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United States Department of Agriculture

Agricultural Research Service

Image Number D1878-1

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Image Number D1878-1

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.

640 pixels wide: (d1878-1.jpg)

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Last Modified: 7/29/2010
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