While industries, power plants, mines and vehicles are blamed for increasing exposure to air pollution, there are many lesser-known sources which are significantly poisoning the quality of air.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/nagpur-air-quality-bad-due-thermal-power-stations%E2%80%99
[2] http://admin.indiaenvironmentportal.org.in/category/author/manka-behl
[3] http://admin.indiaenvironmentportal.org.in/category/newspaper/times-india-nagpur
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/maharashtra
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/nagpur-t
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/industrial-pollution
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/thermal-power-plants
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-quality-standards
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/who
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health-effects