Haze update Oct 2: Singapore's PSI forecast to remain in moderate to low-unhealthy range

All regions in the Republic recorded a second consecutive day of improved air quality on Friday (Oct 2), with 24-hour Pollutant Standards Index (PSI) remaining in the moderate range across Singapore.At 6pm, PSI ranged from 64 to 81 — in the moderate range — with central Singapore recording the highest PSI of 81.Meanwhile, one-hour PM2.5 concentration is in the normal band, except in central (73) and western (56) Singapore, where readings were in the elevated band. In its daily haze situation update on Friday evening, the National Environment Agency (NEA) said that the country's 24-hour PSI is forecast to remain in the moderate to low-unhealthy range.It noted that moderate to dense smoke plumes from southern Sumatra were observed drifting towards Singapore, while smoke haze was also observed from fires in Kalimantan.