About 33.6% of COPD (chronic obstructive pulmonary disease) (DALYs) could be attributed to ambient air pollution, 25.8% to household air pollution and 21% to smoking.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/india-bears-32-cent-global-burden-respiratory-diseases-global-burden-disease-study
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/indian-express-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/respiratory-diseases
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/indian-council-medical-research-icmr
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health-effects
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/lung-disease