PFAS are linked to cancer, birth defects, diabetes and autoimmune problems. And the EPA just found that more than a hundred drinking water sources across Colorado contain PFAS.
More than a hundred drinking water sources across Colorado — ranging from cities and counties to elementary schools and campgrounds — contain what are now considered to be potentially hazardous levels ofAnd many more drinking water sources across the state are probably similarly contaminated but haven’t yet been tested, experts say, which is cause for concern and immediate action.
For context, 1 part per trillion amounts to a single drop of chemicals in 500,000 barrels of water, Thornton officials said in a release.higher than those trace amounts should notify their customers, EPA spokesman Rich Mylott said. But that notification isn’t specifically required, Mylott said.showed that more than 100 public drinking water sources in Colorado have concentrations of the chemicals.
Increased federal and local scrutiny of PFAS is good but overdue, Philippe Grandjean, adjunct professor of environmental health at Harvard, said. Scientists, regulators and the companies producing these chemicals have known of the risks involved for years or decades. For example, in 2020 one source of Aurora’s drinking water tested 800 times higher than the new federal levels for PFOA and 105 times higher for PFOS.
That’s still 500 times higher than the EPA’s health advisory level for PFOA and 100 times higher for PFOS.
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