SINGAPORE: Air quality across all five regions of Singapore remained in the unhealthy range on Thursday (Oct 8), with the west recording a 24-hour Pollutant Standards Index (PSI) reading of 161 at 8am.
The 24-hour PSI readings entered the unhealthy range across Singapore at noon on Wednesday and remained there overnight into Thursday morning.
As of 8am, the 24-hour PSI was 146 in central Singapore, 126 in the east, 118 in the south and 113 in the north.
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