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 Quincy

153

2 Imperial

88

3 Paramount

70

4 Del Rey

67

5 Calexico

65

6 Orange

65

7 Mecca

56

8 Trona

53

9 Oceano

50

10 McFarland

48

(local time)

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LIVE AQI CITY RANKING

Real-time California
Cleanest city ranking

#cityUS AQI
1 Arnold

0

2 Bayside

0

3 Big Bear Lake

0

4 Camino

0

5 Clearlake

0

6 Coachella

0

7 Coleville

0

8 Costa Mesa

0

9 Dana Point

0

10 Diamond Springs

0

(local time)

SEE WORLD AQI RANKING

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Good
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Unhealthy for sensitive groups
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Hazardous
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California air quality data attribution

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