1?????:???????????

???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????????????????????????????????????????????????????????????????????????????????(??) ???:???????