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USGS Scientist Filtering Water Samples for Nitrogen Isotope Analysis

By Environmental Health Program 2004 (approx.)
USGS scientist filtering water samples for nitrogen isotope analysis during the tracer test on Sugar Creek, Indiana
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Detailed Description

USGS scientist filtering water samples for nitrogen isotope analysis during the tracer test on Sugar Creek, Indiana. Analysis of the tracer test data allowed for the direct observation of denitrification within the Creek.

Sources/Usage

Public Domain.