San Jose Air Quality Index (AQI) and Air Pollution
The San Jose Air Quality Index (AQI) today is 43 (Good). The dominant pollutant is O3. Other measured pollutants include NO₂ (0.4 ppb), SO₂ (0.3 ppb), CO (0.086 ppm), O₃ (0.046 ppm), PM10 (17.1µg/m³), PM2.5 (5.9 µg/m³), contributing to air pollution.
Live AQI
43(US-AQI)
Air Quality is
Good
Main Pollutant: O3
Last updated: just now
Good
Moderate
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Unhealthy
Severe
Hazardous
0
50
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300301+
17°C
70%
32 Km/h
Major Pollutants San Jose
PM2.5
Good5.9 µg/m³
PM10
Good17.1 µg/m³
O₃
Good0.046 ppm
CO
Good0.086 ppm
NO₂
Good0.4 ppb
SO₂
Good0.3 ppb
In San Jose, the main air pollutant is O3. It mostly comes from Ozone forms when sunlight reacts with gases from vehicles and industries. It can irritate the lungs and throat and make it difficult to breathe especially for people with asthma. To stay safe, Try to avoid outdoor exercise during afternoon hours when ozone levels are usually high.