Sanya weather pm2.5

The latest national air quality ranking has been released. The first city is Haikou, with the best overall quality in China, and the worst urban air quality is Zibo. The average air quality in Haikou is 15 days, and the air quality is excellent 13 and 14 days. Even if the air quality is not good, it is good, and the air quality index is very high. Haikou, known as the Coconut City, is the capital of Hainan Province and the strategic fulcrum city of the National Belt and Road Initiative.

Because Haikou is located in the tropics and belongs to a coastal city, the urban green coverage rate is very high. It was selected by the World Health Organization as the first batch of world healthy cities in China. Haikou has a comfortable and pleasant climate and a first-class ecological environment. It has the honorary titles of charming city in China, happiest city in China and national garden city. But also won the annual China Habitat Environment Award issued by the Ministry of Housing and Urban-Rural Development, which shows that the air quality in Haikou is really meaningless.

There is no cold winter and no hot summer in Haikou. Evergreen, warm and comfortable. The primary industry in Haikou is mainly agriculture, forestry, fishery and animal husbandry, the secondary industry is industry, and the tertiary industry is transportation. Zibo is a city in Shandong Province, located in the east of China and the middle of Shandong Province. Zibo is a resource-based city and an old industrial base in China. As an industrial base, Zibo's air is inevitably polluted.

Zibo is rich in mineral resources, land resources and biological resources. Zibo's leading industries are petrochemical industry, fine chemical industry, electromechanical medicine, etc. It is an important petrochemical drug production base and building materials production area in China. Therefore, compared with Haikou, the air quality in Zibo is much worse.