Disability adjusted life years or DALYs are years of healthy life lost to premature death and suffering.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/air-pollution-key-risk-factor-lung-disease
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/asian-age-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/non-communicable-diseases
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/indian-council-medical-research-icmr
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/respiratory-diseases
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health-effects