黄渤海区域水产品中全氟烷基物质的分布特征

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Abstract A total of 1225 samples of fish, marine shellfish, crustaceans, cephalopods and rare marine animals including sea cucumber and abalone, were collected from 23 cities with high production and consumption of aquatic products in coastal and adjacent areas of the Yellow Sea and Bohai Sea, China. The concentrations of 23 kinds of perfluoroalkyl substances (PFASs) were determined by ultra-fast liquid chromatography-tandem mass spectrometry (UFLC-MS/MS), and the distribution characteristics of PFASs in these areas were investigated. The contamination by PFASs in aquatic products changed depending on the components of PFASs, the species of aquatic products, and the sampling sites in this study. Among the 23 PFASs tested, 20 PFASs components were detected. Perfluorooctanesulfonic acid (PFOS) and perfluorooctanoic acid (PFOA) had the highest detection rates, 79.1% and 71.7%, respectively, which were the dominant components. Compared with PFOS, the detection level of PFOA contributed to 64.5% of total PFASs concentrations in aquatic product samples, indicating that PFOA was the major threat to the safety of aquatic products. The relatively high concentration of total PFAS was found in Weifang, Binzhou and Dongying near the Laizhou Bay, Cangzhou near the Bohai Bay and Yingkou near the Liaodong Bay, and the levels were 10.2~16.8 μg/kg. The number of detected components of PFASs in different aquatic products species showed the following trend: fish (20) > marine shellfish, crustaceans (18) > rare seafood (16) > cephalopods (10). The most frequently detected compounds in shellfish or rare seafood samples was PFOA, and the most frequently detected compounds among fish and crustacean samples was PFOS, while in cephalopods was perfluorooctane sulfonamide (PFOSA). By calculating the average contents of individual component of PFASs in different aquatic products, it was found that the average contents of PFOA, PFOS, perfluoroundecanoic acid (PFUdA) and PFOSA were relatively high, and the obvious differences were observed in different components. The results of risk assessment indicated that the contamination concentrations of PFASs in aquatic products in coastal and adjacent areas of the Yellow Sea and Bohai Sea would not give rise to timely harm to the consumers.

Key words： perfluoroalkyl substances (PFASs) distribution concentration risk assessment aquatic products

Received: 28 December 2019

PACS:

X703.5

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	Articles by authors
	GUO Meng-meng
	CUI Wen-jie
	LIU Xiao-yu
	PENG Ji-xing
	ZHENG Guan-chao
	WU Hai-yan
	ZHAI Yu-xiu
	TAN Zhi-jun

Cite this article:

GUO Meng-meng,CUI Wen-jie,LIU Xiao-yu等. Distribution of perfluoroalkyl substances in aquatic products in coastal and adjacent areas of the Yellow Sea and Bohai Sea, China[J]. CHINA ENVIRONMENTAL SCIENCECE, 2020, 40(8): 3424-3432.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2020/V40/I8/3424

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