But Even Though PM 2.5 Level Fell, It Only Meant Delhi's Air Was Less Dirty, Not Clean
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/delhi-breathed-easier-jan-apr
[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/indian-meteorological-department-imd
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/centre-science-and-environment-cse