Top ten cities with the best air quality

Top ten cities with the best air quality:

I. Sanya

Sanya is an international tourist city with tropical coastal scenery, also known as "Oriental Hawaii". On June 4th, 20 16, China Academy of Sciences released the Research Report on Livable Cities in China, and Sanya's livability index ranked third among 40 cities in China. From 2065438 to February 2007, Sanya was selected as the third batch of national low-carbon cities.

Second, Haikou

In 2020, Haikou's annual air quality is basically at an excellent level, ranking first among the national 168 key cities announced by the Ministry of Ecology and Environment. The number of first-class excellent days was 278, accounting for 76.0% of the annual percentage, the number of second-class excellent days was 83, accounting for 22.6% of the annual percentage, and the number of days with excellent air quality was 98.6%. The number of days of light pollution in Grade III is 5 days, accounting for 1.4% of the annual percentage.

Three. Lhasa

According to the data of the Department of Ecology and Environment of Xizang Autonomous Region, the water quality compliance rate of the main rivers and lakes, seven state-controlled sections and urban centralized drinking water sources in the city is 100%, and the water quality of urban water systems continues to be good. There is no inferior surface water in the city, and there is no black and odorous water body in the urban built-up area. The acoustic environment function area is kept good; The overall quality of soil environment remained stable; The quality of radiation environment remained good.

Fourth, Fuzhou.

Fuzhou is the capital of Fujian and the hottest city in Fujian. It has become a famous "stove" city in China, but its air quality is excellent. In 20021year, the excellent rate of air quality in the whole city reached 100%, an increase of 0.5 percentage points year-on-year. The average concentration of fine particulate matter PM2.5 is 2 1 μ g/m3, and the air quality is 65438+.

Verb (abbreviation of verb) Xiamen

The Bulletin of Xiamen Ecological Environment Quality shows that the water quality of drinking water sources in the city is excellent, and the water quality of major lakes and reservoirs is good; The water quality in coastal waters has improved, especially the beach garbage. The aerial photography density of drones is the lowest in seven coastal cities in Fujian Province. Continue to promote the prevention and control of soil pollution, and the quality of soil environment remains stable; The quality of radiation environment is stable, the ionizing radiation and electromagnetic radiation environment are at normal levels, and there is no incident of radioactive source out of control.

6. Lishui

The average annual concentration of PM2.5 in 9 counties (cities, districts) of Lishui City reached 20 μ g/m3, and the average proportion of excellent days of AQI was 99.8%. All air quality indicators have been significantly improved. The blue sky and white clouds in Lishui are inseparable from the local government's continuous management and protection of the ecology, and also from the firm implementation of the three-year action plan to defend the blue sky.

Seven, Shenzhen

As the core city of Guangdong-Hong Kong-Macao Greater Bay Area, Shenzhen is not only economically developed, but also has an excellent ecological environment, and its air quality ranks among the top in China all the year round. Last year, the number of days with excellent air quality reached 35 1, accounting for 96.2% of the total, and the average annual concentration of PM2.5 dropped to 18 μ g/m3.

Eight. Huizhou

According to Huizhou Ecological Environment Bulletin, the annual assessment concentrations of six pollutants in Huizhou City have reached the national secondary standards, among which sulfur dioxide (SO2), nitrogen dioxide (NO2) and carbon monoxide (CO) have reached the national primary standards, and respirable particulate matter (PM 10), fine particulate matter (PM2.5) and ozone (O3) have reached the national secondary standards.

Nine, Zhuhai

As an ancient livable city in China, Zhuhai is famous for its air permeability. It used to be said that the air here can be filled and exported. Last year, the compliance rate was 95. 1%, the number of excellent days was 347, the number of light pollution days was only 18, and the concentration of PM2.5 was 20 μ g/m3, ranking 10 among 65,438 key cities in China.

X. Guiyang

According to Guiyang Eco-environmental Bulletin, the days when the ambient air quality reached the standard were 362 days, including 240 days of Grade I (excellent), 22 days of Grade II (good)/KLOC-0, and 4 days of Grade III (light pollution). There was no polluted weather above level 4 (moderate pollution), and the excellent rate of ambient air quality reached a record high, reaching 98.9%, up 0.8 percentage points year-on-year.