Reported by World Air Quality Index today.
It is the 6th strongest of the 11 detections recorded within 20 km of this point since 4 April 2026. Another comparable one was recorded here earlier the same day.
What the source measured
World Air Quality Index reported: AQI 154 (Unhealthy) at Daishan Park, Changchun (长春岱山公园)
The air quality index read 154 (Unhealthy) at the Daishan Park, Changchun (长春岱山公园) station.
At this point we have recorded a air quality index between 153 and 159, over 23 readings since 3 September 2026. Today's reading sits 17% of the way up that range.
Nearby, since 4 April 2026
- September 3, 2026 · score 55 · 12.2 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 29 out of 100, at 45 % 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) | 29 / 100 |
| Our confidence | 45% |
| Coordinates | 43.8500, 125.2170 |
| Nearest City | Changchun (9 km) |
| Impact Tier | minor |
| Timestamp | 2026-09-03T20:00:00.000Z |
| Source | https://aqicn.org/city/@1277 |
Score Breakdown
Technical Details
| Aqi | 154 |
| AqiCategory | Unhealthy |
| StationName | Daishan Park, Changchun (长春岱山公园) |
| StationUid | 1277 |
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 Changchun?
Calamity.live data shows a air quality event with CalamityScore 29/100, near Changchun (China), based on data from waqi. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.