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Real-time air quality monitoring for San Jose. See the latest PM2.5 and PM10 levels and protect your health today.
PM2.5 (Fine Particulate Matter)
San Jose Central Monitor
Air quality is considered satisfactory.
Acceptable, but may be a risk for sensitive individuals.
Members of sensitive groups may experience health effects.
Air quality in San Jose fluctuates daily. Using an AQI checker helps you determine if it's safe for outdoor activities based on real-time pollution levels.
In major cities like San Jose, common causes include vehicle emissions, industrial activity, and sometimes seasonal factors like wildfires or temperature inversions.
When AQI is high, it's recommended to stay indoors, use air purifiers, and avoid strenuous outdoor exercise.