An official website of the United States government.

We've made some changes to EPA.gov. If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

EPA Research to Support States

FRMs/FEMs and Air Sensors Webinar Archive

On December 18, 2019, Andrea Clements and Bob Vanderpool from EPA's Office of Research and Development presented this webinar highlighting Federal Reference Methods/Federal Equivalent Methods and Air Sensors: Complementary Approaches for Determining Ambient Air Quality. The webinar focused on the relative advantages and disadvantages of the regulatory FRM/FEM instruments and of the sensor-based instruments used for non-regulatory monitoring. The complementary nature of these two measurement approaches was discussed for determining ambient air quality based on specific monitoring objectives. 

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