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3: Hazard Analysis Health and Safety Plan constriction in the chest. Exposure to high concentrations of ethylbenzene vapor may result in irritation of the skin and mucous membranes, dizziness, irritation of the nose and throat, and a sense of constriction of the chest. The OSHA PEL is listed as 100 ppm. The Cal/OSHA PEL is listed as 100 ppm. The TLV is listed as 100 ppm. XYLENE Xylene is a clear, colorless liquid. It exhibits the general chlorinated hydrocarbon central nervous system effects, olfactory (smell) changes, eye irritation and pulmonary changes. It is a severe skin irritant. There are three isomers: ortho, meta, and para. Exposure to high concentrations of xylene vapor may result in eye and skin irritation. Eye irritation may occur at concentrations of about 200 ppm. The OSHA PEL is listed as 100 ppm. The Cal/OSHA PEL is listed as 100 ppm. The TLV is listed as 100 ppm. METHYL TERT-BUTYL ETHER (MTBE) MTBE is a clear liquid with a distinct ether-like odor. It is primarily used in the formulation of gasoline as an octane enhancer and oxygenator. Little exposure data are available for MTBE, but it has been reported to cause headaches, nausea, dizziness, and irritation of the nose, throat, and eyes. Current carcinogenicity data indicate that it is a possible weak carcinogen at most. No OSHA PEL is listed for MTBE. The Cal/OSHA PEL is listed as 40 ppm. The TLV is currently listed as 50 ppm. DIESEL FUEL Diesel fuel is a gas oil fraction available in various grades as required by different engines. Composition of diesel varies in ratios of predominantly aliphatic, olefinic, cycloparaffinic, aromatic hydrocarbons, and additives. It is a severe skin irritant and ingestion of diesel can lead to systemic effects such as gastrointestinal irritation, vomiting, diarrhea, and, in severe cases, drowsiness and central nervous system depression, progressing to coma and death. Absorption of diesel fuel can cause hemorrhaging and pulmonary edema, progressing to pneumonitis and renal involvement. It is combustible when exposed to heat or flame, and can react with strong oxidizing materials. 111111111=1------- 3-3