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i ppmv benzene. This level is one tenth of the current occupational <br />Permissible Exposuret.(PEL) for an 8 hour esure to benzene. <br />Action Level's of Hydrocarbon Components in Petroleum Fuel: <br />Gasoline >300ppm PEL LEL > 10% <br />Benzene > 1ppm PEL Oxygen <19.5% <br />Toluene >100ppm PEL <br />Xylene >100ppm PEL <br />Ethyl Benzene >100ppm PEI., <br />A hydrocarbon vapor analyzer will be used to measure real time <br />breathing zone concentration for comparison with the 100 ppmv working <br />limit. When a persistent level of 100 ppmv is observed, aproriate <br />respirators will be donned and other vapor measurements will -be -made. <br />If hydrocarbon vapors exceed 1 000 ppmv or 10 ppm benzene, work will <br />be stopped. The =i eld Crew will be instructed to Stay up Wind and <br />methods will be applied to subdue fugve vapor emissions such as <br />sprinkling Soil w=_*: water, or the use Of Copus b10Wer. <br />The s_te Sa=ety Officer will mak h de <br />e such te^rLinations . <br />If LE2 is >10% in or around the tank, work must stop and notcorru-uence <br />until determ_ned sa=e and/or LEDs <10%. <br />2= oxygen levels in the immediate work area are < 19.5%, work must <br />stop until deter•,ninated safe and/or levels are >19.5%. <br />Symptoms Of Acute overexposure: Gasoline and gasoline vapors maybe <br />irritating to the Skin, eyes and respiratory tract. Gasoline vapors <br />may of ect the central nervous system and may cause headaches and <br />dizziness. <br />Oxygen Deficiency: <br />May cause dizziness. <br />