Concentrations and tissue-specific distributions of organic ultraviolet absorbents in wild fish from a large subtropical lake in China.

Autor: Tang Z; College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China; College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China. Electronic address: zwtang@ncepu.edu.cn., Zhong F; College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China., Cheng J; Key Laboratory of Trace Element Nutrition of National Health and Family Planning Commission, National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China., Nie Z; State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China. Electronic address: niezq@craes.org.cn., Han X; College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China., Han Y; College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China., Yang Y; State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China. Electronic address: cqyyf@163.com.
Jazyk: angličtina
Zdroj: The Science of the total environment [Sci Total Environ] 2019 Jan 10; Vol. 647, pp. 1305-1313. Date of Electronic Publication: 2018 Aug 09.
DOI: 10.1016/j.scitotenv.2018.08.117
Abstrakt: Organic ultraviolet absorbents (UVAs) have been detected in various materials and biota, but little is known about the distributions of UVAs in the tissues of biota. In this study, tissue-specific UVA accumulation in six fish species from Lake Chaohu, China, was investigated. The sums of 12 UVA concentrations in muscles, gills, and livers were 7.65-120, 10.1-281, and 26.4-359 ng/g dry weight, respectively. Ethylhexyl methoxycinnamate, 4-methylbenzylidene-camphor, and 2-(2'-hydroxy-3',5'-di-tert-butylphenyl)-5-chlorobenzotriazole were the dominant UVAs. Ethylhexyl salicylate and homosalate have been found in the aquatic species firstly. UVAs were taken up to different degrees by different fish species. The UVA muscle bioconcentration factors were lower than predicted by the Estimation Programs Interface Suite model, suggesting that such models may overestimate UVA accumulation in fish. The tissue distribution patterns indicated that UVAs are easily transferred to the muscles after being absorbed through the gills. The liver was found to preferentially accumulate UVAs and have a high UVA accumulation capacity, implying liver damage may be caused by UVAs. This is the first time the partitioning of UVAs between the liver, muscle, and gills of freshwater fish has been studied. The data acquired will improve our understanding of the pharmacokinetics and toxicities of UVAs in aquatic organisms.
(Copyright © 2018. Published by Elsevier B.V.)
Databáze: MEDLINE
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