Worst air pollution Dunbar Spring - Tucson, today and tomorrow
Today (15 July): Air quality in Dunbar Spring is fair. AQI, PM10, and O3 are fair; PM2.5, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 7:00 AM (PM10: 27.2/100).
Tomorrow (16 July 2026): Air quality in Dunbar Spring is fair. PM10 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.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Tucson's Dunbar Spring air quality reflects the historic near North Side neighbourhood, with vehicle traffic on the surrounding residential corridors contributing modest local sources. The neighbourhood's community garden character and the tree-lined residential streets provide natural filtration, while the Sonoran Desert basin creates periodic temperature inversions and Dunbar Spring generally maintains moderate Tucson metropolitan readings throughout most of the year.
Today - 15 July | Pollution peaks at 07:00
AQI:
Fair
27.2/100
PM2.5 (fine particles):
Good
17.0/100
PM10 (coarse particles):
Fair
27.2/100
NO2 (nitrogen dioxide):
Good
0.3/100
O3 (ozone):
Fair
27.1/100
SO2 (sulfur dioxide):
Good
0.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.9/100
PM1 (ultrafine particles):
Good
3.1/100
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
10.1/100
PM10 (coarse particles):
Good
16.2/100
NO2 (nitrogen dioxide):
Good
0.3/100
O3 (ozone):
Fair
27.5/100
SO2 (sulfur dioxide):
Good
1.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.9/100
PM1 (ultrafine particles):
Good
2.4/100
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Frequently Asked Questions
Is air quality bad in Dunbar Spring right now?
On 15 July 2026, overall air quality in Dunbar Spring is fair. AQI is the main air quality indicator at 27.2/100. Pollution peaks around 7:00 AM (PM10: 27.2/100).
Will air quality be worse tomorrow in Dunbar Spring?
On 16 July 2026, air quality conditions in Dunbar Spring 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 Dunbar Spring?
This neighborhood in Tucson sees air quality shift through the year, as winter typically brings a welcome break from both heat-driven ozone and blowing dust; by contrast, intense summer heat combines with occasional dust events to create the year's worst episodes. Sudden haboob-style dust storms can appear with little warning during the spring wind season.
Are air quality levels in Dunbar Spring 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