Worst air pollution San Francisco de los Romo, today and tomorrow
Today (16 July): Air quality in San Francisco de los Romo is fair. PM2.5 and O3 are fair; AQI and PM10 are medium; NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 3:00 AM (PM10: 41.1/100).
Tomorrow (17 July 2026): Air quality in San Francisco de los Romo is fair. AQI worsens to fair; PM10 increases to fair; O3 decreases to good; all other pollutants stay as today. Pollution peaks around 10:00 AM (PM10: 34.1/100). 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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San Francisco de los Romo's air quality reflects the flat Aguascalientes plateau at 1,850 metres, with vehicle traffic on surrounding roads and the manufacturing, agricultural, and residential character contributing local sources. The elevated plateau position aids dispersal on most days, while winter inversions create modest seasonal challenges and San Francisco de los Romo generally maintains moderate Mexican central plateau Aguascalientes corridor readings throughout most of the year.
Today - 16 July | Pollution peaks at 03:00
AQI:
Medium
41.1/100
PM2.5 (fine particles):
Fair
38.2/100
PM10 (coarse particles):
Medium
41.1/100
NO2 (nitrogen dioxide):
Good
0.2/100
O3 (ozone):
Fair
24.9/100
SO2 (sulfur dioxide):
Good
0.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.1/100
PM1 (ultrafine particles):
Good
5.2/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 10:00
AQI:
Fair
34.1/100
PM2.5 (fine particles):
Fair
25.3/100
PM10 (coarse particles):
Fair
34.1/100
NO2 (nitrogen dioxide):
Good
0.1/100
O3 (ozone):
Good
19.7/100
SO2 (sulfur dioxide):
Good
0.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.2/100
PM1 (ultrafine particles):
Good
4.0/100
Frequently Asked Questions
Is air quality bad in San Francisco de los Romo right now?
On 16 July 2026, overall air quality in San Francisco de los Romo is fair. PM2.5 is the main pollutant at 38.2/100. Pollution peaks around 3:00 AM (PM10: 41.1/100).
Will air quality be worse tomorrow in San Francisco de los Romo?
On 17 July 2026, air quality conditions in San Francisco de los Romo will be similar to today, with AQI forecast at fair at 34.1/100. Pollution peaks around 10:00 AM (PM10: 34.1/100).
When is air pollution at its worst in San Francisco de los Romo?
Pollution in San Francisco de los Romo typically rises when traffic emissions, manufacturing activity, along with farming and agricultural processing combine, especially once winds are light and dispersion is poor. Day-to-day conditions here depend heavily on the weather. Local weather patterns add further day-to-day variation.
Are air quality levels in San Francisco de los Romo 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