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Air quality in San Jose

Air quality index (AQI⁺) and PM2.5 air pollution in San Jose • 16:49, Oct 29

Wildfires in San Jose

Real-time information

Active fires

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Small group of people cycling in morning smog.
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India Air Quality Alert

Polluted skies of Almaty.
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October 28, 2026: Almaty among top 10 most polluted cities in the world

Busan Fireworks Festival
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Seasonal fireworks influence international air quality

Which is the most polluted city in San Jose?