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1 ppmv benzene. This level is one tenth of the current -oeccupa- <br /> tional Permissible Exposure Limit (PEL) for an 8 hour exposure <br /> to benzene. <br /> Action Levels Of Hydrocarbon Components in Petroleum Fuel: <br /> Gasoline >300ppm PEL LEL'j > 10* <br /> Benzene > 1ppm " Oxygen <br /> Toluene >100ppm " <br /> P <br /> Xylene >100ppm n { <br /> Y <br /> Ethyl . Benzene >100ppm " <br /> A hydrocarbon vapor analyzer will be usedjto measure. real time <br /> breathing zone concentration for comparison with the 100 ppmv <br /> working limit. When a persistent level of!l100 ppmv is observed , <br /> appropriate respirators will be donned and other vapor <br /> measurements will be made . If hydrocarbon vapors exceed , 1000 <br /> ppmv or 10 ppm benzene , work will be stopped. the field crew <br /> will be instructed to stay up wind and methods will be applied <br /> to subdue fugitive vapor emissions ii, such as sprinkling soil <br /> with water , or the use of copus blower. <br /> The site Safety Officer will make such determinations. <br /> If LEL is >10% in or around the tank,I1! woik must stop and not <br /> commence until determined safe' and/orFLEL* <10%. <br /> If oxygen levels in the immediate work area are < 19 . 5% , work <br /> must stop until determinated safe an'd/or; levels are >19 . 5% , <br /> Symptoms Of Acute Overexposure: 'Gaso'line'land gasoline vapors <br /> maybe irritating to the skin , eyes and re.l`spiratory tract. <br /> Gasoline vapors may effect the central nervous system and may <br /> cause headaches and dizziness . <br /> Oxygen Deficiency: <br /> May cause dizziness . <br /> r <br /> ;E <br /> 1 <br /> E I� <br /> L <br /> i� <br /> �3 <br /> t <br /> I� <br />