Green Book National Area and County-Level Multi-Pollutant Information

1. Summary Nonattainment Area Population Exposure Report

   This report is a summary of the population living in an area that is in nonattainment for at least one of the National Ambient Air Quality Standards (NAAQS). It groups nonattainment areas that are in similar geographic locations and estimates the total estimated population for nonattainment areas for a single NAAQS, and across all criteria NAAQS.

2. Criteria Pollutant Nonattainment Area Summary Report

   This report includes the Number of Counties, Population and Classification with links to the list of counties in each area. The report is ordered by State then Area (all NAAQS included on a single line).

3. Details of Criteria Pollutant Nonattainment Area Summary Report

   This report contains in a list format the same information that is in the Criteria Pollutant Nonattainment Area Summary Report. The report order is by State, Area, NAAQS (each NAAQS on a separate line).

1. Nonattainment/Maintenance Area Status for Each County by Year for All Criteria Pollutants

   These state/county reports list the annual nonattainment and maintenance status of each county by designated area name by NAAQS. Additional area and county information is included, e.g., the area's classification, 2010 population, and a date of the area's redesignation to maintenance.

   Output from this report may be downloaded in xls and dbf formats from the Data Download section of the Green Book under the NAYRO heading.
   See: Data Download section of the Green Book.

2. Current Nonattainment Area Counties for All Criteria Pollutants

   This report includes only counties designated nonattainment, ordered by state, county, NAAQS.

3. Whole or Part County Nonattainment Status by Year for All Criteria Pollutants

   This state/county report lists the annual nonattainment status of each county by NAAQS.

   Output from this report may be downloaded in xls and dbf formats from the Data Download section of the Green Book under the PHISTORY heading.
   See: Data Download section of the Green Book.

1. Map of Number of NAAQS by County Designated Nonattainment - U.S. Map
2. Map of Number of NAAQS by County Designated Nonattainment or Maintenance - U.S. Map

These are links to the entire 40 CFR Part 81 area designation notice for all states.

1. 40 CFR PART 81 - Designation of Areas for Air Quality Planning Purposes

   This accesses the Electronic Code of Federal Regulations (e-CFR) database and links to the latest 40 CFR Part 81 published on the Government Printing Office (GPO) web site. After clicking on the link, page down to "Subpart C Section 107 Attainment Status Designations" and click on the link next to a state. Within the state, the nonattainment areas are listed by NAAQS.



2. 40 CFR PART 81 Air Quality Designations and Classifications (PDF)(165 pp, 9.3 MB)

   This is the November 6, 1991 version of the 40 CFR Part 81 area designation notice.