Reported by World Air Quality Index 11 days ago.
It is the 14th strongest of the 31 detections recorded within 20 km of this point since 14 March 2026. Another comparable one was recorded here earlier the same day.
What the source measured
World Air Quality Index reported: AQI 169 (Unhealthy) at Kikish_Hut
The air quality index read 169 (Unhealthy) at the Kikish_Hut station.
Nearby, since 14 March 2026
- September 4, 2026 · score 50 · 9.4 km
- August 3, 2026 · score 35 · 12.7 km
How we know
Confirmed by 7 independent sources, including World Air Quality Index.
Our own score for this event is 14 out of 100, at 53 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Air Quality |
| Severity | Critical |
| Calamity Score (ours) | 14 / 100 |
| Our confidence | 53% |
| Coordinates | 42.6190, 23.2825 |
| Nearest City | Sofia (10 km) |
| Impact Tier | minor |
| Timestamp | 2026-08-23T08:36:55.000Z |
| Source | https://aqicn.org/city/@-576223 |
Score Breakdown
Technical Details
| Aqi | 169 |
| AqiCategory | Unhealthy |
| StationName | Kikish_Hut |
| StationUid | -576223 |
| Sensor Community Pm25Max | 999.9 |
| Sensor Community Pm25Avg | 999.9 |
| Sensor Community SensorCount | 1 |
| Sensor Community AqiCategory | Hazardous |
| Sensor Community ClusterKey | 42.9_23.4 |
| MergedSources | [{"id":"sensor_community_42.8_23.3","source":"sensor_community","severity":"critical","severityValue":85.4738,"timestamp":1787467111000,"latitude":42.804,"longitude":23.342},{"id":"sensor_community_42.7_23.3","source":"sensor_community","severity":"critical","severityValue":93.1628,"timestamp":1787467095000,"latitude":42.726,"longitude":23.342},{"id":"sensor_community_42.7_23.1","source":"sensor_community","severity":"medium","severityValue":40.3525,"timestamp":1787467102000,"latitude":42.686,"longitude":23.136},{"id":"sensor_community_42.7_23.2","source":"sensor_community","severity":"critical","severityValue":85.88419999999999,"timestamp":1787467159000,"latitude":42.678,"longitude":23.244},{"id":"sensor_community_42.6_23.3","source":"sensor_community","severity":"critical","severityValue":98.998,"timestamp":1787467077000,"latitude":42.642,"longitude":23.31},{"id":"sensor_community_42.9_23.4","source":"sensor_community","severity":"critical","severityValue":98.998,"timestamp":1787467072000,"latitude":42.864,"longitude":23.36}] |
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 Sofia?
Calamity.live data shows a air quality event with CalamityScore 14/100, near Sofia (Bulgaria), based on data from waqi. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.