LUCKNOW: Kanpur and Lucknow were the most polluted cities in the country on Sunday. Industrial city Kanpur had the most toxic air with Air Quality Index (AQI) of 373.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/kanpur-lucknow-most-polluted-cities
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/times-india-lucknow
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/uttar-pradesh
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/lucknow-t
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/kanpur-t
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-quality-index-aqi
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-quality-monitoring