中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Distribution characteristics and controlling factors of typical heavy metals in Huanghe River estuary,China

文献类型:CNKI期刊论文

作者Yuxi LU; Dawei PAN; Tingting YANG; Chenchen WANG
发表日期2023-01-15
出处Journal of Oceanology and Limnology
关键词colloidal heavy metal size fraction Huanghe(Yellow) River estuary geochemical feature
英文摘要The geochemical characteristics and potential controlling factors of colloidal Zn,Cd,and Pb in Huanghe(Yellow) River estuary(HRE),China were investigated.The three metals were highly variable over a range of spatiotemporal scales,comprehensively forced by various physical and biological processes.Total dissolved Zn,Cd,and Pb varied from 200.1 to 321.7,2.6 to 4.1,and 0.5 to 1.0 nmol/L,respectively.Only one near-estuarine station of Zn had contamination factor values>1,which indicate the lower contaminant levels.Five dissolved species of Zn,Cd and Pb were fractionated,namely <1 kDa,1-3 kDa,3-10 kDa,10-100 kDa,and 100 kDa-0.45 μm.The <1 kDa truly dissolved phase was the main fraction of the three dissolved metals(50%-62%),while the 100-kDa-0.45-μm high molecular weight colloidal fraction was dominant in their respective colloidal phase.Territorial input and sediment acted as important sources of strong ligands and natural colloids for the HRE water system.<3-kDa Zn and Pb were susceptible to the dissolved oxygen,the behaviors of colloidal Zn and 3-10-kDa Pb were related to dissolved organic carbon(DOC).However,no significant correlation between each dissolved fraction of Cd and salinity,pH,temperature,colloidal organic carbon,and DOC was found in this study.Overall,these findings,completed by the evaluation of the dissolved species of Zn, Cd,and Pb at 10 sites over the river-sea mixing zone,provided new insights into the colloidal heterogeneity that affect metals geochemical features,migration and fate in estuaries.
文献子类CNKI期刊论文
资助机构Supported by the Original Innovation Project (No. ZDBS-LY-DQC009) ; the Strategic Priority Research Program of Chinese Academy of Sciences (No. XDB42000000) ; the National Key R&D Program of China (No. 2019YFD0901103)
v.41期:01页:152-167
语种英文;
分类号X522;X55
ISSN号2096-5508
源URL[http://ir.qdio.ac.cn/handle/337002/187206]  
专题中国科学院海洋研究所
作者单位1.InstituteofOceanology,ChineseAcademyofSciences
2.CASKeyLaboratoryofCoastalEnvironmentalProcessesandEcologicalRemediation,ShandongKeyLaboratoryofCoastalEnvironmentalProcesses,ResearchCenterforCoastalEnvironmentEngineeringTechnologyofShandongProvince,YantaiInstituteofCoastalZoneResearch,ChineseAcademyofSciences
3.UniversityofChineseAcademyofSciences
4.CollegeofChemistryandChemicalEngineering,YantaiUniversity
推荐引用方式
GB/T 7714
Yuxi LU,Dawei PAN,Tingting YANG,et al. Distribution characteristics and controlling factors of typical heavy metals in Huanghe River estuary,China. 2023.

入库方式: OAI收割

来源:海洋研究所

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