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四川西部山区土壤和大气有机氯污染物的区域分布

杨文 刘咸德 陈大舟 刘文杰 郑晓燕 李炳伟 李慧颖

杨文, 刘咸德, 陈大舟, 刘文杰, 郑晓燕, 李炳伟, 李慧颖. 四川西部山区土壤和大气有机氯污染物的区域分布[J]. 环境科学研究, 2010, 23(9): 1108-1114.
引用本文: 杨文, 刘咸德, 陈大舟, 刘文杰, 郑晓燕, 李炳伟, 李慧颖. 四川西部山区土壤和大气有机氯污染物的区域分布[J]. 环境科学研究, 2010, 23(9): 1108-1114.
YANG Wen, LIU Xian de, CHEN Da zhou, LIU Wen jie, ZHENG Xiao yan, LI Bing wei, LI Hui ying. Regional Distribution of Organochlorine Pollutants in Mountain Soil and Air in Western Sichuan, China[J]. Research of Environmental Sciences, 2010, 23(9): 1108-1114.
Citation: YANG Wen, LIU Xian de, CHEN Da zhou, LIU Wen jie, ZHENG Xiao yan, LI Bing wei, LI Hui ying. Regional Distribution of Organochlorine Pollutants in Mountain Soil and Air in Western Sichuan, China[J]. Research of Environmental Sciences, 2010, 23(9): 1108-1114.

四川西部山区土壤和大气有机氯污染物的区域分布

基金项目: 国家重点基础研究发展规划(973)项目(2003CB415003);中央级公益性科研院所基本科研业务专项(2009KYYW13)

Regional Distribution of Organochlorine Pollutants in Mountain Soil and Air in Western Sichuan, China

  • 摘要: 为研究持久性有机污染物(POPs)的长距离传输和边远山区POPs的区域分布与来源,于2005年10月—2008年4月在四川西部山区的卧龙自然保护区内沿巴朗山迎风坡1个海拔梯度(1 242~4 475 m)采集表层土壤和大气被动采样样品.对色谱-高分辨质谱(GC-HRMS)的数据分析表明,在卧龙山区2 800 m以上的高海拔地区,土壤和大气中HCB,HCHs和DDTs具有浓度低、分布均匀的特点,这可归因于大气长距离传输的贡献;在有人居住和活动的地区,也观测到HCHs和DDTs的浓度异常和污染情况.通过对有机氯污染物浓度水平、相对化学组成、浓度空间分布特征和季节变化等情况的综合分析,可以区分大气长距离传输和局地污染源排放2种源贡献.大气被动采样技术能够提供边远山区有机氯污染物大气浓度水平和时空分布的信息. 结合大气和土壤的现场数据,可以综合观测和表征山区环境有机氯污染物的浓度异常现象.

     

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出版历程
  • 收稿日期:  2010-02-09
  • 修回日期:  2010-04-26
  • 刊出日期:  2010-09-25

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