Get a monitor and contributor to air quality data in your city.
Air Quality 
Air Monitors
Air Purifiers
For Business
News
Support
Air quality in Arizona
Air quality index (AQI) and PM2.5 air pollution in Arizona
LIVE AQI CITY RANKING
Real-time Arizona
Most polluted city ranking
| # | city | US AQI |
|---|---|---|
| 1 | San Tan Valley | 70 |
| 2 | Casa Grande | 61 |
| 3 | Stanfield | 61 |
| 4 | Fort McDowell | 55 |
| 5 | Buckeye | 53 |
| 6 | Ajo | 50 |
| 7 | Surprise | 48 |
| 8 | Marana | 46 |
| 9 | Sun City | 45 |
| 10 | Grand Canyon Village | 43 |
(local time)
SEE WORLD AQI RANKINGAIR QUALITY DATA CONTRIBUTORS
86 Contributors
See all
LIVE AQI CITY RANKING
Real-time Arizona
Cleanest city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Flagstaff | 11 |
| 2 | Cottonwood | 12 |
| 3 | Chino Valley | 14 |
| 4 | Prescott | 14 |
| 5 | Prescott Valley | 14 |
| 6 | Sedona | 14 |
| 7 | Camp Verde | 17 |
| 8 | Mohave | 17 |
| 9 | New River | 17 |
| 10 | Yavapai | 17 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
Good
Moderate
Unhealthy for sensitive groups
Unhealthy
Very unhealthy
Hazardous
News
The latest air quality news and resources.
Arizona air quality data attribution
86Contributors
- Arizona Department of Environment Quality (ADEQ)
55 stations
- Maricopa County Air Monitoring Division
21 stations
- USA National Park Service
4 stations
3 Government Contributors
- Blackstone Community Member
1 station
- Warpaint
1 station
- Adrian
1 station
- thecravathian
1 station
- IQAir Community Member
1 station
- Chris
1 station
- rich
1 station
- George Goley
1 station
8 Individual Contributors
75 Anonymous contributors75 stations
75 Anonymous Contributors
Which is the most polluted city in Arizona?
- San Tan Valley 70
- Casa Grande 61
- Stanfield 61
- Fort McDowell 55
- Buckeye 53
- Ajo 50
- Surprise 48
- Marana 46
- Sun City 45
- Grand Canyon Village 43
- Willcox 42
- Benson 40
- Guadalupe 40
- Queen Valley 40
- Sun Lakes 40
- Casa Blanca 39
- Fountain Hills 39
- Laveen 39
- Paradise Valley 39
- St Johns 39
- Tempe Junction 39
- Yuma 39
- Carefree 38
- Queen Creek 38
- Rio Verde 38
- Sacaton 38
- Scottsdale 38
- Cave Creek 37
- Douglas 37
- First Mesa 37
- Hayden 37
- Hidden Valley 37
- Mesa 37
- Tolleson 37
- Tucson 37
- Anthem 36
- Avondale 36
- Blackwater 36
- Youngtown 36
- Arizona City 35
- Black Canyon City 35
- Coolidge 35
- Gold Canyon 35
- Goodyear 35
- Litchfield Park 35
- Sun City West 35
- Tonto Basin 35
- Arivaca Junction 34
- Cordes Lakes 34
- Eloy 34
- Florence 34
- Gold Camp 34
- Green Valley 34
- Pine 34
- Rio Rico 34
- Spring Valley 34
- Tubac 34
- Apache Junction 33
- Avra Valley 33
- Citrus Park 33
- Dilkon 33
- Drexel Heights 33
- East Sahuarita 33
- Flowing Wells 33
- Picture Rocks 33
- Star Valley 33
- Summit 33
- Sun Valley 33
- Three Points 33
- Tucson Estates 33
- Valencia West 33
- Catalina 32
- Huachuca City 32
- Lake Montezuma 32
- Mayer 32
- Mescal 32
- Oro Valley 32
- Roosevelt 32
- Saddle Brooke 32
- South Tucson 32
- Tanque Verde 32
- Tortolita 32
- Vail 32
- Whetstone 32
- Big Park 31
- Chinle 31
- Clarkdale 31
- Cornville 31
- Dewey-Humboldt 31
- Ganado 31
- Many Farms 31
- Mountainaire 31
- Oracle 31
- Sells 31
- Superior 31
- Verde Village 31
- Village of Oak Creek (Big Park) 31
- Wenden 31
- West Sedona 31
- Central Heights-Midland City 30
- Claypool 30
- Globe 30
- Joseph City 30
- Kachina Village 30
- Kayenta 30
- Kearny 30
- Maricopa 30
- Paulden 30
- Peridot 30
- Saint David 30
- San Manuel 30
- Six Shooter Canyon 30
- Williamson 30
- Glendale 29
- Mammoth 29
- Miami 29
- Parks 29
- Peoria 29
- Saint Michaels 29
- San Carlos 29
- Taylor 29
- Tsaile 29
- Williams 29
- Window Rock 29
- Cibecue 28
- Heber-Overgaard 28
- Houck 28
- Lake of the Woods 28
- Linden 28
- Lukachukai 28
- Pinetop-Lakeside 28
- Show Low 28
- White Mountain Lake 28
- Wickenburg 28
- Bylas 27
- Cienega Springs 27
- Coconino 27
- Congress 27
- Ehrenberg 27
- Kaibito 27
- Sierra Vista Southeast 27
- Tombstone 27
- Tuba City 27
- Bagdad 26
- Canyon Day 26
- El Mirage 26
- Grand Canyon 26
- North Fork 26
- Quartzsite 26
- Whiteriver 26
- Lake Havasu City 25
- Nogales 25
- Saint Johns 25
- Salome 25
- Desert Hills 24
- Gila Bend 24
- Parker 24
- Golden Shores 23
- Holbrook 23
- Mohave Valley 22
- Peach Springs 22
- Willow Valley 22
- Winslow 22
- Bullhead City 21
- Colorado City 21
- Corona de Tucson 21
- Fort Defiance 21
- Payson 21
- Phoenix 21
- Sierra Vista 21
- Snowflake 21
- Bisbee 20
- Catalina Foothills 20
- Eagar 20
- Golden Valley 20
- Kingman 20
- Naco 20
- Avenue B and C 19
- Chandler 19
- Dolan Springs 19
- Meadview 19
- New Kingman-Butler 19
- Pima 19
- Tempe 19
- Casas Adobes 18
- Donovan Estates 18
- Gilbert 18
- LeChee 18
- Page 18
- Safford 18
- Sahuarita 18
- Springerville 18
- Thatcher 18
- Valle Vista 18
- Beaver Dam 17
- Cactus Flat 17
- Camp Verde 17
- Fortuna Foothills 17
- Mohave 17
- New River 17
- Pirtleville 17
- Scenic 17
- Somerton 17
- Swift Trail Junction 17
- Wellton 17
- Yavapai 17
- Clifton 16
- Morenci 16
- San Luis 16
- Centennial Park 15
- Fredonia 15
- Chino Valley 14
- Prescott 14
- Prescott Valley 14
- Sedona 14
- Cottonwood 12
- Flagstaff 11
AQI US, Metric