EPA’s Announcement of New Monitoring Requirements for Fine Particles, July 18, 1997

With the establishment of a new NAAQS for fine particles, EPA had to specify a new federal reference method for measuring fine particles, new criteria for placement of monitors, new schedules for data collection, and new procedures for ensuring the quality of particulate matter data.

The July 18, 2001 Federal Register notice spelling out the regulations for ambient air quality monitoring for fine particles may be found at: http://www.epa.gov/ttn/oarpg/naaqsfin/pm-mon.pdf.

A fact sheet on the monitoring requirements is available at: http://www.epa.gov/ttn/oarpg/naaqsfin/pmonfact.html.