Air Quality near São Leopoldo
Right now
The most recent data we hold from World Air Quality Index arrived 15 minutes ago, and this point is in it.
One other detection within 20 km in the last 24 hours, 16 km from here.
Reported by World Air Quality Index today.
It is the strongest of the 5 detections recorded within 20 km of this point since 21 April 2026. Another comparable one was recorded here earlier the same day.
What the source measured
World Air Quality Index reported: AQI 159 (Unhealthy) at Rua São Paulo
The air quality index read 159 (Unhealthy) at the Rua São Paulo station.
An estimated 126,305 people live within 5 km of this point.
Nearby, since 21 April 2026
- September 9, 2026 · score 44 · 16.1 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 50 out of 100, at 66 % 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) | 50 / 100 |
| Our confidence | 66% |
| Coordinates | -29.7677, -51.1420 |
| Nearest City | São Leopoldo (1 km) |
| Population Exposed | 126.3K within 5 km |
| Impact Tier | significant |
| Timestamp | 2026-09-09T11:22:27.000Z |
| Source | https://aqicn.org/city/@-217654 |
Score Breakdown
Technical Details
| Aqi | 159 |
| AqiCategory | Unhealthy |
| StationName | Rua São Paulo |
| StationUid | -217654 |
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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