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r r IIS r Ir � r i1r r r� rl �r r r r �r IIIA � �■�■ <br /> Table 2: Chemical Allowable Exposure Values and Exposure Symptoms <br /> Chemical TLV-TWA(a) STEL(b) PEL(`) Acute Exposure Symptoms Target Organs <br /> Diesel Range NE(d) NE NE NE NE <br /> Organics <br /> i <br /> (a) TLV-TWA=Threshold Limit Value—8-Hour time-weighted average. <br /> Handbook of Toxic Source: U.S. Department of Health and Human Services. NIOSH Pocket Guide to Chemical Hazards. June 1994. Sittig, Marshall. 1985. <br /> (b) STEL= Short—Term Exposure Limit—15-minute time-weighted average exposure not to be exceeded during a workday. <br /> (c) PEL= Permissible Exposure Limit—Maximum permitted 8-hour time-weighted average concentration of airborne contaminant. <br /> (d) NE = Not established. <br /> Health and Safety Plan Page 1 of 1 <br /> Union Pacific Railroad Company, Stockton Railyard Site, Stockton, California <br /> g:ladmnasslabs120031032777.16_unionPacific-stockbnyard104reportslg.09 reports1200s_hasplhasp.doc <br />