Haze Day Cambodia air quality ranking: cities by PM2.5 right now
Right now Phnom Penh has the highest 1-hour PM2.5 in Cambodia: 10 µg/m³ (Normal). The lowest is Siem Reap at 6 µg/m³. Singapore uses the official NEA reading; other places are CAMS model estimates, not official measurements. Updated 2026-10-11 23:00.
| # | Place | PM2.5 µg/m³ | Level | Source |
|---|---|---|---|---|
| 1 | Phnom Penh | 10 | Normal | Model estimate |
| 2 | Siem Reap | 6 | Normal | Model estimate |
Cleanest air right now
Siem Reap (6) · Phnom Penh (10)
How to read this ranking
- Values are 1-hour PM2.5 in µg/m³, updated about every 10–15 minutes. Levels use the NEA 1-hour bands (0–55, 56–150, 151–250, 251+).
- Singapore is an official NEA reading (worst region). Everywhere else is a CAMS model estimate: it shows how places compare but can differ from local monitoring stations.
- A model value is not directly comparable with an official station reading, so treat close rankings as ties.