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

86

2 Paramount

76

3 Fort Jones

72

4 McFarland

66

5 Hanford

65

6 Wrightwood

65

7 Exeter

63

8 Oceano

61

9 Westwood

61

10 Corcoran

59

(local time)

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LIVE AQI CITY RANKING

Real-time California
Cleanest city ranking

#cityUS AQI
1 El Centro

0

2 Rancho Murieta

0

3 San Marcos

1

4 Thermal

1

5 Laguna Woods

2

6 Quartz Hill

2

7 Brea

3

8 Capitola

3

9 Lake San Marcos

3

10 Bridgeport

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?

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California air quality data attribution

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