1332-58-7

Kaolin

10

mg/m3

8008-20-6; 6472-81-0

Kerosene/Jet fuels, as total hydrocarbon vapor

200

mg/m3

Skin and Upper Respiratory Tract Irritation; Central Nervous System Impairment

A3

463-51-4

Ketene

0.05

ppm

Upper Respiratory Tract Irritation; Pulmonary edema

7439-92-1

Lead

0.05

mg/m3

Central Nervous System and Peripheral Nervous System Impairment; hematologic Effects

A3

7758-97-6

Lead chromate

0.2

ug/m3

Male Reproductive Damage; teratogenic Effects; vasoconstriction

DSEN RSEN

A1

58-89-9

Lindane

0.5

mg/m3

7580-67-8

Lithium hydride

0.025

mg/m3

7580-67-8

Lithium hydride

0.05

mg/m3

Eye and Respiratory Tract Irritation

75-47-8

lodoform

0.6

ppm

123-51-3

lsoamyl alcohol

100

ppm

78-83-1

lsobutanol

50

ppm

115-11-7

lsobutene

250

ppm

Upper Respiratory Tract Irritation; body weight Effects

A4

542-56-3

lsobutyl nitrite

1

ppm

Vasodilation; Methemoglobinemia

A3

26952-21-6

lsooctyl alcohol

50

ppm

4098-71-9

lsophorone diisocyanate

0.005

ppm

108-21-4

lsopropyl acetate

100

ppm

Eye and Upper Respiratory Tract Irritation; Central Nervous System Impairment

85-42-7; 13149-00-3; 14166-21-3

Hexahydrophthalic anhydride, all isomers

0.005

mg/m3

Sensitization

RSEN

680-31-9

Hexamethyl phosphoramide

Upper Respiratory Tract cancer

A3

822-06-0

Hexamethylene diisocyanate

0.005

ppm

Upper Respiratory Tract Irritation; resp Sensitization

75-83-2; 79-29-8

Hexane isomers

5

ppm

Peripheral Neuropathy

A3

51235-04-2

Hexazinone

3

mg/m3

Dizziness; headache; upper respiratory tract irritation; eye irritation.

A4

107-41-5

Hexylene glycol

25

ppm

Eye and Upper Respiratorytt Tract Irritation

107-41-5

Hexylene glycol

10

mg/m3

Eye and Upper Respiratorytt Tract Irritation

302-01-2

Hydrazine

0.01

ppm

Upper Respiratory Tract cancer

A3

10035-10-6

Hydrogen bromide

2

ppm

Upper Respiratory Tract Irritation

7647-01-0

Hydrogen chloride

2

ppm

Upper Respiratory Tract Irritation

A4

74-90-8; 592-01-8;155-50-8;143-33-9

Hydrogen cyanide

ppm

74-90-8; 592-01-8;155-50-8;143-33-9

Hydrogen cyanide

4.7

ppm

Upper Respiratory Tract Irritation; headache; nausea; thyroid Effects

7664-39-3

Hydrogen fluoride, as F

0.5

2

ppm

Upper Respiratory Tract, Lower Respiratory Tract, Skin, and Eye Irritation; fluorosis

7722-84-1

Hydrogen peroxide

1

ppm

7/5/7783

Hydrogen selenide, as Se

0.05

ppm

6/4/7783

Hydrogen sulfide

1

ppm

Upper Respiratory Tract Irritation; Central Nervous System Impairment

61788-32-7

Hydrogenated terphenyls

0.5

ppm

123-31-9

Hydroquinone

1

mg/m3

Eye Irritation; Eye Damage

DSEN

A3

95-13-6

Indene

5

ppm

Liver Damage

7440-74-6

Indium and compounds

0.1

mg/m3

Pulmonary edema; pneumonitis; dental erosion; malaise

50926-11-9

Indium Tin Oxide

0.1

ug/m3

DSEN

A3

Varies with compound

Iodides

0.01

ppm

Hypothyroidism; Upper Respiratory Tract Irritation

A4

7553-56-2

Iodine

0.001

ppm

Thyroid effects, maternal reproductive effects, fetal and neonatal damage

A4

7553-56-2

Iodine

0.01

mg/m3

Thyroid effects, maternal reproductive effects, fetal and neonatal damage

A4

1309-37-1

Iron oxide

5

mg/m3

Pneumoconiosis

A4

1309-37-1

Iron oxide

10

mg/m3

1309-37-1

Iron oxide

5

mg/m3

13463-40-6

Iron pentacarbonyl

0.1

ppm

Pulmonary edema; Central Nervous System Impairment

Varies with compound

Iron salts, soluble

1

mg/m3

Upper Respiratory Tract and Skin Irritation

123-92-2

Isoamyl acetate

100

ppm

110-19-0

Iso-Butyl Acetate

150

ppm

26675-46-7

Isoflurane

50

ppm

A4

96-33-3

Methyl acrylate

2

ppm

Eye, Skin, and Upper Respiratory Tract Irritation; Eye Damage

DSEN

A4

74-83-9

Methyl bromide

1

ppm

Upper Respiratory Tract and Skin Irritation

A4

74-87-3

Methyl chloride

50

ppm

108-87-2

Methyl cyclohexane

100

ppm

Adverse Kidney Effects

8022-00-2

Methyl demeton

0.05

mg/m3

Cholinesterase Inhibition

78-93-3

Methyl ethyl ketone

75

ppm

Embryo/fetal damage, upper respiratory tract irritation, headache, dizziness.

1338-23-4

Methyl ethyl ketone peroxide

0.2

ppm

107-31-3

Methyl formate

50

ppm

Central Nervous System Impairment; Upper Respiratory Tract Irritation; Eye Damage

60-34-4

Methyl hydrazine

0.01

ppm

Upper Respiratory Tract and Eye Irritation; lung cancer; liver Damage

A3

74-88-4

Methyl iodide

2

ppm

110-12-3

Methyl isoamyl ketone

20

ppm

Central Nervous System Impairment; Upper Respiratory Tract Irritation

108-11-2

Methyl isobutyl carbinol

20

ppm

Upper Respiratory Tract and Eye Irritation; Central Nervous System Impairment

108-10-1

Methyl isobutyl ketone

20

ppm

Upper Respiratory Tract Irritation; dizziness; headache

A3

624-83-9

Methyl isocyanate

0.02

ppm

563-80-4

Methyl isopropyl ketone

20

ppm

Embryo/fetal Damage; neonatal toxicity

74-93-1

Methyl mercaptan

0.5

ppm

80-62-6

Methyl methacrylate

50

ppm

Upper Respiratory Tract and Eye Irritation; body weight Effects; Pulmonary edema

DSEN

A4

110-43-0

Methyl n-amyl ketone

50

ppm

Body weight effects after repeated inhalation exposure. Skin/eye irritation.

591-78-6

Methyl n-butyl ketone

5

ppm

298-00-0

Methyl parathion

0.02

mg/m3

Cholinesterase Inhibition

A4

107-87-9

Methyl propyl ketone

150

ppm

Pulmonary Function; Eye Irritation

681-84-5

Methyl silicate

1

ppm

98-83-9

Methyl Styrene, A-

10

ppm

Upper Respiratory Tract Irritation; kidney and female Reproductive Damage

A3

1634-04-4

Methyl tert-butyl ether

50

ppm

Upper Respiratory Tract Irritation; kidney Damage

A3

78-94-4

Methyl vinyl ketone

0.2

ppm

Upper Respiratory Tract and Eye Irritation; Central Nervous System Impairment

SEN

78-94-4

Methyl vinyl ketone

0.01

ppm

Upper Respiratory Tract and Eye Irritation; Central Nervous System Impairment

126-98-7

Methylacrylonitrile

1

ppm

109-87-5

Methylal

1,000

ppm

78-59-1

Isophorone

5

ppm

Eye and Upper Respiratory Tract Irritation; Central Nervous System Impairment; malaise; fatigue

A3

78-59-1

Isophorone

4

5

ppm

67-63-0

Isopropyl alcohol

200

ppm

Eye and Upper Respiratory Tract Irritation; Central Nervous System Impairment

A4

1332-58-7

Kaolin

2

mg/m3

Pneumoconiosis

A4

108-20-3

lsopropyl ether

20

ppm

Embryo /fetal damage. Body weight effects.

4016-14-2

lsopropyl glycidyl ether

50

ppm

75-31-0

lsopropylamine

5

ppm

7439-95-4

Magnesium

10

mg/m3

Upper Respiratory Tract; metal fume fever

A4

121-75-5

Malathion

1

mg/m3

Cholinesterase Inhibition

A4

108-31-6

Maleic anhydride

0.01

mg/m3

Resp Sensitization

Dermal; Respiratory

A4

7439-96-5

Manganese

0.02

mg/m3

Central Nervous System Impairment

A4

7439-96-5

Manganese

0.1

mg/m3

Central Nervous System Impairment

A4

12079-65-1

Manganese cyclopentadienyl tricarbonyl, as Mn

0.1

mg/m3

7439-97-6

Mercury, elemental and inorganic

0.1

mg/m3

Central Nervous System Impairment; kidney Damage

7439-97-6

Mercury, elemental and inorganic

0.025

mg/m3

Central Nervous System Impairment; kidney Damage

A4

7439-97-6

Mercury, elemental and inorganic

0.01

mg/m3

Central Nervous System and Peripheral Nervous System Impairment; kidney Damage

141-79-7

Mesityl oxide

1

ppm

Body weight effects upper respiratory tract irritation and inflammation.

79-41-4

Methacrylic acid

20

ppm

67-56-1

Methanol

200

ppm

Headache; Eye Damage; dizziness; nausea

16752-77-5

Methomyl

0.2

mg/m3

Cholinesterase Inhibition; male Reproductive Damage; hematologic Effect

A4

72-43-5

Methoxychlor

10

mg/m3

79-20-9

Methyl acetate

200

ppm

74-99-7

Methyl acetylene

1,000

ppm

59355-75-8

Methyl acetylene-propadiene mixture

1,000

ppm

Central Nervous System Impairment