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Singapore haze: Air quality improves as 24-hour PSI readings fall to moderate levels in three regions

Singapore haze: Air quality improves as 24-hour PSI readings fall to moderate levels in three regions
Photo: CNA — Singapore · view original

In its Sunday evening advisory, the National Environment Agency (NEA) forecast that the 24-hour PSI would remain in the unhealthy range on Monday, between 101 and 190.

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