Hi,

May be of interest:

Algal Toxins Detected in One-Third of Streams Assessed in Southeastern United States
http://www.usgs.gov/newsroom/article.asp?ID=4455&from=rss_home#.VsSZ3X6rTcs

Enjoy the day,
Emily

Emily C. Wild
Librarian (Physical Scientist)
U.S. Geological Survey, Denver Library
Denver Federal Center
ph: (303) 236-1003
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USGS Libraries: http://library.usgs.gov