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(CBS) Americans worried about the safety of their drinking water may have new cause for alarm.
A new study shows that tens of millions of us are drinking water contaminated with hexavalent chromium, a cancer-causing toxin that garnered national attention with the 2000 feature film "Erin Brockovich."
Recent tests found hexavalent chromium, a.k.a. chromium-6, in the drinking water of 31 of 35 cities tested, according to a statement issued by the Environmental Working Group, the Washingon, D.C.-based advocacy group that conducted the tests. Among the cities with the highest levels were Norman, Okla., Honolulu, and Riverside, Calif.
The study, the first of its kind to be made public, comes at a time when the EPA is considering whether to implement a national standard for hexavalent chromium in drinking water, the Washington Post reported. The compound was deemed a "probable carcinogen" by the National Institutes of Health in 2008. It's been linked to stomach cancer and leukemia, as well as other health conditions, Jane Houlihan, senior vice president of research for the group, told CBS News.
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A new study shows that tens of millions of us are drinking water contaminated with hexavalent chromium, a cancer-causing toxin that garnered national attention with the 2000 feature film "Erin Brockovich."
Recent tests found hexavalent chromium, a.k.a. chromium-6, in the drinking water of 31 of 35 cities tested, according to a statement issued by the Environmental Working Group, the Washingon, D.C.-based advocacy group that conducted the tests. Among the cities with the highest levels were Norman, Okla., Honolulu, and Riverside, Calif.
The study, the first of its kind to be made public, comes at a time when the EPA is considering whether to implement a national standard for hexavalent chromium in drinking water, the Washington Post reported. The compound was deemed a "probable carcinogen" by the National Institutes of Health in 2008. It's been linked to stomach cancer and leukemia, as well as other health conditions, Jane Houlihan, senior vice president of research for the group, told CBS News.
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