Worst air pollution Santa Cruz Xoxocotlán, today and tomorrow
Today (9 August): Air quality in Santa Cruz Xoxocotlán is fair. AQI, PM2.5, PM10, and O3 are fair; NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 7:00 AM (PM10: 37.2/100).
Tomorrow (10 August 2026): Air quality in Santa Cruz Xoxocotlán is fair. AQI improves to medium; PM10 decreases to medium; all other pollutants stay as today. Pollution peaks around 4:00 AM (PM10: 46.5/100). 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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Santa Cruz Xoxocotlán's air quality reflects the Oaxaca Valley's enclosed basin at 1,533 metres adjacent to Oaxaca International Airport, with vehicle traffic on surrounding roads and the airport operations and urban residential character contributing local sources. The Sierra Madre del Sur creates significant topographic enclosure, while winter inversions in the enclosed highland valley and the aviation emissions represent the most distinctive local emission sources and Xoxocotlán generally maintains moderate Mexican southern highland valley metropolitan readings throughout most of the year.
Today - 9 August | Pollution peaks at 07:00
AQI:
Fair
37.2/100
PM2.5 (fine particles):
Fair
23.4/100
PM10 (coarse particles):
Fair
37.2/100
NO2 (nitrogen dioxide):
Good
2.4/100
O3 (ozone):
Fair
21.5/100
SO2 (sulfur dioxide):
Good
1.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.6/100
PM1 (ultrafine particles):
Good
6.4/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 04:00
AQI:
Medium
46.5/100
PM2.5 (fine particles):
Fair
38.0/100
PM10 (coarse particles):
Medium
46.5/100
NO2 (nitrogen dioxide):
Good
2.5/100
O3 (ozone):
Fair
20.8/100
SO2 (sulfur dioxide):
Good
1.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.9/100
PM1 (ultrafine particles):
Good
8.2/100
Frequently Asked Questions
Is air quality bad in Santa Cruz Xoxocotlán right now?
On 9 August 2026, overall air quality in Santa Cruz Xoxocotlán is fair. AQI is the main air quality indicator at 37.2/100. Pollution peaks around 7:00 AM (PM10: 37.2/100).
Will air quality be worse tomorrow in Santa Cruz Xoxocotlán?
On 10 August 2026, air quality conditions in Santa Cruz Xoxocotlán will be similar to today, with PM2.5 forecast at fair at 38.0/100. Pollution peaks around 4:00 AM (PM10: 46.5/100).
When is air pollution at its worst in Santa Cruz Xoxocotlán?
Santa Cruz Xoxocotlán usually sees its poorest air quality when vehicle traffic, aviation activity from the nearby airport, and fishing fleet activity coincide with periods when temperature inversions set in over the valley. The bowl-like terrain here limits how quickly pollutants can escape. This tends to happen most in winter, when inversions are most common.
Are air quality levels in Santa Cruz Xoxocotlán 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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