Valley Air District will perform scheduled system maintenance beginning at 6 PM on 6/29/2026. Some services may be temporarily unavailable for several hours.

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6/29/2026

fireworks

4th of July

pm 2.5

Fireworks Use Can Lead to Unhealthy Air Quality

Valley Air District officials are reminding residents that personal fireworks release high...
6/15/2026

Large Structural Fire in San Joaquin County Creates Potential Air Quality Impacts

A large warehouse fire in Tracy, San Joaquin County, is generating significant smoke that ...
4/21/2026

Valley Air District Releases 2025 Annual Report to the Community

The Valley Air District has released its 2025 Annual Report to the Community, now availabl...

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