Right now
The most recent data we hold from World Air Quality Index arrived 2 hours ago, and this point is in it.
Nothing else has been detected within 20 km in the last 24 hours.
Reported by World Air Quality Index today.
It is one of only 4 we have recorded within 20 km of this point since 29 June 2026. The last comparable one was on 7 September 2026. One more was recorded here in the fortnight before it.
What the source measured
World Air Quality Index reported: AQI 164 (Unhealthy) at BDA, Fuyang (阜阳开发区)
The air quality index read 164 (Unhealthy) at the BDA, Fuyang (阜阳开发区) station.
Urban PEI: 31,715 within a heuristic 5 km radius; not unique people.
This is the lowest air quality index we have recorded at this point, over 209 readings since 15 September 2026 — the previous range was 164 to 165.
Nearby, since 29 June 2026
- September 7, 2026 · score 41 · 0.0 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 41 out of 100.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
Computed under scoring rules v5. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Air Quality |
| Severity | Medium |
| Calamity Score (ours) | 41 / 100 |
| Legacy data-support index | 0.65/1 |
| Coordinates | 32.8603, 115.8556 |
| Nearest City | Fuyang (6 km) |
| Urban exposure index (PEI) | 31.7K within 5 km |
| Impact Tier | significant |
| Timestamp | 2026-09-15T23:00:00.000Z |
| Source | https://aqicn.org/city/@7121 |
Physical priority index · v5. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: waqi. Occurrence: 2026-09-15T23:00:00.000Z.
First archived: 2026-09-15T21:33:05.776Z. Material modification: 2026-09-15T23:35:37.521Z.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| Aqi | 164 |
| AqiCategory | Unhealthy |
| StationName | BDA, Fuyang (阜阳开发区) |
| StationUid | 7121 |
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.
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