USGS Multimedia Gallery
Title: Fatbag Membrane
Description: Although oil and water do not normally mix, oil contaminants in waterways can be measured using a special membrane nicknamed a "fatbag." The fatbags absorb many fat-soluble chemicals from the water at a known rate, so they can be used to estimate the concentration of such chemicals.
Location: Cedar Key, FL, USA
Date Taken: May 19 2010
Photographer: Mike Randall , U.S. Geological Survey
Usage: This image is public domain/of free use unless otherwise stated. Please refer to the USGS Copyright section for how to credit the photo.
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