             
  
2020/12/7
    11  30    2018—2019                                                                                                                                                                   7116                                              100%            100%                                    628.2     438        654         2000     268            7% 23.9 %    4                                                             2017                                                                                                                                                                                                                   93%     PM2.5   22ug/m3                                                                                                                                                                            
             