Right now
The most recent data we hold from World Air Quality Index arrived 31 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
One other detection within 20 km in the last 24 hours, <1 km from here.
Reported by World Air Quality Index today.
No stronger detection stands among the 10 recorded within 20 km of this point since 23 August 2026 — 9 others scored the same. The last comparable one was on 24 September 2026. 8 more were recorded here in the fortnight before it.
What the source measured
World Air Quality Index reported: AQI 171 (Unhealthy) at Lumbini, Nepal
The air quality index read 171 (Unhealthy) at the Lumbini, Nepal station.
At this point we have recorded a air quality index between 168 and 173, over 8 readings since 25 September 2026. Today's reading sits 60% of the way up that range.
Nearby, since 23 August 2026
- September 26, 2026 · score 29 · 0.0 km
- September 24, 2026 · score 29 · 0.0 km
- September 23, 2026 · score 29 · 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 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 | 27.4895, 83.2791 |
| Nearest City | Nautanwa (15 km) |
| Urban exposure index (PEI) | 0 within 5 km |
| Impact Tier | minor |
| Timestamp | 2026-09-25T23:15:00.000Z |
| Source | https://aqicn.org/city/@9306 |
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: 2026-09-25T23:15:00.000Z.
First archived: 2026-09-25T07:57:58.175Z. Material modification: 2026-09-26T00:52:14.640Z.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
2026-09-26T00:52:14.640Z · data_change
Index 29 → 29; severity medium → medium; version 5 → 5.
2026-09-26T00:25:55.974Z · data_change
Index 29 → 29; severity medium → medium; version 5 → 5.
2026-09-25T23:54:08.730Z · data_change
Index 29 → 29; severity medium → medium; version 5 → 5.
2026-09-25T23:21:59.120Z · data_change
Index 29 → 29; severity medium → medium; version 5 → 5.
2026-09-25T22:49:37.981Z · data_change
Index 29 → 29; severity medium → medium; version 5 → 5.
2026-09-25T21:50:39.001Z · data_change
Index 29 → 29; severity medium → medium; version 5 → 5.
2026-09-25T20:50:59.894Z · data_change
Index 29 → 29; severity medium → medium; version 5 → 5.
2026-09-25T19:41:41.103Z · data_change
Index 29 → 29; severity medium → medium; version 5 → 5.
2026-09-25T18:42:02.431Z · data_change
Index 29 → 29; severity medium → medium; version 5 → 5.
2026-09-25T17:44:26.675Z · data_change
Index 29 → 29; severity medium → medium; version 5 → 5.
2026-09-25T16:45:17.643Z · data_change
Index 29 → 29; severity medium → medium; version 5 → 5.
2026-09-25T15:40:31.753Z · data_change
Index 29 → 29; severity medium → medium; version 5 → 5.
2026-09-25T14:41:34.569Z · data_change
Index 29 → 29; severity medium → medium; version 5 → 5.
2026-09-25T13:43:03.034Z · data_change
Index 29 → 29; severity medium → medium; version 5 → 5.
2026-09-25T12:28:36.297Z · data_change
Index 29 → 29; severity medium → medium; version 5 → 5.
2026-09-25T11:56:43.355Z · data_change
Index 29 → 29; severity medium → medium; version 5 → 5.
Score Breakdown
Technical Details
| Aqi | 171 |
| AqiCategory | Unhealthy |
| StationName | Lumbini, Nepal |
| StationUid | 9306 |
| 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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