The Pollutant Standards Index (PSI) has dipped slightly to 355 at 2pm on Thursday.
The Khoo Teck Puat Hospital (KTPH) is reporting a 30 per cent increase in patients with asthma this month at its emergency department.
The Pollutant Standards Index (PSI) has climbed to a new high of 371 at 1pm on Thursday.
Air purifiers are now sold out at most stores as hazy conditions persist with the latest Pollutant Standards Index (PSI) reaching 299 at 12noon on Thursday.
Hospitals are closing the windows in their subsidised B2 and C class wards to protect patients against the high level of particles in the air as the haze worsens. These wards are usually naturally ventilated, with windows open.
