Days of Excellent Air Quality in Ji’nan Last Year Increased by 100% .

http://english.e23.cn 2022-01-06 18:02:14

Days of Excellent Air Quality in Ji’nan Last Year Increased by 100% .

  Six major pollutants of ambient air quality of Ji’nan last year has improved a lot . Days of excellent air quality has increased by 100%, achieving a historic breakthrough.