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�r <br /> HAZARD EVALUATION <br /> This hazard evaluation is directed toward those volatile organic <br /> compounds which based on data gathered to date, are known or <br /> suspected to be present at sampling locations, they being: <br /> Benzene, Ethylbenzene, Toluene, Total Xylenes, Isopropylbenzene, <br /> Total Petroleum Hydrocarbons, organic bead, and Ethylene Dibromide. <br /> The U.S. Environmental protection Agency (EPA) (1985) had defined <br /> levels of protection in order to provide a standard vocabulary to <br /> equipment. The four <br /> describe personal protection levels afford <br /> varying degrees of respiratory protection, dermal protection, and <br /> protection from traumatic injury. The four levels are summarized <br /> as follows: <br /> e _ <br /> Level A consists of a totally encapsulated, chemically <br /> suit with self--contained breathing apparatus. <br /> protective <br /> Level B provides maximal respiratory protection through <br /> -contained breathing apparatus; <br /> use of supplied air or self <br /> the level of dermal protection is selected on the basis <br /> of anticipated hazards. <br /> Level C incorporates an air-purifying respirator which <br /> is specific to the contaminants) of concern; the degree <br /> of dermal protection depends on anticipated dermal <br /> hazards. <br /> j <br /> 2 <br />