Trichloroethene (TCE) is a common groundwater contaminant. Interms of cancer risk, which would be better:
(1) to drink un-chlorinated groundwater groundwater with 10 ppbTCE, or (2) drink surface that, as aresult of chlorination, contains 50 ppb chloroform. Assume a30-year consumption period. The potency factor for TCE is 1.1×10^-2(mg/kg day)^-1 and the potency factor for chloroform is 6.1×10^-3(mg/kg day)^-1.
(Risk for TCE =1.35×10-6)
I know the risk equation is:(Potency Factor)( CDI) but I wasn't sure what volume to use for thecalculation since it isnt given
