Reported by World Air Quality Index 5 days ago.
It is the 6th strongest of the 20 detections recorded within 20 km of this point since 13 May 2026. The last comparable one was on 26 August 2026.
What the source measured
World Air Quality Index reported: AQI 165 (Unhealthy) at Diadema, São Paulo, Brazil
The air quality index read 165 (Unhealthy) at the Diadema, São Paulo, Brazil station.
An estimated 282,199 people live within 5 km of this point.
How we know
One source: World Air Quality Index. Not yet confirmed by a second, independent source.
Our own score for this event is 35 out of 100, at 62 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Air quality |
| Severity | medium |
| Calamity Score (ours) | 35 / 100 |
| Our confidence | 62% |
| Coordinates | -23.6859, -46.6116 |
| Nearest City | Diadema (1 km) |
| Population Exposed | 282.2K within 5 km |
| Impact Tier | significant |
| Timestamp | 2026-08-27T02:00:00.000Z |
| Source | https://aqicn.org/city/@342 |
Score Breakdown
Technical Details
| Aqi | 165 |
| AqiCategory | Unhealthy |
| StationName | Diadema, São Paulo, Brazil |
| StationUid | 342 |
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 10 February 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.
Calamity.live data shows a air quality event with CalamityScore 35/100, near Diadema (Brazil), based on data from waqi. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.