Delhi is enjoying its cleanest February in three years as far as the air index quality is concerned.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/breath-fresh-air-delhi-enjoys-cleanest-february-three-years
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/financial-express-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-pollution-control
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/environment-pollution-control-authority-epca
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/central-pollution-control-board-cpcb
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-quality-standards