Air quality continues to a point of concern with the air quality index (AQI) on Sunday oscillating between "poor" and "very poor" levels due to local pollutants.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/air-quality-swings-between-poor-very-poor
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/tribune-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/delhi
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-quality-index-aqi
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/central-pollution-control-board-cpcb
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/pm25
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/rspm-pm-10