Concentrations of benzene, tetrachloroethylene, trichloroethylene, and vinyl chloride of the
order of 10, 20, 200, and 40 ppb, respectively, in indoor air were found to correspond to a 104 lifetime
risk of cancer for all of the chemicals.
Concentrations of benzene, tetrachloroethylene, trichloroethylene, and vinyl chloride of theorder of 10, 20, 200, and 40 ppb, respectively, in indoor air were found to correspond to a 104 lifetimerisk of cancer for all of the chemicals.
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