Delhi's air quality continued to be in the "poor" category on Tuesday, a day after it had improved from "very poor" Air Quality Index (AQ1) zone.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/delhis-air-quality-index-stays-poor-category
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/times-india-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/delhi
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-quality-index-aqi
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/central-pollution-control-board-cpcb
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/centre-science-and-environment-cse