Household air pollution still kills millions of people every year, even as exposure levels fall worldwide, a new study has found.
In 2021, household air pollution – which occurs when people cook with open fires or stoves fuelled by kerosene, coal, wood, crop waste, or animal dung – contributed to 3.1 million deaths worldwide, with most deaths in lower-income countries, according to the analysis published in The Lancet medical journal.
