Web Date: August 9, 2011
No Progress In Nitrate Cleanup Of Mississippi River
Despite decades of conservation efforts, nitrate pollution in the Mississippi River basin hasn’t improved. Between 1980 and 2008, nitrate levels have held steady at some sites in the river and its tributaries, while increasing by more than 70% at another, according to a new study by researchers at the U.S. Geological Survey (Environ. Sci. Technol., DOI: 10.1021/es201221s).
Since the mid-20th century, farmers in the Mississippi River basin have applied nitrogen and phosphorus fertilizer . . .
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