Right now
The most recent data we hold from World Air Quality Index arrived 78 minutes ago, and this point is in it.
One other detection within 20 km in the last 24 hours, 7 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 23 May 2026. Another comparable one was recorded here earlier the same day.
What the source measured
World Air Quality Index reported: AQI 154 (Unhealthy) at Changde (常德)
The air quality index read 154 (Unhealthy) at the Changde (常德) station.
An estimated 1,013,365 people live within 5 km of this point.
At this point we have recorded a air quality index between 151 and 164, over 17 readings since 6 September 2026. Today's reading sits 23% of the way up that range.
How we know
One source: World Air Quality Index. Not yet confirmed by a second, independent source.
Our own score for this event is 59 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) | 59 / 100 |
| Our confidence | 64% |
| Coordinates | 29.0317, 111.6985 |
| Nearest City | Changde (0 km) |
| Population Exposed | 1.0M within 5 km |
| Impact Tier | significant |
| Timestamp | 2026-09-06T21:00:00.000Z |
| Source | https://aqicn.org/city/@1536 |
Score Breakdown
Technical Details
| Aqi | 154 |
| AqiCategory | Unhealthy |
| StationName | Changde (常德) |
| StationUid | 1536 |
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 Changde?
Calamity.live data shows a air quality event with CalamityScore 59/100, near Changde (China), based on data from waqi. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.