??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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