Two safai karmachari with the Public Works Department (PWD), Delhi, died a tragic death on Thursday afternoon when the sewer they were working on in the Model Town area started emanating poisonous gases and they inhaled the same.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/two-pwd-workers-die-while-cleaning-sewer
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/pioneer-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/sewage-pollution
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/drainage
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/occupational-health
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/poisonous-gases
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/delhi