Serian was the highest in the state at 168, followed by Kapit at 166 and Sri Aman at 160. Miri and Bintulu also recorded 158, while Samarahan was 157, Sibu 156 and Samalaju 155. The readings show the haze remains a broad state-level problem rather than being confined to one town.

The Department of Environment said it is continuing round-the-clock monitoring. Wind direction and hotspot activity can change the numbers during the day, so residents should check the latest API before deciding on prolonged outdoor activity, especially if they are in a vulnerable group.