Interim report by board could not identify the source of around one-fifth of Calcutta’s PM2.5 pollution
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/environmentalists-question-bengal-pollution-control-boards-pm25-findings
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/telegraph-kolkata
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/west-bengal
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/pm-25
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/kolkata
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/national-envirnmental-engineering-research-institute-neeri