The Natural Resources and Environment Board’s latest reading put Lubok Antu highest at 182, followed by Samarahan at 164, IPD Serian at 162, Sri Aman at 155 and Lundu at 106. Kuching recorded 97.

The readings are based on a 24-hour running average, so the situation can shift with rain, wind and smoke movement. Regional monitoring also points to dry conditions and fire activity in parts of Kalimantan, with a continuing risk of haze reaching western Sarawak.

An API reading from 101 to 200 is classed as unhealthy, with greater concern for people who have heart or lung conditions. Kuching residents can check the latest APIMS reading before spending long periods outdoors; if the air turns visibly smoky, reduce strenuous activity and keep children and high-risk family members away from prolonged exposure.