AWWA ACE65465

AWWA ACE65465 From Slippery Slope Factor to Drinking Water Standard: How Risk Assessment Affects the Arsenic MCL
Conference Proceeding by American Water Works Association, 06/01/2007

Tsuji, Joyce S.

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This powerpoint presentation begins by providing an overview of the arsenic cancer slope factor and derivation of the maximum contamination limit (MCL). It goes on to outline the following topics: U.S. Environmental Protection Agency (USEPA) revision of the arsenic cancerslope factor;evidence for cancer risk at low doses; and,implications of slope factor revision forthe MCL and risk of backgroundarsenic exposures in the U.S.