The study published January 6 in Proceedings of the National Academy of Sciences found that the bulk of PFAS entering and exiting wastewater treatment plants is made up of these fluorinated drugs.
Bridger Ruyle, study co-author, stated that "this pharmaceutical material doesn't get treated in the wastewater treatment plant, and it doesn't break down... these chemicals can be re-entering drinking water supplies."
The study estimates that this material contaminates the water supply of around 23 million Americans, highlighting a significant public health concern.
Notably, the researchers determined that the pharmaceuticals were largely not removed from the water by conventional wastewater treatment practices.
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