On October 26, Singapore experienced an improvement in air quality as hourly PM2.5 readings fell back into the normal range, and the 24-hour Pollutant Standards Index (PSI) stayed within the good-to-moderate band across the island. This shift brought relief to residents who had been dealing with hazy conditions for several weeks.
At 6 p.m., PM2.5 levels, which measure fine particulate pollution, were recorded between 28 and 40 across Singapore’s five regions. Meanwhile, the 24-hour PSI, which assesses overall air quality based on six key pollutants, ranged from 67 to 74. A PSI between 0 and 100 is considered good to moderate, while levels from 101 to 200 indicate unhealthy air quality.
The National Environment Agency has forecasted a moderate PSI of 60 to 90 for October 27, indicating that air quality is expected to remain stable. Although smoke haze was detected over Kalimantan, it is unlikely to impact Singapore due to predicted northeasterly or southeasterly winds and expected showers.
Looking ahead, variable winds and additional showers are anticipated on October 28 and 29. This wet weather pattern is expected to help suppress hotspot activity and reduce the chances of smoke haze reaching Singapore.
Authorities continue to advise vulnerable groups, including children, older adults, and individuals with pre-existing health conditions, to limit outdoor activities if the air quality deteriorates to unhealthy levels.
