Overview
- NEA data showed an islandwide improvement by the morning of Oct 26 with one‑hour PM2.5 readings between 20 and 29 and the 24‑hour PSI around 71 to 78.
- The National Environment Agency forecast the 24‑hour PSI for Oct 26 at 70–100 and said showers and south‑west or west winds on Oct 26–28 should reduce the likelihood of haze moving into Singapore.
- Localized poorer air persisted the previous evening in the west, where the 24‑hour PSI reached about 105 and the hourly PM2.5 hit roughly 60.
- NEA reported visible smoke over Kalimantan on Oct 25 but said the smoke plume was not drifting toward Singapore during the latest observations.
- Officials advise people to use the 24‑hour PSI for planning and the 1‑hour PM2.5 for immediate outdoor choices and to ask vulnerable groups to scale down strenuous outdoor activity when readings enter the unhealthy range.