For the first time, the Environmental Protection Agency has warned that “forever chemicals” present in sewage sludge that is used as fertilizer can pose human health risks, saying in a study on Tuesday that, in some cases, the risks could exceed the agency’s safety thresholds “sometimes by several orders of magnitude.” The agency maintained, however, that the general food supply …
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Water fluoridation is widely seen as one of the great public health achievements of the 20th century, credited with widely reducing tooth decay. But there has been growing controversy among scientists about whether fluoride may be linked to lower I.Q. scores in children. A comprehensive federal analysis of scores of previous studies, published this week in JAMA Pediatrics, has added …
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As the world grapples with climate change, population growth and dwindling supplies of fresh water, more people are set to rely on treated wastewater to sustain their daily lives. But wastewater, even after treatment, contains high levels of harmful “forever chemicals” that are already contaminating the drinking water of millions of Americans, researchers said in a study published on Monday …
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