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