Singaporeans rolled back military training, kept cough-stricken children indoors and considered wearing protective masks to work Tuesday after a smoky haze triggered by forest fires in neighbouring Indonesia caused air pollution to briefly hit its worst level in nearly 16 years.
'The hazy conditions are expected to persist for the next few days', the National Environment Agency (NEA) said on its website.
'Weather conditions in the region have become drier and an increase in hotspot activities has been observed mainly over Sumatra region'.
'Given the current hazy conditions, it is advised that children, the elderly and those with heart or lung diseases reduce prolonged or heavy outdoor activities', the NEA said in a statement. 'Everyone else should limit prolonged or heavy outdoor activities'.