Why is Hong Kong called Hong Kong? The air quality in Hong Kong is too bad.

To put it simply, it is mainly because Hong Kong is vast and sparsely populated, and the early buildings were poorly planned, because it seems that the concept of screen building did not appear until the 1980s and 1990s. Simply put, the houses in Hong Kong are tall and dense, blowing part of the ocean onto the windshield of the land, just like a hillside, especially on both sides of Victoria Harbour. Originally, this port was very big, but it was in a prime location in Hong Kong, so it kept reclaiming the sea and then built skyscrapers again and again. In this way, it is difficult for the wind to blow into the city naturally. Secondly, Hong Kong's economy is developed and there are many people and cars. According to TV reports, the speed of Hong Kong during busy hours is 13- 15km/h, and traffic jams will emit exhaust gas, but the wind can't blow in, so the air quality is naturally poor. In addition, due to development, many rural areas have become real estate. .

However, according to the data of Hong Kong Environmental Protection Department, compared with the 1990s, the air quality in Hong Kong has been much better. Because Hong Kong is really rich, their relevant departments will subsidize some "stable cars" (that is, buses, trucks and other work vehicles) to replace more environmentally friendly models, with EU emission standards, tax exemption, subsidies, and electronic exhaust monitoring. Just like speeding photos, any car that does not meet the emission standards will be punished immediately by recording the license plate.

In addition, Hong Kong also has a central refrigeration system to prevent many commercial and residential buildings from installing air conditioners themselves to further aggravate the heat island effect. Similar to that in Japan, the air conditioning and refrigeration of all nearby buildings are through the central refrigeration system. The central refrigeration system can be upgraded according to needs, and it is said that seawater is used to help dissipate heat, which is very efficient.

In addition, the planning has learned the lessons of the screen building, and now many places that have been rebuilt avoid building the screen building.

Moreover, Hong Kong's industries gradually moved to Chinese mainland after the 1990s. There is basically no industry in Hong Kong, mainly financial services, and the air quality has been further improved. . .