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The Great London Smog: How the weather conspired to kill 12,000 people
On Dec. 4, a high pressure system moved in, reducing winds and trapping the smog for days, causing "pea-soup" conditions where the smog appeared yellow or green due to sulphur pollutants.
University of Wyoming4y
College of Engineering and Physical Sciences
From my Ph.D. “The Sources and Behavior of Selected Urban Air Pollutants” my data, including the last significant “pea soup” smog event in London, was used to define new ambient air quality standards ...