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Haze in Singapore: PM2.5 readings return to normal but PSI still in unhealthy range in most regions

Haze in Singapore: PM2.5 readings return to normal but PSI still in unhealthy range in most regions
Photo: Straits Times — Singapore · view original

At 10am, 24-hour PSI readings ranged from 107 to 132 for four of the Republic's five regions.

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