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Air quality in San Jose

Air quality index (AQI⁺) and PM2.5 air pollution in San Jose • 08:29, Aug 28

Wildfires in San Jose

Real-time information

Active fires

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August 28, 2026: Delhi among top 10 most polluted cities in the world

Wildfire at night.
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Wildfire Map Spotlight: Bug and Stallion Fires, Nevada

Wildfire on a mountain.
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Wildfire Map Spotlight: Wrights Spring Fire, Oregon

Which is the most polluted city in San Jose?