| 淮河盱眙段柱状沉积物中PAHs分布及生态风险评价 |
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| 引用本文： | 杨建丽,冯 流,周俊丽,刘征涛.淮河盱眙段柱状沉积物中PAHs分布及生态风险评价[J].环境科学研究,2009,22(4):404-408. |
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| 作者姓名： | 杨建丽 冯 流 周俊丽 刘征涛 |
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| 作者单位： | 1.北京化工大学化学工程学院,北京 100029 |
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| 基金项目： | 国家重点基础研究发展规划(973计划)，中国环境科学研究院中央级公益性科研院所基本科研业务专项资助项目 |
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| 摘 要： | 通过对淮河盱眙段柱状沉积物中16种优先控制的PAHs污染物进行GC-MS定量分析，结合210Pb同位素定年，重现了该区域多环芳烃的污染历史. 研究表明, 在柱状沉积物中整个沉积剖面(0～45 cm)w(PAHs)为102.9～306.9 ng/g(以干质量计). 20世纪30年代以后w(PAHs)总体呈下降趋势，但自进入21世纪以来w(PAHs)呈逐年上升趋势，并在2008年达到最高值. 从柱状沉积物的w(2～3环PAHs)/w(4环PAHs)来看，淮河盱眙段沉积物中PAHs污染的历史来源主要是石油类污染. 对照有关沉积物的生态风险评价标准，表层与底层芴出现了负面生态效应，而其他层面的潜在生态风险很小.
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| 关 键 词： | 多环芳烃 淮河盱眙 柱状沉积物 生态风险评价 |
| 收稿时间： | 2008/7/29 0:00:00 |
| 修稿时间： | 2008/9/10 0:00:00 |
Distribution and Ecological Risk Assessment of PAHs in Sediment Core from Xuyi Section of Huaihe River |
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| YANG Jian-li,FENG Liu,ZHOU Jun-li and LIU Zheng-tao.Distribution and Ecological Risk Assessment of PAHs in Sediment Core from Xuyi Section of Huaihe River[J].Research of Environmental Sciences,2009,22(4):404-408. |
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| Authors: | YANG Jian-li FENG Liu ZHOU Jun-li and LIU Zheng-tao |
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| Institution: | 1.College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China2.Key Laboratory of Ecological Effect and Risk Assessment of Chemicals, Chinese Research Academy of Environmental Sciences, Beijing 100012, China |
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| Abstract: | The 16 priority controlled polycyclic aromatic hydrocarbons(PAHs) in a sediment core from the Xuyi section of the Huaihe River were analyzed by GC-MS.The PAHs pollution history in this area was reconstructed by analysis of the concentrations of PAHs connected with the deposition time using the 210Pb isotope dating method.The results showed that the PAHs in the core sediment ranged from 102.9 to 306.9 ng/g(dry weight).The concentrations of PAHs decreased during the 20th century,while the PAHs concentration l... |
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| Keywords: | PAHs Xuyi section of Huaihe sediment core ecological risk assessment |
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