Concentrations and distribution of novel brominated flame retardants in the atmosphere and soil of Ny-Ålesund and London Island, Svalbard, Arctic. 2020

Yanfen Hao, and Wenying Meng, and Yingming Li, and Xu Han, and Huili Lu, and Pu Wang, and Ruiqiang Yang, and Qinghua Zhang, and Guibin Jiang
State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.

Novel brominated flame retardants (NBFRs) were investigated in Arctic air and soil samples collected from Ny-Ålesund and London Island, Svalbard, during Chinese scientific research expeditions to the Arctic during 2014-2015. The concentrations of Σ9NBFRs in the Arctic air and soil were 4.9-8.7 pg/m3 (average 6.8 pg/m3) and 101-201 pg/g dw (average 150 pg/g dw), respectively. The atmospheric concentration of hexabromobenzene (HBB) was significantly correlated with that of pentabromotoluene (PBT) and pentabromobenzene (PBBz), suggesting similar source and environmental fate in the Arctic air. No significant spatial difference was observed among the different sampling sites, both for air and soil samples, indicating that the effects of the scientific research stations on the occurrence of NBFRs in the Arctic were minor. The fugacities from soil to air of pentabromoethylbenzene (PBEB), 2,3-dibromopropyl 2,4,6-tribromophenyl ether (DPTE), and decabromodiphenylethane 1,2-bis (pentabromophenyl) ethane (DBDPE) were lower than the equilibrium value, indicating a nonequilibrium state of these compounds between air and soil, the dominant impact of deposition and the net transport from air to soil. The correlation analysis between the measured and predicted soil-atmosphere coefficients based on the absorption model showed that the impact of the soil organic matter on the distribution of NBFRs in the Arctic region was minor. To the best of our knowledge, this work is one of the limited reports on atmospheric NBFRs in the Arctic and the first study to investigate the occurrence and fate of NBFRs in the Arctic soil.

UI MeSH Term Description Entries
D008131 London The capital of the United Kingdom. It is located in England.
D004784 Environmental Monitoring The monitoring of the level of toxins, chemical pollutants, microbial contaminants, or other harmful substances in the environment (soil, air, and water), workplace, or in the bodies of people and animals present in that environment. Monitoring, Environmental,Environmental Surveillance,Surveillance, Environmental
D005411 Flame Retardants Materials applied to fabrics, bedding, furniture, plastics, etc. to retard their burning; many may leach out and cause allergies or other harm. Fire Retardant,Fire Retardants,Fireproofing Agent,Fireproofing Agents,Flame Retardant,Agent, Fireproofing,Agents, Fireproofing,Retardant, Fire,Retardant, Flame,Retardants, Fire,Retardants, Flame
D001110 Arctic Regions The Arctic Ocean and the lands in it and adjacent to it. It includes Point Barrow, Alaska, most of the Franklin District in Canada, two thirds of Greenland, Svalbard, Franz Josef Land, Lapland, Novaya Zemlya, and Northern Siberia. (Webster's New Geographical Dictionary, 1988, p66)
D001272 Atmosphere The gaseous envelope surrounding a planet or similar body. (From Random House Unabridged Dictionary, 2d ed) Atmospheres
D012987 Soil The unconsolidated mineral or organic matter on the surface of the earth that serves as a natural medium for the growth of land plants. Peat,Humus,Soils
D013538 Svalbard Norwegian islands located in the Arctic Ocean, halfway between Norway and the North Pole Spitsbergen
D055768 Halogenated Diphenyl Ethers Compounds that contain two halogenated benzene rings linked via an OXYGEN atom. Many polybrominated diphenyl ethers are used as FLAME RETARDANTS. Brominated Diphenyl Ethers,Chlorinated Diphenyl Ethers,Fluorinated Diphenyl Ethers,Iodinated Diphenyl Ethers,PBDE Compounds,PBDEs,PCDE Compounds,PCDEs,Polybrominated Diphenyl Ethers,Diphenyl Ethers, Brominated,Diphenyl Ethers, Chlorinated,Diphenyl Ethers, Fluorinated,Diphenyl Ethers, Halogenated,Diphenyl Ethers, Iodinated,Diphenyl Ethers, Polybrominated,Ethers, Brominated Diphenyl,Ethers, Chlorinated Diphenyl,Ethers, Fluorinated Diphenyl,Ethers, Halogenated Diphenyl,Ethers, Iodinated Diphenyl,Ethers, Polybrominated Diphenyl
D062312 Islands Tracts of land completely surrounded by water.

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