About half of these substances cannot be removed from the water supply.
Only Half of Drugs Removed by Sewage Treatment
Only about half of the prescription drugs and other newly emerging contaminants in sewage are removed by treatment plants says a new report
By Brian Bienkowski, Environmental Health News on November 22, 2013
https://www.scientificamerican.com/article/only-half-of-drugs-removed-by-sewage-treatment/
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