Indoor air pollution deaths
This post may contain affiliate links. As an Amazon Associate, we earn from qualifying purchases.
3.2 billion people burn coal and wood to meet their necessary energy requirements. Indoor air pollution from burning coal and wood contains a mixture of health-damaging pollutants including carcinogens. Each year, 1.6 million people perish from inhaling indoor pollutants (2.9 percent of all deaths).
Indoor air pollution deaths per million people

The Institute for Health Metrics and Evaluation evaluates the disease burden attributable to household air pollution from ischemic heart disease, stroke, chronic obstructive pulmonary disease, lower respiratory diseases, and type two diabetes using the same exposure-response relationships used to estimate the burden from exposure to ambient PM2.5 air pollution. Based on the modern knowledge of its health impacts, household air pollution ranks amongst the most significant global risk factors for early death and disease.