Reported by World Air Quality Index today.
It is one of only 3 we have recorded within 20 km of this point since 8 July 2026. The last comparable one was on 15 August 2026.
What the source measured
World Air Quality Index reported: AQI 151 (Unhealthy) at Yucheng Development Zone, Tancheng County (郯城县郯城开发区)
The air quality index read 151 (Unhealthy) at the Yucheng Development Zone, Tancheng County (郯城县郯城开发区) station.
This is the lowest air quality index we have recorded at this point, over 12 readings since 4 September 2026 — the previous range was 151 to 171.
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 | 34.6402, 118.3137 |
| Nearest City | Gangshang (22 km) |
| Impact Tier | minor |
| Timestamp | 2026-09-04T21:00:00.000Z |
| Source | https://aqicn.org/city/@10344 |
Score Breakdown
Technical Details
| Aqi | 151 |
| AqiCategory | Unhealthy |
| StationName | Yucheng Development Zone, Tancheng County (郯城县郯城开发区) |
| StationUid | 10344 |
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 Gangshang?
Calamity.live data shows a air quality event with CalamityScore 29/100, near Gangshang (China), based on data from waqi. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.