KOLKATA: City residents on Sunday hit the streets to spread awareness on the dangers of Kolkata's declining air quality index.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/kolkatans-walk-cleaner-air-ask-urgent-action
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/times-india-kolkata
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/west-bengal
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/kolkata
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/pm-25
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-quality-index-aqi