Centre cites more studies to oppose ban
![](http://admin.indiaenvironmentportal.org.in/files/Vehicular_Poll_17.jpg)
The Union transport ministry on Monday once again referred to a couple of scientific studies to back their argument that vehicles were not a major source of PM 2.5 emissions.
Publication Date:
26/05/2015
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The Union transport ministry on Monday once again referred to a couple of scientific studies to back their argument that vehicles were not a major source of PM 2.5 emissions.