??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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