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青岛环境空气PM10和PM2.5污染特征与来源比较

吴 虹 张彩艳 王 静 宣肇菲 楚翠娟 冯银厂 徐 虹

吴 虹, 张彩艳, 王 静, 宣肇菲, 楚翠娟, 冯银厂, 徐 虹. 青岛环境空气PM10和PM2.5污染特征与来源比较[J]. 环境科学研究, 2013, 26(6): 583-589.
引用本文: 吴 虹, 张彩艳, 王 静, 宣肇菲, 楚翠娟, 冯银厂, 徐 虹. 青岛环境空气PM10和PM2.5污染特征与来源比较[J]. 环境科学研究, 2013, 26(6): 583-589.
WU Hong, ZHANG Cai-yan, WANG Jing, XUAN Zhao-fei, CHU Cui-juan, FENG Yin-chang, XU Hong. Comparative Study on Pollution Characteristics and Source Apportionment of PM10 and PM2.5 in Qingdao[J]. Research of Environmental Sciences, 2013, 26(6): 583-589.
Citation: WU Hong, ZHANG Cai-yan, WANG Jing, XUAN Zhao-fei, CHU Cui-juan, FENG Yin-chang, XU Hong. Comparative Study on Pollution Characteristics and Source Apportionment of PM10 and PM2.5 in Qingdao[J]. Research of Environmental Sciences, 2013, 26(6): 583-589.

青岛环境空气PM10和PM2.5污染特征与来源比较

基金项目: 国家自然科学基金项目(1207070,21207069)

Comparative Study on Pollution Characteristics and Source Apportionment of PM10 and PM2.5 in Qingdao

  • 摘要: 年分别在青岛设6个和2个采样点采集PM10和PM2.5样品,分析二者质量浓度及颗粒物中多种无机元素、水溶性离子和碳等组分的质量浓度,以研究PM10及PM2.5的污染特征. 采用CMB-iteration模型估算法,确定一次源类及二次源类对PM10和PM2.5的贡献,利用统计学方法比较PM10和PM2.5的污染源. 结果表明:青岛大气颗粒物质量浓度季节变化显著,表现为春、冬季高,夏、秋季低;Na、Mg、Al、Si、Ca和Fe元素主要富集在PM10中,SO42-、NO3-、EC和OC主要富集在PM2.5中;城市扬尘、煤烟尘、建筑水泥尘及海盐粒子等粗粒子在PM10中的分担率较PM2.5中的高,分担率分别为28.7%、17.2%、7.16%及4.47%;二次硫酸盐、二次硝酸盐、机动车尾气尘及SOC(二次有机碳)等在PM2.5中的分担率较PM10中的高,分担率分别为19.3%、8.97%、13.7%及6.07%;由PM10与PM2.5化学组分的分歧系数可见,春、秋季PM10和PM2.5化学构成存在一定差异,而冬、夏季二者的化学构成相似.

     

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出版历程
  • 收稿日期:  2013-01-17
  • 修回日期:  2013-04-23
  • 刊出日期:  2013-06-25

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