Singapore haze: PSI in unhealthy range across island
Singapore is experiencing unhealthy air quality levels due to haze, with 24-hour PSI readings reaching into the unhealthy range across most of the island. Despite the pollution, organizers of the upcoming Singapore Grand Prix state the event will proceed as planned with contingency measures in place.
Why it matters
The haze poses significant public health risks to vulnerable populations and highlights the ongoing regional environmental challenge of transboundary smoke.
Listen SINGAPORE – The air quality across Singapore remained in the unhealthy range on Oct 8, with the 24-hour Pollutant Standards Index (PSI) at 1pm standing at 109 in the north, 108 in the south, 118 in the east, 154 in the west and 140 in the central region.
Air quality is considered unhealthy when the PSI – a 24-hour rolling average of six key air pollutants – is in the range of 101 to 200.
PM2.5 readings, meanwhile, were elevated across four regions – the east (65), central (69), west (61) and south (70) – with only the north recording normal levels at 21.
The hourly PM2.5 reading is used as a gauge for immediate air quality, with scores from 56 to 150 indicating elevated pollution levels.
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