24-hour PSI may enter unhealthy range on Monday as slight haze persists in Singapore

Children play at the water play area at Gardens by the Bay on Oct 9, 2015.
Children play at the water play area at Gardens by the Bay on Oct 9, 2015.ST PHOTO: YEO KAI WEN

SINGAPORE - A slight haze lowered visibility in parts of Singapore on Sunday (Oct 11), even as air quality held steady in the moderate band.

As of 7pm, the 24-hour Pollutant Standards Index (PSI) stood at between 80 and 90. The three-hour PSI, which is not tied to a healthy advisory, was 108.

In its latest update at 6pm, the National Environment Agency (NEA) had indicated that the current conditions are expected to persist. On Monday, prevailing winds are forecast to be weak and blow from the southeast. 

The 24-hour PSI for the next 24 hours is expected to stay in the moderate range (51-100). It may enter the low end of the unhealthy range should denser haze be blown in. 

A total of 129 hotspots were detected in Sumatra on Sunday, with parts of central and southern Sumatra are still affected by moderate to dense haze. 


After weeks of struggling to combat the raging forest fires in Sumatra and Kalmantan, Indonesia had finally turned to its neighbours for help.

The Singapore Armed Forces deployed three aircraft and a 34-strong team to Indonesia on Saturday morning, as part of Singapore's haze assistance package. They were accompanied by a six-man Disaster Assistance and Rescue Team (Dart) from the Singapore Civil Defence Force.

Malaysia, Australia, Russia and China have also stepped in to provide assistance.

For local haze updates, visit the NEA website (www.nea.gov.sg), the haze microsite (www.haze.gov.sg), follow NEA on Facebook (www.facebook.com/NEASingapore) and NEA Twitter (@NEAsg), or download the myENV app.