Air Emission Measurement Center (EMC)

EMC Recent Additions

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  • November 2014 - Draft methods OTM33 “Geospatial Measurement of Air Pollution, Remote Emissions Quantification” and OTM 33A “Geospatial Measurement of Air Pollution, Remote Emissions Quantification - Direct Assessment (GMAP-REQ-DA)” with their appendices and supporting data are now available. It is posted on our Other Test Methods page. These methods are being posted in draft form for public use and evaluation. If any end users have data, comments or suggestions related to this method, please contact Eben Thoma, EPA ORD, or Jason DeWees, EPA OAQPS,
  • August 2014 - A new method, OTM-35, "Measurement of Particulate Matter and Other Heavy Metals from Electric Arc Welding Processes," is now available on our Other Methods page
  • April 2014 - EPA issued interim guidance (PDF)(6 pp, 517 K, About PDF) for the treatment of condensible particulate matter test results in the PSD and NSR permitting programs on April 8, 2014. The file is also available under the Method 202 page.
  • March 2013 - The 2013 Measurement Technology Workshop was held on January 29-31, 2013, at the Environmental Protection Agency Main Campus in Research Triangle Park, North Carolina.

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