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