Jump to main content.


Currently Designated Nonattainment Areas for All Criteria Pollutants

Listed by State, County then Pollutant
As of August 15, 2008


State, County, Pollutant, * Part County NAA, NAA Area Name - Classification Standard

ALABAMA
  Jackson Co
    PM-2.5 * Chattanooga, AL-TN-GA - Nonattainment
 
  Jefferson Co
    PM-2.5 Birmingham, AL - Nonattainment
 
  Shelby Co
    PM-2.5 Birmingham, AL - Nonattainment
 
  Walker Co
    PM-2.5 * Birmingham, AL - Nonattainment
 

State, County, Pollutant, * Part County NAA, NAA Area Name - Classification Standard

ALASKA
  Anchorage Municipality
    PM-10 * Eagle River, AK - Moderate
 
  Juneau City and Borough
    PM-10 * Juneau, AK - Moderate
 

State, County, Pollutant, * Part County NAA, NAA Area Name - Classification Standard

ARIZONA
  Cochise Co
    PM-10 * Paul Spur/Douglas (Cochise County), AZ - Moderate
 
  Gila Co
    PM-10 * Hayden AZ - Moderate
    PM-10 * Miami, AZ - Moderate
 
  Maricopa Co
    8-Hr Ozone * Phoenix-Mesa, AZ - Subpart 1
    PM-10 * Phoenix, AZ - Serious
 
  Pima Co
    PM-10 * Ajo (Pima County), AZ - Moderate
    PM-10 * Rillito, AZ - Moderate
 
  Pinal Co
    8-Hr Ozone * Phoenix-Mesa, AZ - Subpart 1
    PM-10 * Hayden AZ - Moderate
    PM-10 * Phoenix, AZ - Serious
    SO2 * Hayden (Pinal County), AZ - Primary
 
  Santa Cruz Co
    PM-10 * Nogales, AZ - Moderate
 
  Yuma Co
    PM-10 * Yuma, AZ - Moderate
 

State, County, Pollutant, * Part County NAA, NAA Area Name - Classification Standard

ARKANSAS
  Crittenden Co
    8-Hr Ozone Memphis, TN-AR - Moderate
 

State, County, Pollutant, * Part County NAA, NAA Area Name - Classification Standard

CALIFORNIA
  Alameda Co
    8-Hr Ozone San Francisco Bay Area, CA - Marginal
 
  Amador Co
    8-Hr Ozone Amador and Calaveras Cos (Central Mtn), CA - Subpart 1
 
  Butte Co
    8-Hr Ozone Chico, CA - Subpart 1
 
  Calaveras Co
    8-Hr Ozone Amador and Calaveras Cos (Central Mtn), CA - Subpart 1
 
  Contra Costa Co
    8-Hr Ozone San Francisco Bay Area, CA - Marginal
 
  El Dorado Co
    8-Hr Ozone * Sacramento Metro, CA - Serious
 
  Fresno Co
    8-Hr Ozone San Joaquin Valley, CA - Serious
    PM-10 * San Joaquin Valley, CA - Serious
    PM-2.5 San Joaquin Valley, CA - Nonattainment
 
  Imperial Co
    8-Hr Ozone Imperial Co, CA - Moderate
    PM-10 * Imperial Valley, CA - Serious
 
  Inyo Co
    PM-10 * Coso Junction, CA - Moderate
    PM-10 * Owens Valley, CA - Serious
 
  Kern Co
    8-Hr Ozone * Kern Co (Eastern Kern), CA - Subpart 1
    8-Hr Ozone * San Joaquin Valley, CA - Serious
    PM-10 * San Joaquin Valley, CA - Serious
    PM-2.5 * San Joaquin Valley, CA - Nonattainment
 
  Kings Co
    8-Hr Ozone San Joaquin Valley, CA - Serious
    PM-10 * San Joaquin Valley, CA - Serious
    PM-2.5 San Joaquin Valley, CA - Nonattainment
 
  Los Angeles Co
    8-Hr Ozone * Los Angeles South Coast Air Basin, CA - Severe 17
    8-Hr Ozone * Los Angeles-San Bernardino Cos(W Mojave),CA - Moderate
    PM-10 * Los Angeles South Coast Air Basin, CA - Serious
    PM-2.5 * Los Angeles-South Coast Air Basin, CA - Nonattainment
 
  Madera Co
    8-Hr Ozone San Joaquin Valley, CA - Serious
    PM-10 * San Joaquin Valley, CA - Serious
    PM-2.5 San Joaquin Valley, CA - Nonattainment
 
  Marin Co
    8-Hr Ozone San Francisco Bay Area, CA - Marginal
 
  Mariposa Co
    8-Hr Ozone Mariposa and Tuolumne Cos (Southern Mtn),CA - Subpart 1
 
  Merced Co
    8-Hr Ozone San Joaquin Valley, CA - Serious
    PM-2.5 San Joaquin Valley, CA - Nonattainment
 
  Mono Co
    PM-10 * Mammoth Lake, CA - Moderate
    PM-10 * Mono Basin, CA - Moderate
 
  Napa Co
    8-Hr Ozone San Francisco Bay Area, CA - Marginal
 
  Nevada Co
    8-Hr Ozone * Nevada Co. (Western Part), CA - Subpart 1
 
  Orange Co
    8-Hr Ozone Los Angeles South Coast Air Basin, CA - Severe 17
    PM-10 Los Angeles South Coast Air Basin, CA - Serious
    PM-2.5 Los Angeles-South Coast Air Basin, CA - Nonattainment
 
  Placer Co
    8-Hr Ozone * Sacramento Metro, CA - Serious
 
  Riverside Co
    8-Hr Ozone * Los Angeles South Coast Air Basin, CA - Severe 17
    8-Hr Ozone * Riverside Co, (Coachella Valley), CA - Serious
    PM-10 * Coachella Valley, CA - Serious
    PM-10 * Los Angeles South Coast Air Basin, CA - Serious
    PM-2.5 * Los Angeles-South Coast Air Basin, CA - Nonattainment
 
  Sacramento Co
    8-Hr Ozone Sacramento Metro, CA - Serious
    PM-10 Sacramento Co, CA - Moderate
 
  San Bernardino Co
    8-Hr Ozone * Los Angeles South Coast Air Basin, CA - Severe 17
    8-Hr Ozone * Los Angeles-San Bernardino Cos(W Mojave),CA - Moderate
    PM-10 * Los Angeles South Coast Air Basin, CA - Serious
    PM-10 * San Bernardino Co, CA - Moderate
    PM-10 * Trona, CA - Moderate
    PM-2.5 * Los Angeles-South Coast Air Basin, CA - Nonattainment
 
  San Diego Co
    8-Hr Ozone * San Diego, CA - Subpart 1
 
  San Francisco Co
    8-Hr Ozone San Francisco Bay Area, CA - Marginal
 
  San Joaquin Co
    8-Hr Ozone San Joaquin Valley, CA - Serious
    PM-10 * San Joaquin Valley, CA - Serious
    PM-2.5 San Joaquin Valley, CA - Nonattainment
 
  San Mateo Co
    8-Hr Ozone San Francisco Bay Area, CA - Marginal
 
  Santa Clara Co
    8-Hr Ozone San Francisco Bay Area, CA - Marginal
 
  Solano Co
    8-Hr Ozone * Sacramento Metro, CA - Serious
    8-Hr Ozone * San Francisco Bay Area, CA - Marginal
 
  Sonoma Co
    8-Hr Ozone * San Francisco Bay Area, CA - Marginal
 
  Stanislaus Co
    8-Hr Ozone San Joaquin Valley, CA - Serious
    PM-10 * San Joaquin Valley, CA - Serious
    PM-2.5 San Joaquin Valley, CA - Nonattainment
 
  Sutter Co
    8-Hr Ozone * Sacramento Metro, CA - Serious
    8-Hr Ozone * Sutter Co (Sutter Buttes), CA - Subpart 1
 
  Tulare Co
    8-Hr Ozone San Joaquin Valley, CA - Serious
    PM-10 * San Joaquin Valley, CA - Serious
    PM-2.5 San Joaquin Valley, CA - Nonattainment
 
  Tuolumne Co
    8-Hr Ozone Mariposa and Tuolumne Cos (Southern Mtn),CA - Subpart 1
 
  Ventura Co
    8-Hr Ozone * Ventura Co, CA - Serious
 
  Yolo Co
    8-Hr Ozone Sacramento Metro, CA - Serious
 

State, County, Pollutant, * Part County NAA, NAA Area Name - Classification Standard

COLORADO
  Adams Co
    8-Hr Ozone Denver-Boulder-Greeley-Ft Collins-Love., CO - Subpart 1
 
  Arapahoe Co
    8-Hr Ozone Denver-Boulder-Greeley-Ft Collins-Love., CO - Subpart 1
 
  Boulder Co
    8-Hr Ozone Denver-Boulder-Greeley-Ft Collins-Love., CO - Subpart 1
 
  Broomfield Co
    8-Hr Ozone Denver-Boulder-Greeley-Ft Collins-Love., CO - Subpart 1
 
  Denver Co
    8-Hr Ozone Denver-Boulder-Greeley-Ft Collins-Love., CO - Subpart 1
 
  Douglas Co
    8-Hr Ozone Denver-Boulder-Greeley-Ft Collins-Love., CO - Subpart 1
 
  Jefferson Co
    8-Hr Ozone Denver-Boulder-Greeley-Ft Collins-Love., CO - Subpart 1
 
  Larimer Co
    8-Hr Ozone * Denver-Boulder-Greeley-Ft Collins-Love., CO - Subpart 1
 
  Weld Co
    8-Hr Ozone * Denver-Boulder-Greeley-Ft Collins-Love., CO - Subpart 1
 

State, County, Pollutant, * Part County NAA, NAA Area Name - Classification Standard

CONNECTICUT
  Fairfield Co
    8-Hr Ozone New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
    PM-2.5 New York-N. New Jersey-Long Island,NY-NJ-CT - Nonattainment
 
  Hartford Co
    8-Hr Ozone Greater Connecticut, CT - Moderate
 
  Litchfield Co
    8-Hr Ozone Greater Connecticut, CT - Moderate
 
  Middlesex Co
    8-Hr Ozone New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
 
  New Haven Co
    8-Hr Ozone New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
    PM-2.5 New York-N. New Jersey-Long Island,NY-NJ-CT - Nonattainment
 
  New London Co
    8-Hr Ozone Greater Connecticut, CT - Moderate
 
  Tolland Co
    8-Hr Ozone Greater Connecticut, CT - Moderate
 
  Windham Co
    8-Hr Ozone Greater Connecticut, CT - Moderate
 

State, County, Pollutant, * Part County NAA, NAA Area Name - Classification Standard

DELAWARE
  Kent Co
    8-Hr Ozone Philadelphia-Wilmin-Atlantic Ci,PA-NJ-MD-DE - Moderate
 
  New Castle Co
    8-Hr Ozone Philadelphia-Wilmin-Atlantic Ci,PA-NJ-MD-DE - Moderate
    PM-2.5 Philadelphia-Wilmington, PA-NJ-DE - Nonattainment
 
  Sussex Co
    8-Hr Ozone Philadelphia-Wilmin-Atlantic Ci,PA-NJ-MD-DE - Moderate
 

State, County, Pollutant, * Part County NAA, NAA Area Name - Classification Standard

DISTRICT OF COLUMBIA
  Entire District
    8-Hr Ozone Washington, DC-MD-VA - Moderate
    PM-2.5 Washington, DC-MD-VA - Nonattainment
 

State, County, Pollutant, * Part County NAA, NAA Area Name - Classification Standard

GEORGIA
  Barrow Co
    8-Hr Ozone Atlanta, GA - Moderate
    PM-2.5 Atlanta, GA - Nonattainment
 
  Bartow Co
    8-Hr Ozone Atlanta, GA - Moderate
    PM-2.5 Atlanta, GA - Nonattainment
 
  Bibb Co
    PM-2.5 Macon, GA - Nonattainment
 
  Carroll Co
    8-Hr Ozone Atlanta, GA - Moderate
    PM-2.5 Atlanta, GA - Nonattainment
 
  Catoosa Co
    PM-2.5 Chattanooga, AL-TN-GA - Nonattainment
 
  Cherokee Co
    8-Hr Ozone Atlanta, GA - Moderate
    PM-2.5 Atlanta, GA - Nonattainment
 
  Clayton Co
    8-Hr Ozone Atlanta, GA - Moderate
    PM-2.5 Atlanta, GA - Nonattainment
 
  Cobb Co
    8-Hr Ozone Atlanta, GA - Moderate
    PM-2.5 Atlanta, GA - Nonattainment
 
  Coweta Co
    8-Hr Ozone Atlanta, GA - Moderate
    PM-2.5 Atlanta, GA - Nonattainment
 
  De Kalb Co
    8-Hr Ozone Atlanta, GA - Moderate
    PM-2.5 Atlanta, GA - Nonattainment
 
  Douglas Co
    8-Hr Ozone Atlanta, GA - Moderate
    PM-2.5 Atlanta, GA - Nonattainment
 
  Fayette Co
    8-Hr Ozone Atlanta, GA - Moderate
    PM-2.5 Atlanta, GA - Nonattainment
 
  Floyd Co
    PM-2.5 Rome, GA - Nonattainment
 
  Forsyth Co
    8-Hr Ozone Atlanta, GA - Moderate
    PM-2.5 Atlanta, GA - Nonattainment
 
  Fulton Co
    8-Hr Ozone Atlanta, GA - Moderate
    PM-2.5 Atlanta, GA - Nonattainment
 
  Gwinnett Co
    8-Hr Ozone Atlanta, GA - Moderate
    PM-2.5 Atlanta, GA - Nonattainment
 
  Hall Co
    8-Hr Ozone Atlanta, GA - Moderate
    PM-2.5 Atlanta, GA - Nonattainment
 
  Heard Co
    PM-2.5 * Atlanta, GA - Nonattainment
 
  Henry Co
    8-Hr Ozone Atlanta, GA - Moderate
    PM-2.5 Atlanta, GA - Nonattainment
 
  Monroe Co
    PM-2.5 * Macon, GA - Nonattainment
 
  Newton Co
    8-Hr Ozone Atlanta, GA - Moderate
    PM-2.5 Atlanta, GA - Nonattainment
 
  Paulding Co
    8-Hr Ozone Atlanta, GA - Moderate
    PM-2.5 Atlanta, GA - Nonattainment
 
  Putnam Co
    PM-2.5 * Atlanta, GA - Nonattainment
 
  Rockdale Co
    8-Hr Ozone Atlanta, GA - Moderate
    PM-2.5 Atlanta, GA - Nonattainment
 
  Spalding Co
    8-Hr Ozone Atlanta, GA - Moderate
    PM-2.5 Atlanta, GA - Nonattainment
 
  Walker Co
    PM-2.5 Chattanooga, AL-TN-GA - Nonattainment
 
  Walton Co
    8-Hr Ozone Atlanta, GA - Moderate
    PM-2.5 Atlanta, GA - Nonattainment
 

State, County, Pollutant, * Part County NAA, NAA Area Name - Classification Standard

GUAM
  Piti
    SO2 * Piti, GU - Primary
 
  Tanguisson
    SO2 * Tanguisson, GU - Primary
 

State, County, Pollutant, * Part County NAA, NAA Area Name - Classification Standard

IDAHO
  Bannock Co
    PM-10 * Fort Hall Reservation, ID - Moderate
 
  Bonner Co
    PM-10 * Bonner Co (Sandpoint), ID - Moderate
 
  Power Co
    PM-10 * Fort Hall Reservation, ID - Moderate
 
  Shoshone Co
    PM-10 * Pinehurst, ID - Moderate
    PM-10 * Shoshone Co, ID - Moderate
 

State, County, Pollutant, * Part County NAA, NAA Area Name - Classification Standard

ILLINOIS
  Cook Co
    8-Hr Ozone Chicago-Gary-Lake County, IL-IN - Moderate
    PM-2.5 Chicago-Gary-Lake County, IL-IN - Nonattainment
 
  Du Page Co
    8-Hr Ozone Chicago-Gary-Lake County, IL-IN - Moderate
    PM-2.5 Chicago-Gary-Lake County, IL-IN - Nonattainment
 
  Grundy Co
    8-Hr Ozone * Chicago-Gary-Lake County, IL-IN - Moderate
    PM-2.5 * Chicago-Gary-Lake County, IL-IN - Nonattainment
 
  Jersey Co
    8-Hr Ozone St Louis, MO-IL - Moderate
 
  Kane Co
    8-Hr Ozone Chicago-Gary-Lake County, IL-IN - Moderate
    PM-2.5 Chicago-Gary-Lake County, IL-IN - Nonattainment
 
  Kendall Co
    8-Hr Ozone * Chicago-Gary-Lake County, IL-IN - Moderate
    PM-2.5 * Chicago-Gary-Lake County, IL-IN - Nonattainment
 
  Lake Co
    8-Hr Ozone Chicago-Gary-Lake County, IL-IN - Moderate
    PM-2.5 Chicago-Gary-Lake County, IL-IN - Nonattainment
 
  Madison Co
    8-Hr Ozone St Louis, MO-IL - Moderate
    PM-2.5 St. Louis, MO-IL - Nonattainment
 
  Mc Henry Co
    8-Hr Ozone Chicago-Gary-Lake County, IL-IN - Moderate
    PM-2.5 Chicago-Gary-Lake County, IL-IN - Nonattainment
 
  Monroe Co
    8-Hr Ozone St Louis, MO-IL - Moderate
    PM-2.5 St. Louis, MO-IL - Nonattainment
 
  Randolph Co
    PM-2.5 * St. Louis, MO-IL - Nonattainment
 
  St Clair Co
    8-Hr Ozone St Louis, MO-IL - Moderate
    PM-2.5 St. Louis, MO-IL - Nonattainment
 
  Will Co
    8-Hr Ozone Chicago-Gary-Lake County, IL-IN - Moderate
    PM-2.5 Chicago-Gary-Lake County, IL-IN - Nonattainment
 

State, County, Pollutant, * Part County NAA, NAA Area Name - Classification Standard

INDIANA
  Clark Co
    PM-2.5 Louisville, KY-IN - Nonattainment
 
  Dearborn Co
    8-Hr Ozone * Cincinnati-Hamilton, OH-KY-IN - Subpart 1
    PM-2.5 * Cincinnati-Hamilton, OH-KY-IN - Nonattainment
 
  Dubois Co
    PM-2.5 Evansville, IN - Nonattainment
 
  Floyd Co
    PM-2.5 Louisville, KY-IN - Nonattainment
 
  Gibson Co
    PM-2.5 * Evansville, IN - Nonattainment
 
  Hamilton Co
    PM-2.5 Indianapolis, IN - Nonattainment
 
  Hendricks Co
    PM-2.5 Indianapolis, IN - Nonattainment
 
  Jefferson Co
    PM-2.5 * Louisville, KY-IN - Nonattainment
 
  Johnson Co
    PM-2.5 Indianapolis, IN - Nonattainment
 
  Lake Co
    8-Hr Ozone Chicago-Gary-Lake County, IL-IN - Moderate
    PM-2.5 Chicago-Gary-Lake County, IL-IN - Nonattainment
 
  Marion Co
    PM-2.5 Indianapolis, IN - Nonattainment
 
  Morgan Co
    PM-2.5 Indianapolis, IN - Nonattainment
 
  Pike Co
    PM-2.5 * Evansville, IN - Nonattainment
 
  Porter Co
    8-Hr Ozone Chicago-Gary-Lake County, IL-IN - Moderate
    PM-2.5 Chicago-Gary-Lake County, IL-IN - Nonattainment
 
  Spencer Co
    PM-2.5 * Evansville, IN - Nonattainment
 
  Vanderburgh Co
    PM-2.5 Evansville, IN - Nonattainment
 
  Warrick Co
    PM-2.5 Evansville, IN - Nonattainment
 

State, County, Pollutant, * Part County NAA, NAA Area Name - Classification Standard

KENTUCKY
  Boone Co
    8-Hr Ozone Cincinnati-Hamilton, OH-KY-IN - Subpart 1
    PM-2.5 Cincinnati-Hamilton, OH-KY-IN - Nonattainment
 
  Boyd Co
    PM-2.5 Huntington-Ashland, WV-KY-OH - Nonattainment
 
  Bullitt Co
    PM-2.5 Louisville, KY-IN - Nonattainment
 
  Campbell Co
    8-Hr Ozone Cincinnati-Hamilton, OH-KY-IN - Subpart 1
    PM-2.5 Cincinnati-Hamilton, OH-KY-IN - Nonattainment
 
  Jefferson Co
    PM-2.5 Louisville, KY-IN - Nonattainment
 
  Kenton Co
    8-Hr Ozone Cincinnati-Hamilton, OH-KY-IN - Subpart 1
    PM-2.5 Cincinnati-Hamilton, OH-KY-IN - Nonattainment
 
  Lawrence Co
    PM-2.5 * Huntington-Ashland, WV-KY-OH - Nonattainment
 

State, County, Pollutant, * Part County NAA, NAA Area Name - Classification Standard

LOUISIANA
  Ascension Par
    8-Hr Ozone Baton Rouge, LA - Moderate
 
  East Baton Rouge Par
    8-Hr Ozone Baton Rouge, LA - Moderate
 
  Iberville Par
    8-Hr Ozone Baton Rouge, LA - Moderate
 
  Livingston Par
    8-Hr Ozone Baton Rouge, LA - Moderate
 
  West Baton Rouge Par
    8-Hr Ozone Baton Rouge, LA - Moderate
 

State, County, Pollutant, * Part County NAA, NAA Area Name - Classification Standard

MARYLAND
  Anne Arundel Co
    8-Hr Ozone Baltimore, MD - Moderate
    PM-2.5 Baltimore, MD - Nonattainment
 
  Baltimore (City)
    8-Hr Ozone Baltimore, MD - Moderate
    PM-2.5 Baltimore, MD - Nonattainment
 
  Baltimore Co
    8-Hr Ozone Baltimore, MD - Moderate
    PM-2.5 Baltimore, MD - Nonattainment
 
  Calvert Co
    8-Hr Ozone Washington, DC-MD-VA - Moderate
 
  Carroll Co
    8-Hr Ozone Baltimore, MD - Moderate
    PM-2.5 Baltimore, MD - Nonattainment
 
  Cecil Co
    8-Hr Ozone Philadelphia-Wilmin-Atlantic Ci,PA-NJ-MD-DE - Moderate
 
  Charles Co
    8-Hr Ozone Washington, DC-MD-VA - Moderate
    PM-2.5 Washington, DC-MD-VA - Nonattainment
 
  Frederick Co
    8-Hr Ozone Washington, DC-MD-VA - Moderate
    PM-2.5 Washington, DC-MD-VA - Nonattainment
 
  Harford Co
    8-Hr Ozone Baltimore, MD - Moderate
    PM-2.5 Baltimore, MD - Nonattainment
 
  Howard Co
    8-Hr Ozone Baltimore, MD - Moderate
    PM-2.5 Baltimore, MD - Nonattainment
 
  Montgomery Co
    8-Hr Ozone Washington, DC-MD-VA - Moderate
    PM-2.5 Washington, DC-MD-VA - Nonattainment
 
  Prince George's Co
    8-Hr Ozone Washington, DC-MD-VA - Moderate
    PM-2.5 Washington, DC-MD-VA - Nonattainment
 
  Washington Co
    PM-2.5 Martinsburg, WV-Hagerstown, MD - Nonattainment
 

State, County, Pollutant, * Part County NAA, NAA Area Name - Classification Standard

MASSACHUSETTS
  Barnstable Co
    8-Hr Ozone Boston-Lawrence-Worcester (E. MA), MA - Moderate
 
  Berkshire Co
    8-Hr Ozone Springfield (Western MA), MA - Moderate
 
  Bristol Co
    8-Hr Ozone Boston-Lawrence-Worcester (E. MA), MA - Moderate
 
  Dukes Co
    8-Hr Ozone Boston-Lawrence-Worcester (E. MA), MA - Moderate
 
  Essex Co
    8-Hr Ozone Boston-Lawrence-Worcester (E. MA), MA - Moderate
 
  Franklin Co
    8-Hr Ozone Springfield (Western MA), MA - Moderate
 
  Hampden Co
    8-Hr Ozone Springfield (Western MA), MA - Moderate
 
  Hampshire Co
    8-Hr Ozone Springfield (Western MA), MA - Moderate
 
  Middlesex Co
    8-Hr Ozone Boston-Lawrence-Worcester (E. MA), MA - Moderate
 
  Nantucket Co
    8-Hr Ozone Boston-Lawrence-Worcester (E. MA), MA - Moderate
 
  Norfolk Co
    8-Hr Ozone Boston-Lawrence-Worcester (E. MA), MA - Moderate
 
  Plymouth Co
    8-Hr Ozone Boston-Lawrence-Worcester (E. MA), MA - Moderate
 
  Suffolk Co
    8-Hr Ozone Boston-Lawrence-Worcester (E. MA), MA - Moderate
 
  Worcester Co
    8-Hr Ozone Boston-Lawrence-Worcester (E. MA), MA - Moderate
 

State, County, Pollutant, * Part County NAA, NAA Area Name - Classification Standard

MICHIGAN
  Allegan Co
    8-Hr Ozone Allegan Co, MI - Subpart 1
 
  Lenawee Co
    8-Hr Ozone Detroit-Ann Arbor, MI - Marginal
 
  Livingston Co
    8-Hr Ozone Detroit-Ann Arbor, MI - Marginal
    PM-2.5 Detroit-Ann Arbor, MI - Nonattainment
 
  Macomb Co
    8-Hr Ozone Detroit-Ann Arbor, MI - Marginal
    PM-2.5 Detroit-Ann Arbor, MI - Nonattainment
 
  Monroe Co
    8-Hr Ozone Detroit-Ann Arbor, MI - Marginal
    PM-2.5 Detroit-Ann Arbor, MI - Nonattainment
 
  Oakland Co
    8-Hr Ozone Detroit-Ann Arbor, MI - Marginal
    PM-2.5 Detroit-Ann Arbor, MI - Nonattainment
 
  St Clair Co
    8-Hr Ozone Detroit-Ann Arbor, MI - Marginal
    PM-2.5 Detroit-Ann Arbor, MI - Nonattainment
 
  Washtenaw Co
    8-Hr Ozone Detroit-Ann Arbor, MI - Marginal
    PM-2.5 Detroit-Ann Arbor, MI - Nonattainment
 
  Wayne Co
    8-Hr Ozone Detroit-Ann Arbor, MI - Marginal
    PM-2.5 Detroit-Ann Arbor, MI - Nonattainment
 

State, County, Pollutant, * Part County NAA, NAA Area Name - Classification Standard

MISSOURI
  Franklin Co
    8-Hr Ozone St Louis, MO-IL - Moderate
    PM-2.5 St. Louis, MO-IL - Nonattainment
 
  Jefferson Co
    8-Hr Ozone St Louis, MO-IL - Moderate
    Lead * Jefferson County (part); Herculaneum, MO -
    PM-2.5 St. Louis, MO-IL - Nonattainment
 
  St Charles Co
    8-Hr Ozone St Louis, MO-IL - Moderate
    PM-2.5 St. Louis, MO-IL - Nonattainment
 
  St Louis
    8-Hr Ozone St Louis, MO-IL - Moderate
    PM-2.5 St. Louis, MO-IL - Nonattainment
 
  St Louis Co
    8-Hr Ozone St Louis, MO-IL - Moderate
    PM-2.5 St. Louis, MO-IL - Nonattainment
 

State, County, Pollutant, * Part County NAA, NAA Area Name - Classification Standard

MONTANA
  Flathead Co
    PM-10 * Columbia Falls, MT - Moderate
    PM-10 * Flathead County; Whitefish and vicinity, MT - Moderate
    PM-10 * Kalispell, MT - Moderate
 
  Lake Co
    PM-10 * Polson, MT - Moderate
    PM-10 * Ronan, MT - Moderate
 
  Lewis And Clark Co
    Lead * East Helena Area (Lewis and Clark Co.), MT -
    SO2 * East Helena Area (Lewis and Clark Co.), MT - Primary, Secondary
 
  Lincoln Co
    PM-10 * Libby, MT - Moderate
    PM-2.5 * Libby, MT - Nonattainment
 
  Missoula Co
    PM-10 * Missoula, MT - Moderate
 
  Rosebud Co
    PM-10 * Lame Deer, MT - Moderate
 
  Sanders Co
    PM-10 * Sanders County (part);Thompson Falls and vicinity,MT - Moderate
 
  Silver Bow Co
    PM-10 * Butte, MT - Moderate
 
  Yellowstone Co
    SO2 * Laurel Area (Yellowstone County), MT - Primary
 

State, County, Pollutant, * Part County NAA, NAA Area Name - Classification Standard

NEVADA
  Clark Co
    Carbon Monoxide * Las Vegas, NV - Serious
    8-Hr Ozone * Las Vegas, NV - Subpart 1
    PM-10 * Clark Co, NV - Serious
 
  Washoe Co
    PM-10 * Washoe Co, NV - Serious
 

State, County, Pollutant, * Part County NAA, NAA Area Name - Classification Standard

NEW HAMPSHIRE
  Hillsborough Co
    8-Hr Ozone * Boston-Manchester-Portsmouth(SE),NH - Moderate
 
  Merrimack Co
    8-Hr Ozone * Boston-Manchester-Portsmouth(SE),NH - Moderate
 
  Rockingham Co
    8-Hr Ozone * Boston-Manchester-Portsmouth(SE),NH - Moderate
 
  Strafford Co
    8-Hr Ozone * Boston-Manchester-Portsmouth(SE),NH - Moderate
 

State, County, Pollutant, * Part County NAA, NAA Area Name - Classification Standard

NEW JERSEY
  Atlantic Co
    8-Hr Ozone Philadelphia-Wilmin-Atlantic Ci,PA-NJ-MD-DE - Moderate
 
  Bergen Co
    8-Hr Ozone New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
    PM-2.5 New York-N. New Jersey-Long Island,NY-NJ-CT - Nonattainment
 
  Burlington Co
    8-Hr Ozone Philadelphia-Wilmin-Atlantic Ci,PA-NJ-MD-DE - Moderate
    PM-2.5 Philadelphia-Wilmington, PA-NJ-DE - Nonattainment
 
  Camden Co
    8-Hr Ozone Philadelphia-Wilmin-Atlantic Ci,PA-NJ-MD-DE - Moderate
    PM-2.5 Philadelphia-Wilmington, PA-NJ-DE - Nonattainment
 
  Cape May Co
    8-Hr Ozone Philadelphia-Wilmin-Atlantic Ci,PA-NJ-MD-DE - Moderate
 
  Cumberland Co
    8-Hr Ozone Philadelphia-Wilmin-Atlantic Ci,PA-NJ-MD-DE - Moderate
 
  Essex Co
    8-Hr Ozone New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
    PM-2.5 New York-N. New Jersey-Long Island,NY-NJ-CT - Nonattainment
 
  Gloucester Co
    8-Hr Ozone Philadelphia-Wilmin-Atlantic Ci,PA-NJ-MD-DE - Moderate
    PM-2.5 Philadelphia-Wilmington, PA-NJ-DE - Nonattainment
 
  Hudson Co
    8-Hr Ozone New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
    PM-2.5 New York-N. New Jersey-Long Island,NY-NJ-CT - Nonattainment
 
  Hunterdon Co
    8-Hr Ozone New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
 
  Mercer Co
    8-Hr Ozone Philadelphia-Wilmin-Atlantic Ci,PA-NJ-MD-DE - Moderate
    PM-2.5 New York-N. New Jersey-Long Island,NY-NJ-CT - Nonattainment
 
  Middlesex Co
    8-Hr Ozone New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
    PM-2.5 New York-N. New Jersey-Long Island,NY-NJ-CT - Nonattainment
 
  Monmouth Co
    8-Hr Ozone New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
    PM-2.5 New York-N. New Jersey-Long Island,NY-NJ-CT - Nonattainment
 
  Morris Co
    8-Hr Ozone New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
    PM-2.5 New York-N. New Jersey-Long Island,NY-NJ-CT - Nonattainment
 
  Ocean Co
    8-Hr Ozone Philadelphia-Wilmin-Atlantic Ci,PA-NJ-MD-DE - Moderate
 
  Passaic Co
    8-Hr Ozone New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
    PM-2.5 New York-N. New Jersey-Long Island,NY-NJ-CT - Nonattainment
 
  Salem Co
    8-Hr Ozone Philadelphia-Wilmin-Atlantic Ci,PA-NJ-MD-DE - Moderate
 
  Somerset Co
    8-Hr Ozone New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
    PM-2.5 New York-N. New Jersey-Long Island,NY-NJ-CT - Nonattainment
 
  Sussex Co
    8-Hr Ozone New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
 
  Union Co
    8-Hr Ozone New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
    PM-2.5 New York-N. New Jersey-Long Island,NY-NJ-CT - Nonattainment
 
  Warren Co
    8-Hr Ozone New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
    SO2 * Warren Co, NJ - Primary, Secondary
 

State, County, Pollutant, * Part County NAA, NAA Area Name - Classification Standard

NEW MEXICO
  Dona Ana Co
    PM-10 * Anthony, NM - Moderate
 

State, County, Pollutant, * Part County NAA, NAA Area Name - Classification Standard

NEW YORK
  Albany Co
    8-Hr Ozone Albany-Schenectady-Troy, NY - Subpart 1
 
  Bronx Co
    8-Hr Ozone New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
    PM-2.5 New York-N. New Jersey-Long Island,NY-NJ-CT - Nonattainment
 
  Chautauqua Co
    8-Hr Ozone Jamestown, NY - Subpart 1
 
  Dutchess Co
    8-Hr Ozone Poughkeepsie, NY - Moderate
 
  Erie Co
    8-Hr Ozone Buffalo-Niagara Falls, NY - Subpart 1
 
  Essex Co
    8-Hr Ozone * Essex Co (Whiteface Mtn), NY - Subpart 1
 
  Genesee Co
    8-Hr Ozone Rochester, NY - Subpart 1
 
  Greene Co
    8-Hr Ozone Albany-Schenectady-Troy, NY - Subpart 1
 
  Jefferson Co
    8-Hr Ozone Jefferson Co, NY - Moderate
 
  Kings Co
    8-Hr Ozone New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
    PM-2.5 New York-N. New Jersey-Long Island,NY-NJ-CT - Nonattainment
 
  Livingston Co
    8-Hr Ozone Rochester, NY - Subpart 1
 
  Monroe Co
    8-Hr Ozone Rochester, NY - Subpart 1
 
  Montgomery Co
    8-Hr Ozone Albany-Schenectady-Troy, NY - Subpart 1
 
  Nassau Co
    8-Hr Ozone New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
    PM-2.5 New York-N. New Jersey-Long Island,NY-NJ-CT - Nonattainment
 
  New York Co
    8-Hr Ozone New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
    PM-10 New York Co, NY - Moderate
    PM-2.5 New York-N. New Jersey-Long Island,NY-NJ-CT - Nonattainment
 
  Niagara Co
    8-Hr Ozone Buffalo-Niagara Falls, NY - Subpart 1
 
  Ontario Co
    8-Hr Ozone Rochester, NY - Subpart 1
 
  Orange Co
    8-Hr Ozone Poughkeepsie, NY - Moderate
    PM-2.5 New York-N. New Jersey-Long Island,NY-NJ-CT - Nonattainment
 
  Orleans Co
    8-Hr Ozone Rochester, NY - Subpart 1
 
  Putnam Co
    8-Hr Ozone Poughkeepsie, NY - Moderate
 
  Queens Co
    8-Hr Ozone New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
    PM-2.5 New York-N. New Jersey-Long Island,NY-NJ-CT - Nonattainment
 
  Rensselaer Co
    8-Hr Ozone Albany-Schenectady-Troy, NY - Subpart 1
 
  Richmond Co
    8-Hr Ozone New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
    PM-2.5 New York-N. New Jersey-Long Island,NY-NJ-CT - Nonattainment
 
  Rockland Co
    8-Hr Ozone New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
    PM-2.5 New York-N. New Jersey-Long Island,NY-NJ-CT - Nonattainment
 
  Saratoga Co
    8-Hr Ozone Albany-Schenectady-Troy, NY - Subpart 1
 
  Schenectady Co
    8-Hr Ozone Albany-Schenectady-Troy, NY - Subpart 1
 
  Schoharie Co
    8-Hr Ozone Albany-Schenectady-Troy, NY - Subpart 1
 
  Suffolk Co
    8-Hr Ozone New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
    PM-2.5 New York-N. New Jersey-Long Island,NY-NJ-CT - Nonattainment
 
  Wayne Co
    8-Hr Ozone Rochester, NY - Subpart 1
 
  Westchester Co
    8-Hr Ozone New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
    PM-2.5 New York-N. New Jersey-Long Island,NY-NJ-CT - Nonattainment
 

State, County, Pollutant, * Part County NAA, NAA Area Name - Classification Standard

NORTH CAROLINA
  Cabarrus Co
    8-Hr Ozone Charlotte-Gastonia-Rock Hill, NC-SC - Moderate
 
  Catawba Co
    PM-2.5 Hickory, NC - Nonattainment
 
  Davidson Co
    PM-2.5 Greensboro-Winston Salem-High Point, NC - Nonattainment
 
  Gaston Co
    8-Hr Ozone Charlotte-Gastonia-Rock Hill, NC-SC - Moderate
 
  Guilford Co
    PM-2.5 Greensboro-Winston Salem-High Point, NC - Nonattainment
 
  Haywood Co
    8-Hr Ozone * Haywood and Swain Cos (Great Smoky NP), NC - Subpart 1
 
  Iredell Co
    8-Hr Ozone * Charlotte-Gastonia-Rock Hill, NC-SC - Moderate
 
  Lincoln Co
    8-Hr Ozone Charlotte-Gastonia-Rock Hill, NC-SC - Moderate
 
  Mecklenburg Co
    8-Hr Ozone Charlotte-Gastonia-Rock Hill, NC-SC - Moderate
 
  Rowan Co
    8-Hr Ozone Charlotte-Gastonia-Rock Hill, NC-SC - Moderate
 
  Swain Co
    8-Hr Ozone * Haywood and Swain Cos (Great Smoky NP), NC - Subpart 1
 
  Union Co
    8-Hr Ozone Charlotte-Gastonia-Rock Hill, NC-SC - Moderate
 

State, County, Pollutant, * Part County NAA, NAA Area Name - Classification Standard

OHIO
  Adams Co
    PM-2.5 * Huntington-Ashland, WV-KY-OH - Nonattainment
 
  Ashtabula Co
    8-Hr Ozone Cleveland-Akron-Lorain, OH - Moderate
    PM-2.5 * Cleveland-Akron-Lorain, OH - Nonattainment
 
  Belmont Co
    PM-2.5 Wheeling, WV-OH - Nonattainment
 
  Butler Co
    8-Hr Ozone Cincinnati-Hamilton, OH-KY-IN - Subpart 1
    PM-2.5 Cincinnati-Hamilton, OH-KY-IN - Nonattainment
 
  Clark Co
    PM-2.5 Dayton-Springfield, OH - Nonattainment
 
  Clermont Co
    8-Hr Ozone Cincinnati-Hamilton, OH-KY-IN - Subpart 1
    PM-2.5 Cincinnati-Hamilton, OH-KY-IN - Nonattainment
 
  Clinton Co
    8-Hr Ozone Cincinnati-Hamilton, OH-KY-IN - Subpart 1
 
  Coshocton Co
    PM-2.5 * Columbus, OH - Nonattainment
 
  Cuyahoga Co
    8-Hr Ozone Cleveland-Akron-Lorain, OH - Moderate
    PM-2.5 Cleveland-Akron-Lorain, OH - Nonattainment
 
  Delaware Co
    8-Hr Ozone Columbus, OH - Subpart 1
    PM-2.5 Columbus, OH - Nonattainment
 
  Fairfield Co
    8-Hr Ozone Columbus, OH - Subpart 1
    PM-2.5 Columbus, OH - Nonattainment
 
  Franklin Co
    8-Hr Ozone Columbus, OH - Subpart 1
    PM-2.5 Columbus, OH - Nonattainment
 
  Gallia Co
    PM-2.5 * Huntington-Ashland, WV-KY-OH - Nonattainment
 
  Geauga Co
    8-Hr Ozone Cleveland-Akron-Lorain, OH - Moderate
 
  Greene Co
    PM-2.5 Dayton-Springfield, OH - Nonattainment
 
  Hamilton Co
    8-Hr Ozone Cincinnati-Hamilton, OH-KY-IN - Subpart 1
    PM-2.5 Cincinnati-Hamilton, OH-KY-IN - Nonattainment
 
  Jefferson Co
    PM-2.5 Steubenville-Weirton, OH-WV - Nonattainment
 
  Knox Co
    8-Hr Ozone Columbus, OH - Subpart 1
 
  Lake Co
    8-Hr Ozone Cleveland-Akron-Lorain, OH - Moderate
    PM-2.5 Cleveland-Akron-Lorain, OH - Nonattainment
 
  Lawrence Co
    PM-2.5 Huntington-Ashland, WV-KY-OH - Nonattainment
 
  Licking Co
    8-Hr Ozone Columbus, OH - Subpart 1
    PM-2.5 Columbus, OH - Nonattainment
 
  Lorain Co
    8-Hr Ozone Cleveland-Akron-Lorain, OH - Moderate
    PM-2.5 Cleveland-Akron-Lorain, OH - Nonattainment
 
  Madison Co
    8-Hr Ozone Columbus, OH - Subpart 1
 
  Medina Co
    8-Hr Ozone Cleveland-Akron-Lorain, OH - Moderate
    PM-2.5 Cleveland-Akron-Lorain, OH - Nonattainment
 
  Montgomery Co
    PM-2.5 Dayton-Springfield, OH - Nonattainment
 
  Portage Co
    8-Hr Ozone Cleveland-Akron-Lorain, OH - Moderate
    PM-2.5 Cleveland-Akron-Lorain, OH - Nonattainment
 
  Scioto Co
    PM-2.5 Huntington-Ashland, WV-KY-OH - Nonattainment
 
  Stark Co
    PM-2.5 Canton-Massillon, OH - Nonattainment
 
  Summit Co
    8-Hr Ozone Cleveland-Akron-Lorain, OH - Moderate
    PM-2.5 Cleveland-Akron-Lorain, OH - Nonattainment
 
  Warren Co
    8-Hr Ozone Cincinnati-Hamilton, OH-KY-IN - Subpart 1
    PM-2.5 Cincinnati-Hamilton, OH-KY-IN - Nonattainment
 
  Washington Co
    PM-2.5 Parkersburg-Marietta, WV-OH - Nonattainment
 

State, County, Pollutant, * Part County NAA, NAA Area Name - Classification Standard

OREGON
  Lane Co
    PM-10 * Eugene-Springfield, OR - Moderate
    PM-10 * Lane Co, OR - Moderate
 
  Marion Co
    Carbon Monoxide * Salem, OR - Not Classified
 
  Polk Co
    Carbon Monoxide * Salem, OR - Not Classified
 

State, County, Pollutant, * Part County NAA, NAA Area Name - Classification Standard

PENNSYLVANIA
  Allegheny Co
    8-Hr Ozone Pittsburgh-Beaver Valley, PA - Subpart 1
    PM-2.5 * Liberty-Clairton, PA - Nonattainment
    PM-2.5 * Pittsburgh-Beaver Valley, PA - Nonattainment
 
  Armstrong Co
    8-Hr Ozone Pittsburgh-Beaver Valley, PA - Subpart 1
    PM-2.5 * Pittsburgh-Beaver Valley, PA - Nonattainment
    SO2 * Armstrong Co, PA - Primary
 
  Beaver Co
    8-Hr Ozone Pittsburgh-Beaver Valley, PA - Subpart 1
    PM-2.5 Pittsburgh-Beaver Valley, PA - Nonattainment
 
  Berks Co
    PM-2.5 Reading, PA - Nonattainment
 
  Bucks Co
    8-Hr Ozone Philadelphia-Wilmin-Atlantic Ci,PA-NJ-MD-DE - Moderate
    PM-2.5 Philadelphia-Wilmington, PA-NJ-DE - Nonattainment
 
  Butler Co
    8-Hr Ozone Pittsburgh-Beaver Valley, PA - Subpart 1
    PM-2.5 Pittsburgh-Beaver Valley, PA - Nonattainment
 
  Cambria Co
    PM-2.5 Johnstown, PA - Nonattainment
 
  Chester Co
    8-Hr Ozone Philadelphia-Wilmin-Atlantic Ci,PA-NJ-MD-DE - Moderate
    PM-2.5 Philadelphia-Wilmington, PA-NJ-DE - Nonattainment
 
  Clearfield Co
    8-Hr Ozone Clearfield and Indiana Cos, PA - Subpart 1
 
  Cumberland Co
    PM-2.5 Harrisburg-Lebanon-Carlisle, PA - Nonattainment
 
  Dauphin Co
    PM-2.5 Harrisburg-Lebanon-Carlisle, PA - Nonattainment
 
  Delaware Co
    8-Hr Ozone Philadelphia-Wilmin-Atlantic Ci,PA-NJ-MD-DE - Moderate
    PM-2.5 Philadelphia-Wilmington, PA-NJ-DE - Nonattainment
 
  Fayette Co
    8-Hr Ozone Pittsburgh-Beaver Valley, PA - Subpart 1
 
  Greene Co
    8-Hr Ozone Greene Co, PA - Subpart 1
    PM-2.5 * Pittsburgh-Beaver Valley, PA - Nonattainment
 
  Indiana Co
    8-Hr Ozone Clearfield and Indiana Cos, PA - Subpart 1
    PM-2.5 * Johnstown, PA - Nonattainment
 
  Lancaster Co
    PM-2.5 Lancaster, PA - Nonattainment
 
  Lawrence Co
    PM-2.5 * Pittsburgh-Beaver Valley, PA - Nonattainment
 
  Lebanon Co
    PM-2.5 Harrisburg-Lebanon-Carlisle, PA - Nonattainment
 
  Montgomery Co
    8-Hr Ozone Philadelphia-Wilmin-Atlantic Ci,PA-NJ-MD-DE - Moderate
    PM-2.5 Philadelphia-Wilmington, PA-NJ-DE - Nonattainment
 
  Philadelphia Co
    8-Hr Ozone Philadelphia-Wilmin-Atlantic Ci,PA-NJ-MD-DE - Moderate
    PM-2.5 Philadelphia-Wilmington, PA-NJ-DE - Nonattainment
 
  Washington Co
    8-Hr Ozone Pittsburgh-Beaver Valley, PA - Subpart 1
    PM-2.5 Pittsburgh-Beaver Valley, PA - Nonattainment
 
  Westmoreland Co
    8-Hr Ozone Pittsburgh-Beaver Valley, PA - Subpart 1
    PM-2.5 Pittsburgh-Beaver Valley, PA - Nonattainment
 
  York Co
    PM-2.5 York, PA - Nonattainment
 

State, County, Pollutant, * Part County NAA, NAA Area Name - Classification Standard

PUERTO RICO
  Guaynabo Co
    PM-10 * Mun. of Guaynabo, PR - Moderate
 

State, County, Pollutant, * Part County NAA, NAA Area Name - Classification Standard

RHODE ISLAND
  Bristol Co
    8-Hr Ozone Providence (All RI), RI - Moderate
 
  Kent Co
    8-Hr Ozone Providence (All RI), RI - Moderate
 
  Newport Co
    8-Hr Ozone Providence (All RI), RI - Moderate
 
  Providence Co
    8-Hr Ozone Providence (All RI), RI - Moderate
 
  Washington Co
    8-Hr Ozone Providence (All RI), RI - Moderate
 

State, County, Pollutant, * Part County NAA, NAA Area Name - Classification Standard

SOUTH CAROLINA
  York Co
    8-Hr Ozone * Charlotte-Gastonia-Rock Hill, NC-SC - Moderate
 

State, County, Pollutant, * Part County NAA, NAA Area Name - Classification Standard

TENNESSEE
  Anderson Co
    8-Hr Ozone Knoxville, TN - Subpart 1
    PM-2.5 Knoxville, TN - Nonattainment
 
  Blount Co
    8-Hr Ozone Knoxville, TN - Subpart 1
    PM-2.5 Knoxville, TN - Nonattainment
 
  Cocke Co
    8-Hr Ozone * Knoxville, TN - Subpart 1
 
  Hamilton Co
    PM-2.5 Chattanooga, AL-TN-GA - Nonattainment
 
  Jefferson Co
    8-Hr Ozone Knoxville, TN - Subpart 1
 
  Knox Co
    8-Hr Ozone Knoxville, TN - Subpart 1
    PM-2.5 Knoxville, TN - Nonattainment
 
  Loudon Co
    8-Hr Ozone Knoxville, TN - Subpart 1
    PM-2.5 Knoxville, TN - Nonattainment
 
  Roane Co
    PM-2.5 * Knoxville, TN - Nonattainment
 
  Sevier Co
    8-Hr Ozone Knoxville, TN - Subpart 1
 
  Shelby Co
    8-Hr Ozone Memphis, TN-AR - Moderate
 

State, County, Pollutant, * Part County NAA, NAA Area Name - Classification Standard

TEXAS
  Brazoria Co
    8-Hr Ozone Houston-Galveston-Brazoria, TX - Moderate
 
  Chambers Co
    8-Hr Ozone Houston-Galveston-Brazoria, TX - Moderate
 
  Collin Co
    8-Hr Ozone Dallas-Fort Worth, TX - Moderate
 
  Dallas Co
    8-Hr Ozone Dallas-Fort Worth, TX - Moderate
 
  Denton Co
    8-Hr Ozone Dallas-Fort Worth, TX - Moderate
 
  El Paso Co
    Carbon Monoxide * El Paso, TX - Moderate <= 12.7ppm
    PM-10 * El Paso Co, TX - Moderate
 
  Ellis Co
    8-Hr Ozone Dallas-Fort Worth, TX - Moderate
 
  Fort Bend Co
    8-Hr Ozone Houston-Galveston-Brazoria, TX - Moderate
 
  Galveston Co
    8-Hr Ozone Houston-Galveston-Brazoria, TX - Moderate
 
  Hardin Co
    8-Hr Ozone Beaumont-Port Arthur, TX - Moderate
 
  Harris Co
    8-Hr Ozone Houston-Galveston-Brazoria, TX - Moderate
 
  Jefferson Co
    8-Hr Ozone Beaumont-Port Arthur, TX - Moderate
 
  Johnson Co
    8-Hr Ozone Dallas-Fort Worth, TX - Moderate
 
  Kaufman Co
    8-Hr Ozone Dallas-Fort Worth, TX - Moderate
 
  Liberty Co
    8-Hr Ozone Houston-Galveston-Brazoria, TX - Moderate
 
  Montgomery Co
    8-Hr Ozone Houston-Galveston-Brazoria, TX - Moderate
 
  Orange Co
    8-Hr Ozone Beaumont-Port Arthur, TX - Moderate
 
  Parker Co
    8-Hr Ozone Dallas-Fort Worth, TX - Moderate
 
  Rockwall Co
    8-Hr Ozone Dallas-Fort Worth, TX - Moderate
 
  Tarrant Co
    8-Hr Ozone Dallas-Fort Worth, TX - Moderate
 
  Waller Co
    8-Hr Ozone Houston-Galveston-Brazoria, TX - Moderate
 

State, County, Pollutant, * Part County NAA, NAA Area Name - Classification Standard

UTAH
  Salt Lake Co
    PM-10 Salt Lake Co, UT - Moderate
    SO2 Salt Lake Co, UT - Primary, Secondary
 
  Tooele Co
    SO2 * Tooele Co, UT - Primary, Secondary
 
  Utah Co
    PM-10 Utah Co, UT - Moderate
 
  Weber Co
    PM-10 * Ogden, UT - Moderate
 

State, County, Pollutant, * Part County NAA, NAA Area Name - Classification Standard

VIRGINIA
  Alexandria
    8-Hr Ozone Washington, DC-MD-VA - Moderate
    PM-2.5 Washington, DC-MD-VA - Nonattainment
 
  Arlington Co
    8-Hr Ozone Washington, DC-MD-VA - Moderate
    PM-2.5 Washington, DC-MD-VA - Nonattainment
 
  Fairfax
    8-Hr Ozone Washington, DC-MD-VA - Moderate
    PM-2.5 Washington, DC-MD-VA - Nonattainment
 
  Fairfax Co
    8-Hr Ozone Washington, DC-MD-VA - Moderate
    PM-2.5 Washington, DC-MD-VA - Nonattainment
 
  Falls Church
    8-Hr Ozone Washington, DC-MD-VA - Moderate
    PM-2.5 Washington, DC-MD-VA - Nonattainment
 
  Loudoun Co
    8-Hr Ozone Washington, DC-MD-VA - Moderate
    PM-2.5 Washington, DC-MD-VA - Nonattainment
 
  Manassas
    8-Hr Ozone Washington, DC-MD-VA - Moderate
    PM-2.5 Washington, DC-MD-VA - Nonattainment
 
  Manassas Park
    8-Hr Ozone Washington, DC-MD-VA - Moderate
    PM-2.5 Washington, DC-MD-VA - Nonattainment
 
  Prince William Co
    8-Hr Ozone Washington, DC-MD-VA - Moderate
    PM-2.5 Washington, DC-MD-VA - Nonattainment
 

State, County, Pollutant, * Part County NAA, NAA Area Name - Classification Standard

WEST VIRGINIA
  Berkeley Co
    PM-2.5 Martinsburg, WV-Hagerstown, MD - Nonattainment
 
  Brooke Co
    PM-2.5 Steubenville-Weirton, OH-WV - Nonattainment
 
  Cabell Co
    PM-2.5 Huntington-Ashland, WV-KY-OH - Nonattainment
 
  Hancock Co
    PM-2.5 Steubenville-Weirton, OH-WV - Nonattainment
 
  Kanawha Co
    PM-2.5 Charleston, WV - Nonattainment
 
  Marshall Co
    PM-2.5 Wheeling, WV-OH - Nonattainment
 
  Mason Co
    PM-2.5 * Huntington-Ashland, WV-KY-OH - Nonattainment
 
  Ohio Co
    PM-2.5 Wheeling, WV-OH - Nonattainment
 
  Pleasants Co
    PM-2.5 * Parkersburg-Marietta, WV-OH - Nonattainment
 
  Putnam Co
    PM-2.5 Charleston, WV - Nonattainment
 
  Wayne Co
    PM-2.5 Huntington-Ashland, WV-KY-OH - Nonattainment
 
  Wood Co
    PM-2.5 Parkersburg-Marietta, WV-OH - Nonattainment
 

State, County, Pollutant, * Part County NAA, NAA Area Name - Classification Standard

WISCONSIN
  Door Co
    8-Hr Ozone Door Co, WI - Subpart 1
 
  Kenosha Co
    8-Hr Ozone Milwaukee-Racine, WI - Moderate
 
  Manitowoc Co
    8-Hr Ozone Manitowoc Co, WI - Subpart 1
 
  Milwaukee Co
    8-Hr Ozone Milwaukee-Racine, WI - Moderate
 
  Ozaukee Co
    8-Hr Ozone Milwaukee-Racine, WI - Moderate
 
  Racine Co
    8-Hr Ozone Milwaukee-Racine, WI - Moderate
 
  Sheboygan Co
    8-Hr Ozone Sheboygan, WI - Moderate
 
  Washington Co
    8-Hr Ozone Milwaukee-Racine, WI - Moderate
 
  Waukesha Co
    8-Hr Ozone Milwaukee-Racine, WI - Moderate
 

State, County, Pollutant, * Part County NAA, NAA Area Name - Classification Standard

WYOMING
  Sheridan Co
    PM-10 * Sheridan, WY - Moderate
 

* Only a portion of the county is designated nonattainment (NAA). Exception for a few ozone counties: Each county below is designated NAA for ozone. The entire county is NAA for ozone. In addition, each is split into two or more ozone NAA areas. Los Angeles and Sutter Counties, CA; Fairfield and Litchfield Counties, CT; Hillsborough and Rockingham Counties, NH; Orange County, NY. For detailed description for portion of the county that is NAA, see the individual pollutant tables. This is not an official list of nonattainment areas. See the Code of Federal Regulations (40 CFR Part 81) and pertinent Federal Register notices for legal lists and boundaries.


Local Navigation


Jump to main content.