The Regional Transport Office (RTO) has procured a portable pollution testing machine in a bid to rein in polluting diesel vehicles plying on city roads.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/doon-rto-gets-its-first-portable-pollution-testing-device
[2] http://admin.indiaenvironmentportal.org.in/category/author/gaurav-talwar
[3] http://admin.indiaenvironmentportal.org.in/category/newspaper/times-india-dehradun
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/uttaranchal-uttarakhand
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vehicular-pollution
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/diesel
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/heavy-duty-vehicle