Top 10 cities in China with negative oxygen ion content

The top 10 cities in China with negative oxygen ion content are as follows:

Huangshan in Anhui, Sanya in Hainan, Xinyu in Jiangxi, Xiamen in Fujian, Weihai in Shandong, Nanping in Fujian, Sanming in Fujian, Yichun in Jiangxi, Meizhou, Guangdong, and Lijiang, Yunnan.

According to the provisions of the World Health Organization, the concentration of negative oxygen ions can be used as a standard to measure whether the air is clean. When the negative oxygen ion content per cubic centimeter is 1000-1500, it can be called clean air. Domestic academic circles divide the air into six levels according to the concentration of negative oxygen ions in the air. When there are more than 2,000 negative oxygen ions per cubic centimeter, it is the highest level - very fresh.

The creation of "China Natural Oxygen Bar" is one of the first batch of national climate label brand creation activities of the China Meteorological Administration. Nan'an District is located in the core area of ??Chongqing's main city, sitting on the Yangtze River and backed by Nanshan. It is uniquely endowed with ecological endowments and has a natural "half city landscape and half city green" spatial layout. It is the "lungs" and "window" of Chongqing's main city, and also It is a green barrier for the main city of Chongqing, and this ecological advantage will continue to be strengthened.

In June 2020, Nan'an District issued the "Implementation Plan for the Protection and Improvement of Nanshan and Mingyue Mountains in Nan'an District, Chongqing", which mentioned that "strive to fully protect the ecological "green core" of Nanshan by 2022, and the ecological The barrier function has been significantly enhanced, the forest coverage rate has stabilized at more than 80%, and the green coverage rate has reached more than 90%."

Clear waters and lush mountains are mountains of gold and silver. Nan'an District and Chongqing Economic Development Zone will install 3 sets of negative oxygen ion monitoring facilities and 2 sets of weather mesh monitoring facilities in 2021. At the same time, they will carry out data monitoring of ambient air quality, outbound water quality, negative oxygen ion concentration and other index data, and fully promote " China Natural Oxygen Bar" was created.