1,2,4-Trichlorobenzene

DATA ITEMS CITED :

31

MOLECULAR FORMULA :

C6-H3-Cl3

MOLECULAR WEIGHT :

181.44

WISWESSER LINE NOTATION :

GR BG DG

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 :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

756 mg/kg

TOXIC EFFECTS :

Behavioral - somnolence (general depressed activity) Behavioral - convulsions or effect on seizure threshold

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Administration onto the skin

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

6139 mg/kg

TOXIC EFFECTS :

Behavioral - somnolence (general depressed activity) Behavioral - convulsions or effect on seizure threshold

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

300 mg/kg

TOXIC EFFECTS :

Behavioral - altered sleep time (including change in righting reflex) Behavioral - convulsions or effect on seizure threshold Behavioral - ataxia

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Intraperitoneal

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

1223 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

280 mg/kg/14D-C

TOXIC EFFECTS :

Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - other oxidoreductases

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

7380 mg/kg/13W-C

TOXIC EFFECTS :

Liver - changes in liver weight Kidney, Ureter, Bladder - changes in bladder weight Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - hepatic microsomal mixed oxidase (dealkylation, hydroxylation, etc.)

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

DOSE :

1800 mg/kg

SEX/DURATION :

female 9-13 day(s) after conception

TOXIC EFFECTS :

Reproductive - Effects on Embryo or Fetus - cytological changes (including somatic cell genetic material) Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus) Reproductive - Effects on Embryo or Fetus - fetal death

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Intraperitoneal

DOSE :

750 mg/kg

SEX/DURATION :

female 3 day(s) pre-mating

TOXIC EFFECTS :

Reproductive - Maternal Effects - uterus, cervix, vagina

MUTATION DATA

TEST SYSTEM :

Rodent - mouse

REFERENCE :

MUTAEX Mutagenesis. (Oxford Univ. Press, Pinkhill House, Southfield Road, Eynsham, Oxford OX8 1JJ, UK) V.1- 1986- Volume(issue)/page/year: 2,111,1987 *** REVIEWS *** ACGIH TLV-CL 37 mg/m3 (5 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 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-AUSTRALIA:TWA 5 ppm (40 mg/m3) JAN 1993 OEL-BELGIUM:STEL 5 ppm (37 mg/m3) JAN 1993 OEL-DENMARK:TWA 5 ppm (40 mg/m3) JAN 1993 OEL-FINLAND:TWA 5 ppm (40 mg/m3);STEL 10 ppm (74 mg/m3);Skin JAN 1993 OEL-FRANCE:TWA 5 ppm (40 mg/m3) JAN 1993 OEL-GERMANY:TWA 5 ppm (40 mg/m3) JAN 1993 OEL-THE NETHERLANDS:TWA 5 ppm (40 mg/m3) JAN 1993 OEL-SWITZERLAND:TWA 5 ppm (40 mg/m3) JAN 1993 OEL-UNITED KINGDOM:TWA 5 ppm (40 mg/m3);STEL 5 ppm (40 mg/m3) 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 1,2,4-TRICHLOROBENZENE-air:CL 5 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 - 83334 No. of Facilities: 74 (estimated) No. of Industries: 4 No. of Occupations: 8 No. of Employees: 1687 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 83334 No. of Facilities: 78 (estimated) No. of Industries: 6 No. of Occupations: 14 No. of Employees: 4033 (estimated) No. of Female Employees: 1463 (estimated)