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长江三角洲地区大气二恶英类污染物输送-沉降模拟研究

张 珏 孟 凡 何友江 张艳燕 朱 彬 朱 琦

张 珏, 孟 凡, 何友江, 张艳燕, 朱 彬, 朱 琦. 长江三角洲地区大气二恶英类污染物输送-沉降模拟研究[J]. 环境科学研究, 2011, 24(12): 1393-1402.
引用本文: 张 珏, 孟 凡, 何友江, 张艳燕, 朱 彬, 朱 琦. 长江三角洲地区大气二恶英类污染物输送-沉降模拟研究[J]. 环境科学研究, 2011, 24(12): 1393-1402.
ZHANG Jue, MENG Fan, HE You-jiang, ZHANG Yan-yan, ZHU Bin, ZHU Qi. Simulation of Transport-Deposition of Dibenzo-p-Dioxins and Dibenzo Furans in the Atmosphere in the Yangtze River Delta Region[J]. Research of Environmental Sciences, 2011, 24(12): 1393-1402.
Citation: ZHANG Jue, MENG Fan, HE You-jiang, ZHANG Yan-yan, ZHU Bin, ZHU Qi. Simulation of Transport-Deposition of Dibenzo-p-Dioxins and Dibenzo Furans in the Atmosphere in the Yangtze River Delta Region[J]. Research of Environmental Sciences, 2011, 24(12): 1393-1402.

长江三角洲地区大气二恶英类污染物输送-沉降模拟研究

基金项目: 国家自然科学基金项目(40905063);中央级公益性科研院所基本科研业务专项(2009KYYW11,2010GGQD05)

Simulation of Transport-Deposition of Dibenzo-p-Dioxins and Dibenzo Furans in the Atmosphere in the Yangtze River Delta Region

  • 摘要: 大气中的二恶英类物质(PCDD/Fs)是一类难降解的有毒污染物,可对人类和其他哺乳动物的健康构成危害.二恶英类物质主要是由废物焚烧、金属冶炼和造纸化工等行业所产生. 二恶英类物质为半挥发性物质,可以在气态和气溶胶之间相互转移,从而影响其大气物理和化学过程. 利用耦合有机物吸收和黑碳吸附的二恶英类污染物颗粒态、气态相间分配模块和化学转化的区域大气化学、输送模式(CMAQ)模拟了2006年1月,4月,7月和10月长三角(长江三角洲)地区PCDD/Fs在大气中的输送、转化和沉降等演变过程,探讨了大气中二恶英类污染物的季节变化规律和沉降特征. 模拟结果表明,长三角地区的二恶英类污染物排放存在着明显的长距离输送特征和区域影响;冬季大气二恶英类污染物浓度明显高于夏季,湿沉降是其主要的沉降途径.

     

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出版历程
  • 收稿日期:  2011-04-22
  • 修回日期:  2011-05-17
  • 刊出日期:  2011-12-25

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