*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : QJ9635000
CHEMICAL NAME           : Naphthalene, 2-methyl-
CAS REGISTRY NUMBER     : 91-57-6
LAST UPDATED            : 199801
DATA ITEMS CITED        : 11
MOLECULAR FORMULA       : C11-H10
MOLECULAR WEIGHT        : 142.21
WISWESSER LINE NOTATION : L66J C1
COMPOUND DESCRIPTOR     : Tumorigen
                          Mutagen
SYNONYMS/TRADE NAMES :
   * beta-Methylnaphthalene
   * 2-Methylnaphthalene
 
                       *** HEALTH HAZARD DATA ***
 
                        ** ACUTE TOXICITY DATA **
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 1630 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   85GMAT "Toxicometric Parameters of Industrial Toxic Chemicals Under Single
   Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects,
   GKNT, 1982  Volume(issue)/page/year: -,85,1982
 
TYPE OF TEST            : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE       : Intraperitoneal
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 1 gm/kg
TOXIC EFFECTS :
   Lungs, Thorax, or Respiration - structural or functional change in trachea
   or bronchi
   Lungs, Thorax, or Respiration - other changes
REFERENCE :
   TXAPA9 Toxicology and Applied Pharmacology.  (Academic Press, Inc., 1 E.
   First St., Duluth, MN 55802) V.1-    1959-  Volume(issue)/page/year:
   61,185,1981
 
                          ** TUMORIGENIC DATA **
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 28500 mg/kg/81W-C
TOXIC EFFECTS :
   Tumorigenic - equivocal tumorigenic agent by RTECS criteria
   Lungs, Thorax, or Respiration - tumors
REFERENCE :
   FAATDF Fundamental and Applied Toxicology.  (Academic Press, Inc., 1 E.
   First St., Duluth, MN 55802) V.1-    1981-  Volume(issue)/page/year:
   36,90,1997
 
                            ** MUTATION DATA **
 
TYPE OF TEST            : Cytogenetic analysis
TEST SYSTEM             : Human Lymphocyte
DOSE/DURATION           : 4 mmol/L
REFERENCE :
   MUREAV Mutation Research.  (Elsevier Science Pub. B.V., POB 211, 1000 AE
   Amsterdam, Netherlands) V.1-    1964-  Volume(issue)/page/year: 208,155,1988
 
TYPE OF TEST            : Sister chromatid exchange
TEST SYSTEM             : Human Lymphocyte
DOSE/DURATION           : 250 umol/L
REFERENCE :
   MUREAV Mutation Research.  (Elsevier Science Pub. B.V., POB 211, 1000 AE
   Amsterdam, Netherlands) V.1-    1964-  Volume(issue)/page/year: 208,155,1988

                    *** OCCUPATIONAL EXPOSURE LIMITS ***
 
   OEL-RUSSIA:STEL 20 mg/m3 JAN 1993

         *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA ***

NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA :
   NOHS - National Occupational Hazard Survey (1974)
     NOHS Hazard Code - M1659
       No. of Facilities: 633 (estimated)
       No. of Industries: 10
       No. of Occupations: 15
       No. of Employees: 3498 (estimated)
   
   NOES - National Occupational Exposure Survey (1983)
     NOES Hazard Code - M1659
       No. of Facilities: 376 (estimated)
       No. of Industries: 5
       No. of Occupations: 5
       No. of Employees: 4359 (estimated)
       No. of Female Employees: 1608 (estimated)

                          *** STATUS IN U.S. ***
 
   EPA TSCA Section 8(b) CHEMICAL INVENTORY
   
   EPA TSCA Section 8(d) unpublished health/safety studies
   
   EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JUNE 1998

 
                            *** END OF RECORD ***