The Bay of Naples is still breathtaking if you can see it through the smog and the smoke from Vesuvio.
The rain has a way of cleaning the dust and smog out of the air making things appear especially vivid and clear.
The clouds of smog and smoke did block out a good bit of the sun, meaning it shouldn't be too hot for travel.
As a source of smog and a severe global warming aggravator, coal is still king.
All I remember in the air in 1977 was smog from all the coal-burning chimneys.
Cars and trucks are major contributors to smog which is a serious health problem in Central and Eastern Canada.
As I look out of my window now, I see a layer of thick smog clinging to the buildings around the city.
exhaust emissions are mainly responsible for the smog
The size and shape of the various buildings can also affect wind patterns, causing perfect conditions for smog to occur.
The infamous London smog is an example of extreme air pollution.