USGS

National Water-Quality Assessment (NAWQA)
National Analysis of Trace Elements

Publications on trace elements
in water, stream and reservoir bed sediments, and aquatic biota


Search all USGS publications through GeoRef

Trace elements across the United States

Trace elements in specific geographic areas

NAWQA Trace-Element Data Collection and Analytical Methods


National Analysis of Trace Elements
National Water-Quality Assessment (NAWQA)

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