Slight haze in Singapore as PSI remains in moderate range
PUBLISHED ONMarch 22, 2015 6:01 AM
SINGAPORE - Air quality in Singapore has improved, as PSI readings dipped further to the moderate range on Sunday from the unhealthy range on Friday.
On Friday afternoon, the three-hour Pollutant Standards Index (PSI) reading was over 100. National Environment Agency (NEA) said in an advisory that hazy conditions persisted on Saturday, and that the 24-hour PSI at 6pm was between 72-82.
The three-hour PSI reading at 1pm on Sunday was 74, which falls in the moderate range.
NEA said that the haze could have been caused by burning activities in the northern ASEAN region, Peninsular Malaysia and Sumatra.
ljessica@sph.com.sg
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