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Chemosphere

Title:		Fate of polycyclic aromatic hydrocarbons from the North Pacific to the Arctic: Field measurements and fugacity model simulation
Author(s):		Ke H; Chen M; Liu M; Chen M; Duan M; Huang P; Hong J; Lin Y; Cheng S; Wang X; Huang M; Cai M;
Address:		"State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361102, China; Fujian Provincial Key Laboratory for Coastal Ecology and Environmental Studies, Xiamen University, Xiamen 361102, China; College of Ocean and Earth Science, Xiamen University, Xiamen 361102, China. College of Ocean and Earth Science, Xiamen University, Xiamen 361102, China. College of the Environment and Ecology, Xiamen University, Xiamen 361102, China. College of Ocean Science and Resource, National Taiwan Ocean University, Keelung 20224, China. State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361102, China; Fujian Provincial Key Laboratory for Coastal Ecology and Environmental Studies, Xiamen University, Xiamen 361102, China; College of Ocean and Earth Science, Xiamen University, Xiamen 361102, China. Electronic address: mgcai@xmu.edu.cn"
Journal Title:		Chemosphere
Year:		2017
Volume:		20170616
Issue:
Page Number:		916 - 923
DOI:		10.1016/j.chemosphere.2017.06.058
ISSN/ISBN:		1879-1298 (Electronic) 0045-6535 (Linking)
Abstract:		"Polycyclic aromatic hydrocarbons (PAHs) have accumulated ubiquitously inArctic environments, where re-volatilization of certain organic pollutants as a result of climate change has been observed. To investigate the fate of semivolatile organic compounds in the Arctic, dissolved PAHs in the surface seawaters from the temperate Pacific Ocean to the Arctic Ocean, as well as a water column in the Arctic Ocean, were collected during the 4th Chinese National Arctic Research Expedition in summer 2010. The total concentrations of seven dissolved PAHs in surface water ranged from 1.0 to 5.1 ng L(-1), decreasing with increasing latitude. The vertical profile of PAHs in the Arctic Ocean was generally characteristic of surface enrichment and depth depletion, which emphasized the role of vertical water stratification and particle settling processes. A level III fugacity model was developed in the Bering Sea under steady state assumption. Model results quantitatively simulated the transfer processes and fate of PAHs in the air and water compartments, and highlighted a summer air-to-sea flux of PAHs in the Bering Sea, which meant that the ocean served as a sink for PAHs, at least in summer. Acenaphthylene and acenaphthene reached equilibrium in air-water diffusive exchange, and any perturbation, such as a rise in temperature, might lead to disequilibrium and remobilize these compounds from their Arctic reservoirs"
Keywords:		"Air Pollutants/analysis Arctic Regions Climate Change *Environmental Monitoring *Models, Chemical Models, Theoretical Organic Chemicals Pacific Ocean Polycyclic Aromatic Hydrocarbons/*analysis Seasons Seawater/chemistry Volatilization Water Pollutants, Ch;"
Notes:		"MedlineKe, Hongwei Chen, Mian Liu, Mengyang Chen, Meng Duan, Mengshan Huang, Peng Hong, Jiajun Lin, Yan Cheng, Shayen Wang, Xuran Huang, Mengxue Cai, Minggang eng England 2017/06/28 Chemosphere. 2017 Oct; 184:916-923. doi: 10.1016/j.chemosphere.2017.06.058. Epub 2017 Jun 16"