elements-of-concern-proxies-project.png
![Graphic of twelve elements of concern identified by Basin Managers in the Delaware River Basin, Illinois River Basin, and Upper Colorado River Basin as part of a 2021 survey that are studied by the Proxies Project..](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/media/images/elements-of-concern-proxies-project.png?itok=YKQIzSg9)
Detailed Description
Elements of Concern (EoC): The Proxies Project studies 12 EoC that Basin Managers in the Delaware River Basin, Illinois River Basin, and Upper Colorado River Basin identified as part of a 2021 survey. Of the 12 elements identified, there are:
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7 transition metals (Cd, Cu, Cr, Fe, Hg, Mn, Zn)
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2 post-transition metals (Al, Pb)
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1 metalloid (As)
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1 reactive non-metal (Se)
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1 actinoid (U)
Sources/Usage
Public Domain.