The city has been enveloped in a heavy layer of smog caused by a fire last week at the Deonar dumping ground.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/expert-tips-deal-choking-air-pollution
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/times-india-mumbai
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/maharashtra
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/mumbai
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health-effects
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/municipal-corporation
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-quality-index-aqi
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/pm-25
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-quality-standards
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/asthma
[12] http://admin.indiaenvironmentportal.org.in/category/thesaurus/respiratory-diseases