期刊
MARINE POLLUTION BULLETIN
卷 151, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2019.110831
关键词
Phthalate acid esters; Plastic debris; DEHP; East China Sea; Vertical profile; Water mass characterization
资金
- National Research Foundation of Korea (NRF) - Korea government (MSIT) [2017R1E1A1A01073137]
- Korea Institute of Ocean Science and Technology [PE99653]
- National Research Foundation of Korea (NRF) - Ministry of Education [NRF-2017R1A6A1A06015181]
- National Research Foundation of Korea [2017R1E1A1A01073137] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Phthalate acid esters (PAEs) are commonly used as plasticizers in numerous plastic applications. Owing to their high leachability, the occurrence of PAEs can be used to trace plastic pollution. The northwest Pacific marginal seas, including the East China Sea, are suspected not only to be the area that receives the most plastic waste globally but also transit the waste to the ocean worldwide. To identify the potential sources of PAEs in this area, seawater at different water depths and sediment were investigated. The highest level of di(2-ethylhexyl) phthalate (DEHP), which is primarily used in plastic polymers, was observed in the accumulation zone of plastic debris. Moreover, DEHP exhibited not only the highest levels in the bottom layer of water column but also a significant correlation between bottom water layer and bed sediment, which strongly suggests a continuous flow of PAEs from the seafloor to the seawater column in this area.
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