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Federal reference and equivalent methods for measuring fine particulate matter: PM2.5 Federal Reference Method Sampler
Journal article   Open access   Peer reviewed

Federal reference and equivalent methods for measuring fine particulate matter: PM2.5 Federal Reference Method Sampler

Christopher A Noble, Robert W Vanderpool, Thomas M Peters, Frank F Mcelroy, David B Gemmill and Russell W Wiener
Aerosol science and technology, Vol.34(5), pp.457-464
2001
DOI: 10.1080/02786820121582
url
https://doi.org/10.1080/02786820121582View
Published (Version of record) Open Access

Abstract

In the national ambient air quality standards specified by the U.S. Environmental Protection Agency in the Code of Federal Regulations, new standards were established for particulate matter on July 18, 1997. The new particulate matter standards specify mass concentration as the indicator for tine particulate matter (aerodynamic diameter of 2.5 μm or less). Ambient measurements for the new particulate standard must be performed by a new federal reference method as specified in the Code of Federal Regulations or by an alternative measurement method that has been designated by the Environmental Protection Agency as an equivalent method. The new particulate reference method is a 24 h integrated sample collected from the ambient air and analyzed gravimetrically. The reference method is explicitly specified using a combination of design- and performance-based criteria. Additional requirements listed in the Code of Federal Regulations address conditioning, handling, and weighing of the sample filter, which are performed manually. For alternative measurement techniques that do not meet the qualifications of the reference method, the Environmental Protection Agency defines three classes of candidate PM2.5 equivalent methods based on the measurement technique used and its degree of similarity to the reference method specifications.
Meteorology Earth, ocean, space Exact sciences and technology External geophysics Geophysics. Techniques, methods, instrumentation and models Particles and aerosols

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