Worst air pollution El Presidio - Tucson, today and tomorrow
Today (15 July): Air quality in El Presidio is fair. AQI, PM2.5, PM10, and O3 are fair; NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 7:00 AM (PM10: 38.8/100).
Tomorrow (16 July 2026): Air quality in El Presidio is fair. PM2.5 decreases to good; all other pollutants stay as today. Pollution peaks around 9:00 AM (O3: 27.5/100). 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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Tucson's El Presidio air quality reflects the historic downtown preservation district, with vehicle traffic on Alameda Street and the surrounding mixed government and arts character contributing local sources. The El Presidio Park's greenspace provides limited local buffering, while the Sonoran Desert basin creates periodic temperature inversions and the historic district's low-density character generally maintains moderate Tucson downtown metropolitan readings throughout most of the year.
Today - 15 July | Pollution peaks at 07:00
AQI:
Fair
38.8/100
PM2.5 (fine particles):
Fair
25.0/100
PM10 (coarse particles):
Fair
38.8/100
NO2 (nitrogen dioxide):
Good
1.4/100
O3 (ozone):
Fair
27.1/100
SO2 (sulfur dioxide):
Good
4.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.9/100
PM1 (ultrafine particles):
Good
4.6/100
Levels show the poorest local air quality during the day
Tomorrow - 16 July | Pollution peaks at 09:00
AQI:
Fair
27.5/100
PM2.5 (fine particles):
Good
15.3/100
PM10 (coarse particles):
Fair
23.5/100
NO2 (nitrogen dioxide):
Good
1.8/100
O3 (ozone):
Fair
27.5/100
SO2 (sulfur dioxide):
Good
5.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.9/100
PM1 (ultrafine particles):
Good
3.7/100
Other Landmarks in Tucson
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Frequently Asked Questions
Is air quality bad in El Presidio right now?
On 15 July 2026, overall air quality in El Presidio is fair. AQI is the main air quality indicator at 38.8/100. Pollution peaks around 7:00 AM (PM10: 38.8/100).
Will air quality be worse tomorrow in El Presidio?
On 16 July 2026, air quality conditions in El Presidio will be similar to today, with AQI forecast at fair at 27.5/100. Pollution peaks around 9:00 AM (O3: 27.5/100).
When is air pollution at its worst in El Presidio?
El Presidio experiences the same seasonal air quality swings as the rest of Tucson, as the cooler winter months typically bring the cleanest air of the year; by contrast, spring winds can kick up sudden dust storms that spike particulate levels sharply for a day or two. Sudden haboob-style dust storms can appear with little warning during the spring wind season.
Are air quality levels in El Presidio 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