KOLKATA: The city's air was more toxic than Delhi's on four days last week.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/kolkata-air-more-polluted-last-week-delhis
[2] http://admin.indiaenvironmentportal.org.in/category/author/krishnendu-bandyopadhyay
[3] http://admin.indiaenvironmentportal.org.in/category/newspaper/times-india-kolkata
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/west-bengal
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/pm-25
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/kolkata
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/national-green-trbunal-ngt
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/centre-science-and-environment-cse
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vehicular-pollution
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/diesel