?? 74? ?? 2?? ? ??? ??? ??
2013? 03? 15? 09:34【?? ??
?? ??】【??】【???】【???】
????????? ??? ?? 74? ??? 2? ???????? ????. ??? ??? 2?, 74? ?? ??? ?????????(天數(shù)) ??? 54.3%?? ?????? ??? 45.7%?? ??(輕度)??? 22.5%? ???? ????(中度) ??? 8.7%? ???? ??(重度)??? 10.3%? ???? ??(嚴(yán)重)??? 4.2%? ????.
1?? ????? ???????? ??? ??????? ?? ????? ????? 74? ?? ??? ????????? ??? 22.7%??? ?? ?? ????? ???? ??? 15.7%??? ????. PM2.5 ?? ?????? 27.7%???, ? ?? ??? 34.6% ????? PM10 ?? ?????? 23.6%???, ? ?? ??? 33.7% ????.
???????, ??? ??? ??? ?? 74? ?? ??? ?? ?????? ??? 54.7%?? PM2.5? ??? ???? ? ???? 84.4%? ????.
????? ????? ?? ????? ???, ??(邢臺(tái)), ??, ??, ??(邯鄲), ???, ??, ??(衡水), ??? ??? ????? ??? ???? ?? ??, ??, ??, ??, ??, ??, ??, ??, ??? ??? ???? ??? ???.