??
???????????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???????????????????????????????????????????????????????????????????????????????????????????????????????????(??) ???????:???
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?????1?????:????????????????????????