SINGAPORE - Some mild haze can be expected on Friday, according to an advisory by the National Environment Agency (NEA) issued on Thursday evening.
"The 24-hour Pollutant Standards Index (PSI) for the next 24 hours is expected to be in the high end of the moderate range and the low end of the unhealthy range," NEA said.
It added that the hazy conditions " have further eased today as the prevailing winds continued to blow from the South-east".
After a few unusually hazy days, the 24-hour PSI has been in the moderate range since 10am on Thursday.
As of 7pm, the 24-hour PSI was 68 to 83, and the three-hour PSI was at 88.
"There has been a reduction in the extent of the haze over central and southern Sumatra. However, some haze from Kalimantan has spread westward to the South China Sea east of Singapore," NEA said.
Given the air quality forecast for the next 24 hours, healthy people should reduce prolonged or strenuous outdoor physical exertion, it cautioned.
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.
People who are not feeling well, especially the elderly and children, and those with chronic heart or lung conditions, should seek medical attention.