Chennai: The TN State Pollution Control Board (TNPCB) will set up continuous ambient air quality monitoring stations in 20 districts across the state.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/air-quality-monitoring-stations-20-districts
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/times-india-chennai
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/tamil-nadu
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-quality-monitoring
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/state-pollution-control-board-spcb-0
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/nitrogen-dioxide
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/carbon-monoxide