??? ???? ???? ????? ?????? ?????? ???? ???? ???? ?? 15 ????? ?????? ????? ???????? ??????? ??? ????? ?????? PM2.5 ???????. ??? ??? ?? ?????? PM2.5 ???????? ?? ??????? ?????? ???? ????? 28% ?36% ?? ????? ?????? ?? ???? ?????? ?? ??? ???? ???????? ??????? 64% ??? 72% ?? ?????? ??????. ????? ????? ?????? ?????? ??? ?? ???????? ???? 31%? ?????? ??? ????? 22.4%? ???????? ??????? 18.1%? ?????? ???????? ?? 14.4%? ????? ?????????? ??????? ?? ???????? ????? ????????? ????? ???????? ?????? ?????? 14.1%.
??????? ?? ????????? ????????? ????? PM2.5 ???? ???? ???? ???? ????? ?? ?????? ???????? ???????? ?????????? ????? ?????? ??????? ????????? ?????? ??? ???????? ????? 26%? 17%?16%?12% ?11% ?? ????? ??? PM2.5.
????? ??????? ????? ??????? ????? ?? ?? ????? ??????? ??????????? ????? ????? ?????? ?? ????? ??? ?????.