Worst air pollution Lo Barnechea, today and tomorrow
Today (16 July): Air quality in Lo Barnechea is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 7:00 PM (PM2.5: 15.3/100).
Tomorrow (17 July 2026): Air quality in Lo Barnechea is good. All pollutants stay as today. Pollution peaks around 8:00 AM (PM2.5: 17.2/100). 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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Lo Barnechea's air quality reflects the Santiago metropolitan area's northeastern precordillera corridor at 1,000 metres adjacent to the Andes ski resorts, with vehicle traffic on surrounding roads and the affluent residential and ski resort character contributing local sources under the Santiago basin's persistent temperature inversions. The elevated Andean foothills position provides marginally better dispersal than the flat valley floor, while the enclosed Central Valley's topographic trapping still influences the corridor and Lo Barnechea generally maintains moderate Santiago northeastern upscale corridor readings throughout most of the year.
Today - 16 July | Pollution peaks at 19:00
AQI:
Good
15.3/100
PM2.5 (fine particles):
Good
15.3/100
PM10 (coarse particles):
Good
7.1/100
NO2 (nitrogen dioxide):
Good
0.8/100
O3 (ozone):
Good
12.2/100
SO2 (sulfur dioxide):
Good
0.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.4/100
PM1 (ultrafine particles):
Good
2.8/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 08:00
AQI:
Good
17.2/100
PM2.5 (fine particles):
Good
17.2/100
PM10 (coarse particles):
Good
8.0/100
NO2 (nitrogen dioxide):
Good
0.8/100
O3 (ozone):
Good
16.7/100
SO2 (sulfur dioxide):
Good
0.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.4/100
PM1 (ultrafine particles):
Good
3.2/100
Frequently Asked Questions
Is air quality bad in Lo Barnechea right now?
On 16 July 2026, overall air quality in Lo Barnechea is good. AQI is the main air quality indicator at 15.3/100. Pollution peaks around 7:00 PM (PM2.5: 15.3/100).
Will air quality be worse tomorrow in Lo Barnechea?
On 17 July 2026, air quality conditions in Lo Barnechea will be similar to today, with AQI forecast at good at 17.2/100. Pollution peaks around 8:00 AM (PM2.5: 17.2/100).
When is air pollution at its worst in Lo Barnechea?
Lo Barnechea usually sees its poorest air quality when traffic emissions coincides with periods when temperature inversions set in over the valley. The surrounding valley terrain holds pollutants near the surface rather than letting them disperse. This is most pronounced in winter, when inversions are more frequent.
Are air quality levels in Lo Barnechea 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