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