smog was an issue that got so bad that in the 1950 and 1960 people died from breathing it. ( London England ) To reduce smog the American government brought in anti pollution regulations. Some of the most significant and noticeable govern the pollution output of automobiles.
It no longer exists/happens but in the days when London houses used coal fires to heat homes, the coal smoke mixed with normal fog to produce what was called "smog" (smoke and fog). It was very thick and very bad for health. London no longer has "smog" events because it no longer allows chimneys to emit smoke.
There hasn't been a smog in London for about 50 years.
London-type smog is caused mainly by air pollution due to combustion of coal and emission of sulfur dioxide and dust. London smog has humid, foggy, stagnant air.
Interesting and very difficult to put into x amount of letters.
smog was most recent in london so that is what we are learning
Great Smog happened in 1952.
It was estimated that 4,000 people died and 100,000 were made ill
London
coal
thw pulltuion idsa me myself and i
My granddad :)