Right now
The most recent data we hold from World Air Quality Index arrived 72 minutes ago, and this point is in it.
4 other detections within 20 km in the last 24 hours, the nearest <1 km from here.
Reported by World Air Quality Index today.
It is the 13th strongest of the 258 detections recorded within 20 km of this point since 14 March 2026. Another comparable one was recorded here earlier the same day. 31 more were recorded here in the fortnight before it.
What the source measured
World Air Quality Index reported: AQI 156 (Unhealthy) at CHS 89 P1 c4bfe6
The air quality index read 156 (Unhealthy) at the CHS 89 P1 c4bfe6 station.
An estimated 50,441 people live within 5 km of this point.
Nearby, since 14 March 2026
- September 6, 2026 · score 46 · 0.0 km
- September 5, 2026 · score 46 · 0.0 km
- August 27, 2026 · score 31 · 0.0 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 46 out of 100, at 67 % 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) | 46 / 100 |
| Our confidence | 67% |
| Coordinates | -33.4882, -70.7347 |
| Nearest City | Maipú (4 km) |
| Population Exposed | 50.4K within 5 km |
| Impact Tier | significant |
| Timestamp | 2026-09-13T08:23:36.000Z |
| Source | https://aqicn.org/city/@-573832 |
Score Breakdown
Technical Details
| Aqi | 156 |
| AqiCategory | Unhealthy |
| StationName | CHS 89 P1 c4bfe6 |
| StationUid | -573832 |
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.
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