The Great London Smog (SMoke + fOG) was the result of coal smoke from fired heating during an unusual cold period combining with the heavy fogs of London. Although smog was not uncommon in London this was an unprecedented event, it lasted from Friday 5 December to Tuesday 9 December 1952. The coal smoke contained sulfur dioxide ans a well as organic (coal tar) compounds which made the mixture acidic and resulted in breathing problems for many. About 4,000 people were known to have died as a result of the fog, this estimate could be considerably loweer than the actual number.
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.
smog was most recent in london so that is what we are learning
London
coal
thw pulltuion idsa me myself and i
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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.
Smog is a layer of low level ozone, consisting of three oxygen atoms singly bonded together, it is formed from oxides of nitrogen and unburnt hydrocarbons, with the energy fro the reaction provided by sunlight.
you tell me
Photochemical smog can occur most anywhere. London-type smog comes from factories and the burning of coal and fossil fuels, where photochemical smog comes from hydrocarbons and nitrogen oxides mixing with sunlight.
The London type of smog (smog "Classic" as opposed to photochemical smog as is popular in other major cities) is the result of coal smoke (particulate matter from incomplete combustion and sulfur dioxide) and fog, The resultant heavy acidic mixture of smoke an dfog an create a number of problems related to acidic precipitation and health problems such as asthma.