Question

Name the various air pollutants discharged by motor vehicle exhausts.

Answer 1

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Carbon dioxide, carbon monoxide, oxides of nitrogen, hydrocarbons and particulates are the various pollutants coming from Vehicles. 
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Answer 2

They are :-

carbon monoxide (CO) ,nitrogen oxides (NOx),volatile organic compounds (VOC) , all emissions of particles smaller than 2.5 microns (PM2.5) ,all emissions of particles smaller than 10 microns (PM10) ,sulfur dioxide (SO2)