台湾海峡沿海沉积物中合成麝香分布及其环境指示意义  

Occurrence and distribution of synthetic musks in coastal sediments from the Taiwan Strait and the potential environmental significance

作　　者：刘艺 徐亮 胡琼璞 曾祥英[1] 胡建芳[1] 于志强[1] LIU Yi;XU Liang;HU Qiongpu;ZENG Xiangying;HU Jianfang;YU Zhiqiang(State Key Laboratory of Organic Geochemistry/Guangdong Key Laboratory of Environment and Resources,Guangzhou Institute of Geochemistry,Chinese Academy of Sciences,Guangzhou 510640,Guangdong,China;University of Chinese Academy of Sciences,Beijing 100049,China;Jiangxi Academy of Environmental Science,Nanchang 330029,Jiangxi,China;Hangzhou PuYu Technology Development Co.,Ltd,Hangzhou 311305,Zhejiang,China)

机构地区：[1]中国科学院广州地球化学研究所,有机地球化学国家重点实验室/广东省环境资源利用与保护重点实验室,广东广州510640 [2]中国科学院大学,北京100049 [3]江西省环境保护科学研究院,江西南昌330029 [4]杭州谱育科技发展有限公司,浙江杭州311305

出　　处：《地球化学》2022年第4期417-423,共7页Geochimica

基　　金：中国科学院前沿科学重点研究项目(QYZDJ-SSW-DQC018-02);NSFC-广东省联合基金重点项目(U1701244)联合资助。

摘　　要：台湾海峡位于福建省和台湾岛之间,是连接南海和东海的通道。本研究在台湾海峡采集了32个表层沉积物,研究了沉积物中合成麝香(SMs)含量水平、化合物组成以及空间分布规律。沉积物中的合成麝香浓度(∑SMs)为0.448~1.43 ng/g,平均值为0.876 ng/g,在国内外沿海沉积物中处于较低水平;主要组分为佳乐麝香(HHCB,0.247~0.916 ng/g)和吐纳麝香(AHTN,0.193~0.589 ng/g),分别占∑SMs的48.7%~69.3%和30.7%~50.6%。台湾海峡中部临近台湾岛和大陆河流入海口区域∑SMs较高,反映了河流输入对海岸沉积物的影响。同时,在研究区域西北部∑SMs也较高,揭示出在多重洋流共同作用下,富含有机质的细颗粒可能被搬运并沉降于该区域,导致污染物的累积。The Taiwan Strait, located between Fujian Province and Taiwan Island, is a channel that connects the South and East China Seas. In this study, 32 surface sediment samples were collected in the western Taiwan Strait.Concentrations and spatial distributions of synthetic musks(SMs) in the sediment were investigated. The total SMs(∑SMs) in the sediment ranged from 0.448 to 1.43 ng/g, with an average of 0.876 ng/g, which was relatively low compared to global coastal sediments. The 1,3,4,6,7,8-hexahydro-4,6,6,7,8,8-hexamethylcyclopenta-(g)2-benzopyrane(HHCB, 0.247 to 0.916 ng/g) and 7-acetyl-1,1,3,4,4,6-hexamethyl-tetraline(AHTN, 0.193 to 0.589 ng/g)were the main components. Higher sedimentary ∑SMs were detected in sediment adjacent to river mouths from the Mainland and Taiwan Island, indicating their terrestrial riverine inputs. Higher levels of ∑SMs were also found in sediment in the northwestern part of the study region, suggesting that the SMs adsorbed onto fine particles could be carried to this studied region, then deposited into coastal sediment under multiple ocean currents.

关 键 词：海岸带沉积物 合成麝香 台湾海峡 

分 类 号：X142[环境科学与工程—环境科学]