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Green Book Nonattainment Areas

Maintenance Classified Carbon Monoxide (1971) Areas

As of June 17, 2016
Current and historical design value data can be found at https://www.epa.gov/airtrends/values.html
Areas Listed Alphabetically Classification No. Counties NAA 2010 Population EPA Region State
Albuquerque, NM Moderate <= 12.7ppm 1 662,564 6 NM
Anchorage, AK Serious 1 286,227 10 AK
Baltimore, MD Moderate <= 12.7ppm 1 15,455 3 MD
Boston, MA Moderate <= 12.7ppm 3 1,135,003 1 MA
Chico, CA Moderate <= 12.7ppm 1 86,963 9 CA
Cleveland, OH Moderate <= 12.7ppm 1 1,280,122 5 OH
Colorado Springs, CO Moderate <= 12.7ppm 2 555,742 8 CO
Denver-Boulder, CO Serious 7 2,610,637 8 CO
Duluth, MN Moderate <= 12.7ppm 1 85,857 5 MN
El Paso, TX Moderate <= 12.7ppm 1 73,100 6 TX
Fairbanks, AK Serious 1 46,211 10 AK
Fort Collins, CO Moderate <= 12.7ppm 1 170,639 8 CO
Fresno, CA Moderate > 12.7ppm 1 631,483 9 CA
Grants Pass, OR Moderate <= 12.7ppm 1 22,449 10 OR
Hartford-New Britain-Middletown, CT Moderate <= 12.7ppm 4 1,106,678 1 CT
Klamath Falls, OR Moderate <= 12.7ppm 1 20,703 10 OR
Lake Tahoe South Shore, CA Moderate <= 12.7ppm 1 43,110 9 CA
Las Vegas, NV Serious 1 679,034 9 NV
Longmont, CO Moderate <= 12.7ppm 2 86,558 8 CO
Los Angeles-South Coast Air Basin, CA Serious 4 15,799,134 9 CA
Medford, OR Moderate <= 12.7ppm 1 86,056 10 OR
Memphis, TN Moderate <= 12.7ppm 1 927,644 4 TN
Minneapolis-St. Paul, MN Moderate <= 12.7ppm 8 2,920,178 5 MN
Missoula, MT Moderate <= 12.7ppm 1 59,733 8 MT
Modesto, CA Moderate <= 12.7ppm 1 320,707 9 CA
New York-N. New Jersey-Long Island, NY-NJ-CT Moderate > 12.7ppm 14 14,531,186 2-2-1 NY-NJ-CT
Ogden, UT Moderate <= 12.7ppm 1 82,825 8 UT
Philadelphia-Camden Co, PA-NJ Moderate <= 12.7ppm 2 1,187,407 3-2 PA-NJ
Phoenix, AZ Serious 1 3,763,324 9 AZ
Portland, OR Moderate <= 12.7ppm 3 1,330,473 10 OR
Provo, UT Moderate > 12.7ppm 1 166,596 8 UT
Raleigh-Durham, NC Moderate <= 12.7ppm 2 1,168,580 4 NC
Reno, NV Moderate <= 12.7ppm 1 221,743 9 NV
Sacramento, CA Moderate <= 12.7ppm 3 1,530,116 9 CA
San Diego, CA Moderate <= 12.7ppm 1 2,909,194 9 CA
San Francisco-Oakland-San Jose, CA Moderate <= 12.7ppm 9 4,296,499 9 CA
Seattle-Tacoma, WA Moderate > 12.7ppm 3 3,016,710 10 WA
Spokane, WA Serious 1 363,834 10 WA
Stockton, CA Moderate <= 12.7ppm 1 373,545 9 CA
Syracuse, NY Moderate <= 12.7ppm 1 467,026 2 NY
Vancouver, WA Moderate <= 12.7ppm 1 400,271 10 WA
Washington, DC-MD-VA Moderate <= 12.7ppm 5 1,793,091 3-3-3 DC-MD-VA
Winston-Salem, NC Moderate <= 12.7ppm 1 350,670 4 NC
 
43 Total Areas 97 67,665,077  

No. of Counties reflects the number of counties in an area, while the total count only counts a county once and doesn't double count the county if it is in more than area.

Multi-state areas are counted in the nonattainment report until all state areas have been redesignated.


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