The Po Valley is the most polluted region in Europe 

What you see in the video is nothing more than the pall or smoke screen of smog and pollution that stagnates almost constantly in the so-called Po Valley.
The Po Valley, between the Alps and the Apennines, far from the coast and with little wind, is highly industrialized and is therefore more exposed to air pollution. Area flown over with DJI Mavic 3 Pro drone
DRONE ▶ amzn.to/3RJCVmO
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