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• i • <br /> Kennedy/Jenks Consultants <br /> TABLE 3 <br /> CHEMICAL ALLOWABLE EXPOSURE VALUES AND EXPOSURE SYMPTOMS <br /> (KIJ 910557 00) <br /> i <br />� <br /> TLV' <br /> CHEMICAL TWA STEL PEL ACUTE EXPOSURE SYMPT0MS3 TARGET ORGANS2 <br /> Benzene 10 ppm 5 ppm 1 ppm Irritant to eyes, nose respiratory Skin, liver, kidneys, respiratory <br /> 50 ppm110-min max system nausea system, cardiovascular system, <br /> central nervous system <br /> Ethylbenzene 100 ppm 125 ppm 100 ppm Irritant to eyes, mucous Skin, liver, kidneys, respiratory <br /> membranes, dermatitis, narcosis system, cardiovascular system, <br /> coma central nervous system <br /> Toluene 100 ppm110-hr 150 ppm 100 ppm Fatigue, weakness, confusion, Central nervous system, liver, <br /> 200 ppm/10-min 300 ppm ceding euphoria, dizziness, headache, kidneys, skin <br /> dilated pupils <br /> Xylene 100 ppm 150 ppm 100 ppm Dizziness, excitement, vomiting Central nervous system, eyes, GI <br /> tract, blood, liver, kidneys, skin <br /> Notes <br /> i TLV -TWA W 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 1988-1989 <br /> TLV-TWA reported in ppm represents parts of vapor per million parts of air by volume at 250C and 760 torr TLV-TWA reported in mglm represents milligrams of <br /> substance per cubic meter of air <br /> 2 PEL = federal OSHA (29 CFR 1910 Subpart Z) Permissible Exposure Level based on 8 hour time weighted average U S Department of Health and Human Services <br /> NIOSH Pocket Guide to Chemical Hazards February 1987 <br /> 3 Sittig, Marshall 1985 Handbook of Toxic and Hazardous Chemicals and Carcinogens Park Ridge, New Jersey Noyes Publications <br />