Moderate to dense smoke plumes continue to be observed from fires in southern and central Sumatra and Kalimantan, said NEA.

SINGAPORE, Sept 5 — Singapore’s air quality improved on Saturday morning, with the western region returning to the moderate range after briefly recording unhealthy levels...

Air quality in three regions of Singapore started the day in the unhealthy range on Saturday before improving throughout the day.

As of 11pm on Sunday, the 24-hour PSI in Singapore was between 72 and 93, in the moderate range.