Straits Times 16 Jun 12;
SINGAPORE could experience brief periods of slight haze in the next two weeks, the National Environment Agency said this week.
In an update on its haze website on Thursday, it said that weather conditions in the region had become drier early in the week, and more 'hot spot activities' had been observed in Sumatra, Indonesia.
The Pollutant Standards Index, which measures air quality here, was 50 at 4pm yesterday, in the 'good' range.
Air is unhealthy when the index passes 100.
Doctors have said that patients with respiratory problems such as asthma should carry inhalers and avoid outdoor exercise during hazy periods.