Air quality in California

Air quality index (AQI) and PM2.5 air pollution in California

Last update at (local time)

LIVE AQI CITY RANKING

Real-time California
Most polluted city ranking

#cityUS AQI
1 Florin

85

2 Paramount

76

3 McFarland

74

4 Oceano

63

5 Exeter

62

6 Glen Avon

57

7 Del Rey

56

8 Corcoran

55

9 Sutter

55

10 Compton

50

(local time)

SEE WORLD AQI RANKING

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5813 Contributors

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LIVE AQI CITY RANKING

Real-time California
Cleanest city ranking

#cityUS AQI
1 Capitola

0

2 El Centro

0

3 Quartz Hill

1

4 Laguna Woods

2

5 Lake San Marcos

2

6 Thermal

2

7 Brea

3

8 San Juan Capistrano

3

9 Kirkwood

4

10 Lee Vining

4

(local time)

SEE WORLD AQI RANKING

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Good
Moderate
Unhealthy for sensitive groups
Unhealthy
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Hazardous
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How to best protect from air pollution?

Reduce your air pollution exposure in California

California air quality data attribution

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