Singapore PSI back in moderate range after haze pushed central region to 106
Air quality across Singapore has returned to the moderate range, with the 24-hour PSI in the central region at 97 as at 7am on Sept 11 after hitting a high of 106 on Sept 10. NEA says smoke plumes from fires in southern and central Sumatra and Kalimantan are still being observed, and warns haze could return if the fires persist under prevailing winds.