Singapore haze: Air quality improves across Singapore, moderate in all regions
Though the hotspot and smoke haze situation may improve in areas experiencing showers, it may continue to stay elevated in areas experiencing prolonged periods of dry weather, "with a continued risk of transboundary haze occurrence", NEA said on Sunday.
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SINGAPORE: Air quality improved on Sunday (Oct 25), as the 24-hour PSI reading in the west dipped into the moderate range at 11pm, joining the other regions.
The 1-hour PM2.5 level rose into the elevated range at 8pm before falling back into the normal range at 9pm. The hourly PM2.5 readings remained in the normal band in the four other regions.
Meanwhile, the 24-hour PSI reading in the west joined the other regions in the moderate range at 11pm after lingering in the unhealthy band throughout the day.
The reading in the south dropped out of the unhealthy range at 10am when it dipped to 100, and the north followed at 1pm as it fell to 99. At 3pm, the readings in the south and north were in the moderate range.
At 5pm, the reading in central Singapore dropped to 100, also entering the moderate range.
The reading in eastern Singapore also dropped into the moderate band at 7pm.
On Sunday evening, the National Environment Agency (NEA) said the 24-hour PSI for Monday was expected to range from 70 to 100, in the good to moderate band.
NEA noted that some showers fell over parts of Singapore on Sunday, and added that smoke haze was observed over Kalimantan but it did not drift to Singapore.
The agency added that showers are expected over Singapore and its vicinity on Monday, and along with the wind direction, the likelihood of smoke haze affecting the country "may be reduced".
"For Tuesday and Wednesday, the winds are expected to continue blowing from the southwest or west. Showers are expected over Singapore and the vicinity, which should further help the haze situation," said NEA.
NEA has advised the public to refer to the 24-hour PSI forecast when planning outdoor activities and to check the latest 1-hour PM2.5 readings before undertaking immediate outdoor activities.
When hourly 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.
For Sunday, NEA advised healthy individuals to reduce prolonged or strenuous outdoor physical exertion, while elderly people, pregnant women and children should minimise such activities.
People with chronic heart or lung disease should avoid prolonged or strenuous outdoor physical exertion.
