Methylstyrene

DATA ITEMS CITED :

53

MOLECULAR FORMULA :

C9-H10

MOLECULAR WEIGHT :

118.19

WISWESSER LINE NOTATION :

1U1R X1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :

Standard Draize test

ROUTE OF EXPOSURE :

Administration onto the skin

SPECIES OBSERVED :

Rodent - rabbit

TYPE OF TEST :

Standard Draize test

ROUTE OF EXPOSURE :

Administration into the eye

SPECIES OBSERVED :

Rodent - rabbit

TYPE OF TEST :

TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :

Inhalation

SPECIES OBSERVED :

Human

DOSE/DURATION :

400 ppm

TOXIC EFFECTS :

Sense Organs and Special Senses (Olfaction) - effect, not otherwise specified Sense Organs and Special Senses (Eye) - effect, not otherwise specified

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

2255 mg/kg

TOXIC EFFECTS :

Sense Organs and Special Senses (Eye) - lacrimation Behavioral - somnolence (general depressed activity) Skin and Appendages - hair

TYPE OF TEST :

LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :

Administration onto the skin

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

4500 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Intraperitoneal

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

2324 mg/kg

TOXIC EFFECTS :

Sense Organs and Special Senses (Eye) - lacrimation Behavioral - somnolence (general depressed activity) Skin and Appendages - hair

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

3160 mg/kg

TOXIC EFFECTS :

Lungs, Thorax, or Respiration - acute pulmonary edema Gastrointestinal - other changes Blood - hemorrhage

TYPE OF TEST :

LC50 - Lethal concentration, 50 percent kill

ROUTE OF EXPOSURE :

Inhalation

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

3020 mg/m3/4H

TOXIC EFFECTS :

Lungs, Thorax, or Respiration - acute pulmonary edema Gastrointestinal - other changes Blood - hemorrhage

TYPE OF TEST :

LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :

Administration onto the skin

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

4500 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :

Inhalation

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

1300 ppm/6H/15D-I

TOXIC EFFECTS :

Sense Organs and Special Senses (Eye) - lacrimation Liver - other changes Liver - changes in liver weight

TYPE OF TEST :

TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :

Inhalation

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

332 ppm/6H/21W-I

TOXIC EFFECTS :

Peripheral Nerve and Sensation - recording from afferent nerve Peripheral Nerve and Sensation - recording from peripheral motor nerve

TYPE OF TEST :

TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :

Inhalation

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

1000 ppm/6H/13W-I

TOXIC EFFECTS :

Sense Organs and Special Senses (Eye) - lacrimation Liver - changes in liver weight

TYPE OF TEST :

TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :

Inhalation

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

100 ppm/6H/15W-I

TOXIC EFFECTS :

Peripheral Nerve and Sensation - recording from peripheral motor nerve

TYPE OF TEST :

TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :

Inhalation

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

200 ppm/6H/15D-I

TOXIC EFFECTS :

Lungs, Thorax, or Respiration - other changes Liver - hepatitis (hepatocellular necrosis), diffuse Related to Chronic Data - death

TYPE OF TEST :

TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :

Inhalation

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

160 ppm/6H/13W-I

TOXIC EFFECTS :

Lungs, Thorax, or Respiration - other changes Nutritional and Gross Metabolic - weight loss or decreased weight gain

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Intraperitoneal

DOSE :

3750 mg/kg

SEX/DURATION :

female 1-15 day(s) after conception

TOXIC EFFECTS :

Reproductive - Fertility - post-implantation mortality (e.g. dead and/or resorbed implants per total number of implants) Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus)

TYPE OF TEST :

Micronucleus test

MUTATION DATA

TYPE OF TEST :

Mutation in mammalian somatic cells

TEST SYSTEM :

Rodent - mouse Lymphocyte

REFERENCE :

EMMUEG Environmental and Molecular Mutagenesis. (Alan R. Liss, Inc., 41 E. 11th St., New York, NY 10003) V.10- 1987- Volume(issue)/page/year: 12,85,1988 *** REVIEWS *** ACGIH TLV-Not classifiable as a human carcinogen 85INA8 "Documentation of the Threshold Limit Values and Biological Exposure Indices," 5th ed., Cincinnati, OH, American Conference of Governmental Industrial Hygienists, Inc., 1986 Volume(issue)/page/year: 6,1/BEI,1997 ACGIH TLV-STEL 483 mg/m3 (100 ppm) DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 ACGIH TLV-TWA 242 mg/m3 (50 ppm) DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 IARC Cancer Review:Human Inadequate Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 60,373,1994 IARC Cancer Review:Animal Lack Carcinogenicity IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 60,373,1994 IARC Cancer Review:Group 3 IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 60,373,1994 *** U.S. STANDARDS AND REGULATIONS *** MSHA STANDARD-air:TWA 100 ppm (480 mg/m3) DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: 3,278,1971 OSHA PEL (Gen Indu):8H TWA 100 ppm (480 mg/m3) CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1910.1000,1994 OSHA PEL (Construc):8H TWA 100 ppm (480 mg/m3) CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1926.55,1994 OSHA PEL (Shipyard):8H TWA 100 ppm (480 mg/m3) CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1915.1000,1993 OSHA PEL (Fed Cont):8H TWA 100 ppm (480 mg/m3) CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 41,50-204.50,1994 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-AUSTRALIA:TWA 50 ppm (240 mg/m3);STEL 100 ppm (485 mg/m3) JAN 1993 OEL-BELGIUM:TWA 50 ppm (242 mg/m3);STEL 100 ppm (483 mg/m3) JAN 1993 OEL-DENMARK:TWA 25 ppm (120 mg/m3) JAN 1993 OEL-FINLAND:TWA 50 ppm (240 mg/m3);STEL 100 ppm (480 mg/m3) JAN 1993 OEL-FRANCE:TWA 50 ppm (240 mg/m3) JAN 1993 OEL-GERMANY:TWA 100 ppm (480 mg/m3) JAN 1993 OEL-THE NETHERLANDS:TWA 50 ppm (240 mg/m3) JAN 1993 OEL-THE PHILIPPINES:TWA 100 ppm (480 mg/m3) JAN 1993 OEL-RUSSIA:STEL 50 mg/m3 JAN 1993 OEL-SWEDEN:TWA 25 ppm (120 mg/m3);STEL 75 ppm (350 mg/m3);Skin JAN 1993 OEL-SWITZERLAND:TWA 50 ppm (240 mg/m3) JAN 1993 OEL-TURKEY:TWA 100 ppm (480 mg/m3) JAN 1993 OEL-UNITED KINGDOM:TWA 100 ppm (480 mg/m3);STEL 150 ppm JAN 1993 OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGIH TLV *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH RECOMMENDED EXPOSURE LEVEL (REL) : NIOSH REL TO VINYL TOLUENE-air:10H TWA 100 ppm REFERENCE : NIOSH* National Institute for Occupational Safety and Health, U.S. Dept. of Health, Education, and Welfare, Reports and Memoranda. Volume(issue)/page/year: DHHS #92-100,1992 NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 76510 No. of Facilities: 7016 (estimated) No. of Industries: 61 No. of Occupations: 59 No. of Employees: 73140 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 76510 No. of Facilities: 2028 (estimated) No. of Industries: 24 No. of Occupations: 31 No. of Employees: 25353 (estimated) No. of Female Employees: 3889 (estimated)