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It had not occurred to me before what happens to all the pharmaceuticals we ingest and then excrete – now scientists have shown that some drugs can affect the temperament of marine life. An article in Science journal has reported that the water treatment process does not extract chemicals such as those found in contraceptive pills, (known as 17-β-estradiol), and the antidepressant drug fluoxetine (Prozac) nor those found in the anti-inflammatory drug ibuprofen. The extraction of the medicines is regarded as too costly and one that would generate a large carbon footprint.  But scientists are concerned that even though the impact is not lethal it does have a marked affect on the ecosystems and should be addressed.

To read more about this fascinating subject http://www.nature.com/news/anti-anxiety-drug-found-in-rivers-makes-fish-more-aggressive-1.12434

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