??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????????????????????????????????????????????????????????????????????????????????(????) ?????:???????

??

??:???????????,??????????,??????????????