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Image Number D1878-1

Caption for May/June 2012 Agricultural Research magazine article, "150 Years of Making History: USDA's 150th Anniversary, May 15, 2012." Alone or with other partners, ARS conducts important environmental studies across the United States. A University of Maryland PhD student collects water samples from the Choptank River Watershed.

Caption for August 2010 Agricultural Research magazine article, "ARS Chesapeake Bay Research Intensifies." University of Maryland PhD student Gabriela Niño de Guzmán collects water samples for pesticide and antibiotics analyses in a stream within the Choptank River Watershed.


Photo by Peggy Greb.

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