?????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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