Right now
The most recent data we hold from World Air Quality Index arrived 22 minutes ago, and this point is in it.
5 other detections within 20 km in the last 24 hours, the nearest 13 km from here.
Reported by World Air Quality Index today.
It is the 7th strongest of the 8 detections recorded within 20 km of this point since 12 May 2026. Another comparable one was recorded here earlier the same day. 7 more were recorded here in the fortnight before it.
What the source measured
World Air Quality Index reported: AQI 171 (Unhealthy) at Yuejin Road, Tianjin (天津跃进路)
The air quality index read 171 (Unhealthy) at the Yuejin Road, Tianjin (天津跃进路) station.
Nearby, since 12 May 2026
- September 4, 2026 · 0.0 km
- September 26, 2026 · score 41 · 12.5 km
- September 25, 2026 · score 41 · 12.5 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.
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) | 29 / 100 |
| Legacy data-support index | 0.48/1 |
| Coordinates | 39.0871, 117.3145 |
| Nearest City | Xianshuigu (12 km) |
| Urban exposure index (PEI) | 0 within 5 km |
| Impact Tier | minor |
| Timestamp | 2026-09-26T13:00:00.000Z |
| Source | https://aqicn.org/city/@702 |
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: 2026-09-26T13:00:00.000Z.
First archived: 2026-09-26T12:03:16.479Z. Material modification: 2026-09-26T14:07:06.216Z.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
2026-09-26T14:07:06.216Z · data_change
Index 29 → 29; severity medium → medium; version 5 → 5.
2026-09-26T13:07:58.590Z · data_change
Index 29 → 29; severity medium → medium; version 5 → 5.
Score Breakdown
Technical Details
| Aqi | 171 |
| AqiCategory | Unhealthy |
| StationName | Yuejin Road, Tianjin (天津跃进路) |
| StationUid | 702 |
| Network | official |
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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