Worst air pollution Cadereyta Jiménez, today and tomorrow
Today (16 July): Air quality in Cadereyta Jiménez is very poor. AQI and PM10 are very poor; PM2.5 is poor; O3 is fair; NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 9:00 PM (PM10: 100/100).
Tomorrow (17 July 2026): Air quality in Cadereyta Jiménez is very poor. All pollutants stay as today. Pollution peaks around 12:00 AM (PM10: 91.3/100). 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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Cadereyta Jiménez's air quality reflects the greater Monterrey metropolitan area's eastern industrial corridor in the Sierra Madre Oriental basin adjacent to the PEMEX Cadereyta refinery, with vehicle traffic on surrounding roads and the petroleum refinery generating elevated industrial SO₂ and VOCs alongside vehicle sources. The extraordinary mountain enclosure creates severe winter inversions, while the PEMEX refinery's industrial scale and the Monterrey metropolitan industrial background make Cadereyta Mexico's most distinctively petroleum refinery-defined mountain basin urban environment.
Today - 16 July | Pollution peaks at 21:00
AQI:
Very poor
100/100
PM2.5 (fine particles):
Poor
71.5/100
PM10 (coarse particles):
Very poor
100/100
NO2 (nitrogen dioxide):
Good
0.3/100
O3 (ozone):
Fair
28.6/100
SO2 (sulfur dioxide):
Good
0.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.8/100
PM1 (ultrafine particles):
Good
18.5/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 00:00
AQI:
Very poor
91.3/100
PM2.5 (fine particles):
Poor
63.0/100
PM10 (coarse particles):
Very poor
91.3/100
NO2 (nitrogen dioxide):
Good
0.1/100
O3 (ozone):
Fair
26.0/100
SO2 (sulfur dioxide):
Good
0.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.8/100
PM1 (ultrafine particles):
Good
14.8/100
Frequently Asked Questions
Is air quality bad in Cadereyta Jiménez right now?
On 16 July 2026, overall air quality in Cadereyta Jiménez is very poor. AQI is the main air quality indicator at 100/100. Pollution peaks around 9:00 PM (PM10: 100/100).
Will air quality be worse tomorrow in Cadereyta Jiménez?
On 17 July 2026, air quality conditions in Cadereyta Jiménez will be similar to today, with AQI forecast at very poor at 91.3/100. Pollution peaks around 12:00 AM (PM10: 91.3/100).
When is air pollution at its worst in Cadereyta Jiménez?
Cadereyta Jiménez usually sees its poorest air quality when road traffic and heavy industry such as steel, cement, or petrochemical processing coincide with periods when the surrounding valley traps air close to the ground. The bowl-like terrain here limits how quickly pollutants can escape. Strong seasonal winds can lift dust from the surrounding dry terrain and push particulate levels sharply higher.
Are air quality levels in Cadereyta Jiménez 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