Singapore air quality enters unhealthy range due to regional haze

Air quality in Singapore entered the unhealthy range on September 27 due to regional haze. The National Environment Agency (NEA) reported that the 24-hour Pollutant Standards Index (PSI) reached unhealthy levels in the central, eastern, and western regions, with the central region peaking at 127.

The haze is linked to smoke plumes from fires in southern Sumatra and parts of Kalimantan. While showers provided some relief, southeast winds have continued to bring smoke toward Singapore. By late evening on September 27, air quality in the eastern and western regions improved back into the moderate range, though central Singapore remained in the unhealthy band with a reading of 110.

The deteriorating conditions impacted local activities, including the shortening of Decathlon’s inaugural Kiprun half-marathon from 21.1 km to 10 km. The NEA has advised the public to adjust outdoor activities, specifically recommending that elderly individuals, pregnant women, children, and those with chronic lung or heart conditions minimize or avoid strenuous outdoor exertion when PSI levels are unhealthy.