PUBLISHED ONSeptember 13, 2026 10:39 AMBYSean LerAir quality in Singapore remained in the moderate range across all five regions on Sunday (Sept 13).
However, 1-hour PM2.5 readings in the central region crept back into the elevated range at about 5pm, continuing into 6pm with a reading of 60. Readings of between 56 to 150 denote the elevated range.
In its daily update on Sunday evening, the National Environment Agency (NEA) said the Republic's 24-hour PSI forecast is again expected to be in the moderate to low unhealthy range.
Explaining this, NEA stated that moderate to dense smoke plumes continue to be observed from fires in Kalimantan and southern Sumatra.
It has also observed smoke plumes from fires in Kalimantan drifting towards Singapore.
The agency added that while showers are forecast over northern Sumatra and north-western Borneo in the coming days, dry conditions are forecast over Kalimantan and southern Sumatra.
This, coupled with the prevailing southerly or south-easterly winds, means there remains a risk of transboundary smoke haze affecting Singapore, should fires in Indonesia persist.
Members of the public are reminded that the health impact of haze is dependent on one's health status, the PSI level, and the length and intensity of outdoor activity.
Those who are planning to conduct or participate in outdoor activities immediately can check the 1-hour PM2.5 concentration readings and vulnerable persons guide.
Meanwhile, those who are planning outdoor activities for the next day should use the 24-hour PSI forecast and the corresponding health advisories for planning.
[[nid:744892]]
