Indonesia wildfire smoke caused 3,560 deaths in September, study finds

Phys.org · 2026-10-30
Indonesia wildfire smoke caused 3,560 deaths in September, study finds

Smoke from months of wildfires across Indonesia led to an estimated 3,560 deaths in September, according to a new study. The research highlights the severe health impact of air pollution from land and forest fires that have become an annual crisis in Southeast Asia. The fires, often set to clear land for palm oil and pulpwood plantations, release massive amounts of fine particulate matter (PM2.5) that can penetrate deep into the lungs and bloodstream. The study, which analyzed satellite data and health models, found that the death toll in September alone rivals the total number of deaths from the entire 2015 fire season, one of the worst on record. Indonesia's disaster agency has struggled to contain the blazes, which have also forced school closures and flight cancellations across the region. The findings underscore the urgent need for stronger enforcement of fire bans and sustainable land-use policies to protect public health in Indonesia and neighboring countries.