'Occasional hazy conditions' expected at least till Wednesday

Occasional hazy conditions are expected for the rest of Tuesday and Wednesday, said NEA, adding that the 24-hour PSI may enter the low-end of the Unhealthy range.
Channel NewsAsia 25 Aug 15;

SINGAPORE: Hazy conditions are expected on Tuesday (Aug 25) and Wednesday, with prevailing winds forecasted to blow from the south or southeast, said the National Environment Agency (NEA) Tuesday evening.

"For the rest of today and tomorrow, occasional hazy conditions can be expected," said NEA, adding that thundery showers are forecast in the late morning and early afternoon on Wednesday.

"The 24-hr PSI is expected to be in the high-end of the Moderate range, but may enter the low-end of the Unhealthy range if the prevailing winds blow from the south or southwest," NEA added. The agency also said that the slightly hazy conditions in the afternoon was "blown in from Sumatra by the prevailing winds".

NEA said 152 hotspots were detected in Sumatra on Tuesday, down from 192 found on Monday.

The three-hour PSI at 7pm was 99, while the 24-hour PSI at 7pm was 80-89, which is in the Moderate range.

"Given the air quality forecast for the next 24 hours, healthy persons should reduce prolonged or strenuous outdoor physical exertion," said NEA. "The elderly, pregnant women and children should minimise prolonged or strenuous outdoor physical exertion, while those with chronic lung or heart disease should avoid prolonged or strenuous outdoor physical exertion."

On Monday the three-hour PSI peaked at 91 in the afternoon, before falling to 82 at 7pm. The 24-hour PSI at 7pm on Monday was 70-76, due to prevailing winds blowing in haze from Sumatra, said NEA.

- CNA/ek