With an average duty-span of eight hours a day, traffic policemen are clearly one of the worst hit by vehicular pollution in Kolkata city. A traffic personnel on duty at eh Tollygunge Circular Road
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/living-behind-smoke-screen
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/statesman-kolkata
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/environment