%0 Journal Article
%T Characterization of gases and water soluble ion of PM2.5 during spring and summer of 2006 in Xi''''an<br>西安市春夏季气体及PM2.5中水溶性组分的污染特征
%A ZHANG Ting
%A CAO Jun-Ji
%A WU Feng
%A LIU Sui-Xin
%A ZHU Chong-Shu
%A DU Na
%A <br>张婷
%A 曹军骥
%A 吴枫
%A 刘随心
%A 朱崇抒
%A 杜娜
%J 中国科学院研究生院学报
%D 2007
%I 
%X The investigation of PM_(2.5) aerosols using a portable mini-volume sampler was conducted between May 22 and September 22,2006,in high-tech zone,Xi'an.Meantime NH_3 gases were also sampled using passive Ogawa sampler.Water soluble ions(WSI) and NH_3 concentrations were analyzed using an ion chromatogram(IC) analyzer.Integrating these data with SO_2 and NO_2 mass concentrations,the characteristics and sources of WSI of PM_(2.5) in spring and summer in Xi'an were studied.The results indicated that WSI in spring and summer was mainly composed of SO~(2-)_4,NO~-_3 and NH~ _4,accounting for 21.68%,7.52% and 5.62% in mass,respectively,and the PM_(2.5) in spring and summer in Xi'an were generally acidic.SO_2 mass concentrations were poorly correlated with SO~(2-)_4,NO~-_3 and NO_2,indicating that sulfate,nitrite,and ammonium in Xi'an are of different origins.
%K Xi'an
%K water soluble ion
%K gases<br>西安
%K 水溶性离子
%K 气体
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=B5EDD921F3D863E289B22F36E70174A7007B5F5E43D63598017D41BB67247657&cid=B47B31F6349F979B&jid=67CDFDECD959936E166E0F72DE972847&aid=84B9B532FF5B9000&yid=A732AF04DDA03BB3&vid=B91E8C6D6FE990DB&iid=94C357A881DFC066&sid=9A596D09E9486F3E&eid=AEE2F90BC0DB5F35&journal_id=1002-1175&journal_name=中国科学院研究生院学报&referenced_num=0&reference_num=16