Worst air pollution San Mateo Atenco, today and tomorrow
Today (16 July): Air quality in San Mateo Atenco is medium. AQI, PM2.5, and PM10 are medium; NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 5:00 AM (PM10: 56.5/100).
Tomorrow (17 July 2026): Air quality in San Mateo Atenco is medium. All pollutants stay as today. Pollution peaks around 4:00 AM (PM10: 57.4/100). 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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San Mateo Atenco's air quality reflects the flat Estado de México Lerma River valley at 2,585 metres adjacent to Toluca, with vehicle traffic on surrounding roads and the footwear manufacturing, leather, and services corridor contributing elevated chemical and tanning VOC emissions. The Toluca Valley's topographic enclosure creates concentration under inversions, while the footwear industry's distinctive leather and dye emissions represent the most locally unique air quality contribution throughout most of the year.
Today - 16 July | Pollution peaks at 05:00
AQI:
Medium
56.5/100
PM2.5 (fine particles):
Medium
48.0/100
PM10 (coarse particles):
Medium
56.5/100
NO2 (nitrogen dioxide):
Good
0.3/100
O3 (ozone):
Good
18.4/100
SO2 (sulfur dioxide):
Good
0.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.9/100
PM1 (ultrafine particles):
Good
10.4/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 04:00
AQI:
Medium
57.4/100
PM2.5 (fine particles):
Medium
44.0/100
PM10 (coarse particles):
Medium
57.4/100
NO2 (nitrogen dioxide):
Good
0.2/100
O3 (ozone):
Good
18.8/100
SO2 (sulfur dioxide):
Good
0.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.9/100
PM1 (ultrafine particles):
Good
7.5/100
Frequently Asked Questions
Is air quality bad in San Mateo Atenco right now?
On 16 July 2026, overall air quality in San Mateo Atenco is medium. AQI is the main air quality indicator at 56.5/100. Pollution peaks around 5:00 AM (PM10: 56.5/100).
Will air quality be worse tomorrow in San Mateo Atenco?
On 17 July 2026, air quality conditions in San Mateo Atenco will be similar to today, with AQI forecast at medium at 57.4/100. Pollution peaks around 4:00 AM (PM10: 57.4/100).
When is air pollution at its worst in San Mateo Atenco?
Air quality in San Mateo Atenco tends to be worse when vehicle traffic, steel, cement, and chemical production, as well as textile and manufacturing operations build up and temperature inversions set in over the valley. The surrounding valley terrain holds pollutants near the surface rather than letting them disperse. Dust carried on these winds adds substantially to particulate levels.
Are air quality levels in San Mateo Atenco 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