NEW DELHI: Delhi's air quality was recorded in the "poor" category on Sunday despite an "unusual improvement" due to increased wind speed, favourable for dispersion of pollutants, authorities said.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/unusual-improvement-delhis-air-quality-still-poor-category
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/times-india-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-quality-index-aqi
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/rspm-pm-10
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/central-pollution-control-board-cpcb