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

2???????

3???????

4??????100???

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