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Health Effects Assessment Summary (HEAST) for

Xylene, m-

CAS: 000108-38-3


Summary of HEAST Information on-Line

Subchronic and Chronic Toxicity
Chronic [RfD]:on-Line






Subchronic and Chronic Toxicity (Other than Carcinogenicity)

Chronic [RfD]: 2E+0 mg/kg/day
Uncertainty Factor: 100

Route: Oral: gavage

Target Organ / Critical Effect: Central nervous system / Hyperactivity
Whole body / Decreased weight

Species Effect Level Dose Experiment Length
Rat NOAEL 250 mg/kg 103 weeks

References
1986 NTP (National Toxicology Program). 1986. NTP technical report on the toxicology and carcinogenesis of Xylenes (mixed) (60.2% m-Xylene, 13.6% p-Xylene, 17.0% Ethylbenzene and 9.1% o-Xylene) (CAS No. 1330-20-7) in F344/N rats and B6C3F1 mice (gavage studies). US DHHS, PHS, NIH, NTP, Research Triangle Park, NC, NTP TR 327, NIH Publ No. 86-2583.
1986 U.S. EPA. 1986. Health and environmental effects profile for Xylenes (o-, m-, p-). Environmental Criteria and Assessment Office, Cincinnati, OH. Office of Solid Waste and Emergency Response, Washington, DC



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