文献类型：期刊文献

英文题名：Speciation of Mercury and Environmental Factors in Profile Sediments from Mangrove Forests, Zhanjiang, China

作者：Zhao, Zike[1]; Chen, Fangfang[2]; Zhao, Lirong[2]; Zhang, Jibiao[2]; Feng, Mengqian[3]; Shi, Xintong[3]; Su, Wanyin[3]; Zhang, Hui[4]; Chen, Chunliang[1]

机构：[1] Analysis and Test Center, Guangdong Ocean University, Guangdong, Zhanjiang, 524088, China; [2] College of Coastal Agricultural Science, Guangdong Ocean University, Guangdong, Zhanjiang, 524088, China; [3] College of Chemistry and Environment, Guangdong Ocean University, Guangdong, Zhanjiang, 524088, China; [4] State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guizhou, Guiyang, 550081, China

年份：2023

外文期刊名：SSRN

收录：EI(收录号：20230115425)

语种：英文

外文关键词：Chemical speciation - Forestry - Mercury (metal)

外文摘要：We analyzed the distribution characteristics of mercury speciation and chemical factors in sediment of National Mangrove Reserve in Zhanjiang. The results showed that Organic-bound(Hg-OXI) mercury was the most predominant speciation in both high-tide and mid-tide zones, followed by residual mercury(Hg-RES). While the other three mercury-bound forms of iron-manganese mercury(Hg-RED), water-extractable mercury(Hg-WAT), and carbonate-bound mercury(Hg-ACID), which can be converted to bioavailable speciation according to environmental changes, accounted for less than 8% at each sediment level. Correlation analysis showed that the percentages of Hg-WAT, Hg-ACID and Hg-RED were correlated with pH, TOC and SO42- in the sediments. In the view of the stable total mercury concentration in the sediments of mangrove within the study area, attention should be paid to the proportion of Hg-WAT, Hg-ACID and Hg-RED as they affect the bioavailable mercury concentrations when environment changes. ? 2023, The Authors. All rights reserved.