In May, China's key cities air quality ranking announced the worst in Taiyuan, Shanxi

　　China News Agency, Beijing, June 21 (Reporter Ruan Yulin) The Ministry of Ecology and Environment of China announced on the 21st that the air quality rankings of China's key cities showed that Taiyuan, Linfen, and Xianyang of Shaanxi were among the top 3 cities in the country with the worst air quality. Bit.

　　The Ministry of Ecology and Environment notified the media of the national environmental air quality status. In May, among the 168 key cities, Taiyuan, Linfen, Xianyang, Shijiazhuang, Xi'an, Xinxiang, Weinan, Jiaozuo, Yangquan, Zibo and other cities had relatively poor air quality; Haikou , Zhuhai, Zhongshan, Lhasa, Shenzhen, Jiangmen, Huangshan, Zhaoqing, Foshan, Huizhou and other cities have relatively good air quality.

　　In May, the proportion of days with good air quality in 339 cities at prefecture-level and above was 87.8%, an increase of 2.2% year-on-year; the average concentration of fine particulate matter (PM2.5) was 22 micrograms per cubic meter, a year-on-year decrease of 8.3%.

From January to May, the average number of good days in 339 prefecture-level and above cities across the country was 84.6%, a decrease of 0.3% year-on-year; the average concentration of PM2.5 was 37 micrograms per cubic meter, a year-on-year decrease of 5.1%; inhalable particulate matter (PM10 ) The average concentration is 65 micrograms per cubic meter, a year-on-year increase of 4.8%

　　In May, the average number of good days in “2+26” cities in Beijing-Tianjin-Hebei and surrounding areas was 63.7%, an increase of 2.1 percentage points year-on-year; PM2.5 concentration was 33 micrograms per cubic meter.

From January to May this year, the average number of good days was 63.3%, and the PM2.5 concentration was 53 micrograms per cubic meter, a year-on-year decrease of 13.1%.

　　In order to vigorously promote the continuous improvement of environmental air quality in key areas, the Ministry of Ecology and Environment has recently launched comprehensive atmospheric supervision and assistance work in key areas.

According to the unified deployment, the Ministry of Ecology and Environment has sent 11 professional teams to focus on key industries such as steel, coking, petrochemical, chemical, glass and other key industries to carry out special supervision. The crackdown on environmental violations.

(Finish)