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Area Designations for 1997 Fine Particle (PM2.5) Standards

Technical Information

Information provided for informational purposes only Note: EPA no longer updates this information, but it may be useful for historical purposes. See the PM Designations Home Page for more recent information about PM Designations.

EPA plans to designate geographic areas as attaining or not attaining the PM2.5 standards by the end of 2004. EPA requests that States and Tribes submit their recommendations to EPA by February 15, 2004. The information on this page is intended to support the PM2.5 designations process.

Air Quality Monitoring Data

  1. PM2.5 Air Quality Data for 2000-2002
  2. PM2.5 Air Quality Data for 1999-2001
  3. PM2.5 Chemical Composition Analysis Information
  4. PM Supersites Monitoring Program

Emission Inventory and Related Data

  1. EPA AirData
  2. Percent Frequency of Wind Direction by Season

Demographics/Population Growth/Vehicle Miles Traveled/Commuting Info

  1. 2000 Census Information
  2. Projected Population Growth (Census Bureau)


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