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' Site Safety Plan <br /> Job No. 4780200 <br /> Page 11 <br /> ' VII. CHEMICALS OF CONCERN <br /> The potential effects of any exposure are dependent upon several factors, <br /> including substance toxicity, time frame of exposure, concentration of <br /> ' substance, general health of person exposed, and individual use of hazard <br /> reduction methods. Each of the chemicals previously detected on the site is <br /> discussed below. <br /> ' A. Gasoline is a highly flammable mixture of volatile hydrocarbons, primarily <br /> ' branched-chain paraffins, cycloparaffins and aromatics. It has a <br /> dangerous fire and explosion risk. Diesel Oil is composed chiefly of <br /> unbranched parafins. It has a moderate fire risk. Both are derived from <br /> ' Petroleum Oil, a clear, bright liquid with a mild petroleum odor, that <br /> poses a moderate fire risk. Inhalation of excessive concentrations of <br /> vapor or mist can be irritating to the respiratory passages and can cause <br /> ' headache, dizziness, nausea, vomiting, and loss of coordination. <br /> Prolonged or repeated skin contact may cause irritation. <br /> ' B. Benzene is a clear, colorless to light-yellow, highly flammable liquid of <br /> dangerous fire risk with a characteristic odor. Acute toxicity (by <br /> ingestion or inhalation) leads to irritation of the mucus membranes, <br /> restlessness, convulsions, excitement and depression. Death may follow <br /> from respiratory failure. Harmful amounts may also be absorbed through <br /> the skin. Benzene is a known carcinogen. <br /> C. Toluene is a colorless, flammable liquid with a benzene-like odor and a <br /> dangerous fire risk. It is toxic by ingestion, inhalation and skin <br /> ' absorption. High concentrations have narcotic effects. <br /> D. Ethylbenzene is a colorless, flammable liquid with an aromatic odor that, <br />' as a vapor, is heavier than air. Irritating to the eyes, skin and mucous <br /> membranes, it is toxic by ingestion, inhalation and skin absorption. It <br />' poses a dangerous fire risk and is narcotic in high concentrations. <br /> E. Xylenes are a commercial mixture of the three isomers, o-, m- and p- <br /> xylene. It is a clear, flammable liquid with moderate fire risk, which is <br /> toxic by inhalation and ingestion and may be narcotic at high <br /> concentrations. <br /> F. Diesel is a colorless flammable liquid that poses a moderate fire risk. <br /> 1 <br />' <br /> EC, Inc. <br /> December 23, 1992 <br />