Worst air pollution Matamoros, today and tomorrow
Today (9 August): Air quality in Matamoros is very poor. AQI and PM10 are very poor; O3 is fair; PM2.5 is medium; NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 4:00 AM (PM10: 83.4/100).
Tomorrow (10 August 2026): Air quality in Matamoros is very poor. PM2.5 increases to poor; all other pollutants stay as today. Pollution peaks around 11:00 PM (PM10: 92.5/100). 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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Matamoros in Coahuila reflects the flat Coahuila Nazas River agricultural plain, with vehicle traffic on surrounding roads and the agricultural, cotton, and services corridor contributing local sources. The flat semi-arid Chihuahuan Desert terrain allows reasonable dispersal, while winter inversions create modest seasonal challenges and Matamoros generally maintains moderate northern Mexican Coahuila agricultural plain readings throughout most of the year.
Today - 9 August | Pollution peaks at 04:00
AQI:
Very poor
83.4/100
PM2.5 (fine particles):
Medium
56.3/100
PM10 (coarse particles):
Very poor
83.4/100
NO2 (nitrogen dioxide):
Good
0.3/100
O3 (ozone):
Fair
29.2/100
SO2 (sulfur dioxide):
Good
3.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.9/100
PM1 (ultrafine particles):
Good
11.4/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 23:00
AQI:
Very poor
92.5/100
PM2.5 (fine particles):
Poor
63.4/100
PM10 (coarse particles):
Very poor
92.5/100
NO2 (nitrogen dioxide):
Good
0.4/100
O3 (ozone):
Fair
30.4/100
SO2 (sulfur dioxide):
Good
10.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.0/100
PM1 (ultrafine particles):
Good
19.2/100
Frequently Asked Questions
Is air quality bad in Matamoros right now?
On 9 August 2026, overall air quality in Matamoros is very poor. AQI is the main air quality indicator at 83.4/100. Pollution peaks around 4:00 AM (PM10: 83.4/100).
Will air quality be worse tomorrow in Matamoros?
On 10 August 2026, air quality conditions in Matamoros will be similar to today, with AQI forecast at very poor at 92.5/100. Pollution peaks around 11:00 PM (PM10: 92.5/100).
When is air pollution at its worst in Matamoros?
Pollution in Matamoros typically rises when vehicle traffic and agricultural burning combine, especially once still air allows pollutants to build up. Background emissions and local weather both shape how conditions change from day to day. Conditions can otherwise vary considerably with the weather.
Are air quality levels in Matamoros 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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