Why are non-smokers getting lung cancer?

Doctors raise concern over rising cases, suspect increased exposure to air pollution as the primary reason

Lung cancer, long known to affect smokers, is seeing a significant rise in people who do not smoke, said doctors, raising concern over the shift.

According to health experts, increased exposure to air pollution is the major reason. A recent research, published in the Lancet's eClinical Medicine Journal showed that a majority of lung cancer patients in India are non-smokers. The study noted that lung cancer cases are also manifesting in India about 10 years earlier as compared to Western countries.