????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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