceiling:

25

ppm

ppm

ppm

TLV Basis:

​

Ammonium sulfamate

7773-06-0

TLV:

5

STEL:

5

Ceiling:

5

mg/m3

mg/m3

mg/m3

TLV Basis:

​

Antimony

7440-36-0

TLV:

0.5

STEL:

0.5

Ceiling:

0.5

mg/m3

mg/m3

mg/m3

TLV Basis:

​

ANTU

86-88-4

TLV:

0.3

STEL:

0.3

Ceiling:

0.3

mg/m3

mg/m3

mg/m3

TLV Basis:

​

Arsine

7784-42-1

TLV:

0.005

STEL:

0.005

Ceiling:

0.005

ppm

ppm

ppm

TLV Basis:

Peripheral Nervous System and vascular system Impairment; kidney and liver Impairment

Atrazine (and related symmetrical triazines)

1912-24-9

TLV:

2

STEL:

2

Ceiling:

2

mg/m3

mg/m3

mg/m3

TLV Basis:

Hematologic, Reproductive, and developmental Effect

Barium sulfate

7727-43-7

TLV:

5

STEL:

5

Ceiling:

5

mg/m3

mg/m3

mg/m3

TLV Basis:

Pneumoconiosis

Benomyl

17804-35-2

TLV:

5

STEL:

5

Ceiling:

5

mg/m3

mg/m3

mg/m3

TLV Basis:

​

1,1,2,2-Tetrachloro-1,2-diftuoroethane

76-12-0

TLV:

50

STEL:

50

Ceiling:

50

ppm

ppm

ppm

TLV Basis:

Liver and kidney Damage; Central Nervous System Impairment

1,1,2-Trichloroethane

79-00-5

TLV:

10

STEL:

10

Ceiling:

10

ppm

ppm

ppm

TLV Basis:

​

1,1-Dimethylhydrazine

57-14-7

TLV:

0.01

STEL:

0.01

Ceiling:

0.01

ppm

ppm

ppm

TLV Basis:

Upper Respiratory Tract Irritation; nasal cancer

1,2,4-Trimethylbenzene

25551-13-7; 526-73-8; 95-63-6; 108-67-8

TLV:

10

STEL:

10

Ceiling:

10

ppm

ppm

ppm

TLV Basis:

CNS impairment, hematological effects

1,2-Trans Dichloroethylene

156-60-5

TLV:

200

STEL:

200

Ceiling:

200

ppm

ppm

ppm

TLV Basis:

Central Nervous System Impairment; Eye Irritation

1,3-Dichloro-5,5-dimethyl hydantoin

118-52-5

TLV:

0.2

STEL:

0.2

Ceiling:

0.2

mg/m3

mg/m3

mg/m3

TLV Basis:

​

1,4-Dichloro-2-butene

764-41-0

TLV:

0.005

STEL:

0.005

Ceiling:

0.005

ppm

ppm

ppm

TLV Basis:

Upper Respiratory Tract and Eye Irritation

1-Bromopropane

106-94-5

TLV:

0.1

STEL:

0.1

Ceiling:

0.1

ppm

ppm

ppm

TLV Basis:

Central Nervous System Impairment; peripheral neuropathy; hematological Effects; developmental and Reproductive toxicity (male and female)

1-Hexene

592-41-6

TLV:

50

STEL:

50

Ceiling:

50

ppm

ppm

ppm

TLV Basis:

Central Nervous System Impairment

1-Nitropropane

108-03-2

TLV:

25

STEL:

25

Ceiling:

25

ppm

ppm

ppm

TLV Basis:

​

2,4,5-T

93-76-5

TLV:

10

STEL:

10

Ceiling:

10

mg/m3

mg/m3

mg/m3

TLV Basis:

​

2,4-Dichlorophenoxyacetic acid

94-75-7

TLV:

10

STEL:

10

Ceiling:

10

mg/m3

mg/m3

mg/m3

TLV Basis:

Thyroid Effect; kidney tubular Damage

2-Aminopyridine

504-29-0

TLV:

0.5

STEL:

0.5

Ceiling:

0.5

ppm

ppm

ppm

TLV Basis:

​

2-Butyl Alchol

78-92-2

TLV:

100

STEL:

100

Ceiling:

100

ppm

ppm

ppm

TLV Basis:

​

2-Chloropropionic acid

598-78-7

TLV:

0.1

STEL:

0.1

Ceiling:

0.1

ppm

ppm

ppm

TLV Basis:

Male Reproductive Damage

Acetamiprid

135410-20-7

TLV:

0.05

STEL:

0.05

Ceiling:

0.05

mg/M3

mg/M3

mg/M3

TLV Basis:

Steatosis, Neurodevelopment and immune system impairment, Reproductive effects

Acetic anhydride

108-24-7

TLV:

0

STEL:

0

Ceiling:

0

ppm

ppm

ppm

TLV Basis:

​

Acetonitrile

75-05-8

TLV:

20

STEL:

20

Ceiling:

20

ppm

ppm

ppm

TLV Basis:

Lower Respiratory Tract Irritation

a-Chlorinated diphenyl oxide

31242-93-0

TLV:

0.5

STEL:

0.5

Ceiling:

0.5

mg/m3

mg/m3

mg/m3

TLV Basis:

Chloracne; liver Damage

Acrylic acid

79-10-7

TLV:

2

STEL:

2

Ceiling:

2

ppm

ppm

ppm

TLV Basis:

Upper Respiratory Tract Irritation

Adponitrile

111 -69-3

TLV:

2

STEL:

2

Ceiling:

2

ppm

ppm

ppm

TLV Basis:

Upper Respiratory Tract and Lower Respiratory Tract Irritation

Aldrin

309-00-2

TLV:

0.05

STEL:

0.05

Ceiling:

0.05

mg/m3

mg/m3

mg/m3

TLV Basis:

Central Nervous System Impairment; liver and kidney Damage

Allyl chloride

107-05-1

TLV:

1

STEL:

1

Ceiling:

1

ppm

ppm

ppm

TLV Basis:

​

Allyl Methacrylate

96-05-9

TLV:

1

STEL:

1

Ceiling:

1

ppm

ppm

ppm

TLV Basis:

​

Aluminum

7429-90-5

TLV:

10

STEL:

10

Ceiling:

10

mg/m3

mg/m3

mg/m3

TLV Basis:

​

Aluminum oxide

1344-28-1

TLV:

5

STEL:

5

Ceiling:

5

mg/m3

mg/m3

mg/m3

TLV Basis:

​

Ammonium chloride

12125-02-9

TLV:

10

STEL:

10

Ceiling:

10

mg/m3

mg/m3

mg/m3

TLV Basis:

Eye and Upper Respiratory Tract Irritation

Ammonium sulfamate

7773-06-0

TLV:

10

STEL:

10

Ceiling:

10

mg/m3

mg/m3

mg/m3

TLV Basis:

​

Antimony hydride

780-52-3

TLV:

0.1

STEL:

0.1

Ceiling:

0.1

ppm

ppm

ppm

TLV Basis:

Hemolysis; kidney Damage; Lower Respiratory Tract Irritation

Arsenic

7440-38-2

TLV:

0.01

STEL:

0.01

Ceiling:

0.01

mg/m3

mg/m3

mg/m3

TLV Basis:

​

Asbestos

1332-21-4

TLV:

0.1

STEL:

0.1

Ceiling:

0.1

f/cc

f/cc

f/cc

TLV Basis:

​

Azinphos-methyl

86-50-0

TLV:

0.2

STEL:

0.2

Ceiling:

0.2

mg/m3

mg/m3

mg/m3

TLV Basis:

​

Barium sulfate

7727-43-7

TLV:

5

STEL:

5

Ceiling:

5

mg/m3

mg/m3

mg/m3

TLV Basis:

​

1,1,1,2-Tetrachloro-2,2-difluoroethane

76-11-9

TLV:

100

STEL:

100

Ceiling:

100

ppm

ppm

ppm

TLV Basis:

Liver and kidney Damage; Central Nervous System Impairment

1,1,2,2-Tetrachloroethane

79-34-5

TLV:

1

STEL:

1

Ceiling:

1

ppm

ppm

ppm

TLV Basis:

​

1,1-Dichloro-1-nitroethane

594-72-9

TLV:

2

STEL:

2

Ceiling:

2

ppm

ppm

ppm

TLV Basis:

​

1,2,3-Trichloropropane

96-18-4

TLV:

0.005

STEL:

0.005

Ceiling:

0.005

ppm

ppm

ppm

TLV Basis:

Cancer

1,2-Dibromo-3-chloropropane

96-12-8

TLV:

0.001

STEL:

0.001

Ceiling:

0.001

ppm

ppm

ppm

TLV Basis:

​

1,3,5-Triglycidyl-s-triazinetrione

2451-62-9

TLV:

0.05

STEL:

0.05

Ceiling:

0.05

mg/m3

mg/m3

mg/m3

TLV Basis:

Male Reproductive Damage

1,3-Dichloropropene

542-75-6

TLV:

1

STEL:

1

Ceiling:

1

ppm

ppm

ppm

TLV Basis:

​

1,4-Dichlorobenzene

106-46-7

TLV:

10

STEL:

10

Ceiling:

10

ppm

ppm

ppm

TLV Basis:

Eye Irritation; kidney Damage

1-Chloro-1-nitropropane

600-25-9

TLV:

2

STEL:

2

Ceiling:

2

ppm

ppm

ppm

TLV Basis:

​

1-Methoxy-2-propanol

107-98-2

TLV:

50

STEL:

50

Ceiling:

50

ppm

ppm

ppm

TLV Basis:

Eye and Upper Respiratory Tract Irritation

2,2'-Dichlorodiethyl Ether

111-44-4

TLV:

5

STEL:

5

Ceiling:

5

ppm

ppm

ppm

TLV Basis:

Upper Respiratory Tract and Eye Irritation; nausea

2,4,6-Trinitrotoluene

118-96-7

TLV:

0.1

STEL:

0.1

Ceiling:

0.1

mg/m3

mg/m3

mg/m3

TLV Basis:

Methemoglobinemia; liver Damage; cataract

2,4-Pentaned ione

123-54-6

TLV:

25

STEL:

25

Ceiling:

25

ppm

ppm

ppm

TLV Basis:

Neurotoxicity; Central Nervous System Impairment

2-Butoxyethanol

111-76-2

TLV:

20

STEL:

20

Ceiling:

20

ppm

ppm

ppm

TLV Basis:

Eye and Upper Respiratorytt Tract Irritation

2-Chloro-1-propanol

78-89-7

TLV:

​

STEL:

​

Ceiling:

​

​

​

​

TLV Basis:

​

Acetic Acid

64-19-7

TLV:

10

STEL:

10

Ceiling:

10

ppm

ppm

ppm

TLV Basis:

Upper Respiratory Tract and Eye Irritation; Pulmonary tune

Acetone

67-64-1

TLV:

250

STEL:

250

Ceiling:

250

ppm

ppm

ppm

TLV Basis:

Upper Respiratory Tract and Eye Irritation; Central Nervous System Impairment

Acetophenone

98-86-2

TLV:

10

STEL:

10

Ceiling:

10

ppm

ppm

ppm

TLV Basis:

Upper Respiratory Tract Irritation; Central Nervous System Impairment; pregnancy loss

Acrolein

107-02-8

TLV:

0

STEL:

0

Ceiling:

0

ppm

ppm

ppm

TLV Basis:

Eye irritation

Acrylonitrile

107-13-1

TLV:

2

STEL:

2

Ceiling:

2

ppm

ppm

ppm

TLV Basis:

​

Alachlor

15972-60-8

TLV:

1

STEL:

1

Ceiling:

1

mg/m3

mg/m3

mg/m3

TLV Basis:

Hemosiderosis (liver, spleen, kidney)

Allyl alcohol

107-18-6

TLV:

0.5

STEL:

0.5

Ceiling:

0.5

ppm

ppm

ppm

TLV Basis:

Eye and Upper Respiratoryt Tract Irritation

Allyl chloride

107-05-1

TLV:

1

STEL:

1

Ceiling:

1

ppm

ppm

ppm

TLV Basis:

​

Allyl propyl disulfide

2179-59-1

TLV:

0.5

STEL:

0.5

Ceiling:

0.5

ppm

ppm

ppm

TLV Basis:

Upper Respiratory Tract and Eye Irritation

Aluminum

7429-90-5

TLV:

1

STEL:

1

Ceiling:

1

mg/m3

mg/m3

mg/m3

TLV Basis:

Pneumoconiosis; Lower Respiratory Tract Irritation; neurotoxicity

Amitrole

61-82-5

TLV:

0.2

STEL:

0.2

Ceiling:

0.2

mg/m3

mg/m3

mg/m3

TLV Basis:

​

Ammonium perfluorooctanoate

3825-26-1

TLV:

0.01

STEL:

0.01

Ceiling:

0.01

mg/m3

mg/m3

mg/m3

TLV Basis:

Liver Damage

Aniline

62-53-3

TLV:

2

STEL:

2

Ceiling:

2

ppm

ppm

ppm

TLV Basis:

​

Antimony trioxide

1309-64-4

TLV:

5

STEL:

5

Ceiling:

5

mg/m3

mg/m3

mg/m3

TLV Basis:

Lung cancer; pneumoconiosis

Arsenic

7440-38-2

TLV:

0.2

STEL:

0.2

Ceiling:

0.2

mg/m3

mg/m3

mg/m3

TLV Basis:

​

Asphalt Fume, as benzene-soluble aerosol

8052-42-4

TLV:

0.5

STEL:

0.5

Ceiling:

0.5

mg/m3

mg/m3

mg/m3

TLV Basis:

Upper Respiratory Tract and Eye Irritation

Barium

7440-39-3

TLV:

0.5

STEL:

0.5

Ceiling:

0.5

mg/m3

mg/m3

mg/m3

TLV Basis:

Eye, Skin, and Gastrointestinal Irritation, muscular sfim

Bendiocarb

22781-23-3

TLV:

0.011

STEL:

0.011

Ceiling:

0.011

ppm

ppm

ppm

TLV Basis:

​

1,1,2,2-Tetrabromoethane

79-27-6

TLV:

0.1

STEL:

0.1

Ceiling:

0.1

ppm

ppm

ppm

TLV Basis:

Eye and Upper Respiratory Tract Irritation; Pulmonary edema; liver Damage

1,1,2-Trichloro-1,2,2,-trifluoroethane

76-13-1

TLV:

1,000

STEL:

1,000

Ceiling:

1,000

ppm

ppm

ppm

TLV Basis:

Central Nervous System Impairment

1,1-Dichloroethane

75-34-3

TLV:

100

STEL:

100

Ceiling:

100

ppm

ppm

ppm

TLV Basis:

​

1,2,4-Trichlorobenzene

120-82-1

TLV:

0

STEL:

0

Ceiling:

0

ppm

ppm

ppm

TLV Basis:

Eye and Upper Respiratorytt Tract Irritation

1,2-Dichlorobenzene

95-50-1

TLV:

25

STEL:

25

Ceiling:

25

ppm

ppm

ppm

TLV Basis:

Upper Respiratory Tract and Eye Irritation; liver Damage

1,3-Butadiene

106-99-0

TLV:

1

STEL:

1

Ceiling:

1

ppm

ppm

ppm

TLV Basis:

​

1,3-Dioxolane

646-06-0

TLV:

20

STEL:

20

Ceiling:

20

ppm

ppm

ppm

TLV Basis:

Hematologic Effects

1,6-Hexanediamine

124-09-4

TLV:

0.5

STEL:

0.5

Ceiling:

0.5

ppm

ppm

ppm

TLV Basis:

Upper Respiratory Tract and Skin Irritation

1-Chloro-2-propanol

127-00-4

TLV:

1

STEL:

1

Ceiling:

1

ppm

ppm

ppm

TLV Basis:

Liver Damage

1-Methylnaphthalene

90-12-0

TLV:

0.05

STEL:

0.05

Ceiling:

0.05

ppm

ppm

ppm

TLV Basis:

URT Irritation, lung damage, liver effects

2,2-Dichloropropionic acid

75-99-0

TLV:

1

STEL:

1

Ceiling:

1

ppm

ppm

ppm

TLV Basis:

​

2,4-Dichlorophenoxyacetic acid

94-75-7

TLV:

0

STEL:

0

Ceiling:

0

mg/m3

mg/m3

mg/m3

TLV Basis:

​

2-Acetylaminofluorine

53-96-3

TLV:

0

STEL:

0

Ceiling:

0

​

​

​

TLV Basis:

​

2-Butoxyethyl acetate

112-07-2

TLV:

20

STEL:

20

Ceiling:

20

ppm

ppm

ppm

TLV Basis:

Hemolysis

2-Chloroacetophenone

532-27-4

TLV:

0.05

STEL:

0.05

Ceiling:

0.05

ppm

ppm

ppm

TLV Basis:

Eye, Upper Respiratory Tract, and Skin Irritation

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