Reported by World Air Quality Index 10 days ago.
It is the 3rd strongest of the 7 detections recorded within 20 km of this point since 5 May 2026. The last comparable one was on 13 August 2026.
What the source measured
World Air Quality Index reported: AQI 252 (Very Unhealthy) at Field Crop Research Center, Rayong, Thailand (ศูนย์วิจัยพืชไร่ระยอง)
The air quality index read 252 (Very Unhealthy) at the Field Crop Research Center, Rayong, Thailand (ศูนย์วิจัยพืชไร่ระยอง) station.
Nearby, since 5 May 2026
- September 2, 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 14 out of 100, at 44 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Air Quality |
| Severity | High |
| Calamity Score (ours) | 14 / 100 |
| Our confidence | 44% |
| Coordinates | 12.7352, 101.1356 |
| Nearest City | Ban Chang (8 km) |
| Impact Tier | minor |
| Timestamp | 2026-08-23T11:00:00.000Z |
| Source | https://aqicn.org/city/@1821 |
Score Breakdown
Technical Details
| Aqi | 252 |
| AqiCategory | Very Unhealthy |
| StationName | Field Crop Research Center, Rayong, Thailand (ศูนย์วิจัยพืชไร่ระยอง) |
| StationUid | 1821 |
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 Ban Chang?
Calamity.live data shows a air quality event with CalamityScore 14/100, near Ban Chang (Thailand), based on data from waqi. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.