NEW DELHI, Dec. 7 -- A large part of India's population would have lived seven months longer and contributed over a thousand healthy life years to the economy if it wasn't exposed to high household air pollution levels in 2017, a study published in The Lancet Planetary Health journal on Thursday said.

According to the India State-Level Disease Burden Initiative's study on the impact of air pollution on death and the disease burden in India for 2017, at least 50% of the country's population is dependent on solid fuels like wood, dung, agricultural residue, coal and charcoal for cooking and heating.

In states with comparatively low social and development status like Bihar, Jharkhand and Odisha, over 75% population is dependent on solid fuel...