Air pollution

Air quality across all five regions remained in the unhealthy band on Monday as the haze persisted, with the 24‑hour Pollutant Standards Index ranging between 106 and 148 at 2.00pm. In the central region, the 1‑hour PM2.5 level eased back into the elevated band at 2.00pm after briefly entering the high range at 1.00pm. The remaining regions were also in the elevated band at 2.00pm, with readings from 101 to 149.
The National Environment Agency said widespread hotspots were detected in Kalimantan and Sumatra, and observed moderate to dense transboundary smoke over Singapore. While passing showers may bring some improvement, the agency warned there remains a risk of haze, particularly where dry conditions persist. The 24‑hour PSI was forecast to stay in the unhealthy range through the day.
Subsidised treatment for haze‑related conditions took effect on Monday at Public Health Preparedness Clinics and polyclinics. Health Minister Ong Ye Kung announced that all Singaporeans would be eligible for subsidies at polyclinics, while participating PHPCs would extend support to selected groups including children and seniors.
Authorities said N95 masks will be distributed to more vulnerable individuals when the 24‑hour PSI exceeds 200 and enters the very unhealthy range. The Ministry of Education will consider closing schools if the next‑day air quality forecast is in the hazardous range, defined as a 24‑hour PSI above 300. Should closures coincide with national examinations, affected papers will be rescheduled and the examination period extended.