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AIR • ••r HAZARDOUSE+ RISK ANALYSIS <br />Air Monitoring <br />'Me purpose of air monitoring is to identify and qualify airborne levels of hhazardo <br />Onsite.Them hasbeen 1 •contamination noted thus far• 1site. Airmonitoring will <br />not be performed unlesspreviously 1 • t ..:1.f significant contamination is <br />discovered <br />Whenever it is suspected that employees may be exposed to concentrations of air- <br />bornc contaminants is excess of permitted of permitted levels, monitoring of work <br />environment is required Evaluation assist in determining what control measures <br />can be developed and implemented to reduce exposure. Sampling is accomplished <br />by monitoring the immediate work area. Monitoring devices which con be used <br />include: <br />*OVM to detect total concentrations of Volatile Organic Compounds <br />The decision to implement monitoring must be performed when working conditions <br />change, such conditions in which it should be determined whether the possibility that <br />exposures have risen include, but are not limited to the following: <br />1- When work begins on a different section of the site. <br />2. When new contaminants are suspected or found <br />3. When a new phase of operation begins. <br />4 When employees are working ion areas of obvious contamination. <br />Organic •f t, . •, <br />Less 1 ..equal. 1 ppm .. .. . 1. <br />1 to 100 ••ft • ;.1 r• r+" <br />Benzene less than 0.5 • f protection <br />Benzene greater than f•11 <br />Response.• <br />. respiratory <br />Air puriffing respirator <br />Cease work andtake steps <br />to reduce concentrations to <br />acceptable <br />No Respiratory <br />Cease work and take stepsto <br />reduce concentrations to <br />acceptable levels. <br />Page 3 <br />