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Current Nonattainment Counties for All Criteria Pollutants

As of February 13, 2017

"Part County NA" means only a portion of the county is designated nonattainment (NA). The 8-hour Ozone (1997) standard was revoked on April 6, 2015 and the 1-hour Ozone (1979) standard was revoked on June 15, 2005.



Listed by State, County, NAAQS      * Part County NA     NA Area Name (Classification, if applicable)


ALABAMA
Pike Co
Lead (2008) * Troy, AL
ALASKA
Fairbanks North Star Borough
PM-2.5 (2006) * Fairbanks, AK - (Moderate)
ARIZONA
Cochise Co
PM-10 (1987) * Paul Spur/Douglas (Cochise County), AZ - (Moderate)
Gila Co
Lead (2008) * Hayden, AZ
PM-10 (1987) * Hayden, AZ - (Moderate)
PM-10 (1987) * Miami, AZ - (Moderate)
Sulfur Dioxide (2010) * Hayden, AZ
Sulfur Dioxide (2010) * Miami, AZ
Maricopa Co
PM-10 (1987) * Phoenix, AZ - (Serious)
8-Hr Ozone (2008) * Phoenix-Mesa, AZ - (Moderate)
Pima Co
PM-10 (1987) * Ajo (Pima County), AZ - (Moderate)
PM-10 (1987) * Rillito, AZ - (Moderate)
Pinal Co
Lead (2008) * Hayden, AZ
PM-10 (1987) * Hayden, AZ - (Moderate)
PM-10 (1987) * Phoenix, AZ - (Serious)
PM-10 (1987) * West Pinal, AZ - (Moderate)
PM-2.5 (2006) * West Central Pinal, AZ - (Moderate)
Sulfur Dioxide (1971) * Hayden (Pinal County), AZ
Sulfur Dioxide (2010) * Hayden, AZ
8-Hr Ozone (2008) * Phoenix-Mesa, AZ - (Moderate)
Santa Cruz Co
PM-10 (1987) * Nogales, AZ - (Moderate)
PM-2.5 (2006) * Nogales, AZ - (Moderate)
Yuma Co
PM-10 (1987) * Yuma, AZ - (Moderate)
CALIFORNIA
Alameda Co
PM-2.5 (2006) San Francisco Bay Area, CA - (Moderate)
8-Hr Ozone (2008) San Francisco Bay Area, CA - (Marginal)
Butte Co
PM-2.5 (2006) * Chico, CA - (Moderate)
8-Hr Ozone (2008) Chico (Butte County), CA - (Marginal)
Calaveras Co
8-Hr Ozone (2008) Calaveras County, CA - (Marginal)
Contra Costa Co
PM-2.5 (2006) San Francisco Bay Area, CA - (Moderate)
8-Hr Ozone (2008) San Francisco Bay Area, CA - (Marginal)
El Dorado Co
PM-2.5 (2006) * Sacramento, CA - (Moderate)
8-Hr Ozone (2008) * Sacramento Metro, CA - (Severe 15)
Fresno Co
PM-2.5 (1997) San Joaquin Valley, CA - (Serious)
PM-2.5 (2006) San Joaquin Valley, CA - (Serious)
PM-2.5 (2012) San Joaquin Valley, CA - (Moderate)
8-Hr Ozone (2008) San Joaquin Valley, CA - (Extreme)
Imperial Co
PM-10 (1987) * Imperial Valley, CA - (Serious)
PM-2.5 (2006) * Imperial Co, CA - (Moderate)
PM-2.5 (2012) * Imperial County, CA - (Moderate)
8-Hr Ozone (2008) Imperial County, CA - (Moderate)
Inyo Co
PM-10 (1987) * Owens Valley, CA - (Serious)
Kern Co
PM-10 (1987) * East Kern Co, CA - (Serious)
PM-2.5 (1997) * San Joaquin Valley, CA - (Serious)
PM-2.5 (2006) * San Joaquin Valley, CA - (Serious)
PM-2.5 (2012) * San Joaquin Valley, CA - (Moderate)
8-Hr Ozone (2008) * Kern Co (Eastern Kern), CA - (Moderate)
8-Hr Ozone (2008) * San Joaquin Valley, CA - (Extreme)
Kings Co
PM-2.5 (1997) San Joaquin Valley, CA - (Serious)
PM-2.5 (2006) San Joaquin Valley, CA - (Serious)
PM-2.5 (2012) San Joaquin Valley, CA - (Moderate)
8-Hr Ozone (2008) San Joaquin Valley, CA - (Extreme)
Los Angeles Co
Lead (2008) * Los Angeles County-South Coast Air Basin, CA
PM-2.5 (1997) * Los Angeles-South Coast Air Basin, CA - (Moderate)
PM-2.5 (2006) * Los Angeles-South Coast Air Basin, CA - (Serious)
PM-2.5 (2012) * Los Angeles-South Coast Air Basin, CA - (Moderate)
8-Hr Ozone (2008) * Los Angeles-San Bernardino Counties (West Mojave Desert), CA - (Severe 15)
8-Hr Ozone (2008) * Los Angeles-South Coast Air Basin, CA - (Extreme)
Madera Co
PM-2.5 (1997) San Joaquin Valley, CA - (Serious)
PM-2.5 (2006) San Joaquin Valley, CA - (Serious)
PM-2.5 (2012) San Joaquin Valley, CA - (Moderate)
8-Hr Ozone (2008) San Joaquin Valley, CA - (Extreme)
Marin Co
PM-2.5 (2006) San Francisco Bay Area, CA - (Moderate)
8-Hr Ozone (2008) San Francisco Bay Area, CA - (Marginal)
Mariposa Co
8-Hr Ozone (2008) Mariposa County, CA - (Moderate)
Merced Co
PM-2.5 (1997) San Joaquin Valley, CA - (Serious)
PM-2.5 (2006) San Joaquin Valley, CA - (Serious)
PM-2.5 (2012) San Joaquin Valley, CA - (Moderate)
8-Hr Ozone (2008) San Joaquin Valley, CA - (Extreme)
Mono Co
PM-10 (1987) * Mono Basin, CA - (Moderate)
Napa Co
PM-2.5 (2006) San Francisco Bay Area, CA - (Moderate)
8-Hr Ozone (2008) San Francisco Bay Area, CA - (Marginal)
Nevada Co
8-Hr Ozone (2008) * Nevada Co. (Western part), CA - (Moderate)
Orange Co
PM-2.5 (1997) Los Angeles-South Coast Air Basin, CA - (Moderate)
PM-2.5 (2006) Los Angeles-South Coast Air Basin, CA - (Serious)
PM-2.5 (2012) Los Angeles-South Coast Air Basin, CA - (Moderate)
8-Hr Ozone (2008) Los Angeles-South Coast Air Basin, CA - (Extreme)
Placer Co
PM-2.5 (2006) * Sacramento, CA - (Moderate)
8-Hr Ozone (2008) * Sacramento Metro, CA - (Severe 15)
Plumas Co
PM-2.5 (2012) * Plumas County, CA - (Moderate)
Riverside Co
PM-10 (1987) * Coachella Valley, CA - (Serious)
PM-2.5 (1997) * Los Angeles-South Coast Air Basin, CA - (Moderate)
PM-2.5 (2006) * Los Angeles-South Coast Air Basin, CA - (Serious)
PM-2.5 (2012) * Los Angeles-South Coast Air Basin, CA - (Moderate)
8-Hr Ozone (2008) * Los Angeles-South Coast Air Basin, CA - (Extreme)
8-Hr Ozone (2008) * Morongo Band of Mission Indians - (Serious)
8-Hr Ozone (2008) * Pechanga Band of Luiseno Mission Indians of the Pechanga Reservation - (Moderate)
8-Hr Ozone (2008) * Riverside Co, (Coachella Valley), CA - (Severe 15)
Sacramento Co
PM-2.5 (2006) Sacramento, CA - (Moderate)
8-Hr Ozone (2008) Sacramento Metro, CA - (Severe 15)
San Bernardino Co
PM-10 (1987) * San Bernardino Co, CA - (Moderate)
PM-10 (1987) * Trona, CA - (Moderate)
PM-2.5 (1997) * Los Angeles-South Coast Air Basin, CA - (Moderate)
PM-2.5 (2006) * Los Angeles-South Coast Air Basin, CA - (Serious)
PM-2.5 (2012) * Los Angeles-South Coast Air Basin, CA - (Moderate)
8-Hr Ozone (2008) * Los Angeles-San Bernardino Counties (West Mojave Desert), CA - (Severe 15)
8-Hr Ozone (2008) * Los Angeles-South Coast Air Basin, CA - (Extreme)
San Diego Co
8-Hr Ozone (2008) * Pechanga Band of Luiseno Mission Indians of the Pechanga Reservation - (Moderate)
8-Hr Ozone (2008) * San Diego County, CA - (Moderate)
San Francisco Co
PM-2.5 (2006) San Francisco Bay Area, CA - (Moderate)
8-Hr Ozone (2008) San Francisco Bay Area, CA - (Marginal)
San Joaquin Co
PM-2.5 (1997) San Joaquin Valley, CA - (Serious)
PM-2.5 (2006) San Joaquin Valley, CA - (Serious)
PM-2.5 (2012) San Joaquin Valley, CA - (Moderate)
8-Hr Ozone (2008) San Joaquin Valley, CA - (Extreme)
San Luis Obispo Co
8-Hr Ozone (2008) * San Luis Obispo (Eastern San Luis Obispo), CA - (Marginal)
San Mateo Co
PM-2.5 (2006) San Francisco Bay Area, CA - (Moderate)
8-Hr Ozone (2008) San Francisco Bay Area, CA - (Marginal)
Santa Clara Co
PM-2.5 (2006) San Francisco Bay Area, CA - (Moderate)
8-Hr Ozone (2008) San Francisco Bay Area, CA - (Marginal)
Solano Co
PM-2.5 (2006) * Sacramento, CA - (Moderate)
PM-2.5 (2006) * San Francisco Bay Area, CA - (Moderate)
8-Hr Ozone (2008) * Sacramento Metro, CA - (Severe 15)
8-Hr Ozone (2008) * San Francisco Bay Area, CA - (Marginal)
Sonoma Co
PM-2.5 (2006) * San Francisco Bay Area, CA - (Moderate)
8-Hr Ozone (2008) * San Francisco Bay Area, CA - (Marginal)
Stanislaus Co
PM-2.5 (1997) San Joaquin Valley, CA - (Serious)
PM-2.5 (2006) San Joaquin Valley, CA - (Serious)
PM-2.5 (2012) San Joaquin Valley, CA - (Moderate)
8-Hr Ozone (2008) San Joaquin Valley, CA - (Extreme)
Sutter Co
8-Hr Ozone (2008) * Sacramento Metro, CA - (Severe 15)
Tehama Co
8-Hr Ozone (2008) * Tuscan Buttes, CA - (Marginal)
Tulare Co
PM-2.5 (1997) San Joaquin Valley, CA - (Serious)
PM-2.5 (2006) San Joaquin Valley, CA - (Serious)
PM-2.5 (2012) San Joaquin Valley, CA - (Moderate)
8-Hr Ozone (2008) San Joaquin Valley, CA - (Extreme)
Ventura Co
8-Hr Ozone (2008) * Ventura County, CA - (Serious)
Yolo Co
PM-2.5 (2006) * Sacramento, CA - (Moderate)
8-Hr Ozone (2008) Sacramento Metro, CA - (Severe 15)
COLORADO
Adams Co
8-Hr Ozone (2008) Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Moderate)
Arapahoe Co
8-Hr Ozone (2008) Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Moderate)
Boulder Co
8-Hr Ozone (2008) Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Moderate)
Broomfield Co
8-Hr Ozone (2008) Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Moderate)
Denver Co
8-Hr Ozone (2008) Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Moderate)
Douglas Co
8-Hr Ozone (2008) Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Moderate)
Jefferson Co
8-Hr Ozone (2008) Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Moderate)
Larimer Co
8-Hr Ozone (2008) * Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Moderate)
Weld Co
8-Hr Ozone (2008) * Denver-Boulder-Greeley-Ft. Collins-Loveland, CO - (Moderate)
CONNECTICUT
Fairfield Co
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
Hartford Co
8-Hr Ozone (2008) Greater Connecticut, CT - (Moderate)
Litchfield Co
8-Hr Ozone (2008) Greater Connecticut, CT - (Moderate)
Middlesex Co
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
New Haven Co
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
New London Co
8-Hr Ozone (2008) Greater Connecticut, CT - (Moderate)
Tolland Co
8-Hr Ozone (2008) Greater Connecticut, CT - (Moderate)
Windham Co
8-Hr Ozone (2008) Greater Connecticut, CT - (Moderate)
DELAWARE
New Castle Co
8-Hr Ozone (2008) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Marginal)
Sussex Co
8-Hr Ozone (2008) Seaford, DE - (Marginal)
DISTRICT OF COLUMBIA
Entire District
8-Hr Ozone (2008) Washington, DC-MD-VA - (Marginal)
FLORIDA
Hillsborough Co
Lead (2008) * Tampa, FL
Sulfur Dioxide (2010) * Hillsborough County, FL
Nassau Co
Sulfur Dioxide (2010) * Nassau County, FL
GEORGIA
Bartow Co
8-Hr Ozone (2008) Atlanta, GA - (Moderate)
Cherokee Co
8-Hr Ozone (2008) Atlanta, GA - (Moderate)
Clayton Co
8-Hr Ozone (2008) Atlanta, GA - (Moderate)
Cobb Co
8-Hr Ozone (2008) Atlanta, GA - (Moderate)
Coweta Co
8-Hr Ozone (2008) Atlanta, GA - (Moderate)
De Kalb Co
8-Hr Ozone (2008) Atlanta, GA - (Moderate)
Douglas Co
8-Hr Ozone (2008) Atlanta, GA - (Moderate)
Fayette Co
8-Hr Ozone (2008) Atlanta, GA - (Moderate)
Forsyth Co
8-Hr Ozone (2008) Atlanta, GA - (Moderate)
Fulton Co
8-Hr Ozone (2008) Atlanta, GA - (Moderate)
Gwinnett Co
8-Hr Ozone (2008) Atlanta, GA - (Moderate)
Henry Co
8-Hr Ozone (2008) Atlanta, GA - (Moderate)
Newton Co
8-Hr Ozone (2008) Atlanta, GA - (Moderate)
Paulding Co
8-Hr Ozone (2008) Atlanta, GA - (Moderate)
Rockdale Co
8-Hr Ozone (2008) Atlanta, GA - (Moderate)
GUAM
Piti
Sulfur Dioxide (1971) * Piti, GU
Tanguisson
Sulfur Dioxide (1971) * Tanguisson, GU
IDAHO
Bannock Co
PM-10 (1987) * Fort Hall Indian Reservation - (Moderate)
Franklin Co
PM-2.5 (2006) * Logan, UT-ID - (Moderate)
Power Co
PM-10 (1987) * Fort Hall Indian Reservation - (Moderate)
Shoshone Co
PM-10 (1987) * Pinehurst, ID - (Moderate)
PM-10 (1987) * Shoshone Co, ID - (Moderate)
PM-2.5 (2012) * West Silver Valley, ID - (Moderate)
ILLINOIS
Cook Co
Lead (2008) * Chicago, IL
Sulfur Dioxide (2010) * Lemont, IL
8-Hr Ozone (2008) Chicago-Naperville, IL-IN-WI - (Moderate)
Du Page Co
8-Hr Ozone (2008) Chicago-Naperville, IL-IN-WI - (Moderate)
Grundy Co
8-Hr Ozone (2008) * Chicago-Naperville, IL-IN-WI - (Moderate)
Kane Co
8-Hr Ozone (2008) Chicago-Naperville, IL-IN-WI - (Moderate)
Kendall Co
8-Hr Ozone (2008) * Chicago-Naperville, IL-IN-WI - (Moderate)
Lake Co
8-Hr Ozone (2008) Chicago-Naperville, IL-IN-WI - (Moderate)
Madison Co
Lead (2008) * Granite City, IL
PM-2.5 (1997) St. Louis, MO-IL - (Moderate)
Sulfur Dioxide (2010) * Alton Township, IL
8-Hr Ozone (2008) St. Louis-St. Charles-Farmington, MO-IL - (Marginal)
Mc Henry Co
8-Hr Ozone (2008) Chicago-Naperville, IL-IN-WI - (Moderate)
Monroe Co
PM-2.5 (1997) St. Louis, MO-IL - (Moderate)
8-Hr Ozone (2008) St. Louis-St. Charles-Farmington, MO-IL - (Marginal)
Peoria Co
Sulfur Dioxide (2010) * Pekin, IL
Randolph Co
PM-2.5 (1997) * St. Louis, MO-IL - (Moderate)
St Clair Co
PM-2.5 (1997) St. Louis, MO-IL - (Moderate)
8-Hr Ozone (2008) St. Louis-St. Charles-Farmington, MO-IL - (Marginal)
Tazewell Co
Sulfur Dioxide (2010) * Pekin, IL
Will Co
Sulfur Dioxide (2010) * Lemont, IL
8-Hr Ozone (2008) Chicago-Naperville, IL-IN-WI - (Moderate)
Williamson Co
Sulfur Dioxide (2010) Williamson County, IL
INDIANA
Daviess Co
Sulfur Dioxide (2010) * Southwest Indiana, IN
Dearborn Co
PM-2.5 (1997) * Cincinnati-Hamilton, OH-KY-IN (IN portion) - (Moderate)
8-Hr Ozone (2008) * Cincinnati, OH-KY-IN - (Marginal)
Delaware Co
Lead (2008) * Muncie, IN
Lake Co
8-Hr Ozone (2008) Chicago-Naperville, IL-IN-WI - (Moderate)
Marion Co
Sulfur Dioxide (2010) * Indianapolis, IN
Morgan Co
Sulfur Dioxide (2010) * Morgan County, IN
Pike Co
Sulfur Dioxide (2010) * Southwest Indiana, IN
Porter Co
8-Hr Ozone (2008) Chicago-Naperville, IL-IN-WI - (Moderate)
Vigo Co
Sulfur Dioxide (2010) * Terre Haute, IN
IOWA
Muscatine Co
Sulfur Dioxide (2010) * Muscatine, IA
Pottawattamie Co
Lead (2008) * Pottawattamie County, IA
KANSAS
Saline Co
Lead (2008) * Saline County, KS
KENTUCKY
Boone Co
8-Hr Ozone (2008) * Cincinnati, OH-KY-IN - (Marginal)
Bullitt Co
PM-2.5 (1997) Louisville, KY-IN (KY portion) - (Moderate)
Campbell Co
Sulfur Dioxide (2010) * Campbell-Clermont Counties, KY-OH
8-Hr Ozone (2008) * Cincinnati, OH-KY-IN - (Marginal)
Jefferson Co
PM-2.5 (1997) Louisville, KY-IN (KY portion) - (Moderate)
Sulfur Dioxide (2010) * Jefferson County, KY
Kenton Co
8-Hr Ozone (2008) * Cincinnati, OH-KY-IN - (Marginal)
LOUISIANA
Ascension Par
8-Hr Ozone (2008) Baton Rouge, LA - (Marginal)
East Baton Rouge Par
8-Hr Ozone (2008) Baton Rouge, LA - (Marginal)
Iberville Par
8-Hr Ozone (2008) Baton Rouge, LA - (Marginal)
Livingston Par
8-Hr Ozone (2008) Baton Rouge, LA - (Marginal)
St Bernard Par
Sulfur Dioxide (2010) St. Bernard Parish, LA
West Baton Rouge Par
8-Hr Ozone (2008) Baton Rouge, LA - (Marginal)
MARYLAND
Anne Arundel Co
Sulfur Dioxide (2010) * Anne Arundel County and Baltimore County, MD
8-Hr Ozone (2008) Baltimore, MD - (Moderate)
Baltimore (City)
8-Hr Ozone (2008) Baltimore, MD - (Moderate)
Baltimore Co
Sulfur Dioxide (2010) * Anne Arundel County and Baltimore County, MD
8-Hr Ozone (2008) Baltimore, MD - (Moderate)
Calvert Co
8-Hr Ozone (2008) Washington, DC-MD-VA - (Marginal)
Carroll Co
8-Hr Ozone (2008) Baltimore, MD - (Moderate)
Cecil Co
8-Hr Ozone (2008) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Marginal)
Charles Co
8-Hr Ozone (2008) Washington, DC-MD-VA - (Marginal)
Frederick Co
8-Hr Ozone (2008) Washington, DC-MD-VA - (Marginal)
Harford Co
8-Hr Ozone (2008) Baltimore, MD - (Moderate)
Howard Co
8-Hr Ozone (2008) Baltimore, MD - (Moderate)
Montgomery Co
8-Hr Ozone (2008) Washington, DC-MD-VA - (Marginal)
Prince George's Co
8-Hr Ozone (2008) Washington, DC-MD-VA - (Marginal)
MASSACHUSETTS
Dukes Co
8-Hr Ozone (2008) Dukes County, MA - (Marginal)
MICHIGAN
Ionia Co
Lead (2008) * Belding, MI
St Clair Co
Sulfur Dioxide (2010) * St. Clair, MI
Wayne Co
Sulfur Dioxide (2010) * Detroit, MI
MINNESOTA
Dakota Co
Lead (2008) * Eagan, MN
MISSOURI
Dent Co
Lead (2008) * Iron, Dent, and Reynolds Counties, MO
Franklin Co
PM-2.5 (1997) St. Louis, MO-IL - (Moderate)
8-Hr Ozone (2008) St. Louis-St. Charles-Farmington, MO-IL - (Marginal)
Iron Co
Lead (2008) * Iron, Dent, and Reynolds Counties, MO
Jackson Co
Sulfur Dioxide (2010) * Jackson County, MO
Jefferson Co
Lead (1978) * Jefferson County (part); Herculaneum, MO
Lead (2008) * Jefferson County, MO
PM-2.5 (1997) St. Louis, MO-IL - (Moderate)
Sulfur Dioxide (2010) * Jefferson County, MO
8-Hr Ozone (2008) St. Louis-St. Charles-Farmington, MO-IL - (Marginal)
Reynolds Co
Lead (2008) * Iron, Dent, and Reynolds Counties, MO
St Charles Co
PM-2.5 (1997) St. Louis, MO-IL - (Moderate)
8-Hr Ozone (2008) St. Louis-St. Charles-Farmington, MO-IL - (Marginal)
St Louis
PM-2.5 (1997) St. Louis, MO-IL - (Moderate)
8-Hr Ozone (2008) St. Louis-St. Charles-Farmington, MO-IL - (Marginal)
St Louis Co
PM-2.5 (1997) St. Louis, MO-IL - (Moderate)
8-Hr Ozone (2008) St. Louis-St. Charles-Farmington, MO-IL - (Marginal)
MONTANA
Flathead Co
PM-10 (1987) * Columbia Falls, MT - (Moderate)
PM-10 (1987) * Flathead County; Whitefish and vicinity, MT - (Moderate)
PM-10 (1987) * Kalispell, MT - (Moderate)
Lake Co
PM-10 (1987) * Polson, MT - (Moderate)
PM-10 (1987) * Ronan, MT - (Moderate)
Lewis And Clark Co
Lead (1978) * East Helena Area (Lewis and Clark Co.), MT
Sulfur Dioxide (1971) * East Helena Area (Lewis and Clark Co.), MT
Lincoln Co
PM-10 (1987) * Libby, MT - (Moderate)
PM-2.5 (1997) * Libby, MT - (Moderate)
Missoula Co
PM-10 (1987) * Missoula, MT - (Moderate)
Rosebud Co
PM-10 (1987) * Lame Deer, MT - (Moderate)
Sanders Co
PM-10 (1987) * Sanders County (part); Thompson Falls and vicinity, MT - (Moderate)
Silver Bow Co
PM-10 (1987) * Butte, MT - (Moderate)
Yellowstone Co
Sulfur Dioxide (1971) * Laurel Area (Yellowstone County), MT
NEW HAMPSHIRE
Hillsborough Co
Sulfur Dioxide (2010) * Central New Hampshire, NH
Merrimack Co
Sulfur Dioxide (2010) * Central New Hampshire, NH
Rockingham Co
Sulfur Dioxide (2010) * Central New Hampshire, NH
NEW JERSEY
Atlantic Co
8-Hr Ozone (2008) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Marginal)
Bergen Co
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
Burlington Co
8-Hr Ozone (2008) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Marginal)
Camden Co
8-Hr Ozone (2008) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Marginal)
Cape May Co
8-Hr Ozone (2008) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Marginal)
Cumberland Co
8-Hr Ozone (2008) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Marginal)
Essex Co
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
Gloucester Co
8-Hr Ozone (2008) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Marginal)
Hudson Co
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
Hunterdon Co
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
Mercer Co
8-Hr Ozone (2008) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Marginal)
Middlesex Co
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
Monmouth Co
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
Morris Co
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
Ocean Co
8-Hr Ozone (2008) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Marginal)
Passaic Co
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
Salem Co
8-Hr Ozone (2008) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Marginal)
Somerset Co
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
Sussex Co
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
Union Co
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
Warren Co
Sulfur Dioxide (1971) * Warren Co, NJ
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
NEW MEXICO
Dona Ana Co
PM-10 (1987) * Anthony, NM - (Moderate)
NEW YORK
Bronx Co
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
Chautauqua Co
8-Hr Ozone (2008) Jamestown, NY - (Marginal)
Kings Co
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
Nassau Co
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
New York Co
PM-10 (1987) New York Co, NY - (Moderate)
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
Queens Co
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
Richmond Co
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
Rockland Co
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
Suffolk Co
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
Westchester Co
8-Hr Ozone (2008) New York-N. New Jersey-Long Island, NY-NJ-CT - (Moderate)
OHIO
Butler Co
PM-2.5 (1997) Cincinnati-Hamilton, OH-KY-IN (OH portion) - (Moderate)
Clermont Co
PM-2.5 (1997) Cincinnati-Hamilton, OH-KY-IN (OH portion) - (Moderate)
Cuyahoga Co
Lead (2008) * Cleveland, OH
PM-2.5 (2012) Cleveland, OH - (Moderate)
Fulton Co
Lead (2008) * Delta, OH
Hamilton Co
PM-2.5 (1997) Cincinnati-Hamilton, OH-KY-IN (OH portion) - (Moderate)
Jefferson Co
Sulfur Dioxide (2010) * Steubenville, OH-WV
Lake Co
Sulfur Dioxide (2010) Lake County, OH
Lorain Co
PM-2.5 (2012) Cleveland, OH - (Moderate)
Morgan Co
Sulfur Dioxide (2010) * Muskingum River, OH
Warren Co
PM-2.5 (1997) Cincinnati-Hamilton, OH-KY-IN (OH portion) - (Moderate)
Washington Co
Sulfur Dioxide (2010) * Muskingum River, OH
OREGON
Klamath Co
PM-2.5 (2006) * Klamath Falls, OR - (Moderate)
Lane Co
PM-10 (1987) * Lane Co, OR - (Moderate)
PM-2.5 (2006) * Oakridge, OR - (Moderate)
PENNSYLVANIA
Allegheny Co
PM-2.5 (1997) * Liberty-Clairton, PA - (Moderate)
PM-2.5 (2006) * Liberty-Clairton, PA - (Moderate)
PM-2.5 (2012) Allegheny County, PA - (Moderate)
Sulfur Dioxide (2010) * Allegheny, PA
8-Hr Ozone (2008) Pittsburgh-Beaver Valley, PA - (Marginal)
Armstrong Co
Sulfur Dioxide (1971) * Armstrong Co, PA
Sulfur Dioxide (2010) * Indiana, PA
8-Hr Ozone (2008) Pittsburgh-Beaver Valley, PA - (Marginal)
Beaver Co
Lead (2008) * Lower Beaver Valley, PA
Sulfur Dioxide (2010) * Beaver, PA
8-Hr Ozone (2008) Pittsburgh-Beaver Valley, PA - (Marginal)
Berks Co
Lead (2008) * Lyons, PA
Lead (2008) * North Reading, PA
8-Hr Ozone (2008) Reading, PA - (Marginal)
Bucks Co
8-Hr Ozone (2008) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Marginal)
Butler Co
8-Hr Ozone (2008) Pittsburgh-Beaver Valley, PA - (Marginal)
Carbon Co
8-Hr Ozone (2008) Allentown-Bethlehem-Easton, PA - (Marginal)
Chester Co
8-Hr Ozone (2008) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Marginal)
Delaware Co
PM-2.5 (2012) Delaware County, PA - (Moderate)
8-Hr Ozone (2008) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Marginal)
Fayette Co
8-Hr Ozone (2008) Pittsburgh-Beaver Valley, PA - (Marginal)
Indiana Co
Sulfur Dioxide (2010) Indiana, PA
Lancaster Co
8-Hr Ozone (2008) Lancaster, PA - (Marginal)
Lebanon Co
PM-2.5 (2012) Lebanon County, PA - (Moderate)
Lehigh Co
8-Hr Ozone (2008) Allentown-Bethlehem-Easton, PA - (Marginal)
Montgomery Co
8-Hr Ozone (2008) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Marginal)
Northampton Co
8-Hr Ozone (2008) Allentown-Bethlehem-Easton, PA - (Marginal)
Philadelphia Co
8-Hr Ozone (2008) Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE - (Marginal)
Warren Co
Sulfur Dioxide (2010) * Warren, PA
Washington Co
8-Hr Ozone (2008) Pittsburgh-Beaver Valley, PA - (Marginal)
Westmoreland Co
8-Hr Ozone (2008) Pittsburgh-Beaver Valley, PA - (Marginal)
PUERTO RICO
Arecibo Municipio
Lead (2008) * Arecibo, PR
TENNESSEE
Anderson Co
PM-2.5 (1997) Knoxville, TN - (Moderate)
PM-2.5 (2006) Knoxville-Sevierville-La Follette, TN - (Moderate)
Blount Co
PM-2.5 (1997) Knoxville, TN - (Moderate)
PM-2.5 (2006) Knoxville-Sevierville-La Follette, TN - (Moderate)
Knox Co
PM-2.5 (1997) Knoxville, TN - (Moderate)
PM-2.5 (2006) Knoxville-Sevierville-La Follette, TN - (Moderate)
Loudon Co
PM-2.5 (1997) Knoxville, TN - (Moderate)
PM-2.5 (2006) Knoxville-Sevierville-La Follette, TN - (Moderate)
Roane Co
PM-2.5 (1997) * Knoxville, TN - (Moderate)
PM-2.5 (2006) * Knoxville-Sevierville-La Follette, TN - (Moderate)
Sullivan Co
Sulfur Dioxide (2010) * Sullivan County, TN
TEXAS
Anderson Co
Sulfur Dioxide (2010) * Freestone and Anderson Counties, TX
Brazoria Co
8-Hr Ozone (2008) Houston-Galveston-Brazoria, TX - (Moderate)
Chambers Co
8-Hr Ozone (2008) Houston-Galveston-Brazoria, TX - (Moderate)
Collin Co
Lead (2008) * Frisco, TX
8-Hr Ozone (2008) Dallas-Fort Worth, TX - (Moderate)
Dallas Co
8-Hr Ozone (2008) Dallas-Fort Worth, TX - (Moderate)
Denton Co
8-Hr Ozone (2008) Dallas-Fort Worth, TX - (Moderate)
El Paso Co
PM-10 (1987) * El Paso Co, TX - (Moderate)
Ellis Co
8-Hr Ozone (2008) Dallas-Fort Worth, TX - (Moderate)
Fort Bend Co
8-Hr Ozone (2008) Houston-Galveston-Brazoria, TX - (Moderate)
Freestone Co
Sulfur Dioxide (2010) * Freestone and Anderson Counties, TX
Galveston Co
8-Hr Ozone (2008) Houston-Galveston-Brazoria, TX - (Moderate)
Harris Co
8-Hr Ozone (2008) Houston-Galveston-Brazoria, TX - (Moderate)
Johnson Co
8-Hr Ozone (2008) Dallas-Fort Worth, TX - (Moderate)
Kaufman Co
8-Hr Ozone (2008) Dallas-Fort Worth, TX - (Moderate)
Liberty Co
8-Hr Ozone (2008) Houston-Galveston-Brazoria, TX - (Moderate)
Montgomery Co
8-Hr Ozone (2008) Houston-Galveston-Brazoria, TX - (Moderate)
Panola Co
Sulfur Dioxide (2010) * Rusk and Panola Counties, TX
Parker Co
8-Hr Ozone (2008) Dallas-Fort Worth, TX - (Moderate)
Rockwall Co
8-Hr Ozone (2008) Dallas-Fort Worth, TX - (Moderate)
Rusk Co
Sulfur Dioxide (2010) * Rusk and Panola Counties, TX
Tarrant Co
8-Hr Ozone (2008) Dallas-Fort Worth, TX - (Moderate)
Titus Co
Sulfur Dioxide (2010) * Titus County, TX
Waller Co
8-Hr Ozone (2008) Houston-Galveston-Brazoria, TX - (Moderate)
Wise Co
8-Hr Ozone (2008) Dallas-Fort Worth, TX - (Moderate)
UTAH
Box Elder Co
PM-2.5 (2006) * Salt Lake City, UT - (Moderate)
Cache Co
PM-2.5 (2006) * Logan, UT-ID - (Moderate)
Davis Co
PM-2.5 (2006) Salt Lake City, UT - (Moderate)
Salt Lake Co
PM-10 (1987) Salt Lake Co, UT - (Moderate)
PM-2.5 (2006) Salt Lake City, UT - (Moderate)
Sulfur Dioxide (1971) Salt Lake Co, UT
Tooele Co
PM-2.5 (2006) * Salt Lake City, UT - (Moderate)
Sulfur Dioxide (1971) * Tooele Co, UT
Utah Co
PM-10 (1987) Utah Co, UT - (Moderate)
PM-2.5 (2006) * Provo, UT - (Moderate)
Weber Co
PM-10 (1987) * Ogden, UT - (Moderate)
PM-2.5 (2006) * Salt Lake City, UT - (Moderate)
VIRGINIA
Alexandria
8-Hr Ozone (2008) Washington, DC-MD-VA - (Marginal)
Arlington Co
8-Hr Ozone (2008) Washington, DC-MD-VA - (Marginal)
Fairfax
8-Hr Ozone (2008) Washington, DC-MD-VA - (Marginal)
Fairfax Co
8-Hr Ozone (2008) Washington, DC-MD-VA - (Marginal)
Falls Church
8-Hr Ozone (2008) Washington, DC-MD-VA - (Marginal)
Loudoun Co
8-Hr Ozone (2008) Washington, DC-MD-VA - (Marginal)
Manassas
8-Hr Ozone (2008) Washington, DC-MD-VA - (Marginal)
Manassas Park
8-Hr Ozone (2008) Washington, DC-MD-VA - (Marginal)
Prince William Co
8-Hr Ozone (2008) Washington, DC-MD-VA - (Marginal)
WEST VIRGINIA
Brooke Co
Sulfur Dioxide (2010) * Steubenville, OH-WV
Marshall Co
Sulfur Dioxide (2010) * Marshall, WV
WISCONSIN
Kenosha Co
8-Hr Ozone (2008) * Chicago-Naperville, IL-IN-WI - (Moderate)
Oneida Co
Sulfur Dioxide (2010) * Rhinelander, WI
Sheboygan Co
8-Hr Ozone (2008) Sheboygan County, WI - (Moderate)
WYOMING
Lincoln Co
8-Hr Ozone (2008) * Upper Green River Basin Area, WY - (Marginal)
Sheridan Co
PM-10 (1987) * Sheridan, WY - (Moderate)
Sublette Co
8-Hr Ozone (2008) Upper Green River Basin Area, WY - (Marginal)
Sweetwater Co
8-Hr Ozone (2008) * Upper Green River Basin Area, WY - (Marginal)


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