中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
莱州湾河流表层沉积物中六溴环十二烷的含量水平、分布及组成特征

文献类型:期刊论文

作者刘艺凯 ; 王景芝 ; 唐建辉 ; 于志强 ; 张干
刊名地球化学
出版日期2014
卷号43期号:1页码:55-63
关键词六溴环十二烷 表层沉积物 含量 分布 组成 莱州湾河流
ISSN号0379-1726
其他题名Levels, distributions and isomer profiles of hexabromocyclododecanes in the riverine sediments of the Laizhou Bay area, North China
产权排序中国科学院烟台海岸带研究所; 中国科学院广州地球化学研究所
通讯作者TANG Jian-hui, E-mail: jhtang@yic.ac.cn
中文摘要从莱州湾附近河流采集了36个表层沉积物样品,采用高效液相色谱耦合三重四极杆串联质谱的分析方法对沉积物中的六溴环十二烷(HBCDs)3种异构体进行了测定,目的是表征研究区域内HBCDs的污染水平和组成特征,并探讨其分布、来源及影响因素。结果表明,莱州湾河流沉积物中∑HBCDs的含量范围为0.03~20.17 ng/g dw (均值是2.14 ng/g dw);较国内外其他河流,该研究区域HBCDs含量水平较低。HBCDs异构体组成各不相同,除1个站位外,其他站位样品中γ-HBCD占主导地位(52.3%~97.3%,均值72.4%),但是在农业区α-HBCD相对丰度较高。对HBCDs的分布特征及来源分析得出,含量较高的站点多集中在工业区,呈现出明显的点源特征;而远离工业区的采样点, HBCDs 可能主要来自大气的传输和沉降,且 HBCDs的含量与TOC含量呈现出较好的相关性,表明TOC是非工业区分布的一个控制因素。
英文摘要Thirty-six surface sediment samples were collected from nearly ten rivers or distributaries in the Laizhou Bay area. Three diastereoisomers of hexabromocyclododecanes (HBCDs) were analyzed by high performance liquid chromatograph, coupled to a triple quadrupole mass spectrometer (HPLC-MS/MS). The concentrations of HBCDs ranged from 0.03 to 20.17 ng/g dw, with a mean vale of 2.14 ng/g dw. The study area is less contaminated by HBCDs in comparison with other riverine regions around the world. HBCD diastereoisomer profiles differed among the sediment samples, and gamma-HBCD (52.3%-97.3%, mean 72.4%) was the dominant isomer (except one sample), whereasalpha-HBCD contributions were relatively high in sediments from the rural areas. Higher concentrations occurred mostly at industry areas, indicating the sources of HBCD was direct discharge from local factories;however, in the less industrial areas, including urban areas and rural areas, sources of HBCDs were from atmospheric transport and deposition. Moreover, relatively strong correlation between TOC and HBCD concentrations suggested that TOC is the control factor for HBCD distribution in the less industrial areas.
学科主题地球化学
收录类别CSCD
资助信息中国科学院知识创新工程项目(KZCX2-YW-Q07-04,KZCX2-EW-QN210)
语种中文
CSCD记录号CSCD:5046451
公开日期2014-07-06
源URL[http://ir.yic.ac.cn/handle/133337/6822]  
专题烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
推荐引用方式
GB/T 7714
刘艺凯,王景芝,唐建辉,等. 莱州湾河流表层沉积物中六溴环十二烷的含量水平、分布及组成特征[J]. 地球化学,2014,43(1):55-63.
APA 刘艺凯,王景芝,唐建辉,于志强,&张干.(2014).莱州湾河流表层沉积物中六溴环十二烷的含量水平、分布及组成特征.地球化学,43(1),55-63.
MLA 刘艺凯,et al."莱州湾河流表层沉积物中六溴环十二烷的含量水平、分布及组成特征".地球化学 43.1(2014):55-63.

入库方式: OAI收割

来源:烟台海岸带研究所

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