Kolkata is the most polluted metropolis in the country with its pollution levels recorded highest among eight tropical Asian countries, according to study.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/kolkata-most-polluted-metro-india-has-highest-pah-level-study
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/zee-news
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/west-bengal
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/kolkata
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/organic-pollutants
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/pollution
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/environmental-health
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health-effects
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/cancer
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/obesity
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/diabetes
[12] http://admin.indiaenvironmentportal.org.in/category/thesaurus/industrial-pollution
[13] http://admin.indiaenvironmentportal.org.in/category/thesaurus/environment