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Mass Budget of Mercury (Hg) in the Seawater of Eastern China Marginal Seas: Importance of the Sediment-Water Transport Processes
Chen, Lufeng; Liu, Chang; Yin, Yongguang; Liu, Guangliang; Li, Yanbin; Cai, Yong
2022-08-16
Source PublicationENVIRONMENTAL SCIENCE & TECHNOLOGY
ISSN0013-936X
Volume56Issue:16Pages:11418-11428
AbstractThe Eastern China Marginal Seas (ECMS) have been facing a variety of environmental problems, including mercury (Hg) pollution. Although several previous studies have been focused on mass balance of Hg in the ECMS, the contribution of Hg transport at the sediment-water interface remains unclear. This study was aimed to access and quantify the importance of sediment-water transport processes in Hg cycling. Significantly positive correlations were observed between Hg concentrations in the overlying and bottom water and the diffusion rates of Hg from sediment to the water. Approximately 2-3 times higher of THg concentrations in the entire water column were observed in a winter cruise with strong waves which was supposed to strengthen the resuspension process. The mass budget of Hg in the ECMS further showed that diffusion and resuspension processes accounted for approximate 46%, 60%, and 16% of total input Hg in the BS, YS, and ECS, respectively. These results suggest that the sediment-water transport processes play an important role in Hg cycling in the ECMS. As an important pool of Hg in the ECMS, the transport of Hg at the sediment-water interface may affect the long-term risk assessment of Hg in these systems.
Department环境纳米技术与健康效应重点实验室 ; 环境纳米技术与健康效应重点实验室
KeywordBENTHIC FLUX MEASUREMENTS BOHAI SEA YELLOW SEA GASEOUS MERCURY COASTAL AREAS GRADO LAGOON HEAVY-METALS METHYLMERCURY BAY EXCHANGE
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/47662
Collection环境纳米技术与健康效应重点实验室
Corresponding AuthorLi, Yanbin
Affiliation1.Ocean Univ China, Frontiers Sci Ctr Deep Ocean Multispheres & Earth, Qingdao 266100, Peoples R China
2.Ocean Univ China, Key Lab Marine Chem Theory & Technol, Minist Educ, Qingdao 266100, Peoples R China
3.Ocean Univ China, Coll Chem & Chem Engn, Qingdao 266100, Peoples R China
4.Jianghan Univ, Sch Environm & Hlth, Hubei Key Lab Environm & Hlth Effects Persistent T, Wuhan 430056, Peoples R China
5.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Lab Environm Nanotechnol & Hlth Effect, Beijing 1000
Recommended Citation
GB/T 7714
Chen, Lufeng,Liu, Chang,Yin, Yongguang,et al. Mass Budget of Mercury (Hg) in the Seawater of Eastern China Marginal Seas: Importance of the Sediment-Water Transport Processes[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2022,56(16):11418-11428.
APA Chen, Lufeng,Liu, Chang,Yin, Yongguang,Liu, Guangliang,Li, Yanbin,&Cai, Yong.(2022).Mass Budget of Mercury (Hg) in the Seawater of Eastern China Marginal Seas: Importance of the Sediment-Water Transport Processes.ENVIRONMENTAL SCIENCE & TECHNOLOGY,56(16),11418-11428.
MLA Chen, Lufeng,et al."Mass Budget of Mercury (Hg) in the Seawater of Eastern China Marginal Seas: Importance of the Sediment-Water Transport Processes".ENVIRONMENTAL SCIENCE & TECHNOLOGY 56.16(2022):11418-11428.
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