| 基于梯度扩散薄膜技术的太湖金属和营养盐区域污染特征分析 |
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| 引用本文： | 周春羊,管冬兴,韩永和,潘岳,房煦,王兴雨,郑建伦,李亚青,魏天娇,邹宜涛,崔昕毅,罗军.基于梯度扩散薄膜技术的太湖金属和营养盐区域污染特征分析[J].农业环境科学学报,2016,35(6):1144-1152. |
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| 作者姓名： | 周春羊 管冬兴 韩永和 潘岳 房煦 王兴雨 郑建伦 李亚青 魏天娇 邹宜涛 崔昕毅 罗军 |
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| 作者单位： | 1. 南京大学环境学院,污染控制与资源化国家重点实验室,南京210023;2. 南京大学环境学院,污染控制与资源化国家重点实验室,南京210023;南京农业大学资源与环境科学学院,南京210095 |
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| 基金项目： | 国家自然科学基金项目(21477053) |
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| 摘 要： | 本研究利用梯度扩散薄膜技术(Diffusive gradients in thin-films,DGT)对太湖7个湖区的水体和沉积物中金属与营养盐有效态含量进行原位监测,并分析污染物的区域特征。结果表明,DGT所测有效态浓度低于传统化学方法所提取浓度,且能实现低浓度、多元素同时监测。具体来看,太湖水体中金属的DGT有效态含量较低,区域差别较小。沉积物中9种典型金属的DGT有效态含量排序为FeMnZnNiAsWCoMoCu,其中,Fe、As、Zn、Ni和W在竺山湾、梅梁湾和贡湖污染相对较重,在湖心区、胥湖和东太湖污染相对较轻,其余金属分布较平均且含量较低。与金属不同的是,太湖水体中DGT所测的有效磷(P)含量整体较高,最高值出现在贡湖,达83.2μg·L~(-1)。沉积物中DGT有效态P的区域分布更明显,以竺山湾、梅梁湾和沿岸区污染相对较重,最高值出现在竺山湾,达500μg·L~(-1)。对比沉积物和水体中DGT有效态P含量发现,竺山湾、梅梁湾和沿岸区沉积物可能是P的主要储存场所,具有潜在释放风险。
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| 关 键 词： | 太湖 梯度扩散薄膜技术(DGT) 沉淀状氧化锆吸附膜 磷 有效态含量 区域污染 |
| 收稿时间： | 3/2/2016 12:00:00 AM |
Pollution characteristics of metals and nutrients in different regions of Lake Taihu based on diffusive gradients in thin-films technique |
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| ZHOU Chun-yang,GUAN Dong-xing,HAN Yong-he,PAN Yue,FANG Xu,WANG Xing-yu,ZHENG Jian-lun,LI Ya-qing,WEI Tian-jiao,ZOU Yi-tao,CUI Xin-yi and LUO Jun.Pollution characteristics of metals and nutrients in different regions of Lake Taihu based on diffusive gradients in thin-films technique[J].Journal of Agro-Environment Science( J. Agro-Environ. Sci.),2016,35(6):1144-1152. |
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| Authors: | ZHOU Chun-yang GUAN Dong-xing HAN Yong-he PAN Yue FANG Xu WANG Xing-yu ZHENG Jian-lun LI Ya-qing WEI Tian-jiao ZOU Yi-tao CUI Xin-yi and LUO Jun |
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| Institution: | State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China,State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China,State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China,State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China,State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China,State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China,State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China,State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China;College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China,State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China,State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China,State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China and State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China |
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| Abstract: | |
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| Keywords: | Lake Taihu DGT precipitated zirconia gel P speciation regional pollution |
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