The most polluted rivers and streams in Europe

Europe’s rivers are awash with organic chemicals that can kill or subtly harm aquatic life, according to the most extensive survey yet of pollution in the continent’s major river basins.
Toxicologists contacted by New Scientist welcomed the study, but point out that the researchers may have exaggerated the risks by choosing to define relatively low levels of chemicals as harmful. Such small concentrations might well affect animal populations, but by themselves would probably not be enough to cause a population to collapse.

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