Reported by World Air Quality Index today.
It is the 4th strongest of the 6 detections recorded within 20 km of this point since 23 August 2026. The last comparable one was on 2 September 2026.
What the source measured
World Air Quality Index reported: AQI 158 (Unhealthy) at Alerce, Chile
The air quality index read 158 (Unhealthy) at the Alerce, Chile station.
Nearby, since 23 August 2026
- August 27, 2026 · score 14 · 0.0 km
- September 2, 2026 · score 41 · 9.7 km
- September 2, 2026 · score 46 · 10.6 km
How we know
One source: World Air Quality Index. Not yet confirmed by a second, independent source.
Our own score for this event is 29 out of 100, at 46 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v4. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Air Quality |
| Severity | Medium |
| Calamity Score (ours) | 29 / 100 |
| Our confidence | 46% |
| Coordinates | -41.3992, -72.8995 |
| Nearest City | Puerto Montt (9 km) |
| Impact Tier | minor |
| Timestamp | 2026-09-03T11:00:00.000Z |
| Source | https://aqicn.org/city/@10697 |
Score Breakdown
Technical Details
| Aqi | 158 |
| AqiCategory | Unhealthy |
| StationName | Alerce, Chile |
| StationUid | 10697 |
Safety Information
When air quality is hazardous: stay indoors with windows closed, and run a filtered air purifier if you have one. Avoid outdoor exercise. Children, older adults and anyone with heart or lung conditions are affected first and worst — an N95 respirator helps outdoors, a cloth mask does not.
Series begins 8 March 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.
This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.
Want to know when something happens near Puerto Montt?
Calamity.live data shows a air quality event with CalamityScore 29/100, near Puerto Montt (Chile), based on data from waqi. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.