Worst air pollution Ciudad Obregón, today and tomorrow
Today (9 August): Air quality in Ciudad Obregón is poor. AQI and PM10 are poor; O3 is fair; PM2.5 is medium; NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 3:00 PM (PM10: 70.3/100).
Tomorrow (10 August 2026): Air quality in Ciudad Obregón is poor. All pollutants stay as today. Pollution peaks around 4:00 PM (PM10: 80.0/100). 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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Ciudad Obregón's air quality reflects the flat Sonoran Desert Yaqui River valley at 38 metres, with vehicle traffic on surrounding roads and the agricultural processing — Ciudad Obregón being Mexico's wheat capital — and manufacturing corridor contributing local sources. Windblown Sonoran Desert dust contributes elevated PM10, while the flat desert plain allows reasonable dispersal and Ciudad Obregón generally maintains moderate northwestern Mexican desert agricultural plain readings throughout most of the year.
Today - 9 August | Pollution peaks at 15:00
AQI:
Poor
70.3/100
PM2.5 (fine particles):
Medium
49.1/100
PM10 (coarse particles):
Poor
70.3/100
NO2 (nitrogen dioxide):
Good
0.5/100
O3 (ozone):
Fair
27.0/100
SO2 (sulfur dioxide):
Good
8.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.9/100
PM1 (ultrafine particles):
Good
10.5/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 16:00
AQI:
Poor
80.0/100
PM2.5 (fine particles):
Medium
53.0/100
PM10 (coarse particles):
Poor
80.0/100
NO2 (nitrogen dioxide):
Good
0.4/100
O3 (ozone):
Fair
32.1/100
SO2 (sulfur dioxide):
Good
16.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.8/100
PM1 (ultrafine particles):
Good
14.4/100
Frequently Asked Questions
Is air quality bad in Ciudad Obregón right now?
On 9 August 2026, overall air quality in Ciudad Obregón is poor. AQI is the main air quality indicator at 70.3/100. Pollution peaks around 3:00 PM (PM10: 70.3/100).
Will air quality be worse tomorrow in Ciudad Obregón?
On 10 August 2026, air quality conditions in Ciudad Obregón will be similar to today, with AQI forecast at poor at 80.0/100. Pollution peaks around 4:00 PM (PM10: 80.0/100).
When is air pollution at its worst in Ciudad Obregón?
Pollution in Ciudad Obregón typically rises when vehicle traffic, manufacturing activity, and farming and agricultural processing combine, especially once windblown dust events occur. Dust carried on these winds adds substantially to particulate levels. These episodes tend to cluster in spring and autumn.
Are air quality levels in Ciudad Obregón 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.
Why doesn’t the forecast always reflect wildfire impacts?
Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.
During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.
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Data provided by Airmine — Last update: 9 August 2026 at 20:27 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.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
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