Air quality in Singapore saw a notable improvement on October 26, as hourly PM2.5 readings returned to the normal range, providing relief to residents after enduring weeks of haze. The 24-hour Pollutant Standards Index (PSI) across the island remained in the good-to-moderate range, with values between 67 and 74.
At 6 p.m., PM2.5 readings, which measure fine particulate pollution, ranged from 28 to 40 across Singapore’s five regions. The PSI, which assesses overall air quality based on six key pollutants, categorizes readings from 0 to 100 as good to moderate, and from 101 to 200 as unhealthy.
The National Environment Agency has forecasted a moderate PSI of 60 to 90 for October 27. Despite the presence of smoke haze over Kalimantan, the possibility of it affecting Singapore is deemed low due to expected northeasterly or southeasterly winds and forecast showers.
Looking ahead, variable winds and additional showers are expected on October 28 and 29. The anticipated wet weather is likely to suppress hotspot activity and reduce the risk of smoke haze affecting the region.
Authorities have advised residents, especially children, older adults, and individuals with pre-existing health conditions, to limit outdoor activities if air quality deteriorates to unhealthy levels.