Mercury and other trace elements distribution and profiling of microbial community in the surface sediments of East Siberian Sea
- Authors
- Chaudhary, Dhiraj Kumar; Karki, Hem Prakash; Bajagain, Rishikesh; Kim, Hwansuk; Rhee, Tae Siek; Hong, Jong Kuk; Han, Seunghee; Choi, Young-Gyun; Hong, Yongseok
- Issue Date
- Dec-2022
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- Total mercury; Methylmercury; Trace elements; Microbial communities; Surface sediment; Arctic
- Citation
- MARINE POLLUTION BULLETIN, v.185
- Indexed
- SCIE
SCOPUS
- Journal Title
- MARINE POLLUTION BULLETIN
- Volume
- 185
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/190564
- DOI
- 10.1016/j.marpolbul.2022.114319
- ISSN
- 0025-326X
1879-3363
- Abstract
- In this study, total mercury (THg), methylmercury (MeHg), various trace elements, and microbial communities were measured in surface sediments of the East Siberian Sea (ESS). The results showed that the average values of THg and MeHg were 58.8 +/- 15.21 mu g/kg and 0.50 +/- 0.22 mu g/kg, respectively. The notable levels of trace ele-ments present in both surface sediment and porewater were Al, Fe, and Mn. The enrichment factor and geo-accumulation index analyses found that both natural phenomena and anthropogenic activities contributed to elevated concentrations of metals in the ESS. The redox proxy metals, pH, and SO42-; were the major factors influencing the THg and MeHg distributions. Microbial profiles were substantially affected by metals and other abiotic factors. Proteobacteria and Thaumarchaeota were the most abundant phyla. Overall, the findings presented here facilitate the understanding of the current status of metal contamination, its influencing factors, and metal-microbiota-interactions in ESS.
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Collections - College of Science and Technology > ETC > 1. Journal Articles
- Graduate School > Department of Environmental Engineering > 1. Journal Articles

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