Worst air pollution Santiago Tianguistenco, today and tomorrow
Today (16 July): Air quality in Santiago Tianguistenco 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: 57.6/100).
Tomorrow (17 July 2026): Air quality in Santiago Tianguistenco is medium. All pollutants stay as today. Pollution peaks around 4:00 AM (PM10: 58.6/100). 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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Santiago Tianguistenco's air quality reflects the flat Estado de México Lerma River valley at 2,690 metres adjacent to the Toluca Basin, with vehicle traffic on surrounding roads and the textile, manufacturing, and agricultural character contributing local sources. The Toluca Valley's topographic enclosure creates concentration under inversions, while the elevated altitude worsens ozone formation and the area generally maintains moderate to elevated Mexican highland valley readings throughout most of the year.
Today - 16 July | Pollution peaks at 05:00
AQI:
Medium
57.6/100
PM2.5 (fine particles):
Medium
48.6/100
PM10 (coarse particles):
Medium
57.6/100
NO2 (nitrogen dioxide):
Good
0.3/100
O3 (ozone):
Good
18.4/100
SO2 (sulfur dioxide):
Good
0.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.9/100
PM1 (ultrafine particles):
Good
10.8/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 04:00
AQI:
Medium
58.6/100
PM2.5 (fine particles):
Medium
44.5/100
PM10 (coarse particles):
Medium
58.6/100
NO2 (nitrogen dioxide):
Good
0.3/100
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
7.8/100
Frequently Asked Questions
Is air quality bad in Santiago Tianguistenco right now?
On 16 July 2026, overall air quality in Santiago Tianguistenco is medium. AQI is the main air quality indicator at 57.6/100. Pollution peaks around 5:00 AM (PM10: 57.6/100).
Will air quality be worse tomorrow in Santiago Tianguistenco?
On 17 July 2026, air quality conditions in Santiago Tianguistenco will be similar to today, with AQI forecast at medium at 58.6/100. Pollution peaks around 4:00 AM (PM10: 58.6/100).
When is air pollution at its worst in Santiago Tianguistenco?
Pollution in Santiago Tianguistenco typically rises when vehicle traffic, light manufacturing, together with agricultural activity combine, especially once the surrounding valley traps air close to the ground. The surrounding valley terrain holds pollutants near the surface rather than letting them disperse. Photochemical reactions in the heat push ozone levels higher.
Are air quality levels in Santiago Tianguistenco 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