Air quality in Singapore remains in unhealthy range on Monday; 24

The Straits TimesAir quality in Singapore remains in unhealthy range on Monday; 24-hour PSI at ...The Straits TimesSINGAPORE - Air quality remained in the unhealthy range on Monday (Sept 14) following a hazy weekend which kept Singaporeans away from outdoor activities. The 24-hour Pollutant Standards Index (PSI) at 10am was between 119 and 144. The unhealthy ...Singapore Grand Prix: Haze concerns before F1 night raceBBC SportSingapore Grand Prix on alert over haze threatChannel News AsiaAir quality could hit very unhealthy range todayAsiaOneall 158 news articles »