Haze in Singapore: Air quality returns to moderate levels

Haze in Singapore: Air quality returns to moderate levels

SINGAPORE – Air quality across Singapore was back to moderate levels early on Sept 28, after it rose to the unhealthy range a day earlier. At 6am on Sept 28, the 24-hour PSI reading for the central region was 80, joining the northern, southern, eastern and western regions in the moderate range at 62, 68, 74 and 68 respectively. The PSI for reading for the central region lay in the unhealthy range at 110 on Sept 27, before improving at midnight, where it fell to the moderate range of 95. PSI read