Legacy and emerging persistent organic pollutants in the marginal seas of China: Occurrence and phase partitioning.

Autor: Wang S; State Key Laboratory of Marine Environmental Science, College of the Environment &Ecology, Xiamen University, Xiamen 361102, China., Ding G; College of Environmental Science and Engineering, Dalian Maritime University, Dalian 116026, China., Liu Y; State Key Laboratory of Marine Environmental Science, College of the Environment &Ecology, Xiamen University, Xiamen 361102, China., Dou Z; State Key Laboratory of Marine Environmental Science, College of the Environment &Ecology, Xiamen University, Xiamen 361102, China., Chen H; State Key Laboratory of Marine Environmental Science, College of the Environment &Ecology, Xiamen University, Xiamen 361102, China., Ya M; State Key Laboratory of Marine Environmental Science, College of the Environment &Ecology, Xiamen University, Xiamen 361102, China., Lin X; State Key Laboratory of Marine Environmental Science, College of the Environment &Ecology, Xiamen University, Xiamen 361102, China., Li Q; State Key Laboratory of Marine Environmental Science, College of the Environment &Ecology, Xiamen University, Xiamen 361102, China., Li Y; State Key Laboratory of Marine Environmental Science, College of the Environment &Ecology, Xiamen University, Xiamen 361102, China., Wang X; State Key Laboratory of Marine Environmental Science, College of the Environment &Ecology, Xiamen University, Xiamen 361102, China. Electronic address: xhwang@xmu.edu.cn.
Jazyk: angličtina
Zdroj: The Science of the total environment [Sci Total Environ] 2022 Jun 25; Vol. 827, pp. 154274. Date of Electronic Publication: 2022 Mar 03.
DOI: 10.1016/j.scitotenv.2022.154274
Abstrakt: Emerging per-and polyfluoroalkyl substances (PFASs) and traditional organochlorine pesticides (OCPs), polycyclic aromatic hydrocarbons (PAHs) in the marginal seas of China were analyzed to study the occurrence, transport and phase partitioning. The influence of organic carbon (OC) and element carbon (EC) on particulate emerging pollutants in seawater was studied for the first time. The concentrations of PFASs, OCPs and PAHs in the seawater (dissolved phase plus particulate phase) ranged from 1.4 to 8.6, 0.76 to 4.3 and 8.4 to 130 ng L -1 , respectively. Pollutants in the northern East China Sea were generally higher than that in the southern East China Sea and South China Sea, which may be attribute to river discharges and land sources in the Yangtze River Delta. The Yellow Sea Coastal Current and Yangtze River Dilute Water drove the transport of contaminants from north to south marginal seas. Positive correlations between EC and PAHs were found, which can be explained by co-emission of them during combustion. Moreover, positive correlations between OC, EC and Log K d for BkF, BeP, HCB, 6:2 FTSA were found, which demonstrated that OC and EC promoted the partitioning of these high oleophilic compounds to suspended particle.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2022 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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