In spite of claims by pharmaceutical companies that they do not discharge their products into the water supply, federal researchers have discovered that waters downstream of pharmaceutical plants are more heavily contaminated with drug residue than waters elsewhere in the country.
In one study, conducted by scientists at the U.S. Geological Survey (USGS), researchers tested the water entering two water treatment plants down the sewer line of several pharmaceutical factories, as well as at other plants not receiving sewage from drug plants. Researchers discovered drugs at "much higher detection frequencies and concentrations" at the plants receiving effluent from pharmaceutical factories. Drugs detected included opiates, a barbiturate and a tranquilizer.More...
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