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TABLE 10. COMPARISON OF DEri ECTED CONTAMINANTS TO <br /> ESTABLISHED TLV AND ?DLH LIMITS (mg/1,13) <br /> TLV- IDLH Wisconsin W<;shington Virginia <br /> Compound TWA <br /> ERT DNR <br /> Sulfur dioxide 5 - <br /> Carbon monoxide 55 -- -- -- <br /> Zinc -- -- 0.013 0.122 <br /> Lead 0.15 - -- - 0.011 <br /> Iron -- - -- -- -- 0.014 <br /> Cadmium 10 -- -- -- -- <br /> Chromium - - -- -- -- <br /> Copper -- - - -- -- -- <br /> Benzene 30 0.22 -- 9.68-10.6 -- <br /> Toluene 375 - 0.140 -- 0.03-6.70 -- <br /> Styrene 215 - 0.043 -- 0.04-3.41 -- <br /> Xylenes 435 - 0.072 __ total styrene/ <br /> toluene <br /> Ethyl benzene 435 0.047 -- -- -- <br /> Ethyl toluene -- 0.011 -- -- -- <br /> Methyl chloride (350) - 0.003 -- -- <br /> 1,1,1-Trichloroethene 1,900 0.024 -- -- -- <br /> Acetone 1,780 -- -- -- 0.55-0.57 -- <br /> Heptane 1,600 -- -- -- <0.02 -- <br /> Hexane 180 -- -- -- 0.18-0.21 -- <br /> Hexene -- - -- <0.02 -- <br /> Naphthalene 50 -- -- 0.82-1.32 0.461 <br /> Pentane 1,800 - -- 0.61-0.66 -- <br /> Ibiophene -- - -- 0.25-0.30 -- <br /> Benzo(a)pyrene - -- 0.013 -- 0.003 <br /> (Continued) <br /> 20 <br />