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Studies of contaminant biogeochemistry and microbial processes in surface waters

By Environmental Health Program 2012 (approx.)
Two images, 1) a man holding a mason jar of water, 2) a man pours water onto a sample bottle held by another person.
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Detailed Description

Left: USGS Employee L. Windham-Myers showing a surface water sample collected in acid-cleaned mason jar (deployed for 24 hours) for a mercury study conducted at the Cosumnes River Nature Preserve (CA).  Photographer: M. Marvin-DiPasquale. Date: 10/29/2014.

Right: USGS Researchers (M. Marvin-DiPasquale and L. Windham-Myers) collecting a surface water sample at the Cosumnes River Nature Preserve (CA). Photographer: J. Agee. Date: 2/9/2006.

Sources/Usage

Public Domain.