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

2???????????

3???????????

4?????

5?400??????4???

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