Air Quality 
Air Monitors
Air Purifiers
For Business
News
Support
102.8K people follow this city
Live
Good
Moderate
Unhealthy for sensitive groups
Unhealthy
Very unhealthy
Hazardous
Full screen
Contributors
30
Stations
31
Contributors category
1
Government
0
Non-profit organization
0
Educational
0
Corporate
2
Individual
27
Anonymous
Most polluted air quality stations
| # | station | US AQI |
|---|---|---|
| 1 | Boulder Reservoir | 48 |
| 2 | Boulder - CU - 2102 Athens St. | 44 |
| 3 | Miami Way | 32 |
| 4 | 700 Walnut Street | 31 |
| 5 | South 42nd Street | 31 |
| 6 | Norlin Library | 30 |
| 7 | Aztec Central | 29 |
| 8 | Hawk Lane | 29 |
| 9 | Walker Ranch, Pine Needle Notch | 29 |
| 10 | Winds II, Valmont & 29th | 29 |
Health Recommendations
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
community highlight
Boulder most followed contributors
Become a contributor
Get an AirVisual Outdoor and contribute to collecting millions of data points for the Boulder map to track local air pollution
News
The latest air quality news and resources.
Understand air pollution and protect yourself
Boulder air quality data attribution
30Contributors
Government Contributor
- Russ Stewart
1 station
- kleinp
1 station
2 Individual Contributors
27 Anonymous contributors27 stations
27 Anonymous Contributors
Data validated and calibrated by IQAirWhere is the cleanest air quality in Boulder?
- Boulder Reservoir 48
- Boulder - CU - 2102 Athens St. 44
- Miami Way 32
- 700 Walnut Street 31
- South 42nd Street 31
- Norlin Library 30
- Aztec Central 29
- Hawk Lane 29
- Walker Ranch, Pine Needle Notch 29
- Winds II, Valmont & 29th 29
- 10th Street 28
- Dartmouth Avenue 28
- Grape Avenue 28
- Grove Street 28
- Hawthorn Avenue 28
- Chautauqua Heights, Cascade Avenue 27
- Stony Hill Road 27
- Bean Mountain Lane 26
- Shining Mountain Waldorf School 26
- Concord Ave 25
- Thunderhead Drive 25
- Kalmia Avenue 24
- Kincross Way 24
- University Hill 24
- Frontage Road 23
- North Boulder 23
- Keewayden 22
- Rural North Boulder 22
- Artesian Drive 21
- Redwood & Riverside 21
- Gillaspie Dr 5
Stay Informed. Download #1 air quality app
Rated 4.8Air pollution forecast, pollution alerts and much more to help you plan your days and keep protected against air pollution
AQI US, Metric