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Air quality in Santa Barbara

Air quality index (AQI⁺) and PM2.5 air pollution in Santa Barbara • 16:00, May 21

Live most polluted city ranking

Real-time Santa Barbara most polluted city ranking

#CitiesAQI⁺ US
1
The national flag of Honduras

Agualote

98

2
The national flag of Honduras

Trinidad

88

Live cleanest city ranking

Real-time Santa Barbara cleanest city ranking

#CitiesAQI⁺ US
1
The national flag of Honduras

Trinidad

88

2
The national flag of Honduras

Agualote

98

Polluted skies of Ulaanbaatar
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May 21, 2026: Ulaanbaatar among top 10 most polluted cities in the world

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Wildfire map spotlight: Bain Fire, California

Smoke rising from a dense forest
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Wildfire map spotlight: Southwest Kansas wildfires

Which is the most polluted city in Santa Barbara?