National security, unlocked. Each Thursday, host Mary Louise Kelly and a team of NPR correspondents discuss the biggest national security news of the week. With decades of reporting from battlefields ...
This page contains links to EPA's Compendium of Methods for the Determination of Toxic Organic Compounds in Ambient Air. The Compendium contains a set of 17 peer reviewed, standardized methods for the ...
Using EPA methods 533 and 537.1, a total of 29 unique per- and polyfluoroalkyl substances (PFAS) can effectively be measured in drinking water. PFAS Analytes Measured using Methods 533 and 537.1 (pdf) ...
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