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National Water-Quality Assessment (NAWQA) Program

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Trace Elements National Synthesis Project

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Overview

Trace elements are inorganic chemicals usually occuring in small amounts in nature. Water managers and scientists across the US rate trace elements among the highest-priority issues for the National Water-Quality Assessment (NAWQA) program. NAWQA is studying 31 metals, metalloids, and radionuclides with the goal of understanding their distribution and release by human and natural influences.

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URL: http://water.usgs.gov/nawqa/trace/intro.html
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Page Last Modified: Tuesday, 04-Mar-2014 14:45:29 EST