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北京市西北城区取暖期环境大气中PM10的物理化学特征
引用本文:时宗波,邵龙义,李红,A.G.Whittaker,T.P.Jones,K.A.BeruBe,R.J.Richards.北京市西北城区取暖期环境大气中PM10的物理化学特征[J].环境科学,2002,23(1).
作者姓名:时宗波  邵龙义  李红  A.G.Whittaker  T.P.Jones  K.A.BeruBe  R.J.Richards
作者单位:1. 中国矿业大学,北京,资源开发工程系,北京,100083
2. School of Biosciences,Cardiff University,PO BOX911,Cardiff,CF10,3US,UK
基金项目:北京市自然科学基金资助项目 (80 0 2 0 14),科技部首批中英科技合作基金资助项目
摘    要:根据监测资料探讨了北京市西北城区取暖期PM10 的逐日变化规律和日变化规律 .分别使用X射线衍射仪(XRD)和扫描电镜 (SEM)研究PM10 中的矿物成分及其微观形貌特征 .结果表明夜间PM10 浓度普遍高于白天 .XRD分析显示颗粒物粒度越细 ,其中所含的矿物种类越少 .SEM研究得出 ,单个PM10 颗粒类型可初步分为有链状集合体、簇状集合体、圆球状、片状和不规则形状等 5类 .从数量上看 ,PM10 主要来自燃煤和汽车尾气

关 键 词:PM10  矿物  形貌  北京市西北城区

Physicochemical Characterization of the PM10 in Ambient Air of Northwestern Beijing Urban Area During Heating-period
A.G.Whittaker,T.P.Jones,K.A.BeruBe,R.J.Richards.Physicochemical Characterization of the PM10 in Ambient Air of Northwestern Beijing Urban Area During Heating-period[J].Chinese Journal of Environmental Science,2002,23(1).
Authors:AGWhittaker  TPJones  KABeruBe  RJRichards
Abstract:Based on monitoring data,the daily and day\|to\|day changes of PM 10 mass concentrations in northwestern Beijing urban area during heating\|period were discussed.XRD and SEM were applied to study the mineral compositions and morphology of the PM 10 ,respectively.It was concluded that concentration of PM 10 at nighttime was higher than that at daytime generally.By XRD analysis,it was found that the finer the particles,the less the minerals in it.Furthermore,from the SEM micrograph,five types of the particles,mostly from coal burning and diesel exhaust in number concentration,were classified as chain\|like aggregate,cluster aggregate,spherical particle,flake\|like particle and non\|regular particle.
Keywords:PM    10  mineral compositions  morphology  northwestern Beijing
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