Right now
The most recent data we hold from World Air Quality Index arrived 6 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
3 other detections within 20 km in the last 24 hours, the nearest 7 km from here.
Reported by World Air Quality Index today.
It is the 6th strongest of the 92 detections recorded within 20 km of this point since 9 March 2026. Another comparable one was recorded here earlier the same day.
What the source measured
World Air Quality Index reported: AQI 183 (Unhealthy) at Birongo Square Nairobi West
The air quality index read 183 (Unhealthy) at the Birongo Square Nairobi West station.
An estimated 875,579 people live within 5 km of this point.
Nearby, since 9 March 2026
- September 2, 2026 · score 55 · 2.1 km
- September 3, 2026 · score 59 · 3.4 km
- September 4, 2026 · score 66 · 4.8 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 55 out of 100, at 64 % 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) | 55 / 100 |
| Our confidence | 64% |
| Coordinates | -1.3091, 36.8187 |
| Nearest City | Nairobi (3 km) |
| Population Exposed | 875.6K within 5 km |
| Impact Tier | significant |
| Timestamp | 2026-09-05T21:00:00.000Z |
| Source | https://aqicn.org/city/@-559903 |
Score Breakdown
Technical Details
| Aqi | 183 |
| AqiCategory | Unhealthy |
| StationName | Birongo Square Nairobi West |
| StationUid | -559903 |
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 Nairobi?
Calamity.live data shows a air quality event with CalamityScore 55/100, near Nairobi (Kenya), based on data from waqi. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.