“The Great Smog of 1952 was the world’s deadliest air pollution disaster,” said Kate Dawson, senior lecturer in the School of Journalism and author of “Death in the Air: The True Story of a Serial Killer, the Great London Smog, and the Strangling of a City.” “It was unforgiving and nondiscriminatory. 9 is considered one of the most egregious instances of air pollution in London’s history and to have been directly responsible for as many as 12,000 deaths. Known as the Great Smog of 1952, the short period between Dec. In 1952, John Reginald Christie roamed the streets of London plotting murder, while a much more dangerous second assassin filled the air. Evaporation of those fog particles then left smaller acidic haze particles that covered the city.Death in the Air | Moody College of Communication retweet icon bullhorn icon reply icon info icon flickr icon tumblr icon vimeo icon reddit icon podcast icon angle-down icon angle-left icon angle-right icon angle-up icon ban icon hamburger icon book icon bookmark icon bug icon caret-down icon caret-left icon caret-right icon caret-up icon chain icon check icon check-circle icon chevron-down icon chevron-left icon chevron-right icon chevron-up icon circle icon circle-o icon clone icon close icon download-cloud icon code icon download icon ellipsis icon envelope icon warning icon external-link icon eye icon eye-slash icon facebook icon github icon google-plus icon heart icon heart-o icon home icon info-circle icon instagram icon linkedin icon lock icon medium icon minus-circle icon send icon pause-circle icon play-circle icon plus-circle icon question-circle icon quote-left icon quote-right icon rss-square icon search icon share-alt icon slack icon snapchat icon ticket icon twitter icon wheelchair icon youtube icon Weibo Instagram Linkedin flickr Reddit tumblr Twitter Vimeo Youtube Facebook medium Google Plus Natural fog contained larger particles of several tens of micrometres in size, and the acid formed was sufficiently diluted. Another key aspect in the conversion of sulfur dioxide to sulfate is that it produces acidic particles, which subsequently inhibits this process. “Our results showed that this process was facilitated by nitrogen dioxide, another co-product of coal burning, and occurred initially on natural fog. “But how sulfur dioxide was turned into sulfuric acid was unclear.” “People have known that sulfate was a big contributor to the fog, and sulfuric acid particles were formed from sulfur dioxide released by coal burning for residential use and power plants, and other means,” explained Zhang. Through atmospheric measurements of fog in China, and laboratory experiments, Texas A&M researcher Dr Renyi Zhang and his team came up with their answer: nitrogen dioxide converting comparatively benign sulfur dioxide into lethal sulfuric acid. Although the Clean Air Act was passed partly in response four years later, the actual causes of the incident have gone unknown until now. First appearing on 5 December, it lifted four days later with an estimated death toll of at least 12,000 people, with around 150,000 hospitalisations and thousands of undocumented animal deaths. The event in question is the “killer fog” that hit London for several days in 1952.
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