Green groups were not happy with the drop in pollutants and said interdepartmental cooperation should be strengthened.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/bad-air-days-increased-pollution-hong-kong%E2%80%99s-eastern-districts-still-better-west-despite
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/south-china-morning-post
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/china
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/hong-kong
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ozone
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-quality-monitoring
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/pm-25
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health-effects