Worst air pollution Santiago del Estero, today and tomorrow
Today (16 July): Air quality in Santiago del Estero is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 9:00 PM (O3: 15.9/100).
Tomorrow (17 July 2026): Air quality in Santiago del Estero is good. All pollutants stay as today. Pollution peaks around 5:00 AM (O3: 16.0/100). 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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Santiago del Estero's air quality benefits from the flat Argentine Chaco Salado River plain providing generally good wind dispersal, with vehicle traffic on the Ruta 9 and surrounding agricultural, government, and services corridor contributing modest local sources. Consistent northerly Chaco winds and southwesterly Pampas winds provide reasonable dispersal, while agricultural burning from surrounding Chaco scrubland contributes seasonal PM2.5 and Santiago del Estero generally maintains among Argentina's more moderate interior provincial capital readings throughout most of the year.
Today - 16 July | Pollution peaks at 21:00
AQI:
Good
15.9/100
PM2.5 (fine particles):
Good
8.6/100
PM10 (coarse particles):
Good
3.9/100
NO2 (nitrogen dioxide):
Good
0.5/100
O3 (ozone):
Good
15.9/100
SO2 (sulfur dioxide):
Good
1.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.5/100
PM1 (ultrafine particles):
Good
1.9/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 05:00
AQI:
Good
16.0/100
PM2.5 (fine particles):
Good
8.7/100
PM10 (coarse particles):
Good
3.9/100
NO2 (nitrogen dioxide):
Good
0.4/100
O3 (ozone):
Good
16.0/100
SO2 (sulfur dioxide):
Good
1.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.5/100
PM1 (ultrafine particles):
Good
1.8/100
Pollen forecast in Santiago del Estero
View pollen forecastFrequently Asked Questions
Is air quality bad in Santiago del Estero right now?
On 16 July 2026, overall air quality in Santiago del Estero is good. AQI is the main air quality indicator at 15.9/100. Pollution peaks around 9:00 PM (O3: 15.9/100).
Will air quality be worse tomorrow in Santiago del Estero?
On 17 July 2026, air quality conditions in Santiago del Estero will be similar to today, with AQI forecast at good at 16.0/100. Pollution peaks around 5:00 AM (O3: 16.0/100).
When is air pollution at its worst in Santiago del Estero?
Santiago del Estero usually sees its poorest air quality when traffic emissions along with agricultural activity coincide with periods when still air allows pollutants to build up. Local weather patterns add further variation on top of these sources. Background emissions and local weather both play a role in day-to-day changes.
Are air quality levels in Santiago del Estero 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