Singapore haze: Air quality in west hits unhealthy range as PM2.5 readings rise islandwide
Air quality in Singapore has reached unhealthy levels due to transboundary haze caused by hotspots in Indonesia. The National Environment Agency warns that the situation may persist despite potential showers.
Why it matters
Public health is at risk due to poor air quality, impacting daily activities and requiring government monitoring of regional environmental conditions.
The National Environment Agency warned on Friday morning that the risk of severe transboundary haze remained, with widespread hotspots detected in southern Kalimantan and Sumatra.
A view of the haze from Chinatown on the afternoon of Oct 23, 2026. (Photo: CNA/Ooi Boon Keong)
SINGAPORE: Air quality in western and central Singapore entered the unhealthy range on Friday (Oct 23), as hourly PM2.5 readings rose across the island.
The 24-hour Pollutant Standards Index (PSI) in the west reached 103 at 4pm, crossing into the unhealthy band, before rising to 108 two hours later.
The central region crossed into the range at 6pm, with a reading of 102.
Readings in the other three regions remained in the moderate range, with PSI readings ranging from 85 to 89 at 6pm.
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