Occurrences and distribution characteristics of organophosphate ester flame retardants and plasticizers in the sediments of the Bohai and Yellow Seas, China
Occurrences and distribution characteristics of organophosphate ester flame retardants and plasticizers in the sediments of the Bohai and Yellow Seas, China
复制标题
渤海、黄海沉积物中有机磷酸酯类阻燃剂和增塑剂的赋存及分布特征
DOI：
10.1016/j.scitotenv.2017.09.272
复制
发表时间：
2018
影响因子：
9.8
通讯作者：
Xie Zhiyong
中科院分区：
文献类型：
--
作者：
Zhong Mingyu;Wu Huifeng;Mi Wenying;Li Fei;Ji Chenglong;Ebinghaus Ralf;Tang Jianhui;Xie Zhiyong
首次对渤海和黄海表层沉积物中有机磷酸酯（OPEs）的含量和分布特征进行了分析和讨论。三种卤代OPEs [tris-在该区域检测到了磷酸三异丁酯（TiBP）、磷酸三正丁酯（TnBP）、磷酸三戊酯（TPeP）、磷酸三苯酯（TPhP）和磷酸三（2-乙基己基）酯（TEHP）。8种有机污染物的浓度范围为83至4552皮克/克干重（dw）。卤代OPEs的丰度高于非卤代OPEs，主要化合物为TCEP、TCPP和TEHP。总体上，BS中的OPEs浓度高于YS中的浓度。河流输入（主要是长江冲淡水）和淤泥质地区的沉积作用可能影响了OPEs的空间分布。OPE浓度与总有机碳（TOC）的相关性表明，TOC是指示OPE分布的有效指标。对OPEs的清单分析表明，海洋沉积物可能不是这些化合物的主要储存库。
Concentrations and distribution characteristics of organophosphate esters (OPEs) in surface sediment samples were analyzed and discussed for the first time in the open Bohai Sea (BS) and Yellow Sea (YS). Three halogenated OPEs [tris-(2-chloroethyl) phosphate (TCEP), tris-(1-chloro-2-propyl) phosphate (TCPP), and tris-(1,3-dichloro-2-propyl) phosphate (TDCPP)] and five non-halogenated OPEs [tri-isobutyl phosphate (TiBP), tri-n-butyl phosphate (TnBP), tripentyl phosphate (TPeP), triphenyl phosphate (TPhP) and tris-(2-ethylhexyl) phosphate (TEHP)] were detected in this region. The concentrations of eight OPEs in total (Σ8OPEs) ranged from 83 to 4552 pg g− 1dry weight (dw). The halogenated OPEs showed higher abundances than the non-halogenated ones did, with TCEP, TCPP, and TEHP the main compounds. Generally, concentrations of OPEs in the BS were higher than those in the YS. Riverine input (mainly the Changjiang Diluted Water (CDW)) and deposition effect in the mud areas might have influenced the spatial distributions of OPEs. Correlation between OPE concentrations and total organic carbon (TOC) indicated TOC was an effective indicator for the distribution of OPEs. Inventory analysis of OPEs implied that sea sediment might not be the major reservoir of these compounds.