2021  1  8                 85.9%     2.7                   

55.6%     29.8               29.6%     4.1     12                 99.2%      96.7%       95.0%    

93.0%      88.5%      85.2%     82.7%    

 79.8%     79.0%      78.6%      78.2%    

 74.5%   
        PM2.5   23  /       20.7%   12   PM2.5            10  /         17  /        20  /        22  /        22  /      

 24  /        24  /        25  /        25  /       27  /        29  /        29  /     
                 12                                                  