The Great Smog of London 1952

‘The smog of London’ or ‘The Great Smog’ is the biggest air pollution incident that happened in London on Friday 5th until Tuesday 9th December 1952. It was caused by the cold weather and the anticyclone meteorology phenomenon, and beside of that the air pollution is also caused by an exaggerated use of coal.
This incident wasn’t considered as a dangerous event on that time, but it turned out that this phenomenon had a great impact on environmental research, government regulation, and public health. This incident cause 4000 deaths and more than 100.000 respiratory disorder on many people. But later it was discovered that there are 12.000 deaths caused by the great smog. Most of the victims were caused by respiratory tract infections, from hypoxia and as a result of mechanical obstruction of the air passages by pus arising from lung infections caused by the smog.Most of the victims were very young or elderly, or had pre-existing respiratory problems.
This incident made a change on Government Regulations about clean air, including the legalization of the Government Regulation about clean air on 1996.
This killer fog is not a well-remembered event,but it change the way we looks at polution.
As said by many witnesses, the first attack of the smog (4 - 5 December 1952) was horrible . It was like somebody had set a lot of tires on fire. Since the 13th century, London has anguished from poor air quality. But, The Great Smog was the worst air pollution in the history of the United Kingdom. This incident, made the most significant effect on government, environment, and public awareness of relationship between air quality and health.
Because of The Great Smog, driving felt so difficult and impossible because our visibility reduced to a few meter that made you felt like you were blind. Many of public transportation in London had discontinue, ambulance service stopped, forcing users to transport themselves to the hospital. Outdoor sport events had also cancelled too. On that day, reported to 500 people died in London. A lot of people’s lips were blue because of the toxic smog.
On the next day, 6 December 1952, the fog got worst. The smog already got into the underground transportation and severely fill with smog. Even, if we walk around on London that time, we couldn’t see our own feet.
7 December 1952, forth day this smog attacked London, the visibility was reduced for 2 meters to just a meter. we could only seee only less than an arm’s lenght. Many people left their cars because they couldn’t see wherever they were going. Public transport also ceased because of this. Ambulance services suffered a lot because they had so much things to do but they only could see a meter while driving.
8 until 9 Decemer 1952, many hospital there were full with some patients hospitalizations because the respiratory tract infections such as asthma, pneumonia, and even bronchitis.
Though the fog lasted until December 9 1952, the severity of this incident wasn’t fully recognized until registar general published about the number of fatalities and also number of died caused a few weeks later. 
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. Government were offered householders to replace coal fires with some alternatives which could produces minimal smoke. Many efforts have been made to improve London air quality. Despite improvements, insufficient progress had been made to prevent one further smog event approximately ten years later.