Worst air pollution Zacatecas, today and tomorrow
Today (16 July): Air quality in Zacatecas is fair. PM2.5 and O3 are fair; AQI and PM10 are medium; NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 4:00 AM (PM10: 46.0/100).
Tomorrow (17 July 2026): Air quality in Zacatecas is fair. All pollutants stay as today. Pollution peaks around 8:00 AM (PM10: 40.8/100). Airmine updates local air quality forecasts four times daily.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Zacatecas's air quality reflects the historic silver mining highland's enclosed canyon at 2,496 metres, with vehicle traffic on surrounding roads and the silver mining legacy, government, and tourism corridor contributing local sources. The canyon's dramatic topographic enclosure creates concentration under inversions, while the elevated altitude worsens ozone formation and Zacatecas's extraordinary historic silver mining UNESCO colonial setting creates a distinctive local air quality environment throughout most of the year.
Today - 16 July | Pollution peaks at 04:00
AQI:
Medium
46.0/100
PM2.5 (fine particles):
Fair
37.6/100
PM10 (coarse particles):
Medium
46.0/100
NO2 (nitrogen dioxide):
Good
0.6/100
O3 (ozone):
Fair
26.1/100
SO2 (sulfur dioxide):
Good
5.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.9/100
PM1 (ultrafine particles):
Good
6.1/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 08:00
AQI:
Medium
40.8/100
PM2.5 (fine particles):
Fair
31.3/100
PM10 (coarse particles):
Medium
40.8/100
NO2 (nitrogen dioxide):
Good
0.3/100
O3 (ozone):
Fair
21.2/100
SO2 (sulfur dioxide):
Good
0.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.0/100
PM1 (ultrafine particles):
Good
4.9/100
Frequently Asked Questions
Is air quality bad in Zacatecas right now?
On 16 July 2026, overall air quality in Zacatecas is fair. PM2.5 is the main pollutant at 37.6/100. Pollution peaks around 4:00 AM (PM10: 46.0/100).
Will air quality be worse tomorrow in Zacatecas?
On 17 July 2026, air quality conditions in Zacatecas will be similar to today, with PM2.5 forecast at fair at 31.3/100. Pollution peaks around 8:00 AM (PM10: 40.8/100).
When is air pollution at its worst in Zacatecas?
Air quality in Zacatecas tends to be worse when traffic on the surrounding roads, mining operations, as well as tourism-related traffic build up and summer heat and strong sunlight build up. Heat and sunlight combine with emissions to form ozone at ground level. Cooler temperatures for the rest of the year keep this in check.
Are air quality levels in Zacatecas 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