USGS Report: Health of U.S. Streams Reduced by Streamflow Modifications, Contaminants
From the U.S. Geological Survey (USGS):
A new USGS report describes how the health of our nation’s streams is being degraded by streamflow modifications and elevated levels of nutrients and pesticides.
“The national assessment of stream health was unprecedented in the breadth of the measurements—including assessments of multiple biological communities as well as streamflow modifications and measurements of over 100 chemical constituents in water and streambed sediments. …
“Ecological Health in the Nation’s Streams, 1993-2005 (USGS Circular 1391, 132 pp.) is available online.”
Read more from the USGS news release