Ji Bingjing, Liu Yi, Wu Yang, Liang Yi, Gao Shutao, Zeng Xiangying, Yao Peng, 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, China; CAS Center for Excellence in Deep Earth Science, Guangzhou 510640, China; University of Chinese Academy of Sciences, Beijing 100049, China.
Nanjing University & Yancheng Environmental Detecting Technology Co., Ltd, Yancheng, 224000, China.
Mar Pollut Bull. 2022 Jun;179:113661. doi: 10.1016/j.marpolbul.2022.113661. Epub 2022 Apr 21.
Occurrence, distribution, and potential ecological risks of ten organophosphate esters (OPEs) and nine synthetic musks (SMs) were investigated in sediments from the Yangtze River Estuary (YRE) and adjacent East China Sea (ECS). The total concentrations of OPEs in the surface sediments ranged from 0.977 to 19.0 ng/g dry weight (dw) with tris(2-chloro-propyl) phosphate being the dominant component. Total concentrations of SMs ranged from 0.176 to 7.25 ng/g dw, with 1,3,4,6,7,8-hexahydro-4,6,6,7,8,8-hexamethylcyclopenta(g)-2-benzopyran and 7-acetyl-1,1,3,4,4,6-hexamethyl-1,2,3,4-tetrahydronaphthalene as the dominant SMs. Higher sedimentary concentrations of ΣOPEs and ΣSMs were found in the river mouths of the YRE, inter face of Hangzhou Bay, and mud area of the ECS; the results suggested that terrestrial discharge might be the main source of OPEs and SMs in the studied region. Risk assessment revealed that low ecological risks were posed by OPEs, and limited to low ecological risks were posed by SMs.
对长江口（YRE）及毗邻的东海（ECS）沉积物中10种有机磷酸酯（OPEs）和9种合成麝香（SMs）的存在情况、分布及潜在生态风险进行了调查。表层沉积物中OPEs的总浓度范围为0.977至19.0纳克/克干重（dw），其中磷酸三（2-氯丙基）酯为主要成分。SMs的总浓度范围为0.176至7.25纳克/克干重，其中1,3,4,6,7,8-六氢-4,6,6,7,8,8-六甲基环戊二烯并[g]-2-苯并吡喃和7-乙酰基-1,1,3,4,4,6-六甲基-1,2,3,4-四氢萘为主要的SMs。在长江口河口、杭州湾界面和东海泥质区发现了较高的ΣOPEs和ΣSMs沉积浓度；结果表明，陆源排放可能是研究区域内OPEs和SMs的主要来源。风险评估显示，OPEs造成的生态风险较低，SMs造成的生态风险限于低水平。
