Singapore air quality unhealthy in all five regions, central PSI hits 154
Air quality in all five regions of Singapore entered the unhealthy range on Tuesday, the first time since September 2019. The central region recorded the worst 24-hour PSI at 154 as of 6am, with smoke haze from fires in Kalimantan and southern Sumatra drifting in on east-southeast winds. NEA expects dry conditions and continued haze in the coming days.