Links:
[1] http://admin.indiaenvironmentportal.org.in/reports-documents/breakthroughs-china%E2%80%99s-path-clean-air-2013-2017
[2] http://www.indiaenvironmentportal.org.in/files/file/Breakthroughs_ChinasPathtoCleanAir2013-2017.pdf
[3] http://admin.indiaenvironmentportal.org.in/category/publisher/clean-air-asia
[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/china
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/pm-25
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/urban-air-quality