Castro Valley Real-time Air Quality Index (AQI) & Pollen Report - Air Matters

Castro Valley

Alameda County, California

2026-03-10 19:00

AQI (China)

Excellent

Pollutants|Pollens

PM2.5

μg/m³

9

Weather

17℃

44%

9 kph

5 of 11

Historical Data

Places included

Data Sources

http://www.airnow.gov/

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