Worst air pollution Ciudad Santa Catarina, today and tomorrow
Today (16 July): Air quality in Ciudad Santa Catarina 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 Ciudad Santa Catarina is very poor. All pollutants stay as today. Pollution peaks around 12:00 AM (PM10: 88.0/100). 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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Ciudad Santa Catarina's air quality reflects the greater Monterrey metropolitan area's western industrial corridor in the Sierra Madre Oriental basin, with vehicle traffic on surrounding roads and the glass, automotive, and industrial character generating elevated industrial PM2.5 alongside vehicle sources. The extraordinary mountain enclosure creates severe winter inversions, while the Monterrey metropolitan industrial background and VITRO glass industrial operations maintain moderate to elevated northeastern Mexican mountain basin industrial readings throughout most of the year.
Today - 16 July | Pollution peaks at 21:00
AQI:
Very poor
100/100
PM2.5 (fine particles):
Poor
69.5/100
PM10 (coarse particles):
Very poor
100/100
NO2 (nitrogen dioxide):
Good
0.2/100
O3 (ozone):
Fair
28.6/100
SO2 (sulfur dioxide):
Good
0.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.8/100
PM1 (ultrafine particles):
Good
17.6/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 00:00
AQI:
Very poor
88.0/100
PM2.5 (fine particles):
Poor
61.5/100
PM10 (coarse particles):
Very poor
88.0/100
NO2 (nitrogen dioxide):
Good
0.1/100
O3 (ozone):
Fair
26.0/100
SO2 (sulfur dioxide):
Good
0.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.8/100
PM1 (ultrafine particles):
Good
14.0/100
Frequently Asked Questions
Is air quality bad in Ciudad Santa Catarina right now?
On 16 July 2026, overall air quality in Ciudad Santa Catarina 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 Ciudad Santa Catarina?
On 17 July 2026, air quality conditions in Ciudad Santa Catarina will be similar to today, with AQI forecast at very poor at 88.0/100. Pollution peaks around 12:00 AM (PM10: 88.0/100).
When is air pollution at its worst in Ciudad Santa Catarina?
Ciudad Santa Catarina usually sees its poorest air quality when traffic on the surrounding roads along with steel, cement, and chemical production coincide with periods when the surrounding valley traps air close to the ground. The bowl-like terrain here limits how quickly pollutants can escape. These wind events can carry dust in from the surrounding arid landscape.
Are air quality levels in Ciudad Santa Catarina 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