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ram <br /> Barth 19, 199 i <br /> Unocal Station tin. 6981, Stockton. Caliic�ntia <br /> TABLE 1 IL CONTAMINANTS <br /> EXPOSURE T,II:Ii'S Os `xvicelstationpATED HN o. c,98i <br /> [Inocale <br /> 1707 Pacific Street <br /> Stockton, California <br /> (page 2 of 2) <br /> STEL <br /> PEL EL ED <br /> CL TWA <br /> Contaminant time-weighted <br /> permissible exposure limit: 8 hour, <br /> PEL California occupational Safety and Health <br /> average CA[,-OSHA) <br /> Administration Standard ( ee may be <br /> EL - excursion limit: maximum concentr� plpy f an <br /> airborne contaminant to which ti provided the <br /> exposed without regard to duration <br /> 8 hour time-weighted average for PEL is not <br /> exceeded (CAL-OSHA) ermitted <br /> excursion duration: maximum time period p <br /> ED - exposure above limit but not <br /> for an exp the elimit (CAL-OSHA) <br /> exceeding the ceiling <br /> - ceiling limit: maximum concentration be of <br /> d <br /> CL airborne <br /> contamir.ant WY'jch employees <br /> permitted (CAL-OSHA) ( (same as threshold <br /> time-weighted average: 8 hour, <br /> TWA - TLV) ] , American Conference of <br /> limit values ( Hygienists (A.CGIH) kited <br /> Governmental Industrial t: 15 minute time--weig <br /> STEL short-term expasure limit: <br /> average (ACGIH) per cubic meter of air <br /> a - milligrams of substance <br /> (mg/m3 ) per million parts air <br /> * _ parts of gas or vapor P ' suspected or confirmed <br /> [cart] - substance identified as a <br /> carcinogen absorbed into the bloodstream <br /> substance may be eyes <br /> [skin] through the skin, mucous membranes, o ven for r pi2L and STEL; <br /> 1 - Federal OSHA benzene limits 9' <br /> STELSTEL has a 50 minute durationfor PEL; STEL 3s <br /> Federal OSHA gasoline limit qlven <br /> lim <br /> 2 r the same for FED-OSHA and ACGIH <br /> 38032.2 <br />