The pledge by local residents to celebrate a pollution-free Diwali went in vain as crackers were burst recklessly in a number of residential areas in Dehradun.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/pollution-level-rises-diwali
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/tribune-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/uttaranchal-uttarakhand
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/dehradun-t
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/diwali
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/nitrogen-dioxide
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health-effects