Portafolio De Biologia
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Publicado: 8 de noviembre de 2012
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500 years ago in Britain, the burning of coal was increasing in cities like London. Coal was used in factories and also usedto heat homes.
Coal, when burnt makes a lot of smoke, which makes the air very dirty.
About 200 years ago, theIndustrial Revolution began inBritain. Factories were built, and even more coal was burnt. Air pollution was becoming a really big problem, especially when the weather wasfoggy. With foggy conditions and light winds the smoke or air pollution covered the whole city, and would not move.
Smoke and fog together createsmog.
Smog was a big problem in the winter. Because of the cold weather, more coal was burnt to warm houses and this made more smoke.
Whensmog was stuck over a city, it became really hard to breathe and see clearly. In 1952, the Great London Smog occurred and more than 4000 peopledied because of the smog!
New laws were created from this catastrophe in 1956 and 1968, so that it would not happen again. These laws are calledthe 'Clean Air Acts'.
These laws were made so that air would become cleaner. The laws encouraged people to use less coal or use cleanercoal in their homes and switch to other fuels such as gas. Factories started using tall chimneys so that the smoke would go high up in the skyand no longer cover cities, and new factories were built outside cities in the countryside. Smog occurred less often and the air became cleaner.
500 years ago in Britain, the burning of coal was increasing in cities like London. Coal was used in factories and also usedto heat homes.
Coal, when burnt makes a lot of smoke, which makes the air very dirty.
About 200 years ago, theIndustrial Revolution began inBritain. Factories were built, and even more coal was burnt. Air pollution was becoming a really big problem, especially when the weather wasfoggy. With foggy conditions and light winds the smoke or air pollution covered the whole city, and would not move.
Smoke and fog together createsmog.
Smog was a big problem in the winter. Because of the cold weather, more coal was burnt to warm houses and this made more smoke.
Whensmog was stuck over a city, it became really hard to breathe and see clearly. In 1952, the Great London Smog occurred and more than 4000 peopledied because of the smog!
New laws were created from this catastrophe in 1956 and 1968, so that it would not happen again. These laws are calledthe 'Clean Air Acts'.
These laws were made so that air would become cleaner. The laws encouraged people to use less coal or use cleanercoal in their homes and switch to other fuels such as gas. Factories started using tall chimneys so that the smoke would go high up in the skyand no longer cover cities, and new factories were built outside cities in the countryside. Smog occurred less often and the air became cleaner.
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