Delhi-NCR's recurring winter smog is not caused by a single source. Vehicle emissions, industrial activity, construction dust, agricultural residue burning and firecrackers add to pollution, while low wind speeds and temperature inversion prevent pollutants from dispersing. 
Delhi-NCR's recurring winter smog is not caused by a single source. Vehicle emissions, industrial activity, construction dust, agricultural residue burning and firecrackers add to pollution, while low wind speeds and temperature inversion prevent pollutants from dispersing. 
<iframe src="https://hindustansphere.com/embed/cluster/8002074a3b5d411e02a879deaf48bc02f87f8926" width="100%" height="320" style="border:0;max-width:680px" loading="lazy" title="Decoded: Why Delhi keeps choking every winter — role of traffic, regional pollution, firecrackers and stubble burning"></iframe>
Delhi-NCR's recurring winter smog is not caused by a single source. Vehicle emissions, industrial activity, construction dust, agricultural residue burning and firecrackers add to pollution, while low wind speeds and temperature inversion prevent pollutants from dispersing.&nbsp;
