Fate of organophosphate esters from the Northwestern Pacific to the Southern Ocean:Occurrence,distribution,and fugacity model simulation  

作　　者：Tengda Shi Ruijing Li Jie Fu Chao Hou Hui Gao Guanjie Cheng Haibo Zhang Shuaichen Jin Liang Kong Guangshui Na 

机构地区：[1]College of Marine Technology and Environment,Dalian Ocean University,Dalian 116023,China [2]Laboratory for coastal marine eco-environment process and carbon sink of Hainan province/Yazhou Bay Innovation Institute,Hainan Tropical Ocean University,Sanya 572022,China [3]National Marine Environmental Monitoring Center,Dalian 116023,China [4]College of Marine Ecology and Environment,Shanghai Ocean University,Shanghai 201306,China [5]NCS Testing Technology Co.,Ltd.,Beijing 10081,China

出　　处：《Journal of Environmental Sciences》2024年第3期347-357,共11页环境科学学报（英文版）

基　　金：supported by the Hainan Provincial Joint Project of Sanya Yazhou Bay Science and Technology City (No.2021CXLH0009);the National Natural Science Foundation of China (Nos.42006195 and 41976222);the Scientific Research Foundation of Hainan Tropical Ocean University (No.RHDRC202201);the Science and Technology Project of Yazhou Bay Innovation Institute of Hainan Tropical Ocean University (No.2022CXYZD002)。

摘　　要：Eleven organophosphate esters(OPEs)in the air and seawater were investigated from the northwestern Pacific Ocean to the Southern Ocean during the 2018 Chinese 34th Antarctic Scientific Expedition.The concentration of total OPEs ranged from 164.82 to 3501.79 pg/m~3in air and from 4.54 to 70.09 ng/L in seawater.Two halogenated OPEs,tri(chloropropyl)phosphate(TCPP)and tri(2-chloroethyl)phosphate(TCEP),were generally more abundant than the non-halogenated OPEs.A levelⅢfugacity model was developed to simulate the transfer and fate of seven OPEs in the air and seawater regions of the central Ross Sea.The model results indicate that OPEs are transferred from the air to the seawater in the central Ross Sea in summer,during which the Ross Sea acts as a final OPE sink.Dry and wet deposition dominated the processes involving OPE transfer to seawater.The OPE degradation process was also found to be more pervasive in the atmosphere than in the seawater region.These findings highlights the importance of long-range transport of OPEs and their air–seawater interface behavior in the Antarctic.

关 键 词：Organophosphate esters(OPEs) Long-range transport Fugacity model ANTARCTIC FATE 

分 类 号：X145[环境科学与工程—环境科学]