|
United States AQI: Delaware: Dover: SO2 (Index)
|
37.000
27 Dec 1993
|
daily
|
09 Feb 1980 - 27 Dec 1993
|
|
United States AQI: New Mexico: Albuquerque: CO (Index)
|
6.000
31 Dec 2024
|
daily
|
01 Jan 1980 - 31 Dec 2024
|
|
United States AQI: New Mexico: Albuquerque: SO2 (Index)
|
0.000
30 Jun 2023
|
daily
|
18 Jan 1980 - 30 Jun 2023
|
|
United States AQI: North Dakota: Bismarck: SO2 (Index)
|
3.000
30 Sep 2023
|
daily
|
01 Jan 1980 - 30 Sep 2023
|
|
United States AQI: Idaho: Boise City: Ozone (Index)
|
35.000
24 Mar 2025
|
daily
|
10 May 2001 - 24 Mar 2025
|
|
United States AQI: Idaho: Boise City: SO2 (Index)
|
0.000
30 Jun 2023
|
daily
|
01 Jan 1980 - 30 Jun 2023
|
|
United States AQI: Massachusetts-New Hampshire: Boston-Cambridge-Newton: CO (Index)
|
3.000
31 Dec 2024
|
daily
|
01 Jan 1980 - 31 Dec 2024
|
|
United States AQI: Massachusetts-New Hampshire: Boston-Cambridge-Newton: SO2 (Index)
|
1.000
30 Jun 2023
|
daily
|
01 Jan 1980 - 30 Jun 2023
|
|
United States AQI: New York: Buffalo-Cheektowaga-Niagara Falls: CO (Index)
|
3.000
31 Dec 2024
|
daily
|
01 Jan 1980 - 31 Dec 2024
|
|
United States AQI: New York: Buffalo-Cheektowaga-Niagara Falls: SO2 (Index)
|
0.000
30 Sep 2023
|
daily
|
01 Jan 1980 - 30 Sep 2023
|
|
United States AQI: New York: Buffalo-Cheektowaga-Niagara Falls: PM10 (Index)
|
12.000
26 Dec 2024
|
daily
|
19 May 1985 - 26 Dec 2024
|
|
United States AQI: New York: Buffalo-Cheektowaga-Niagara Falls: NO2 (Index)
|
24.000
31 Dec 2024
|
daily
|
01 Jan 1980 - 31 Dec 2024
|
|
United States AQI: Vermont: Burlington-South Burlington: SO2 (Index)
|
0.000
30 Jun 2023
|
daily
|
01 Jan 1980 - 30 Jun 2023
|
|
United States AQI: Vermont: Burlington-South Burlington: NO2 (Index)
|
13.000
31 Dec 2021
|
daily
|
01 Oct 1985 - 31 Dec 2021
|
|
United States AQI: West Virginia: Charleston: SO2 (Index)
|
0.000
30 Jun 2023
|
daily
|
01 Jan 1980 - 30 Jun 2023
|
|
United States AQI: West Virginia: Charleston: NO2 (Index)
|
25.000
07 Oct 1998
|
daily
|
01 Jan 1980 - 07 Oct 1998
|
|
United States AQI: North Carolina-South Carolina: Charlotte-Concord-Gastonia: SO... (Index)
|
1.000
30 Sep 2023
|
daily
|
01 Jan 1980 - 30 Sep 2023
|
|
United States AQI: Tennessee-Georgia: Chattanooga: Ozone (Index)
|
47.000
24 Mar 2025
|
daily
|
02 Jan 1980 - 24 Mar 2025
|
|
United States AQI: Tennessee-Georgia: Chattanooga: PM10 (Index)
|
20.000
12 Jan 2015
|
daily
|
02 Apr 1986 - 12 Jan 2015
|
|
United States AQI: Wyoming: Cheyenne: SO2 (Index)
|
0.000
30 Jun 2023
|
daily
|
01 Jan 2011 - 30 Jun 2023
|
|
United States AQI: Illinois-Indiana-Wisconsin: Chicago-Naperville-Elgin: SO2 (Index)
|
6.000
30 Sep 2023
|
daily
|
01 Jan 1980 - 30 Sep 2023
|
|
United States AQI: Ohio-Kentucky-Indiana: Cincinnati: CO (Index)
|
3.000
01 Feb 2025
|
daily
|
01 Jan 1980 - 01 Feb 2025
|
|
United States AQI: Ohio-Kentucky-Indiana: Cincinnati: NO2 (Index)
|
35.000
31 Jan 2025
|
daily
|
01 Jan 1980 - 31 Jan 2025
|
|
United States AQI: Tennessee-Kentucky: Clarksville: CO (Index)
|
14.000
31 Dec 1995
|
daily
|
01 Apr 1982 - 31 Dec 1995
|
|
United States AQI: Tennessee-Kentucky: Clarksville: Ozone (Index)
|
44.000
24 Mar 2025
|
daily
|
01 Oct 1981 - 24 Mar 2025
|
|
United States AQI: Tennessee-Kentucky: Clarksville: PM10 (Index)
|
10.000
30 Apr 2016
|
daily
|
13 May 1989 - 30 Apr 2016
|
|
United States AQI: Tennessee-Kentucky: Clarksville: NO2 (Index)
|
2.000
10 Jun 2014
|
daily
|
01 Oct 1981 - 10 Jun 2014
|
|
United States AQI: Ohio: Cleveland-Elyria: CO (Index)
|
1.000
01 Feb 2025
|
daily
|
01 Jan 1980 - 01 Feb 2025
|
|
United States AQI: Ohio: Cleveland-Elyria: SO2 (Index)
|
1.000
31 Aug 2023
|
daily
|
01 Jan 1980 - 31 Aug 2023
|
|
United States AQI: Georgia-Alabama: Columbus: Ozone (Index)
|
32.000
24 Mar 2025
|
daily
|
05 Aug 1980 - 24 Mar 2025
|
|
United States AQI: Georgia-Alabama: Columbus: SO2 (Index)
|
6.000
31 Dec 2012
|
daily
|
07 Aug 1980 - 31 Dec 2012
|
|
United States AQI: Ohio: Columbus: Ozone (Index)
|
43.000
24 Mar 2025
|
daily
|
01 Jan 1980 - 24 Mar 2025
|
|
United States AQI: Maryland-West Virginia: Cumberland (Index)
|
1.000
08 Jun 2020
|
daily
|
01 Jan 1980 - 08 Jun 2020
|
|
United States AQI: Maryland-West Virginia: Cumberland: CO (Index)
|
10.000
19 May 1992
|
daily
|
18 Sep 1981 - 19 May 1992
|
|
United States AQI: Maryland-West Virginia: Cumberland: Ozone (Index)
|
17.000
30 Oct 1991
|
daily
|
01 Feb 1980 - 30 Oct 1991
|
|
United States AQI: Maryland-West Virginia: Cumberland: SO2 (Index)
|
1.000
08 Jun 2020
|
daily
|
01 Jan 1980 - 08 Jun 2020
|
|
United States AQI: Maryland-West Virginia: Cumberland: PM10 (Index)
|
19.000
28 Jun 1998
|
daily
|
12 Mar 1990 - 28 Jun 1998
|
|
United States AQI: Texas: Dallas-Fort Worth-Arlington: CO (Index)
|
10.000
01 Dec 2024
|
daily
|
01 Jan 1980 - 01 Dec 2024
|
|
United States AQI: Texas: Dallas-Fort Worth-Arlington: SO2 (Index)
|
3.000
30 Jun 2023
|
daily
|
01 Jan 1980 - 30 Jun 2023
|
|
United States AQI: Texas: Dallas-Fort Worth-Arlington: PM10 (Index)
|
10.000
23 Feb 2025
|
daily
|
02 Mar 1985 - 23 Feb 2025
|
|
United States AQI: Texas: Dallas-Fort Worth-Arlington: NO2 (Index)
|
35.000
30 Nov 2024
|
daily
|
01 Jan 1980 - 30 Nov 2024
|
|
United States AQI: Iowa-Illinois: Davenport-Moline-Rock Island: SO2 (Index)
|
0.000
31 Oct 2023
|
daily
|
01 Jan 1980 - 31 Oct 2023
|
|
United States AQI: Colorado: Denver-Aurora-Lakewood: CO (Index)
|
5.000
31 Dec 2024
|
daily
|
01 Jan 1980 - 31 Dec 2024
|
|
United States AQI: Colorado: Denver-Aurora-Lakewood: SO2 (Index)
|
6.000
31 Aug 2023
|
daily
|
01 Jan 1980 - 31 Aug 2023
|
|
United States AQI: Colorado: Denver-Aurora-Lakewood: NO2 (Index)
|
42.000
31 Dec 2024
|
daily
|
01 Jan 1980 - 31 Dec 2024
|
|
United States AQI: Iowa: Des Moines-West Des Moines: CO (Index)
|
2.000
31 Dec 2019
|
daily
|
05 Jan 1980 - 31 Dec 2019
|
|
United States AQI: Iowa: Des Moines-West Des Moines: Ozone (Index)
|
39.000
24 Mar 2025
|
daily
|
05 Jan 1980 - 24 Mar 2025
|
|
United States AQI: Iowa: Des Moines-West Des Moines: SO2 (Index)
|
0.000
31 Dec 2018
|
daily
|
05 Jan 1980 - 31 Dec 2018
|
|
United States AQI: Iowa: Des Moines-West Des Moines: PM10 (Index)
|
18.000
31 Jan 2025
|
daily
|
23 Jun 1983 - 31 Jan 2025
|
|
United States AQI: Iowa: Des Moines-West Des Moines: NO2 (Index)
|
4.000
30 Jun 2024
|
daily
|
19 Apr 2001 - 30 Jun 2024
|
|
United States AQI: Michigan: Detroit-Warren-Dearborn: SO2 (Index)
|
23.000
30 Jun 2023
|
daily
|
01 Jan 1980 - 30 Jun 2023
|
|
United States AQI: Texas: Houston-The Woodlands-Sugar Land: SO2 (Index)
|
17.000
30 Jun 2023
|
daily
|
01 Jan 1980 - 30 Jun 2023
|
|
United States AQI: West Virginia-Kentucky-Ohio: Huntington-Ashland: CO (Index)
|
2.000
01 Jul 2003
|
daily
|
18 Jan 1980 - 01 Jul 2003
|
|
United States AQI: West Virginia-Kentucky-Ohio: Huntington-Ashland: SO2 (Index)
|
0.000
31 Aug 2023
|
daily
|
01 Jan 1980 - 31 Aug 2023
|
|
United States AQI: Indiana: Indianapolis-Carmel-Anderson: SO2 (Index)
|
0.000
31 Aug 2023
|
daily
|
01 Jan 1980 - 31 Aug 2023
|
|
United States AQI: Mississippi: Jackson: SO2 (Index)
|
0.000
31 Jul 2023
|
daily
|
01 Jan 1991 - 31 Jul 2023
|
|
United States AQI: Mississippi: Jackson: NO2 (Index)
|
11.000
30 Jun 2020
|
daily
|
24 Jan 1980 - 30 Jun 2020
|
|
United States AQI: Missouri-Kansas: Kansas City: CO (Index)
|
2.000
12 Jun 2023
|
daily
|
01 Jan 1980 - 12 Jun 2023
|
|
United States AQI: Missouri-Kansas: Kansas City: SO2 (Index)
|
1.000
30 Jun 2023
|
daily
|
01 Jan 1980 - 30 Jun 2023
|
|
United States AQI: Tennessee-Virginia: Kingsport-Bristol-Bristol: CO (Index)
|
6.000
01 May 2016
|
daily
|
02 Feb 1980 - 01 May 2016
|
|
United States AQI: Tennessee-Virginia: Kingsport-Bristol-Bristol: Ozone (Index)
|
44.000
24 Mar 2025
|
daily
|
01 Jan 1980 - 24 Mar 2025
|
|
United States AQI: Tennessee-Virginia: Kingsport-Bristol-Bristol: SO2 (Index)
|
44.000
30 Jun 2023
|
daily
|
01 Jan 1980 - 30 Jun 2023
|
|
United States AQI: Tennessee-Virginia: Kingsport-Bristol-Bristol: PM10 (Index)
|
29.000
31 Dec 1998
|
daily
|
04 Apr 1986 - 31 Dec 1998
|
|
United States AQI: Tennessee-Virginia: Kingsport-Bristol-Bristol: NO2 (Index)
|
8.000
30 Apr 2016
|
daily
|
01 Jan 1980 - 30 Apr 2016
|
|
United States AQI: Wisconsin-Minnesota: La Crosse-Onalaska: SO2 (Index)
|
9.000
31 Oct 1982
|
daily
|
01 Aug 1981 - 31 Oct 1982
|
|
United States AQI: Wisconsin-Minnesota: La Crosse-Onalaska: PM2.5 (Index)
|
17.000
18 Dec 2023
|
daily
|
09 Dec 2005 - 18 Dec 2023
|
|
United States AQI: Nevada: Las Vegas-Henderson-Paradise: SO2 (Index)
|
0.000
31 Aug 2023
|
daily
|
10 Feb 1981 - 31 Aug 2023
|
|
United States AQI: Nebraska: Lincoln: CO (Index)
|
5.000
03 Feb 2012
|
daily
|
01 Jan 1980 - 03 Feb 2012
|
|
United States AQI: Nebraska: Lincoln: Ozone (Index)
|
34.000
24 Mar 2025
|
daily
|
01 Apr 1980 - 24 Mar 2025
|
|
United States AQI: Nebraska: Lincoln: PM10 (Index)
|
38.000
26 Sep 1998
|
daily
|
04 Jan 1988 - 26 Sep 1998
|
|
United States AQI: Nebraska: Lincoln: PM2.5 (Index)
|
37.000
29 Nov 2024
|
daily
|
03 Jan 1999 - 29 Nov 2024
|
|
United States AQI: Arkansas: Little Rock-North Little Rock-Conway: CO (Index)
|
3.000
01 Oct 2024
|
daily
|
01 Apr 1982 - 01 Oct 2024
|
|
United States AQI: Arkansas: Little Rock-North Little Rock-Conway: SO2 (Index)
|
0.000
30 Jun 2023
|
daily
|
01 Jan 1980 - 30 Jun 2023
|
|
United States AQI: Arkansas: Little Rock-North Little Rock-Conway: PM10 (Index)
|
6.000
30 Sep 2024
|
daily
|
12 Oct 1985 - 30 Sep 2024
|
|
United States AQI: California: Los Angeles-Long Beach-Anaheim: SO2 (Index)
|
1.000
30 Jun 2023
|
daily
|
01 Jan 1980 - 30 Jun 2023
|
|
United States AQI: Kentucky-Indiana: Louisville/Jefferson County: SO2 (Index)
|
1.000
31 Aug 2023
|
daily
|
01 Jan 1980 - 31 Aug 2023
|
|
United States AQI: Wisconsin: Madison: CO (Index)
|
7.000
01 Oct 2001
|
daily
|
16 Aug 1982 - 01 Oct 2001
|
|
United States AQI: Wisconsin: Madison: SO2 (Index)
|
0.000
26 Dec 2022
|
daily
|
01 Jan 1980 - 26 Dec 2022
|
|
United States AQI: Wisconsin: Madison: NO2 (Index)
|
14.000
02 Sep 1991
|
daily
|
01 Jan 1980 - 02 Sep 1991
|
|
United States AQI: New Hampshire: Manchester-Nashua: CO (Index)
|
1.000
31 Dec 2024
|
daily
|
01 Jan 1980 - 31 Dec 2024
|
|
United States AQI: New Hampshire: Manchester-Nashua: SO2 (Index)
|
0.000
30 Jun 2023
|
daily
|
01 Jan 1980 - 30 Jun 2023
|
|
United States AQI: New Hampshire: Manchester-Nashua: PM10 (Index)
|
5.000
31 Dec 2024
|
daily
|
14 Mar 1985 - 31 Dec 2024
|
|
United States AQI: New Hampshire: Manchester-Nashua: NO2 (Index)
|
1.000
17 Sep 2014
|
daily
|
01 Jul 1986 - 17 Sep 2014
|
|
United States AQI: Tennessee-Mississippi-Arkansas: Memphis: CO (Index)
|
3.000
01 Jul 2024
|
daily
|
04 Jan 1980 - 01 Jul 2024
|
|
United States AQI: Florida: Miami-Fort Lauderdale-West Palm Beach: SO2 (Index)
|
0.000
30 Jun 2023
|
daily
|
19 Jan 1980 - 30 Jun 2023
|
|
United States AQI: Florida: Miami-Fort Lauderdale-West Palm Beach: NO2 (Index)
|
25.000
31 Dec 2024
|
daily
|
08 Jan 1980 - 31 Dec 2024
|
|
United States AQI: Minnesota-Wisconsin: Minneapolis-St. Paul-Bloomington: SO2 (Index)
|
9.000
30 Jun 2023
|
daily
|
01 Jan 1980 - 30 Jun 2023
|
|
United States AQI: Minnesota-Wisconsin: Minneapolis-St. Paul-Bloomington: NO2 (Index)
|
14.000
30 Sep 2024
|
daily
|
01 Jan 1980 - 30 Sep 2024
|
|
United States AQI: Alabama: Mobile: CO (Index)
|
3.000
31 Aug 2003
|
daily
|
01 Aug 2002 - 31 Aug 2003
|
|
United States AQI: Alabama: Mobile: SO2 (Index)
|
1.000
30 Jun 2023
|
daily
|
01 Jan 1980 - 30 Jun 2023
|
|
United States AQI: North Carolina-South Carolina: Myrtle Beach-Conway-North Myrt... (Index)
|
0.000
17 Aug 2021
|
daily
|
19 Oct 2016 - 17 Aug 2021
|
|
United States AQI: North Carolina-South Carolina: Myrtle Beach-Conway-North Myrt... (Index)
|
43.000
24 Mar 2025
|
daily
|
17 Dec 2000 - 24 Mar 2025
|
|
United States AQI: Alaska: Nashville-Davidson-Murfreesboro-Franklin: CO (Index)
|
6.000
01 Oct 2024
|
daily
|
01 Jan 1980 - 01 Oct 2024
|
|
United States AQI: Alaska: Nashville-Davidson-Murfreesboro-Franklin: Ozone (Index)
|
46.000
24 Mar 2025
|
daily
|
01 Jan 1980 - 24 Mar 2025
|
|
United States AQI: Alaska: Nashville-Davidson-Murfreesboro-Franklin: SO2 (Index)
|
0.000
30 Jun 2023
|
daily
|
01 Jan 1980 - 30 Jun 2023
|
|
United States AQI: Alaska: Nashville-Davidson-Murfreesboro-Franklin: NO2 (Index)
|
20.000
30 Sep 2024
|
daily
|
01 Jun 1980 - 30 Sep 2024
|
|
United States AQI: Louisiana: New Orleans-Metairie: SO2 (Index)
|
13.000
30 Sep 2023
|
daily
|
01 Apr 1980 - 30 Sep 2023
|
|
United States AQI: New York-New Jersey-Pennsylvania: New York-Newark-Jersey City... (Index)
|
0.000
30 Sep 2023
|
daily
|
01 Jan 1980 - 30 Sep 2023
|
|
United States AQI: New York-New Jersey-Pennsylvania: New York-Newark-Jersey City... (Index)
|
30.000
26 Dec 2024
|
daily
|
03 Oct 1983 - 26 Dec 2024
|
|
United States AQI: Oklahoma: Oklahoma City: SO2 (Index)
|
0.000
30 Sep 2023
|
daily
|
01 Jan 1980 - 30 Sep 2023
|
|
United States AQI: Florida: Orlando-Kissimmee-Sanford: CO (Index)
|
10.000
31 Dec 2024
|
daily
|
04 Jan 1980 - 31 Dec 2024
|