
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