When you hear the words "pea soup", you probably think of, well, pea soup. But pea soup is also the name of a particular type of thick fog, and in the early 20th century London was literally drowning in it.


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Also known as black fog or killer fog, it's caused by soot particles and poisonous sulfur dioxide produced by the burning of soft coal in homes and factories. The fog is potentially lethal, especially for the elderly and those with respiratory problems, and as you can see from these vintage photographs, there was no way to escape it. The choking pollution culminated in the Great Smog of 1952, and although the Clean Air Act was implemented just four years later, an estimated 12,000 people are believed to have died as a result of the hazardous air pollution. (h/t: vintage everyday)

#4 Lincoln’s Inn Fields, 24 January 1934

Lincoln’s Inn Fields, 24 January 1934

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Tulip 10 months ago

Mr. Holmes in London :)

#5 Central London, January 1936

Central London, January 1936

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Kushal Ghosh 10 months ago

The poster " WANTED FOR MURDER " :O

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#7 National Gallery, Trafalgar Square, 1 December 1948

National Gallery, Trafalgar Square, 1 December 1948

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Helga Novelli 10 months ago

They knew how to decorate the Christmas tree in Trafalgar Square at that time!

#12 A Young Couple During The Great Smog, 1952

A Young Couple During The Great Smog, 1952

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Misty Pal 10 months ago

Great smog LOL bet ya it would be like clean air to us city folk today

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