News

Human-use pharmaceuticals are frequently present in many small streams, even those not receiving wastewater treatment plant discharges, reports a new...

Emerald-green harmful algal blooms (HABs) have become an all-too-familiar summertime sight in many U.S. lakes and reservoirs. A new USGS study reports...

Reducing delivery of nitrate to the Gulf of America is critical to decreasing the size of the “dead zone”—an area of hypoxia, or low dissolved oxygen...

SPARROW models, tools, and maps of streamflow, nutrients, and sediment for streams in five major U.S. regions

The herbicide glyphosate was detected at least once in 66 of 70 U.S. streams and rivers located in a range of land-use settings, according to a recent...

A new USGS study uses the SPARROW (SPAtially Referenced Regression On Watershed attributes) model to assess how nitrogen loading to the Chesapeake Bay...

Investigating the effects of historical phosphorus on current river water quality. 

The U.S. Geological Survey is seeking information from industry, academia, nonprofits, and research institutions on innovative technologies that...

Projected impacts include widespread loss of fish and invertebrate species in the region

New Phase of USGS Low-level Surveys Begins in November