3-hour PSI reading at higher end of 'moderate' range

NEA, in a situation update on Wednesday, said that "occasional extended periods of drier weather" can be expected in the coming months, resulting in increased hotspot activities in Sumatra and Borneo.

SINGAPORE - The three-hour Pollutant Standards Index (PSI) stood at 88 at 3pm on Friday, which is in the higher end of the "moderate" range of 51 to 100. Meanwhile, the latest 24-hour PSI average, measured at noon on Friday, stood between 54 and 61, also within the "moderate" range.

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