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Colorado Whole or Part County Nonattainment Status by Year Since 1978 for all Criteria Pollutants

As of July 02, 2014
Listed by State, County, Pollutant (W=Whole County,P=Partial County designated nonattainment as of report date)
Select a State:  
AK | AL | AR | AZ | CA | CO | CT | DC | DE | FL | GA | GU | HI | IA | ID | IL | IN | KS | KY | LA | MA | MD | ME | MI | MN | MO |
MS | MT |NC | ND | NE | NH | NJ | NM | NV | NY | OH | OK | OR | PA | PR | RI | SC | TN | TX | UT | VA | VT | WA | WI | WV | WY |

Important Notes

COLORADO
County Pollutant 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14
Adams Co 8-Hr Ozone (1997) W W W W W W W W W W
Adams Co 8-Hr Ozone (2008) W W W
Adams County 1-Hr Ozone (1979) W W W W P P P P P P P P P P P P P P P P P P P
Adams County Carbon Monoxide (1971) W W W W W W W W W W W W P P P P P P P P P P P P
Adams County PM-10 (1987) P P P P P P P P P P P P
Arapahoe Co 8-Hr Ozone (1997) W W W W W W W W W W
Arapahoe Co 8-Hr Ozone (2008) W W W
Arapahoe County 1-Hr Ozone (1979) W W W W P P P P P P P P P P P P P P P P P P P
Arapahoe County Carbon Monoxide (1971) W W W W W W W W W W W W P P P P P P P P P P P P
Arapahoe County PM-10 (1987) P P P P P P P P P P P P
Archuleta County PM-10 (1987) P P P P P P P P P P P
Boulder Co 8-Hr Ozone (1997) W W W W W W W W W W
Boulder Co 8-Hr Ozone (2008) W W W
Boulder County 1-Hr Ozone (1979) W W W W W W P P P P P P P P P P P P P P P P P
Boulder County Carbon Monoxide (1971) W W W W W W W W W W W W P P P P P P P P P P P P
Boulder County PM-10 (1987) P P P P P P P P P P P P
Broomfield Co 1-Hr Ozone (1979) W
Broomfield Co 8-Hr Ozone (1997) W W W W W W W W W W
Broomfield Co 8-Hr Ozone (2008) W W W
Broomfield Co Carbon Monoxide (1971) W W
Broomfield Co PM-10 (1987) W W
Clear Creek County Carbon Monoxide (1971) W W W W W W W W W W W
Denver Co 8-Hr Ozone (1997) W W W W W W W W W W
Denver Co 8-Hr Ozone (2008) W W W
Denver County 1-Hr Ozone (1979) W W W W W W W W W W W W W W W W W W W W W W W
Denver County Carbon Monoxide (1971) W W W W W W W W W W W W W W W W W W W W W W W W
Denver County PM-10 (1987) W W W W W W W W W W W W
Douglas Co 8-Hr Ozone (1997) W W W W W W W W W W
Douglas Co 8-Hr Ozone (2008) W W W
Douglas County 1-Hr Ozone (1979) W W W W W W W W W W W W W W W W W W W W W W W
Douglas County Carbon Monoxide (1971) W W W W W W W W W W W W P P P P P P P P P P P P
Douglas County PM-10 (1987) W W W W W W W W W W W W
El Paso County 1-Hr Ozone (1979) W W
El Paso County Carbon Monoxide (1971) W W W W W W W P P P P P P P P P P P P P P P
Fremont County PM-10 (1987) P P P P P P P P P P
Gilpin County Carbon Monoxide (1971) W W W W W W W W W W W
Jefferson Co 8-Hr Ozone (1997) W W W W W W W W W W
Jefferson Co 8-Hr Ozone (2008) W W W
Jefferson County 1-Hr Ozone (1979) W W W W W W W W W W W W W W W W W W W W W W W
Jefferson County Carbon Monoxide (1971) W W W W W W W W W W W W P P P P P P P P P P P P
Jefferson County PM-10 (1987) W W W W W W W W W W W W
Larimer Co 8-Hr Ozone (1997) P P P P P P P P P P
Larimer Co 8-Hr Ozone (2008) P P P
Larimer County 1-Hr Ozone (1979) W W
Larimer County Carbon Monoxide (1971) P P P P P P P P P P P P P P P P P P P P P P P P P
Park County Carbon Monoxide (1971) W W W W
Pitkin County PM-10 (1987) P P P P P P P P P P P P P
Prowers County PM-10 (1987) P P P P P P P P P P P P P P P
Rio Blanco County 1-Hr Ozone (1979) W
Routt County PM-10 (1987) P P P P P P P P P P
San Miguel County PM-10 (1987) P P P P P P P P P P P
Teller County Carbon Monoxide (1971) W W W W P P P P P P P P P P
Weld Co 8-Hr Ozone (1997) P P P P P P P P P P
Weld Co 8-Hr Ozone (2008) P P P
Weld County 1-Hr Ozone (1979) W W
Weld County Carbon Monoxide (1971) P P P P P P P P P P P P P P P P P P P P P P


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