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Analyses of 1999 PM Data for the PM NAAQS Review

These files document all analyses conducted in association with the EPA memorandum from Terence Fitz-Simons, Scott Mathias, and Mike Rizzo titled "Analyses of 1999 PM Data for the PM NAAQS Review," November 17, 2000. These analyses were conducted for the review of the Particulate Matter (PM) national ambient air quality standards (NAAQS). Both 1999 PM10 and PM2.5 data were extracted from EPA's Atmospheric Information Retrieval System (AIRS) data base on various dates in July, 2000. Each analysis is documented in a separate attachment to this memorandum. The following zipped files are available for downloading: