Government Information

Earl Gregg Swem Library

The Quality of our Nation’s Waters: Ecological Health in the Nation’s Streams, 1993-2005

Categories: Environment,Natural Resources,Science/Technology

http://pubs.usgs.gov/circ/1391/

Summarizes a national assessment of the health of U.S. streams.  The assessment covered streamflow modifications and measurements of over 100 chemical constituents in the water and in streambed sediment.  From the U.S. Geological Survey

 

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