Air Quality Informaton
- Spare the Air Status for Thursday, March 28, 2024
No Spare the Air Alert in Effect
AIRNow Alerts - San Francisco Bay Area AQMD
Union City, CA Current AQI (PurpleAir Sensor)
Realtime PurpleAir Sensor Map
PurpleAir Sensor Map courtesy of PurpleAir.com
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Northern Section: Burn
Southern Section: Burn
Coastal Section: Burn -
Northern Section: Burn
Southern Section: Burn
Coastal Section: Burn
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Current Air Quality Index Map
0-50 | Good |
51-100 | Moderate |
101-150 | Unhealthy for Sensitive Groups |
151-200 | Unhealthy |
201-300 | Very Unhealthy |
301-500 | Hazardous |
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AQI and Pollutant Forecast for Wednesday by district.
North Counties - AQI: 32, Pollutant: OZONE.
Coast and Central Bay - AQI: 46, Pollutant: PM2.5.
Eastern District - AQI: 34, Pollutant: OZONE
South and Central Bay - AQI: 31, Pollutant: OZONE
Santa Clara Valley - AQI: 33, Pollutant: OZONE -
AQI and Pollutant Forecast for Thursday by district.
North Counties - AQI: 35, Pollutant: OZONE.
Coast and Central Bay - AQI: 42, Pollutant: PM2.5.
Eastern District - AQI: 37, Pollutant: OZONE
South and Central Bay - AQI: 34, Pollutant: OZONE
Santa Clara Valley - AQI: 36, Pollutant: OZONE -
AQI and Pollutant Forecast for Friday by district.
North Counties - AQI: Good, Pollutant: OZONE.
Coast and Central Bay - AQI: Good, Pollutant: PM2.5.
Eastern District - AQI: Good, Pollutant: OZONE
South and Central Bay - AQI: Good, Pollutant: OZONE
Santa Clara Valley - AQI: Good, Pollutant: OZONE -
AQI and Pollutant Forecast for Saturday by district.
North Counties - AQI: Good, Pollutant: OZONE.
Coast and Central Bay - AQI: Good, Pollutant: PM2.5.
Eastern District - AQI: Good, Pollutant: OZONE
South and Central Bay - AQI: Good, Pollutant: OZONE
Santa Clara Valley - AQI: Good, Pollutant: OZONE -
AQI and Pollutant Forecast for Sunday by district.
North Counties - AQI: Good, Pollutant: OZONE.
Coast and Central Bay - AQI: Good, Pollutant: PM2.5.
Eastern District - AQI: Good, Pollutant: OZONE
South and Central Bay - AQI: Good, Pollutant: OZONE
Santa Clara Valley - AQI: Good, Pollutant: OZONE