PM2.5 in Loei by district
14 districts in Loei. Choose one to see PM2.5 now and its history.
Districts ranked by PM2.5 now
Loading latest values
Values come from the station nearest to each district and update hourly.
PM2.5 statistics for Loei, Jun 2025 to Jun 2026
Yearly average20.9Good
Days over 37.540
Dustiest monthApril57.1
Monthly average
Districts by yearly average
| District | Average | Days over limit |
|---|---|---|
| Chiang Khan | 23.2 | 50 |
| Dan Sai | 23.2 | 50 |
| Erawan | 23.2 | 50 |
| Mueang Loei | 23.2 | 50 |
| Na Duang | 23.2 | 50 |
| Na Haeo | 23.2 | 50 |
| Nong Hin | 23.2 | 50 |
| Pak Chom | 23.2 | 50 |
| Phu Kradueng | 23.2 | 50 |
| Phu Luang | 23.2 | 50 |
| Phu Ruea | 23.2 | 50 |
| Tha Li | 23.2 | 50 |
| Wang Saphung | 23.2 | 50 |
| Pha Khao | 18.6 | 30 |
All districts
Frequently asked questions
How many districts in Loei can I check for PM2.5?
14 districts. Each one shows the reading from its nearest Air4Thai station, with the distance to that station.
At what PM2.5 level should I wear a mask?
Above 25 µg/m³ at-risk groups should wear a surgical mask outdoors for long periods. From 37.6 to 75 the air starts to affect health and an N95 mask is advised. Above 75 avoid outdoor activity.
How often is the data updated?
Readings come from the Pollution Control Department's Air4Thai feed and are refreshed every hour.