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PM 2.5 -
Policy and Guidance

PM 2.5 Navigation

From the listing below, find the file you would like to download. The available file formats are represented by icons on the right side of the listing. Click on the icon that represents the file format you wish to receive. For an explanation of file formats and their icons, see our TTNWeb File Types.


Description Date Type
"National Ambient Air Quality Standard: Particulate Matter; Final Rule." This rule reduces the PM2.5 collocation requirement from 25% to 15%. 04/14/03 pdf icon
Air Monitoring Network Assessments memo and draft guidance document for conducting network assessments is posted in the "PM 2.5 Monitoring" area. 06/14/02 pdf icon
Copy of a memorandum approving the use of an alternative WINS impactor oil in PM2.5 federal reference method samplers is posted in the "Federal Reference Method" area. 01/26/01 pdf icon
Memorandum that transmits information on a national user modification allowing an extension of the PM2.5 mass filter retrieval period from 96 hours to 177 hours 03/01/02
A copy of the "6-day" sampling schedule calendar for 2001 12/06/00
A copy of the "1/6-day and 1/3-day" sampling schedule calendar for 2001 12/06/00
"Additional Methods of Maintenance for the R&P Partisol Plus Model 2025 Sequential Air Sampler" 10/17/00
"Additional Methods of Maintenance for the Andersen RAAS-300 Sequential Air Sampler" 10/17/00
A copy of "Draft Guidance for Acceptable Procedures for Archiving PM2.5 Samples" 02/07/00
A copy of the OAQPS/EMAD J. David Mobley 01/19/00 memorandum, "Additional Guidance on PM2.5 Cassette Handling and Transportation" 01/20/00
A copy of the OAQPS/EMAD J. David Mobley 12/21/99 memorandum, "Use of Collocated PM2.5 Data and Parameter Occurrence Codes" 01/03/00
A copy of the re-delegation of authority for archiving PM2.5 filters that are collected at SLAMS 12/06/99
A copy of the every 3rd and 6th day sampling schedule calendar for 2000 11/24/99
EPA/OAQPS June 11, 1999, J. David Mobley memorandum, "Use of PM Reference Methods and Daylight Savings Time" 06/22/99
OAQPS/EMAD 02/03/99, William F. Hunt, Jr., memorandum, "Use of Make-up PM Samples to Replace Scheduled PM Samples" 02/04/99
Copy of the every 3rd day sampling schedule calendar for 1999 10/07/98
Copy of the every 3rd day sampling schedule calendar for 1998 10/07/98
"Guidance for Using Continuous Monitors in PM2.5 Monitoring Networks," EPA-454/R-98-012, May 1998 (178pp, 1.4 MB) 06/05/98
OAQPS/EMAD 05/18/98, William F. Hunt, Jr., memorandum, "PM2.5 Site Types and Sampling Frequency During CY-99". 05/28/98
OAQPS/EMAD 04/09/98, William F. Hunt, Jr., memorandum, "Guidelines for Granting Exemptions for Daily PM2.5 Monitoring" 04/15/98


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