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dr <br /> TABLE 3 <br /> CHEMICAL ALLOWABLE EXPOSURE VALUES AND EXPOSURE SYMPTOMS <br /> (K/J 952704.01) <br /> TLV' - <br /> CHEMICAL TWA STEL PEL2 ACUTE EXPOSURE TARGET ORGAN S4 <br /> SYMPTOMS <br /> Tetrachloroethylene 25 ppm 100 ppm 25 ppm Irritated eyes, nose, throat, Liver, kidneys, eyes upper <br /> (PCE) (170 mg/m) (685 mg/m) (170 mg/m) nausea, flush face, neck, vertigo, respiratory system <br /> dizziness, incoherence, <br /> headache, suspected human <br /> carcinogen <br /> 1,1,1-Trichloroethane 350 ppm 450 ppm 350 ppm CNS depression, poor CNS, skin, eyes, Respiratory <br /> (TCA) (1 goo mg/m) (2460 mg/m3) (1900 mg/m) equilibrium, irritated eyes system, liver, kidneys <br /> Trichloroethylene 50 ppm 100 ppm 25 ppm Headache, vertigo, visual Respiratory system, heart, liver, <br /> (TCE) (270 mg/m) (540 mg/m) (135 mg/m) disturbance, tremors, nausea, CNS, skin, eyes <br /> vomiting, irritated eyes, <br /> dermatitis, cardiac arrhythmia, <br /> suspected human carcinogen <br /> Notes: <br /> 'TLV- TWA = Threshold Limit Value - 8 hr. Time Weighted Average <br /> STEL = Short Term Exposure Limit <br /> American Conference of Governmental Industrial Hygienists. Threshold Limit Values (TLV) and Biological Exposure Indices for 1995-1996. <br /> TLV-TWA reported in ppm represents parts of vapor per million parts of air by volume at 25°C and 760 torr. TLV- TWA reported in mg/m3 represents <br /> milligrams of substance per cubic meter of air. <br /> 2PEL = Permissible Exposure Level based on 8 hour time-weighted average <br /> 3Sittig, Marshall. 1985. Handbook of Toxic and Hazardous Chemicals and Carcinogens. Park Ridge, New Jersey. Noyes Publications. <br /> 4U S. Department of Health and Human Services. NIOSH Pocket Guide to Chemical Hazards. June 1994. <br />