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 Baja California
Air quality index (AQI) and PM2.5 air pollution in Baja California
LIVE AQI CITY RANKING
Real-time Baja California
Most polluted city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Mexicali | 53 |
| 2 | Ensenada | 52 |
| 3 | Ciudad Morelos | 51 |
| 4 | Tijuana | 36 |
| 5 | Guadalupe Victoria | 24 |
(local time)
SEE WORLD AQI RANKINGAIR QUALITY DATA CONTRIBUTORS
29 Contributors
See all
LIVE AQI CITY RANKING
Real-time Baja California
Cleanest city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Guadalupe Victoria | 24 |
| 2 | Tijuana | 36 |
| 3 | Ciudad Morelos | 51 |
| 4 | Ensenada | 52 |
| 5 | Mexicali | 53 |
(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.
Baja California air quality data attribution
29Contributors
2 Government Contributors
- Aire Baja California
1 station
Non-profit organization Contributor
- Ayuntamiento De Mexicali
1 station
Corporate Contributor
- 25 Anonymous contributors
25 stations
25 Anonymous Contributors
Which is the most polluted city in Baja California?
AQI US, Metric