Right now
The most recent data we hold from World Air Quality Index arrived 2 hours ago, and this point is in it.
One other detection within 20 km in the last 24 hours, <1 km from here.
Reported by World Air Quality Index today.
No stronger detection stands among the 5 recorded within 20 km of this point since 16 August 2026 — 2 others scored the same. The last comparable one was on 9 September 2026. 3 more were recorded here in the fortnight before it.
What the source measured
World Air Quality Index reported: AQI 489 (Hazardous) at Bangladesh Red Crescent Society
The air quality index read 489 (Hazardous) at the Bangladesh Red Crescent Society station.
An estimated 134,406 people live within 5 km of this point.
Nearby, since 16 August 2026
- September 9, 2026 · score 50 · 0.0 km
- September 6, 2026 · score 64 · 0.0 km
- September 5, 2026 · score 64 · 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 64 out of 100, at 63 % 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 | Critical |
| Calamity Score (ours) | 64 / 100 |
| Our confidence | 63% |
| Coordinates | 24.8883, 91.8673 |
| Nearest City | Sylhet (1 km) |
| Population Exposed | 134.4K within 5 km |
| Impact Tier | severe |
| Timestamp | 2026-09-10T10:00:00.000Z |
| Source | https://aqicn.org/city/@-538636 |
Score Breakdown
Technical Details
| Aqi | 489 |
| AqiCategory | Hazardous |
| StationName | Bangladesh Red Crescent Society |
| StationUid | -538636 |
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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