哈尔滨市空气中PM_(10)的元素组成特征分析

2005年8月、10月、12月和2006年4月,在哈尔滨市7个常规空气质量监测点进行了PM10的采样。样品用ICP-AES进行分析,得到了代表春夏秋冬四季空气中PM10的无机化学元素的浓度含量。研究结果表明,PM10中元素质量主要是由Al、Ca、Fe、K、Mg、S、Si7种元素贡献的;各元素由于气象条件和人为因素的影响而存在不同季节差异,地壳元素Al、Si等在春季含量较高,污染元素S、Ti在冬季含量较高;一些人为低浓度污染元素As、Cr、Ni、Pb、Zn、Cu等随着空气污染的加重明显增加;元素的富集状况分析表明,As、Cu、Ni、Pb、S、Zn富集程度较高,污染较严重,受人为污染源影响较大。

Characteristics Analysis of Elements Contained in Air Suspended Particles in Harbin

Atmospheric particles samples were collected in August,October,December 2005 and April 2006 at 7 environmental air monitoring stations in Harbin.The elemental concentrations of various seasons in PM10 were obtained by ICP-AES method.It shows that element composition in PM10 is composed by Al、Ca、Fe、K、Mg、S、Si.Because of weather conditions and men pollution,elements in PM10 show obvious seasonal variations.In Spring concentrations of earth elements such as Al、Si are higher,in winter pollution elements such as S、Ti are higher.The results also show evident increase of low concentration elements,such as As、Cr、Ni、Pb、Zn、Cu,ect in heavy pollution days.Enrichment factors of atmospheric particles shows that As、Cu、Ni、Pb、S、Zn are enriched heavier and from men pollution.