Right now
The most recent data we hold from World Air Quality Index arrived 7 minutes ago, and this point is in it.
Reported by World Air Quality Index today.
What the source measured
World Air Quality Index reported: AQI 328 (Hazardous) at Mempawah, Indonesia
The air quality index read 328 (Hazardous) at the Mempawah, Indonesia station.
At this point we have recorded a air quality index between 279 and 394, over 67 readings since 25 September 2026. Today's reading sits 43% 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 46 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 | Critical |
| Calamity Score (ours) | 46 / 100 |
| Legacy data-support index | 0.48/1 |
| Coordinates | 0.1240, 110.4560 |
| Nearest City | Tebedu (101 km) |
| Urban exposure index (PEI) | 0 within 5 km |
| Impact Tier | minor |
| Timestamp | 2026-09-25T14:00:00.000Z |
| Source | https://aqicn.org/city/@13648 |
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: 2026-09-25T14:00:00.000Z.
First archived: 2026-09-25T07:57:52.491Z. Material modification: 2026-09-25T14:41:33.153Z.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
2026-09-25T14:41:33.153Z · data_change
Index 36 → 46; severity high → critical; version 5 → 5.
2026-09-25T13:43:01.937Z · data_change
Index 46 → 36; severity critical → high; version 5 → 5.
2026-09-25T13:16:47.574Z · data_change
Index 43 → 46; severity critical → critical; version 5 → 5.
2026-09-25T11:56:42.181Z · data_change
Index 43 → 43; severity critical → critical; version 5 → 5.
Score Breakdown
Technical Details
| Aqi | 328 |
| AqiCategory | Hazardous |
| StationName | Mempawah, Indonesia |
| StationUid | 13648 |
| 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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