Classical smog was first observed in?
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Classical smog, also known as London smog or sulfurous smog, was first observed in London, England. The most notable and severe occurrence of classical smog, often referred to as the “Great Smog of London,” occurred in December 1952. During this event, a combination of cold weather, windless conditions, and widespread use of coal for heating led to a buildup of sulfur dioxide (SO2) and particulate matter in the air.
The Great Smog of London lasted for several days and caused severe health impacts, resulting in thousands of deaths and illnesses attributed to respiratory problems. This event prompted significant public and governmental awareness of air pollution and eventually led to changes in policies and practices related to coal use and air quality regulations.
The occurrence of classical smog in London in 1952 is widely recognized as a pivotal event in the history of air pollution awareness and environmental policy, highlighting the dangers of air pollution and the need for measures to control emissions for public health protection.