Howrah: The average air quality index (AQI) of Howrah, home to Bengal's administrative headquarters, during the week starting January 15 was found to be worse than Delhi's.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/howrah-beats-delhi-foul-air-meter
[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/kolkata
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-quality-index-aqi
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-quality-monitoring