Singapore haze: PM2.5 readings remain in normal range across all regions
The 24-hour PSI is forecast to be in the moderate range on Monday, between 51 and 80.
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Singapore: The 1-hour PM2.5 readings remained in the normal range across Singapore on Sunday (Nov 1), after briefly entering the elevated band in the western region earlier in the morning.
At 5pm, the hourly PM2.5 readings ranged from 15 to 41 across the five regions, all within the normal band.
The western region recorded elevated readings at 5am and 6am, reaching 59.
The 24-hour Pollutant Standards Index (PSI) ranged from 71 to 89 at 5pm, in the moderate range.
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Air quality has remained in the good-to-moderate range since 11pm on Oct 25, following an earlier spell of hazy conditions.
On Sunday, showers fell over the northern, western and eastern parts of Singapore, said NEA in its latest haze situation update, adding that localised moderate to dense smoke plumes were observed in Kalimantan.
The 24-hour PSI is forecast to be in the moderate range on Monday, between 51 and 80.
"For tomorrow, the haze situation over Singapore is expected to remain subdued due to showers over Sumatra, Kalimantan and Singapore and the surrounding region," said NEA.
"While the prevailing winds are expected to blow from the east or southeast on Tuesday and Wednesday, forecast showers are likely to keep the haze situation suppressed."
NEA advises the public to use the 24-hour PSI forecast when planning outdoor activities and check the latest 1-hour PM2.5 readings for immediate activities.
Based on the PSI forecast for Monday, all members of the public can continue with their usual outdoor activities.
When 1-hour PM2.5 concentrations are in the elevated band, healthy individuals should reduce strenuous outdoor activities for the next hour.
Vulnerable groups, including children, elderly people, pregnant women and those with chronic heart or lung conditions, should avoid strenuous outdoor activities during that period.
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