Worst air pollution Guadalupe, today and tomorrow
Today (20 September): Air quality in Guadalupe is very poor. AQI and PM10 are very poor; PM2.5 is poor; NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 7:00 AM (PM10: 100/100).
Tomorrow (21 September 2026): Air quality in Guadalupe is very poor. PM1 increases to fair; all other pollutants stay as today. Pollution peaks around 4:00 AM (PM10: 100/100). 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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Guadalupe in Nuevo León reflects the greater Monterrey metropolitan area's eastern suburban corridor in the Monterrey basin, with vehicle traffic on surrounding expressways and the manufacturing, residential, and commercial character contributing local sources. The Sierra Madre Oriental's dramatic mountain enclosure creates severe topographic concentration under winter inversions, while the Monterrey metropolitan industrial background maintains moderate to elevated northeastern Mexican mountain basin readings throughout most of the year.
Today - 20 September | Pollution peaks at 07:00
AQI:
Very poor
100/100
PM2.5 (fine particles):
Poor
62.8/100
PM10 (coarse particles):
Very poor
100/100
NO2 (nitrogen dioxide):
Good
1.3/100
O3 (ozone):
Good
16.5/100
SO2 (sulfur dioxide):
Good
0.1/100
CO (carbon monoxide):
Good
0.4/100
HCHO (formaldehyde):
Good
0.9/100
PM1 (ultrafine particles):
Good
17.2/100
Levels show the poorest local air quality during the day
Tomorrow - 21 September | Pollution peaks at 04:00
AQI:
Very poor
100/100
PM2.5 (fine particles):
Poor
72.7/100
PM10 (coarse particles):
Very poor
100/100
NO2 (nitrogen dioxide):
Good
1.5/100
O3 (ozone):
Good
17.2/100
SO2 (sulfur dioxide):
Good
0.2/100
CO (carbon monoxide):
Good
0.4/100
HCHO (formaldehyde):
Good
1.0/100
PM1 (ultrafine particles):
Fair
23.9/100
Frequently Asked Questions
Is air quality bad in Guadalupe right now?
On 20 September 2026, overall air quality in Guadalupe is very poor. AQI is the main air quality indicator at 100/100. Pollution peaks around 7:00 AM (PM10: 100/100).
Will air quality be worse tomorrow in Guadalupe?
On 21 September 2026, air quality conditions in Guadalupe will be similar to today, with AQI forecast at very poor at 100/100. Pollution peaks around 4:00 AM (PM10: 100/100).
When is air pollution at its worst in Guadalupe?
In Guadalupe, traffic on the surrounding roads together with manufacturing and food processing are the main local sources, with conditions worsening when the surrounding valley traps air close to the ground. 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 Guadalupe 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: 21 September 2026 at 03:04 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.
Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.
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