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The impact of organic carbon mineralization on pollution and toxicity of toxic metal in sediments: Yellow Sea and East China Sea study

文献类型：期刊论文

作者Zhao, Miao1,2; Pan, Dawei3; Zhang, Shenghui3
刊名ENVIRONMENTAL RESEARCH
出版日期2024-12-01
卷号262页码:12
关键词Toxic metal Organic carbon mineralization Sediment Porewater Yellow Sea East China Sea
ISSN号0013-9351
DOI10.1016/j.envres.2024.119850
通讯作者Pan, Dawei(dwpan@yic.ac.cn)
英文摘要Organic carbon mineralization is the main driving force of metal migration and transformation in sediments, greatly influencing the distribution, pollution degree, and toxicity of toxic metals. However, relevant research on this subject is still limited. In this study, the concentration of toxic metals (Cr, Cd, Cu, Pb, Zn, Co, Fe, Mn, Ni, As) in the solid and liquid phase (porewater) of sediments were measured, toxic metal pollution degree and toxicity of the Yellow Sea (YS) and the East China Sea (ECS) were assessed. Combined with the rate of organic carbon mineralization, the impact of organic carbon mineralization was analyzed. The results showed that Ni was slightly enriched and posed a certain ecological risk, and As was moderately enriched in the studied area, Pb was at a moderate pollution level in the studied area. Zn, Co, Mn, and Fe were at a moderate pollution level in the mud area of SYS and the west coastal area of ECS. Additionally, the total organic carbon mineralization rate (TCMR) in the ECS (5.12-18.04 mmol C m- 2 d- 1) was slightly higher than that in the YS (3.29-14.46 mmol C m- 2 d- 1) during spring. Moreover, organic carbon mineralization promotes metal enrichment, and the TCMR was significantly correlated with the pollution load index. Thus, TCMR can be used as an indicator to predict the degree of metal pollution. Furthermore, organic carbon mineralization promotes the mobilization of Cu from the solid phase to the liquid phase, while facilitating the transfer of Cr, Pb, Co, Ni, and Fe from the liquid phase to the solid phase. This process increases the potential risks of Cu and reduces the toxicity of Cr, Pb, Co, Ni, and Fe. Therefore, the impact of organic carbon mineralization should be considered in future assessments and predictions of toxic metal pollution and toxicity.
WOS关键词SURFACE SEDIMENTS ; CADMIUM ; MATTER ; ZN ; CD ; CU ; ADSORPTION ; CHANGJIANG ; REDUCTION ; OXIDATION
WOS研究方向Environmental Sciences & Ecology ; Public, Environmental & Occupational Health
语种英语
WOS记录号WOS:001308800600001
资助机构Key R & D Program of Shandong Prov-ince, China ; Original Innovation Project of Chinese Academy of Sciences ; Taishan Scholar Project of Shandong Province
源URL[http://ir.yic.ac.cn/handle/133337/35626]  
专题烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
烟台海岸带研究所_山东省海岸带环境工程技术研究中心
通讯作者Pan, Dawei
作者单位1.Jiangsu Ocean Univ, Jiangsu Key Lab Marine Bioresources & Environm, 59 Cangwu Rd, Haizhou 222005, Lianyungang, Peoples R China
2.Jiangsu Inst Marine Resources Dev, 59 Cangwu Rd, Haizhou 222005, Lianyungang, Peoples R China
3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Res Ctr Coastal Environm Engn Technol Shandong Pro, Shandong Key Lab Coastal Environm Proc,CAS Key Lab, Yantai 264003, Peoples R China
推荐引用方式
GB/T 7714		 Zhao, Miao,Pan, Dawei,Zhang, Shenghui. The impact of organic carbon mineralization on pollution and toxicity of toxic metal in sediments: Yellow Sea and East China Sea study[J]. ENVIRONMENTAL RESEARCH,2024,262:12.
APA Zhao, Miao,Pan, Dawei,&Zhang, Shenghui.(2024).The impact of organic carbon mineralization on pollution and toxicity of toxic metal in sediments: Yellow Sea and East China Sea study.ENVIRONMENTAL RESEARCH,262,12.
MLA Zhao, Miao,et al."The impact of organic carbon mineralization on pollution and toxicity of toxic metal in sediments: Yellow Sea and East China Sea study".ENVIRONMENTAL RESEARCH 262(2024):12.

入库方式： OAI收割

来源：烟台海岸带研究所

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