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乌鲁木齐市重污染期间PM2.5污染特征与来源解析

王 敬 毕晓辉 冯银厂 张裕芬 吴建会 吕爱华

王 敬, 毕晓辉, 冯银厂, 张裕芬, 吴建会, 吕爱华. 乌鲁木齐市重污染期间PM2.5污染特征与来源解析[J]. 环境科学研究, 2014, 27(2): 113-119.
引用本文: 王 敬, 毕晓辉, 冯银厂, 张裕芬, 吴建会, 吕爱华. 乌鲁木齐市重污染期间PM2.5污染特征与来源解析[J]. 环境科学研究, 2014, 27(2): 113-119.
WANG Jing, BI Xiao-hui, FENG Yin-chang, ZHANG Yu-fen, WU Jian-hui, LV Ai-hua. Pollution Characteristics and Source Apportionment of PM2.5 during Heavy Pollution Process in Urumchi City[J]. Research of Environmental Sciences, 2014, 27(2): 113-119.
Citation: WANG Jing, BI Xiao-hui, FENG Yin-chang, ZHANG Yu-fen, WU Jian-hui, LV Ai-hua. Pollution Characteristics and Source Apportionment of PM2.5 during Heavy Pollution Process in Urumchi City[J]. Research of Environmental Sciences, 2014, 27(2): 113-119.

乌鲁木齐市重污染期间PM2.5污染特征与来源解析

基金项目: 国家自然科学基金项目(21207070,41205089,21207069)

Pollution Characteristics and Source Apportionment of PM2.5 during Heavy Pollution Process in Urumchi City

  • 摘要: 目前有关我国城市大气重污染期间PM2.5污染特征及其来源的研究较少,为深入了解典型城市大气重污染期间PM2.5的污染特征与来源构成,于2013年1月19—30日在乌鲁木齐市采集PM2.5样品,并依据相关划分标准,确定1月19—28日为重污染天气. 分析了重污染天气下ρ(PM2.5)及主要化学组成(包括水溶性离子、无机元素和碳组分),运用统计学方法研究了重污染期间PM2.5的污染特征,并且采用富集因子法和CMB受体模型解析了PM2.5的来源构成.结果表明:大气重污染期间ρ(PM2.5)严重超标,其中米东区环境保护局采样点的ρ(PM2.5)最高,其次是铁路局、市监测站;PM2.5化学组分以SO42-、TC、Si和NO3-为主,其中二次离子占ρ(PM2.5)的43.1%;城市扬尘、煤烟尘和二次粒子是环境空气中PM2.5的主要污染源类,三者在乌鲁木齐市以及米东区的分担率分别为24.7%、15.6%、38.0%和20.8%、28.0%、36.2%,其中二次硫酸盐的分担率在两地更分别达到28.6%和27.0%.

     

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出版历程
  • 收稿日期:  2013-07-01
  • 修回日期:  2013-10-17
  • 刊出日期:  2014-02-25

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