• What are the world's fog cities called (which cities were once known as fog cities?)

The world's fog capital is called (Which cities were once known as fog capitals?)

Fog is a natural phenomenon that is formed due to the condensation of water vapor in the air. In some areas, due to climate, topography and other factors, fog will appear frequently and even become the iconic feature of these areas. Therefore, some cities are known as "fog cities". So, which cities were once known as the fog capitals of the world?

London

London is one of the most famous foggy cities in the world. In the 19th and early 20th centuries, London's fog was so thick that it sometimes lasted for days. This fog, known as "smog," is caused by pollutants from burning fuels such as coal and wood. This haze not only affects people's health, but also causes many traffic accidents and aviation accidents.

In the mid-20th century, as London's industry declined, so did the smog. However, London's fog remains a famous feature, especially in autumn and winter.

Shanghai

Shanghai is a famous foggy city in China. Because Shanghai is located in the Yangtze River Delta, the climate is humid, coupled with the city's industrial pollution and traffic congestion, the fog in Shanghai is very thick. On some days, visibility in Shanghai is less than 100 meters.

In order to improve air quality, the Shanghai Municipal Government has taken a series of measures, such as restricting vehicle traffic and closing factories. These measures have achieved certain results, reducing the haze in Shanghai.

San Francisco

San Francisco is a famous foggy city in the United States. San Francisco is located in the Bay Area of ​​California. Its humid climate, coupled with the mountains surrounding the bay, makes fog often appear there.

The fog in San Francisco is called "Carr's Fog" and is caused by the climate and topography of the Bay Area. This fog, which usually appears in the morning and evening, has had a certain impact on San Francisco's urban landscape and tourism.

Beijing

Beijing is the capital of China and a famous foggy city. Due to Beijing's climate and geographical conditions, the fog in Beijing is very thick. On some days, visibility in Beijing was less than 50 meters.

In order to improve air quality, the Beijing municipal government has taken a series of measures, such as restricting vehicle traffic and closing factories. These measures have achieved certain results, reducing smog in Beijing. In addition, Beijing has also adopted some technological means, such as air purifiers and artificial rainfall, to improve air quality.

Conclusion

The above are some of the famous foggy cities in the world. The fog in these cities is not only aA natural phenomenon and an iconic feature of the city. However, due to industrial pollution, traffic congestion and other factors, fog has also brought many problems to the city. Therefore, we should take some measures to improve air quality and protect our environment.