??
??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?????:????????????????????????