| AFP | A US environmental group has found that drinking water in 35 American cities contains hexavalent chromium, a probable carcinogen, The Washington Post reported Sunday. The study by the Environmental Working Group -- the first nationwide analysis measuring the presence of the chemical in US water systems -- is to be made public on Monday, the daily reported. The group found hexavalent chromium in the tap water of 31 out of 35 cities sampled. Of those, 25 had levels that exceeded the goal proposed in California, which has been trying aggressively to reduce the chemical in its water supply. Read
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