Worst air pollution Peñalolén, today and tomorrow
Today (16 July): Air quality in Peñalolén is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 10:00 PM (O3: 12.1/100).
Tomorrow (17 July 2026): Air quality in Peñalolén is good. All pollutants stay as today. Pollution peaks around 11:00 PM (O3: 16.9/100). Airmine updates local air quality forecasts four times daily.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Use our Strava plugin to check your own exposure.
Peñalolén's air quality reflects the Santiago metropolitan area's eastern precordillera corridor at 900 metres adjacent to the Andes foothills, with vehicle traffic on surrounding roads and the mixed residential character contributing local sources under the Santiago basin's persistent temperature inversions. The elevated foothills position provides marginally better dispersal than the flat valley floor, while the enclosed Central Valley's topographic trapping still affects the corridor and Peñalolén generally maintains moderate Santiago metropolitan readings.
Today - 16 July | Pollution peaks at 22:00
AQI:
Good
12.1/100
PM2.5 (fine particles):
Good
8.4/100
PM10 (coarse particles):
Good
3.9/100
NO2 (nitrogen dioxide):
Good
0.2/100
O3 (ozone):
Good
12.1/100
SO2 (sulfur dioxide):
Good
0.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.4/100
PM1 (ultrafine particles):
Good
1.5/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 23:00
AQI:
Good
16.9/100
PM2.5 (fine particles):
Good
9.1/100
PM10 (coarse particles):
Good
4.2/100
NO2 (nitrogen dioxide):
Good
0.2/100
O3 (ozone):
Good
16.9/100
SO2 (sulfur dioxide):
Good
0.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.3/100
PM1 (ultrafine particles):
Good
1.7/100
Frequently Asked Questions
Is air quality bad in Peñalolén right now?
On 16 July 2026, overall air quality in Peñalolén is good. AQI is the main air quality indicator at 12.1/100. Pollution peaks around 10:00 PM (O3: 12.1/100).
Will air quality be worse tomorrow in Peñalolén?
On 17 July 2026, air quality conditions in Peñalolén will be similar to today, with AQI forecast at good at 16.9/100. Pollution peaks around 11:00 PM (O3: 16.9/100).
When is air pollution at its worst in Peñalolén?
Air quality in Peñalolén tends to be worse when traffic emissions and temperature inversions set in over the valley. Topographic enclosure in the valley lets pollution accumulate rather than clear out. This is most pronounced in winter, when inversions are more frequent.
Are air quality levels in Peñalolén 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.
Check air quality in other popular cities:
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