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At Pacific Northwest National Laboratory, scientists are seeking quicker, more sensitive methods of monitoring contamination in the hyporehic zone, where groundwater and river water mix. Our mesocosm simulates the hyporehic zone by pumping actual Hanford Site groundwater through a sand layer while Columbia River flows over the top. With data from the mesocosm's sampling ports and state-of-the-art monitoring probes, the researchers will screen the periphyton and microbial community for biomarkers or biological signals that indicate uranium exposure. This work is funded by the Environmental Biomarkers Initiative.

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Document Title: Mesocosm Research
Category: Environmental Remediation
Media Type: Photos
Date of Image/Photo: May 8, 2007
Background:
URL of this page: http://picturethis.pnl.gov/picturet.nsf/by+id/DRAE-732_QT

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