??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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