KUCHING: Ambient air quality in Sarawak has shown a rising trend in Air Pollution Index (API) readings since mid-March, although no areas have recorded unhealthy levels as of noon Sunday (March 29).
According to the Natural Resources and Environment Board (NREB) the increase in API readings is likely caused by localised open burning and transboundary haze.
Should dry weather conditions persist alongside increased biomass burning, Sarawak could face a higher risk of haze.
NREB said 17 areas are currently in the moderate category, while one area has recorded good air quality.
The situation is expected to be influenced by the Inter-Monsoon phase from Sunday (March 29) to May 2026.
This period typically brings light and variable winds, which may contribute to the accumulation of pollutants.
Data from the ASEAN Specialised Meteorological Centre (ASMC) showed that 241 hotspots were detected in Kalimantan, Indonesia, throughout March, while 18 hotspots were recorded in Sarawak during the same period.
In response, NREB has activated its haze operations room and intensified field patrols.
It has also temporarily suspended the issuance of controlled burning permits and issued notices prohibiting open burning to all project developers.
The public has been advised to take precautionary measures, including staying hydrated, limiting outdoor activities and wearing face masks, especially for those in high-risk groups.
NREB also reminded that open burning is strictly prohibited under Section 30(1)(a) and Section 30(2) of the Natural Resources and Environment Ordinance (Cap. 84).
Offenders, if convicted, may face a fine of up to RM100,000, imprisonment of up to five years, or both.
Meanwhile, investigations into open burning incidents reported in Kuala Tatau-Serupai, Bintulu, and Jalan Tunku Abdul Rahman, Sibu, are ongoing, and legal action will be taken against those found responsible.
Members of the public are urged to report any open burning to the nearest NREB office or via its hotline at 082 447 488 or 082 319 500, with confidentiality assured for all informants.
