India figures among countries with stringent air quality laws and regulations
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/air-pollution-levels-8-un-report
[2] http://admin.indiaenvironmentportal.org.in/category/author/r-krishna-kumar
[3] http://admin.indiaenvironmentportal.org.in/category/newspaper/hindu-new-delhi
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-quality-standards
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/india
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vehicular-pollution
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/who
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/unep
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/public-transport