Air Emission Measurement Center (EMC)

Method 201A - PM10 and PM2.5 - Constant Sampling Rate Procedure

Do you have questions about a Test Method, Performance Specification or Source Category? Find the EMC contact for your question in the EMC Directory.

Supporting Information

Electronic Reporting Tool

Method and FAQ

You will need Adobe Reader to view some of the files on this page. See EPA’s About PDF page to learn more.

Method 201A Determination of PM10 and PM2.5 Emissions From Stationary Sources (Constant Sampling Rate Procedure) (PDF)(44 pp, 831 K)