Worst air pollution Apaseo el Grande, today and tomorrow
Today (17 August): Air quality in Apaseo el Grande is fair. AQI, PM2.5, and PM10 are fair; NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 2:00 AM (PM2.5: 37.1/100).
Tomorrow (18 August 2026): Air quality in Apaseo el Grande is fair. AQI improves to medium; PM10 decreases to medium; all other pollutants stay as today. Pollution peaks around 7:00 AM (PM10: 40.3/100). 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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Apaseo el Grande's air quality reflects the flat Guanajuato Bajío plateau at 1,750 metres adjacent to Celaya, with vehicle traffic on surrounding roads and the automotive manufacturing — Apaseo hosting the Toyota Bajío plant — and agricultural corridor contributing elevated automotive industrial emissions. The elevated plateau position aids dispersal on most days, while winter inversions create modest seasonal challenges and the Toyota manufacturing operations represent the most distinctive local emission source throughout most of the year.
Today - 17 August | Pollution peaks at 02:00
AQI:
Fair
37.1/100
PM2.5 (fine particles):
Fair
37.1/100
PM10 (coarse particles):
Fair
31.1/100
NO2 (nitrogen dioxide):
Good
0.1/100
O3 (ozone):
Good
16.4/100
SO2 (sulfur dioxide):
Good
0.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.5/100
PM1 (ultrafine particles):
Good
5.8/100
Levels show the poorest local air quality during the day
Tomorrow - 18 August | Pollution peaks at 07:00
AQI:
Medium
40.3/100
PM2.5 (fine particles):
Fair
28.0/100
PM10 (coarse particles):
Medium
40.3/100
NO2 (nitrogen dioxide):
Good
0.1/100
O3 (ozone):
Good
15.8/100
SO2 (sulfur dioxide):
Good
0.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.8/100
PM1 (ultrafine particles):
Good
4.6/100
Frequently Asked Questions
Is air quality bad in Apaseo el Grande right now?
On 17 August 2026, overall air quality in Apaseo el Grande is fair. AQI is the main air quality indicator at 37.1/100. Pollution peaks around 2:00 AM (PM2.5: 37.1/100).
Will air quality be worse tomorrow in Apaseo el Grande?
On 18 August 2026, air quality conditions in Apaseo el Grande will be similar to today, with PM2.5 forecast at fair at 28.0/100. Pollution peaks around 7:00 AM (PM10: 40.3/100).
When is air pollution at its worst in Apaseo el Grande?
Pollution in Apaseo el Grande typically rises when traffic emissions, textile and manufacturing operations, as well as farming and agricultural processing combine, especially once windblown dust events occur. Strong seasonal winds can lift dust from the surrounding dry terrain and push particulate levels sharply higher. These episodes tend to cluster in spring and autumn.
Are air quality levels in Apaseo el Grande 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: 17 August 2026 at 14:32 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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