The Tamil Nadu Pollution Control Board will set up 24x7 care air centres at two locations in the city in a month's time to monitor the ambient air quality.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/two-air-quality-monitoring-centres-be-set-coimbatore
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/times-india-coimbatore
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/tamil-nadu
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/coimbatore-d
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-quality-monitoring
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution