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Science 27 April 2001:
Vol. 292. no. 5517, p. 617
DOI: 10.1126/science.292.5517.617c
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ScienceScope

After yanking a new rule for arsenic in drinking water that she felt was issued too hastily, Environmental Protection Agency chief Christie Whitman has now tossed the matter to the National Academy of Sciences (NAS).

The withdrawn Clinton-era rule would have lowered the acceptable level of arsenic, a carcinogen, from the current 50 parts per billion to 10 ppb. Whitman wants the NAS panel to examine the health impacts of levels between 3 and 20 ppb by August. An academy staffer explains, however, that the panel will not recommend the best level--that's not its role--but review recent research in updating a 1999 NAS study which urged only that the standard be tightened.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)