Worst air pollution Pleasanton, today and tomorrow
Today (15 July): Air quality in Pleasanton is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 8:00 AM (O3: 39.4/100).
Tomorrow (16 July 2026): Air quality in Pleasanton is fair. AQI improves to medium; PM2.5 increases to fair; O3 decreases to medium; all other pollutants stay as today. Pollution peaks around 10:00 AM (O3: 41.0/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Pleasanton's air quality reflects the Amador Valley's partial topographic enclosure in the Tri-Valley area of the East Bay, with vehicle emissions from I-580 the primary local source. The Altamont Pass Delta breeze provides afternoon ventilation on most summer days, while summer wildfire smoke from surrounding East Bay hills and the Mount Diablo range is an increasingly frequent seasonal concern and the valley's topographic variation creates periodic morning inversion episodes.
Today - 15 July | Pollution peaks at 08:00
AQI:
Fair
39.4/100
PM2.5 (fine particles):
Good
14.8/100
PM10 (coarse particles):
Good
9.1/100
NO2 (nitrogen dioxide):
Good
6.7/100
O3 (ozone):
Fair
39.4/100
SO2 (sulfur dioxide):
Good
2.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.2/100
PM1 (ultrafine particles):
Good
8.1/100
Levels show the poorest local air quality during the day
Tomorrow - 16 July | Pollution peaks at 10:00
AQI:
Medium
41.0/100
PM2.5 (fine particles):
Fair
20.5/100
PM10 (coarse particles):
Good
10.0/100
NO2 (nitrogen dioxide):
Good
14.4/100
O3 (ozone):
Medium
41.0/100
SO2 (sulfur dioxide):
Good
2.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.9/100
PM1 (ultrafine particles):
Good
13.6/100
Pollen forecast in Pleasanton
View pollen forecastFrequently Asked Questions
Is air quality bad in Pleasanton right now?
On 15 July 2026, overall air quality in Pleasanton is fair. AQI is the main air quality indicator at 39.4/100. Pollution peaks around 8:00 AM (O3: 39.4/100).
Will air quality be worse tomorrow in Pleasanton?
On 16 July 2026, air quality conditions in Pleasanton will be similar to today, with PM2.5 forecast at fair at 20.5/100. Pollution peaks around 10:00 AM (O3: 41.0/100).
When is air pollution at its worst in Pleasanton?
Air quality across Pleasanton rises and falls with the seasons — the shortest stretch of clean air usually falls in the wetter winter months, whereas summer and early autumn bring the highest ozone levels, and wildfire smoke can spike particulate readings sharply from August through October. Coastal breezes offer some relief compared to inland valley locations that see heavier smog buildup.
Are air quality levels in Pleasanton based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
For long term forecasts and maps, see the Airmine app