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0 0 <br />Benzene <br />Benzene is a colorless to light -yellow liquid with an aromatic odor. Inhalation or absorption <br />of benzene can cause imitation of the eyes, skin, nose and respiratory system. Prolonged <br />exposure can cause giddiness, headache, nausea, staggered gait, and fatigue. <br />The Cal -OSHA PEL for benzene is I ppm; the STEL for benzene is 5 ppm. <br />Toluene <br />Toluene is a colorless liquid with a sweet, pungent odor. Inhalation or absorption of toluene <br />can cause irritation to the eyes and nose, fatigue, weakness, dizziness, headache, dennatitis, <br />liver, and kidney damage. <br />The Cal -OSHA PEL for toluene is 100 ppm; the STEL for toluene is 150 ppm. The ceiling <br />limit (the maximum concentration of an airborne contaminant to which an employee may be <br />exposed at any time) for toluene is 500 ppm. <br />Ethvlbenzene <br />Ethylbenzene is a colorless liquid with an aromatic odor. Inhalation or absorption of <br />ethylbenzene can cause irritation to the eyes, skin, mucous membranes, headache, dermatitis, <br />narcosis, and coma. <br />The Cal -OSHA PEL for ethylbenzene is 100 ppm; the STEL for ethylbenzene is 125 ppm. <br />XyleneCompounds <br />Xylene compounds (ortho-, meta-, and para -xylene) are colorless liquids with aromatic odors. <br />Inhalation or absorption of xylene compounds can cause irritation to the eyes, skin nose, <br />throat, dizziness, drowsiness, nausea, vomiting, and dermatitis. <br />The Cal -OSHA PEL for xylene compounds is 100 ppm; the STEL for xylene compounds is <br />300 ppm. <br />4.0 RISK ASSESSMENT SUMMARY <br />It is anticipated that there will be no significant or major potential source of exposures due to <br />the scope of work to be perfonned on this project. An analyses of site specific hazards with <br />respect to chemical and physical hazards are discussed below. <br />In general, the principal routes of exposure on any site include inhalation, absorption, den -nal <br />contact, and ingestion. With respect to the scope of work to be performed, the potential <br />routes of exposure include inhalation, absorption, and dermal contact. General safe work <br />practices should adequately address the potential for exposure via absorption or dennal <br />contact. <br />SSP.Prgiecr N0. 3 <br />Dene <br />