Kuala Lumpur, 9 October 2026 – Malaysia has ordered widespread school closures as worsening transboundary haze pushes air quality into unhealthy levels across large parts of the country, disrupting classes for millions of students and renewing concerns over the economic and health costs of regional wildfires.
Schools in Johor, Melaka, Negeri Sembilan and Selangor, together with those in Kuala Lumpur and Putrajaya, were ordered to close, while schools in the Rompin district of Pahang were also affected.
Johor had already begun closing schools earlier in the week as deteriorating air quality spread across the state.
Affected institutions are required to continue teaching through home-based learning, while education authorities monitor pollution levels and determine when it is safe for students to return.
The closures come as haze linked to forest and peatland fires in neighbouring Indonesia continues to drift across the region, affecting Malaysia and other parts of Southeast Asia.
Unhealthy Air Spreads Across Malaysia
Air Pollutant Index readings remained in the unhealthy range across dozens of monitoring stations.
By Friday morning, 38 areas nationwide were recording unhealthy air quality, up from 36 the previous evening.
Seremban in Negeri Sembilan recorded one of the highest readings at 186, while several locations in Johor, Melaka, Selangor and Kuala Lumpur also remained firmly within the unhealthy category.
Johor continued to record some of the most widespread deterioration, with Segamat, Tangkak, Pasir Gudang, Kluang and other districts reporting elevated readings.
Under Malaysia’s air-quality classification, API readings between 101 and 200 are considered unhealthy, while readings above 200 are classified as very unhealthy.
The Education Ministry has instructed state and district education offices to act quickly when conditions deteriorate and to prioritise the health and safety of students and staff.
School Closure Thresholds Tightened
Authorities have also refined the thresholds used to determine when schools should close.
Schools are required to shut if API readings exceed 180, or if levels remain above 150 for three consecutive days.
Outdoor activities are suspended at lower thresholds once conditions become unhealthy.
The policy reflects concern that prolonged exposure, even below the very unhealthy category, can pose risks to children, teachers and people with respiratory conditions.
Education Minister Fadhlina Sidek has acknowledged that closures create logistical problems for parents and employers, particularly where childcare arrangements have to be made at short notice.
The ministry has said future closure decisions will be communicated as early as possible to give families more time to prepare.
Indonesia Wildfires Renew Regional Pressure
The haze is being driven in large part by wildfires in Indonesia, where unusually hot and dry conditions have increased the risk of peatland fires.
Peat fires are particularly difficult to contain because they can burn underground for extended periods and continue releasing smoke even after surface flames appear to have subsided.
Indonesia has been experiencing some of its most severe wildfire conditions in more than a decade, placing renewed pressure on regional governments to address the recurring problem of transboundary haze.
Prime Minister Datuk Seri Anwar Ibrahim has said Indonesia has agreed to take additional steps to address the fires following discussions with President Prabowo Subianto.
The episode once again highlights the difficulty of managing air pollution that crosses national borders and is tied to land management, plantation activity and climate conditions.
Economic Costs Extend Beyond Schools
The immediate impact is being felt most visibly in education, but the economic consequences extend further.
Poor air quality can reduce productivity, increase healthcare demand and disrupt transportation, tourism and outdoor economic activity.
Employers may also face absenteeism or flexible-working requests from parents whose children are unable to attend school.
For sectors such as construction, logistics and tourism, prolonged haze can interfere with normal operations and reduce consumer activity.
Air pollution can also increase pressure on public-health systems, particularly among people with asthma, cardiovascular conditions and other respiratory vulnerabilities.
The Ledger Asia Insights
For Malaysia and the wider ASEAN economy, the latest haze episode is a reminder that environmental risk is increasingly an economic risk.
Transboundary haze is often discussed as a seasonal health problem, but its effects extend into productivity, education, labour availability and business continuity.
The closure of schools across major population centres illustrates the scale of disruption that can occur before pollution reaches officially hazardous levels.
For businesses, this strengthens the case for flexible-work policies and operational contingency planning during severe environmental events.
For governments, the challenge is regional.
Malaysia can manage school closures and public-health responses, but it cannot solve the root causes of haze alone.
Preventing a repeat requires stronger cooperation on peatland restoration, fire prevention, plantation practices and enforcement across borders.
Climate conditions may make that task more difficult. Hotter and drier weather increases the probability that existing fire-prone areas will burn again, particularly where peat ecosystems have already been degraded.
The economic lesson is therefore broader than the current school closures. Southeast Asia’s rapid growth remains dependent on environmental resilience. When wildfire smoke can keep millions of students at home, disrupt workplaces and degrade air quality across multiple states, haze is no longer simply an environmental externality. It becomes a direct constraint on human capital, productivity and regional economic stability.
