???????????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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