First global look finds most rivers awash with antibiotics
Each year, humans produce, prescribe, and ingest more antibiotics than they did the year before. Those drugs have done wonders for public health, saving millions from infections that might otherwise have killed them.
But the drugs' influence persists in the environment long after they've done their duty in human bodies. They leach into the outside world, where their presence can spur the development of “antibiotic resistant” strains of bacteria. In a new study that surveyed 91 rivers around the world, researchers found antibiotics in the waters of nearly two-thirds of all the sites they sampled, from the Thames to the Mekong to the Tigris.
That's a big deal, says Alistair Boxoll, the study's co-lead scientist and an environmental chemist at the University of York, in the U.K. “These are biologically active molecules, and we as a society are excreting tons of them into the environment,” he says.
That leads to the potential for huge effects on the ecology of the rivers—as well as on human health.
https://www.nationalgeographic.com/environment/2019/05/hundreds-of-worlds-rivers-contain-dangerous-levels-antibiotics/?cmpid=org=ngp::mc=crm-email::src=ngp::cmp=editorial::add=Science_20190605::rid=594148660
The article doesn't but I wonder how much of this has to do with aquaculture? Like cattle in feed lots near slaughter houses the fish in these farms are given antibiotics whether they need them or not.