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Area Designations for 1997 24-Hour PM2.5 NAAQS - Technical Information

Information provided for informational purposes onlyNote: EPA no longer updates this information, but it may be useful as a reference or resource.

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.

Certain links on this page will take the user to information found on the EPA technical information website for the ground-level ozone standard. After linking to any page on the ozone website, please click on the "BACK" button to return to this website for PM2.5.

I. PM2.5 Designations - Main Page
  1. Air Quality Monitoring Data
  2. Emission Inventory Data
  3. Demographics / Population Growth / Vehicle Miles Traveled / Commuting Info
  4. State and Metro Area Maps
  1.  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

  2.  Emission Inventory and Related Data
    1. EPA AirData - 1999 National Emission Inventory (ver. 2)
    2. Percent Frequency of Wind Direction by Season

  3.  Demographics/Population Growth/Vehicle Miles Traveled/Commuting Info
    1. 2000 Census Information
    2. Projected Population Growth
    3. Vehicle Miles Traveled (VMT)
    4. Number of workers who commute to an MSA which is outside their county of residence (Summary)
    5. Number of workers who commute to an MSA which is outside their county of residence (Detailed County Data)
    6. Where People Work - By State and County

  4.  State and Metro Area Maps
    1. State and MSA Maps
    2. Color Shaded Relief Maps by State

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