An overview of environmental and toxicological aspects of aromatic hydrocarbons. IV. Ethylbenzene.

The solvent aspects of exposure to ethylbenzene are reviewed via an initial examination of the production, use, occurrence, and disposition of ethylbenzene as well as populations potentially at risk. While occupational exposure to ethylbenzene during its production and subsequent conversion to styrene is believed to be minimal, the broader occupational exposure to ethylbenzene during the production and use of 'mixed xylenes' is another area of concern. The general public can be exposed to ethylbenzene in ambient air as a result of its occurrence in motor vehicle exhaust. Additional exposure can arise in indoor environments, mostly from passive exposure to cigarette smoke. Ethylbenzene is primarily an irritant to the skin and mucous membranes and possesses narcotic properties at high concentrations.