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密云水库沉积物中多环芳烃的垂直分布、来源及生态风险评估
Temporal Distribution, Sources, and Risk Assessment of Polycyclic Aromatic Hydrocarbons in Sediment Core from Miyun Reservoir

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郭建阳 1   廖海清 2   韩梅 2   黎文 1   张润宇 1   王静 1   吴丰昌 3  
文摘 分析了密云水库沉积柱中16种美国EPA优先控制的多环芳烃(∑PAH_(16))的垂直分布状况,并对其来源和生态风险进行了分析和评估,目的是了解密云水库近年来PAHs污染的变化趋势.从底层16 cm至表层,沉积物中∑PAH_(16)的含量在 618.5 ~ 1 087.9 ng/g之间,且基本上一直呈上升的趋势.沉积物中多环芳烃的组成以3环的菲和芴为主,它们的含量分别为 236.1~417.9 ng/g和91~130.8 ng/g,二者共占沉积物中多环芳烃总量(∑PAH_(16))的47.2% ~58.1%.然而,高环数(5~6环)多环芳烃的比例近年来有逐渐增加的趋势.多环芳烃的组成特征显示密云水库的沉积物中多环芳烃主要来源于煤和木材的低温燃烧.然而,Flu/Flu+Pyr和INP/INP+Bghi P比值的垂直变化说明,近年来机动车辆尾气排放的多环芳烃有增加的迹象.风险评价的结果显示:除了芴和菲之外,密云水库沉积物中的多环芳烃对生态环境的影响目前还处于较低风险水平
其他语种文摘 The temporal distribution of polycyclic aromatic hydrocarbons (PAHs) was measured in sediment core from Miyun reservoir, and the possible sources and the potential risk assessment also have been identified. The aim of the present work is to understand the temporal trend of PAHs in Miyun reservoir recently. The concentrations of ∑PAH_(16) in sediment ranged from 618. 5 ng/g to 1 087. 9 ng/g, and roughly, increased continuously from the bottom (16cm under the surface) to the surface sediment. The PAHs in sediment core were mainly composed of phenanthrene and fluorene. The concentrations of phenanthrene and fluorene in sediment core were 236. 1-417.9 ng/g and 91-130. 8 ng/g, respectively. Both of them accounted for 47. 2% -58. 1% of the ∑PAH_(16) in sediments. Nevertheless, high-rings aromatic hydrocarbons (5-6 rings) were increased steadily in recent years. PAHs compositional profile indicated that the main source of PAHs was originated from the combustion of coal and biomass. However, the vertical profiles of Flu/Flu + Pyr and INP/INP + Bghi P ratios suggested that the vehicles emission was increased very recently. Risk assessment suggested that PAHs in sediment from Miyun reservoir was no significant biological impairment, and low toxicological risk of PAHs was found up to now
来源 环境科学 ,2010,31(3):626-631 【核心库】
关键词 密云水库 ; 多环芳烃 ; 沉积柱 ; 来源 ; 风险评价
地址

1. 中国科学院地球化学研究所, 环境地球化学国家重点实验室, 贵阳, 550002  

2. 中国环境科学研究院湖泊生态环境创新基地, 国家环境保护湖泊污染控制重点实验室, 北京, 100012  

3. 中国科学院地球化学研究所, 环境地球化学国家重点实验室;;国家环境保护湖泊污染控制重点实验室, 贵阳, 550002

语种 中文
ISSN 0250-3301
学科 环境科学基础理论
基金 国家973计划
文献收藏号 CSCD:3939358

参考文献 共 21 共2页

1.  杜桂森. 密云水库水体营养状态分析. 水生生物学报,2004,28(2):192-196 被引 4 次    
2.  刘晓端. 密云水库内湖富营养化现状分析. 湖泊科学,2002,14(4):331-335 被引 17 次    
3.  Xu S. Emission of polycyclic aromatic hydrocarbons in China. Environ Sci Technol,2006,40(3):702-708 被引 35 次    
4.  Simcik M F. Atmospheric loading of polycyclic aromatic hydrocarbons to Lake Michigan as recorded in the sediments. Environ Sci Technol,1996,30(10):3039-3046 被引 7 次    
5.  Lima A L C. High-resolution record of pyrogenic polycyclic aromatic hydrocarbon deposition during the 20th century. Environ Sci Technol,2003,37(1):53-61 被引 16 次    
6.  Ishitake M. Vertical profile of polycyclic aromatic hydrocarbons in a sediment core from a reservoir in Osaka city. Environ Geol,2007,52(1):123-129 被引 9 次    
7.  Yim U H. Spatio-temporal distribution and characteristics of PAHs in sediments from Masan Bay,Korea. Mari Pollut Bull,2005,50(3):319-326 被引 23 次    
8.  Fernandez P. The historical record of atmospheric pyrolytic pollution over Europe registered in the sedimentary PAH from remote mountain lakes. Environ Sci Technol,2000,34(10):1906-1913 被引 17 次    
9.  刘国卿. 多环芳烃在珠江口的百年沉积记录. 环境科学,2005,26(3):141-145 被引 20 次    
10.  Peng X. Temporal trends of hydrocarbons in sediment cores from the Pearl River Estuary and the northern South China Sea. Environ Pollut,2008,156(2):442-448 被引 6 次    
11.  康跃惠. 珠江口现代沉积物柱芯样多环芳烃高分辨沉积记录研究. 环境科学学报,2005,25(1):45-51 被引 14 次    
12.  Guo Z. The sedimentary fluxes of polycyclic aromatic hydrocarbons in the Yangtze River Estuary coastal sea for the past century. Sci Total Environ,2007,386(1/3):33-41 被引 8 次    
13.  吴莹. 多环芳烃在渤海海峡柱状沉积物中的分布. 环境科学,2001,22(3):74-77 被引 25 次    
14.  池继松. 大亚湾海域多环芳烃和有机氯农药的高分辨率沉积记录. 热带海洋学报,2005,24(6):44-52 被引 7 次    
15.  Kannan K. Spatial and temporal distribution of polycyclic aromatic hydrocarbons in sediments from Michigan inland lakes. Environ Sci Technol,2005,39(13):4700-4706 被引 30 次    
16.  Guo Z. High-resolution depositional records of polycyclic aromatic hydrocarbons in the central continental shelf mud of the East China Sea. Environ Sci Technol,2006,40(17):5304-5311 被引 14 次    
17.  Christensen E R. Source apportionment of PAHs in sediments using factor analysis by time records: Application to Lake Michigan,USA. Water Res,2007,41(1):168-176 被引 19 次    
18.  Gu S H. Source apportionment of PAHs in dated sediments from the Black River,Ohio. Water Res,2003,37(9):2149-2161 被引 12 次    
19.  Katsoyiannis A. On the use of PAH molecular diagnostic ratios in sewage sludge for the understanding of the PAH sources. Is this use appropriate?. Chemosphere,2007,69(8):1337-1339 被引 22 次    
20.  Witt G. Polycyclic aromatic hydrocarbons in water and sediments of the Baltic Sea. Mar Pollut Bull,1995,31(4/12):237-248 被引 49 次    
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