Aerial pollution (4)
I believe the answer is:
smog
(Other definitions for smog that I've seen before include "Pollutant haze" , "Smoky haze" , "Polluted atmosphere" , "Bad visibility caused by emissions from chimneys" , "Thick polluted mist" .)
I believe the answer is:
smog
(Other definitions for smog that I've seen before include "Pollutant haze" , "Smoky haze" , "Polluted atmosphere" , "Bad visibility caused by emissions from chimneys" , "Thick polluted mist" .)