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	Podcast:		Witness
	Episode:		The Great London Smog
	Category:		Society & Culture
	Duration:		00:09:37
	Publish Date:		2017-12-14 02:50:00
	Description:		Thousands died as a thick polluted fog engulfed London in 1952. People with respiratory and cardiovascular conditions were most at risk. The smog was a combination of pollution from millions of coal home fires and freezing fog. Unusual atmospheric conditions trapped the pall over the city for four days. The civil disaster changed Britain. Two years later, the government passed the Clean Air Act to reduce the use of smoky fuels such as coal. Alex Last speaks to Dr Brian Commins, who worked for the Medical Research Council's Air Pollution Unit set up at St. Bartholomew's hospital in London in the 1950s. Photo: A London bus conductor is forced to walk ahead of his vehicle with a flare to guide it through the smog, 9th December 1952. (Photo by Keystone/Hulton Archive/Getty Images)
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