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

2?????????

3?????

4??????????????

5??????????

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