Overheard in Singapore: Hazy Singapore Skies

Mother: Do you think the sky is getting hazier?
Daughter: No la. Where got? Still can see the sun right? Not hazy la.
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The PSI in Singapore is 73! We’re all gonna die!
Wait, what does PSI stands for?
The acronym for Pollutant Standards Index, which is an index for our pollutant standards. Understand?
