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Transcript of LONDON SMOG
Giant smog event of serious air pollution affecting London in December 1952. From January 5 to December 8, 1952 was a period of cold weather, combined with an anticyclone and windless conditions, collecting air pollutants mainly from the use of coal to form a thick layer of fog across the city. This time it's winter, the air temperature is very low, wet and air pressure that weighs on the sky, making London a couple of days were dense cloud cover and do not see the sun. Thousands of thousands of smokestacks from the coal management still blowing smoke into the sky, the special column of black smoke, soot concentrations 10 times the normal, SO2 concentrations 6 times, Fe2O3 in smoke reacts with CO2 in the air gas bubbles generated H2SO4, condensed in the clouds of acid fumes. Giant smog phase lasted from Friday 5th to Tuesday December 9, 1952, and then disperse quickly after a change of weather.
Tuesday, november 7, 2016
the world has undergone a lot of catastrophe which effected seriously on our future. One of the most dangerous disasters in the historical of human is the London smog or Great smog of 1952 was a reveve air pollution even that effected London during 1952.
Although it caused major disruption due to the effect on visibility, and even penetrated indoor areas, it was not thought to be a significant event at the time, with London having experienced many smog events in the past, so-called "pea soupers". Government medical reports in the following weeks estimated that up until 8 December 4,000 people had died prematurely and 100,000 more were made ill because of the smog's effects on the human respiratory tract. More recent research suggests that the total number of fatalities was considerably greater, at about 12,000.
It is known to be the worst air-pollution event in the history of the United Kingdom, and the most significant in terms of its effect on environmental research, government regulation, and public awareness of the relationship between air quality and health. It led to several changes in practices and regulations, including the Clean Air Act 1956.
New regulations were implemented, restricting the use of dirty fuels in industry and banning black smoke.
Environmental legislation since 1952, such as the City of London (Various Powers) Act 1954 and the Clean Air Acts of 1956 and 1968, led to a reduction in air pollution. Financial incentives were offered to householders to replace open coal fires with alternatives (such as installing gas fires), or for those who preferred, to burn coke instead which produces minimal smoke. Central heating (using gas, electricity, oil or permitted solid fuel) was rare in most dwellings at that time, not finding favour until the late 1960s onwards.
he death toll formed an important impetus to modern environmentalism, and it caused a rethinking of air pollution,