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Table-4:4- <br /> CHEMICALS <br /> able 41 CHEMICALS POTENTIALLY ASSOCIATED WITH THE 425 NORTH UNION STREET AND 1320 WEST WEBER STREET <br /> SITES(') <br /> .. <br /> ... .......... .. ....... .. ........... : : <br /> CHEMICAL r'r ... IbIH. aatlTiv&.OF:> . .. &;YMP'Ct3M.S OP PO1rEN71AL <br /> CAS:IVUMBf. I XPOSUREkIMITC21,. . I E1FEk EXPASURE ! EXPOSURE (eV1 <br /> POTENTIAL AROMATIC HYDROCARBON COMPOUNDS <br /> Benzene Ca-PEL = 1 ppm Cal3l Inhalation, absorption, Irritation of eyes,nose, respiratory system;giddiness, headache, 9.24 eV <br /> 71-43-2 STEL = 1 ppm 3,000 ppm ingestion, contact nausea,staggered gait;fatigue, anorexia, lassitudes,dermatitis; <br /> Cala) bone marrow depression;carcinogen. <br /> Ethylbenzene TLV = 100 ppm 2,000 ppm Inhalation, ingestion, Headache,dermatitis, eye and mucous membrane irritation; 8.76 eV <br /> 100-41-4 PEL = 100 ppm contact narcosis,coma. <br /> STEL = 125 ppm <br /> = Toluene PEL- = 100 ppm 2-,000 ppm - Inhalation, absorption, Fatigue, weakness;confusion, euphoriar dizziness;headache_ 8.82.eV <br /> 108-88-3 TLV = 50 ppm ingestion,contact dilated pupils,insomnia and dermatitis. <br /> STEL- = 150 ppm. <br /> Xylenes TLV = 100 ppm 1,000 ppm Inhalation, absorption, Headache;nausea;vomiting; abdominal pain;irritation eyes, nose, 8.56 eV <br /> 1330-20-7 PEL = 100 ppm ingestion,contact _ throat; dermatitis;dizziness,excitement,drowsiness,incoherence, <br /> STEL = 150 ppm staggering gait. <br /> (1) Petroleum and aromatic hydrocarbons are chemicals of concern based on previous investigations at the Site. <br /> (2) Most restrictive value listed: California PEL = OSHA, permissible exposure limit(during any 8-hr. work shift of'a 40-hr, work week);STEL-NIOS4709HA short-term <br /> exposure limit(a 15 minute exposure not to be exceeded at any time during the work day); Ceil-NIOSHIOSHA, concentration not to be exceeded at any time during the <br /> day; TLV = ACGIH,threshold limit value (concentration not to be exceeded during any 8-hr. work shift of a 40-hr. week). <br /> (3) NIOSH, occupational carcinogen. <br /> NIA Not available <br /> REFERENCES: NIOSH Pocket Guide to Chemical Hazards, 1990 <br /> ACGIH Threshold Limit Values for Chemical Substances and Physical Agents and Biological Exposure Indices, 1993-1994 <br /> 29-CFR 191.0.1000,Limits for Air Contaminants, 1993. <br /> 8 CCR 5155, PELs for Air Contaminants; 1993 <br /> Tomes Database <br /> F <br /> 45 <br />