CHENNAI: The level of total suspended particulate matter (TSPM) in the ambient air at a traffic intersection in Vallalar Nagar during the 24-hour period ending 6 a.m. on Tuesday was 312 microgram/cubic metre. The permissible limit is 200 microgram/cubic metre.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/air-quality
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/hindu-chennai
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vehicular-pollution
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/urban-air-quality
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/spm
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-quality-monitoring
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/tamil-nadu
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/chennai-t