Dr Jim Teo – The Strait Times.  PSI hits unhealthy levels in Singapore for first time since 2016 as haze worsens

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Dr Jim Teo – The Strait Times. PSI hits unhealthy levels in Singapore for first time since 2016 as haze worsens

PSI readings with the highest recorded in western Singapore. PUBLISHED
SEP 14, 2019, 1:43 PM SGT. Read more.