An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to www.epa.gov. This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Columbia River

Columbia River Strategy for Measuring, Documenting and Reducing Chemicals of Emerging Concern - July 2014

Cover image for Columbia River Chemcials of Emerging Concern Strategy

Columbia River Toxics Reduction Working Group: Strategy for Measuring, Documenting and Reducing Chemicals of Emerging Concern provides an outline for a research and monitoring strategy, and a characterization of the biological impacts of CECs on aquatic and terrestrial wildlife in the Columbia River Basin.

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.