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 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 This website is no longer updated and links to external websites and some internal pages may not work.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 »

Environmental Sampling and Analytical Methods (ESAM) Program

EPA Method 111: Determination of Polonium-210 Emissions from Stationary Sources


U.S. EPA, EMC, prepared by the Office of Air Quality Planning and Standards (OAQPS). 2000. “Method 111: Determination of Polonium-210 Emissions from Stationary Sources.”


Analytical Method


EPA’s Selected Analytical Methods for Environmental Remediation and Recovery (SAM) lists this method for qualitative and confirmatory analysis of polonium-210 in surface wipes and air filters.

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