Links:
[1] http://admin.indiaenvironmentportal.org.in/news/meet-discusses-adverse-effects-pollution
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/assam-tribune-guwahati
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/carbon-monoxide
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/carbon-dioxide
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/environment-education
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/assam