Following a dramatic surge in air pollution, His Majesty Sultan Ibrahim, King of Malaysia, approved an emergency declaration for Serian, Sarawak, on September 4. The Air Pollutant Index at a local monitoring station reached 519, triggering immediate government interventions as toxic transboundary haze grips the region.
What began as a worsening transboundary haze episode across Malaysia culminated in an extraordinary government intervention on Friday, September 4.
Hazardous Air Quality and Record Index Readings in Serian
The emergency declaration covers the entire Serian Division in Sarawak, approved by His Majesty Sultan Ibrahim, King of Malaysia, following rapid consultations between federal and state leaders. According to the Prime Minister’s Office, the decision accounted for the advice of Prime Minister Datuk Seri Anwar Ibrahim and Sarawak Premier Tan Sri Abang Johari Openg alongside relevant agencies.
The catalyst for the declaration was a staggering spike in pollution data. The Air Pollutant Index at the Serian District Police Headquarters monitoring station surged to 519 by 3:50 p.m. on Friday, marking the highest reading recorded nationwide during the current haze episode. Portal data from the Department of Environment’s Air Pollutant Index Management System confirmed that any reading exceeding 300 falls into the hazardous category, creating severe public health concerns across the affected district.
The crisis extended beyond Serian’s borders. Kuching also registered a hazardous reading of 313, marking two distinct areas in Sarawak with index figures above the 300 threshold. Meanwhile, Samarahan recorded 284 and Sri Aman hit 236, both registering as very unhealthy. Additional districts across Sarawak, Sabah, and Johor experienced unhealthy air quality with readings ranging between 101 and 200. Affected areas included Sarikei, Sibu, Mukah, Bintulu, Samalaju, and ILP Miri in Sarawak; Tawau, Politeknik Kota Kinabalu, and Sandakan in Sabah; and Pasir Gudang, Segamat, Kota Tinggi, and Larkin in Johor.
Emergency Protocols and Mitigation Measures Implemented
Under standard disaster management guidelines outlined earlier by Sarawak Disaster Management Committee Chairman Datuk Amar Douglas Uggah Embas, reaching an index reading of 500 triggers localized emergency enforcement through the National Disaster Management Agency. Uggah explained during a press conference after chairing a meeting of the Sarawak Disaster Management Committee that the pengisytiharan darurat hanya melibatkan lokaliti terjejas, bukan seluruh Sarawak. If fully enforced across affected localities, the protocols mandate the closure of all public and private sector offices, permitting only essential services to continue operating.
The government will continue monitoring the situation and ensure all necessary measures are taken immediately, including mitigation measures as well as the dissemination of information and health advisories to the public,
Prime Minister’s Office
The Prime Minister’s Office emphasized that the emergency status allows authorities to execute more effective measures to protect the health and welfare of residents affected by the hazardous air pollution. The government stated that it will continue monitoring developments from time to time to ensure all necessary measures are implemented immediately.
To combat the broader environmental strain, cloud seeding operations were scheduled from September 3 to September 5 as previously scheduled, subject to weather conditions. Uggah noted that these operations serve to reduce the haze and simultaneously help add water sources, including dams and supply sources following the prolonged dry period. State officials noted that four water storage areas experiencing reductions included Simunjan, Lingga, Spaoh, and Lijok.
Regional Diplomacy and Ongoing Surveillance
Because transboundary haze is a regional issue requiring the involvement of governments of the affected countries through designated regional and diplomatic channels, Sarawak disaster management officials established direct communication with federal ministers. State leaders contacted Natural Resources and Environmental Sustainability Minister Datuk Seri Arthur Joseph Kurup, who serves as the deputy chairman of the committee, to raise the current situation and facilitate engagement with Indonesia through established ASEAN channels.
Uggah stated that the Sarawak Disaster Management Committee will continue to cooperate with the federal government to ensure Sarawak’s concerns are conveyed through proper national and ASEAN channels, and any proposals to assist neighboring countries will be considered and coordinated by the federal government through proper government and diplomatic channels. The federal government confirmed that monitoring will continue as authorities evaluate weather patterns and regional air quality.
