NEET BIOLOGY

Detailed explanation-1: -The Great Smog of London, or Great Smog of 1952, was a severe air pollution event that affected London, England, in December 1952.

Detailed explanation-2: -Great Smog of London, lethal smog that covered the city of London for five days (December 5–9) in 1952, caused by a combination of industrial pollution and high-pressure weather conditions. This combination of smoke and fog brought the city to a near standstill and resulted in thousands of deaths.

Detailed explanation-3: -On December 5, 1952, fog descended upon the city of London. This was not unusual, as it was winter, and the capital was known for its misty weather. However, the fog later turned into smog as a result of mixing with smoke from coal-burning factories and chimneys, and diesel-fueled automobiles and buses.

Detailed explanation-4: -Heavy smog begins to hover over London, England, on December 4, 1952. It persists for five days, leading to the deaths of at least 4, 000 people. It was a Thursday afternoon when a high-pressure air mass stalled over the Thames River Valley.

Detailed explanation-5: -The smog developed primarily because of extensive burning of high-sulfur coal. The health effects were both immediate and long lasting, with a recent study revealing an increased likelihood of childhood asthma development in those exposed to the Great Smog while in utero or during their first year of life.