A study by the Central Pollution Control Board (CPCB) has identified 41 Indian cities where the air quality is poor. Coupled with water pollution, the resultant health hazards are many.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/increasing-pollution-underlines-need-health-insurance
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/economic-times-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health-insurance
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/respiratory-diseases
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/central-pollution-control-board-cpcb
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/centre-science-and-environment-cse
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health-effects