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Historical Whole or Part County Nonattainment Status by Year Since 1978 for Colorado

As of December 14, 2012
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
Adams Co 8-Hr Ozone 1997 W W W W W W W W
Adams Co 8-Hr Ozone 2008 W
Adams County 1-Hr Ozone 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 CO 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 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
Arapahoe Co 8-Hr Ozone 2008 W
Arapahoe County 1-Hr Ozone 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 CO 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 P P P P P P P P P P P P
Archuleta County PM-10 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
Boulder Co 8-Hr Ozone 2008 W
Boulder County 1-Hr Ozone 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 CO 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 P P P P P P P P P P P P
Broomfield Co 1-Hr Ozone W
Broomfield Co 8-Hr Ozone 1997 W W W W W W W W
Broomfield Co 8-Hr Ozone 2008 W
Broomfield Co CO W W
Broomfield Co PM-10 W W
Clear Creek County CO 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
Denver Co 8-Hr Ozone 2008 W
Denver County 1-Hr Ozone 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 CO 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 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
Douglas Co 8-Hr Ozone 2008 W
Douglas County 1-Hr Ozone 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 CO 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 W W W W W W W W W W W W
El Paso County 1-Hr Ozone W W
El Paso County CO 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 P P P P P P P P P P
Gilpin County CO 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
Jefferson Co 8-Hr Ozone 2008 W
Jefferson County 1-Hr Ozone 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 CO 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 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
Larimer Co 8-Hr Ozone 2008 P
Larimer County 1-Hr Ozone W W
Larimer County CO 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 CO W W W W
Pitkin County PM-10 P P P P P P P P P P P P P
Prowers County PM-10 P P P P P P P P P P P P P P P
Rio Blanco County 1-Hr Ozone W
Routt County PM-10 P P P P P P P P P P
San Miguel County PM-10 P P P P P P P P P P P
Teller County CO 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
Weld Co 8-Hr Ozone 2008 P
Weld County 1-Hr Ozone W W
Weld County CO 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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