In brief
Indonesia reported 5,310 air‑pollution related deaths in September, up 42 % from 3,740 in August. The rise was largely caused by smoke from forest and land fires, amplified by an El Niño‑driven drought. Health authorities also recorded 333,470 acute respiratory infections linked to these fires, while 57.8 million people were exposed to unhealthy air nationwide.
Indonesia’s latest health report declares a 42 percent rise in air‑pollution related deaths for September, with the toll climbing from an estimated 3,740 in August to 5,310.
The Center for Research on Energy and Clean Air (CREA), a Helsinki‑based organization, attributes the surge to smoke produced by extensive forest and land fires. In September, these fires were estimated to have caused 3,560 deaths, roughly double the August figure, while chronic emissions from urban and industrial sources added another 1,750 fatalities.
CREA’s analysis reveals striking regional disparities. In four provinces of Kalimantan, toxic fire smoke accounted for between 94 percent and 99 percent of air‑pollution deaths. Similar patterns appeared in several provinces of Sumatra, where more than 80 percent of fatalities were linked to fire‑generated haze. In contrast, Java’s death rate largely stemmed from non‑fire sources, underlining a disproportionate health burden outside major urban centers.
Beyond mortality, health impacts extended across the island. An estimated 57.8 million Indonesians were exposed to what CREA classified as unhealthy or hazardous air in September alone. The ministry of Health documented 333,470 cases of acute respiratory infection directly associated with forest and land fires across affected regions.
Central to CREA’s conclusions is the role of climate. El Niño, a naturally occurring atmospheric phenomenon that brings prolonged dry spells, intensified drought conditions in the country’s northern and central regions. The resulting dry landscapes made forest and peatland ecosystems more susceptible to ignition, creating a vicious cycle of fire and air pollution.
Peatlands, which store vast amounts of carbon, were singled out as a critical vulnerability. When drained or burned, they release significant quantities of particulate matter into the atmosphere. The report calls for comprehensive peatland restoration efforts to curb future emissions.
CREA also urged strengthened enforcement against illegal land clearing, a practice that often initiates the fires that drive the deadly haze. By tightening legal oversight and promoting sustainable land management, authorities could mitigate both environmental degradation and human health risks.
From a public health perspective, the findings underscore the urgency of integrating climate action with medical preparedness. Hospitals in highly affected provinces may face heightened patient loads due to respiratory illnesses, while health ministries should consider expanding air‑quality monitoring to provide early warnings.
Economically, the haze imposes costs on various sectors—from reduced agricultural productivity due to crop damage to decreased tourism revenue when visibility is compromised. A future assessment of these indirect impacts could guide more targeted investment in preventive measures.
Overall, the surge in air‑pollution deaths highlights how climate‑driven disasters amplify public health crises. The CREA report urges a coordinated national response that combines fire prevention, ecological restoration, and stricter land‑clearing regulations to break the deadly link between fires and human mortality.


