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

doi:10.1016/j.envres.2024.119850

	The impact of organic carbon mineralization on pollution and toxicity of toxic metal in sediments: Yellow Sea and East China Sea study
	Zhao, Miao 1,3; Pan, Dawei2 ; Zhang, Shenghui 2
发表期刊	ENVIRONMENTAL RESEARCH
ISSN	0013-9351
	2024-12-01
卷号	262 页码:12
关键词	Toxic metal Organic carbon mineralization Sediment Porewater Yellow Sea East China Sea
DOI	10.1016/j.envres.2024.119850
通讯作者	Pan, Dawei([email protected])
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.
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
收录类别	SCI
语种	英语
关键词[WOS]	SURFACE SEDIMENTS ; CADMIUM ; MATTER ; ZN ; CD ; CU ; ADSORPTION ; CHANGJIANG ; REDUCTION ; OXIDATION
研究领域[WOS]	Environmental Sciences & Ecology ; Public, Environmental & Occupational Health
WOS记录号	WOS:001308800600001
引用统计
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/35627
专题	中国科学院海岸带环境过程与生态修复重点实验室中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境工程技术研究与发展中心
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.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 3.Jiangsu Inst Marine Resources Dev, 59 Cangwu Rd, Haizhou 222005, Lianyungang, 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.