United States
2,673 monitoring stations · readings from 9 to 154
Average AQI
Air quality in United States
Air quality in United States is currently 39 on the AQI scale, which falls in the Good band. That number is the average across every monitoring station reporting in United States right now.
We aggregate 2,673 stations across United States. Individual stations range from 9 at the cleanest to 154 at the worst, so conditions vary across United States — the local figure matters more than the average.
United States breaks down into 54 regions you can open individually. Of those listed below, Gaum is reading highest at 154 and Connecticut lowest at 16.
Readings refresh hourly from the official monitoring networks we track. Conditions can still change quickly, so check back before planning time outdoors.
What to do at good levels
Outdoor activity
No restrictions. This is a good day for exercise, commuting on foot or bike, and time outside.
Sensitive groups
Children, older adults and people with asthma or heart conditions can go about their day as normal.
Indoor air
Open the windows. Outdoor air is currently cleaner than typical indoor air, so ventilating helps.
Regions in United States
54 regions
Gaum
Unhealthy
- Stations
- 1
- Range
- 154–154
53Texas
Moderate
- Stations
- 142
- Range
- 23–104
50Alabama
Good
- Stations
- 26
- Range
- 42–54
50Georgia
Good
- Stations
- 40
- Range
- 33–63
50Louisiana
Good
- Stations
- 38
- Range
- 42–56
50North Dakota
Good
- Stations
- 16
- Range
- 38–52
Puerto Ricocaguas
Good
- Stations
- 1
- Range
- 50–50
49Arkansas
Good
- Stations
- 12
- Range
- 42–52
49Hawaii
Good
- Stations
- 30
- Range
- 46–52
West Virginia
Good
- Stations
- 3
- Range
- 46–50
48Mississippi
Good
- Stations
- 18
- Range
- 42–52
46South Carolina
Good
- Stations
- 29
- Range
- 29–52
45North Carolina
Good
- Stations
- 54
- Range
- 21–52
45Puerto Rico
Good
- Stations
- 11
- Range
- 42–46
44Kansas
Good
- Stations
- 17
- Range
- 21–54
44Missouri
Good
- Stations
- 39
- Range
- 21–54
44Tennessee
Good
- Stations
- 44
- Range
- 21–50
44Washington
Good
- Stations
- 139
- Range
- 25–52
43Alaska
Good
- Stations
- 16
- Range
- 42–46
43California
Good
- Stations
- 418
- Range
- 17–76
43Idaho
Good
- Stations
- 57
- Range
- 17–54
43Nevada
Good
- Stations
- 41
- Range
- 17–52
43Oklahoma
Good
- Stations
- 31
- Range
- 21–50
43Oregon
Good
- Stations
- 127
- Range
- 17–54
42Arizona
Good
- Stations
- 87
- Range
- 17–68
41Montana
Good
- Stations
- 38
- Range
- 17–50
40Florida
Good
- Stations
- 116
- Range
- 21–60
39New Mexico
Good
- Stations
- 45
- Range
- 17–58
39Utah
Good
- Stations
- 57
- Range
- 21–52
38Minnesota
Good
- Stations
- 51
- Range
- 38–42
34Illinois
Good
- Stations
- 64
- Range
- 21–56
34Ohio
Good
- Stations
- 69
- Range
- 17–58
34Wisconsin
Good
- Stations
- 39
- Range
- 21–50
33South Dakota
Good
- Stations
- 17
- Range
- 9–50
32Michigan
Good
- Stations
- 49
- Range
- 21–50
31Virginia
Good
- Stations
- 46
- Range
- 17–46
30Kentucky
Good
- Stations
- 44
- Range
- 17–50
29Colorado
Good
- Stations
- 73
- Range
- 12–56
Delaware
Good
- Stations
- 6
- Range
- 27–31
29District of Columbia
Good
- Stations
- 6
- Range
- 27–32
About United States
Coordinates
38.484, -99.175
Centroid of monitored stations
Stations
2,673
Reporting in this area
Spread
9 – 154
Cleanest to worst station reading
Other countries nearby
United States air quality, answered
United States is currently reading an AQI of 39, which is Good. It is the average across 2,673 reporting stations.
No restrictions. This is a good day for exercise, commuting on foot or bike, and time outside. Children, older adults and people with asthma or heart conditions can go about their day as normal.
39 sits in the Good band of the air quality index. The index runs from 0 to 500, and the lower the number the cleaner the air.
We currently aggregate 2,673 stations in United States, reading between 9 and 154.
Of the regions currently listed for United States, Gaum is reading highest at 154 (Unhealthy).
Hourly. We pull from the official monitoring networks that publish for this country, and this page refreshes on the same cadence.
See United States on the map.
Every station around it, live — or find out what today's reading means for you personally.