Human pollution is often evident from oil slicks and plastic drifting on shore, but many of the drugs humans consume also end up washing out into the water, and current effluent treatment isn’t equipped to deal with them. Drugs such as fluoxetine—also known as Prozac—creeping into waterways can embolden fish and alter their behavior, but pharmaceutical pollution doesn’t end with prescribed medication. Illegal drugs, such as methamphetamine, can also accumulate in waterways.
Click here for original story, Freshwater methamphetamine pollution turns brown trout into addicts
Source: Phys.org