8月北京PM2.5月均濃度為今年單月最低

array(1) { [441100]=> array(2) { [2]=> array(3) { [0]=> string(6) "北京" [1]=> string(5) "PM2.5" [2]=> string(12) "美麗中國" } [4]=> array(1) { [0]=> string(19) "同花順7x24快訊" } } }