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Import, export, and speciation of mercury in Kongsfjorden, Svalbard: Influences of glacier melt and river discharge

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Title
Import, export, and speciation of mercury in Kongsfjorden, Svalbard: Influences of glacier melt and river discharge
Other Titles
스발바르 콩스피오르드의 수은 거동연구 : 빙하 및 강물의 영향연구
Authors
김지희
권세윤
Kim, Kitae
한승희
Keywords
GlacierKongsfjordenMethylationMethylmercurySERAFMTotal mercury
Issue Date
2022
Citation
김지희, et al. 2022. "Import, export, and speciation of mercury in Kongsfjorden, Svalbard: Influences of glacier melt and river discharge". MARINE POLLUTION BULLETIN, 179(1): 1-10.
Abstract
The major sources and sinks of total mercury (THg) and methylmercury (MeHg) in Kongsfjorden were estimated based on spreadsheet-based ecological risk assessment for the fate of mercury (SERAFM). SERAFM was parameterized and calibrated to fit Kongsfjorden using the physical properties of the fjord, runoff coefficients of Hg, transformation rate constants of Hg, partition coefficients of Hg, Hg loadings from freshwater, and solid balance parameters. The modeled Hg concentrations in the seawater matched with the measured concentrations, with a mean bias of 12% and a calibration error of 0.035. The mass budget showed that the major THg sources were tidal inflow and glacial runoff, while the major MeHg sources were tidal inflow and in situ methylation in shallow halocline water, which agreed with the distributions of THg and MeHg in seawater. The coupling of observation and fate modeling in Kongsfjorden provides a basic understanding of Hg cycles in the Arctic fjords.
URI
https://repository.kopri.re.kr/handle/201206/13862
DOI
http://dx.doi.org/10.1016/j.marpolbul.2022.113693
Type
Article
Station
Dasan Station
Indexed
SCIE
Appears in Collections  
2022-2022, Investigation of ice microstructure properties for developing low-temperature purification and environment/energy materials (22-22) / Kim, Kitae (PE22120)
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