"Globally, air pollution has been identified as a major risk factor for premature mortality and morbidity; it caused an estimated 6.7 million deaths in 2019. The burden of disease falls particularly heavily on low- and middle-income countries, where the exposure levels tend to be significantly higher.
Bangladesh is among the hardest hit. The country was ranked as the most polluted country in the world between 2018 and 2021; its capital, Dhaka, was ranked as the second-most polluted city. In 2019, air pollution was the second-largest risk factor for deaths and disability in the country. Four of the top five causes of total deaths were directly associated with air pollution—stroke, ischemic heart disease, chronic obstructive pulmonary disease, and lower respiratory tract infection. The most vulnerable populations are children, the elderly, and people with underlying health conditions. Higher rates of mortality and morbidity are further compounded by substantial associated economic costs.
Global evidence on
