Fish hooked on meth – the consequences of freshwater pollution

By Matt Parker, Senior Lecturer in Neuroscience and Psychopharmacology, University of Portsmouth
Alex Ford, Professor of Biology, University of Portsmouth

Around 269 million people worldwide use drugs each year. Often forgotten in this story is a problem of basic biology. What goes in must come out. Sewers are inundated with drugs that are excreted from the body, along with the broken down chemical components that have similar effects to the drugs themselves.

Sewage treatment plants don’t filter these things out – they were never designed for it. A lot of sewage also finds its way into rivers…

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