News

At least one pharmaceutical chemical was detected in all 59 streams sampled

These are the first published studies to demonstrate water-quality impacts to a surface stream due to activities at an unconventional oil and gas...

A recent scientific study shows new, important information about how groundwater cannot only contribute nutrients such as nitrogen to lakes, but can...

Researchers have figured out what makes certain chemicals  accumulate to toxic levels in aquatic food webs. And, scientists have developed a screening...

USGS scientists have detected toxins known as microcystins produced by various forms of algae in 39 percent of the small streams assessed throughout...

Between 1990 and 2010, global mercury emissions from manmade sources declined 30 percent, according to a new analysis by Harvard University, Peking...

No, it’s not a sports drink for leeches, although that’s what it sounds like. Leachate is the solution (or suspension) that forms when liquid travels...

For the first time, land and resource managers in the Great Lakes will be able to distinguish between the various sources of mercury in the...

Fish health may be affected by pharmaceuticals in treated wastewater released into streams and other water bodies, according to a recent laboratory...

USGS scientists have conducted the first-ever field measurements of anammox activity in groundwater, demonstrating that nitrogen removal from...