??
???2??21?? (?????????????? ???)?????1??,??????168??,?????????????????????????????????????????????????????????????????????????????;???????????????????????????????
??21???1??,?????339??(PM2.5)??53.1??/???,??4.7%;??(PM10)?80?????????/??,??8.1%?????339??78.0%,??0.5??
1????,??“2+36”??PM2.5????61.0????/??,??18.3%;??????68.5%,????????7.4????;??????2.9%,??6.8???1?????,??PM2.5??????28.3??/?,??23.5%?
1????,168??:PM2.5???20????????????????????????????????????????????????????????????????????????;PM2.5???????????????20?????????????????????????????????????????????????????????????????????????????????????????????????(??) ???:?????
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?????1?????:????????????????????????