From electrostatic precipitator (ESP) inlet to ESP, the main element contents of PM_(10) have little variety, however, the contents of Fe, Ca, Mg and Al decrease significantly and the content of Na increases markedly on ESP outlet.

• 从不同采样点PM_(10)元素组成看,从静电除尘器(ESP)前到ESP,PM_(10)化学成分变化不大,到ESP后,元素Fe、Ca、Mg和Al的含量急剧减少,而Na的含量则迅速增高。