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Source-risk and uncertainty assessment of trace metals in surface sediments of a human-dominated seaward catchment in eastern China

文献类型：期刊论文

作者Wang, Fangli5; Yu, Zihan5; Zhang, Yali1; Ni, Runxiang2; Li, Zhi5; Li, Shaojing3; Song, Ningning5; Liu, Jun5; Zong, Haiying5; Jiao, Wei4
刊名JOURNAL OF HAZARDOUS MATERIALS
出版日期2024-12-05
卷号480页码:10
关键词River sediment Trace metals Bioavailability-based source apportionment Source-risk assessment Uncertainty assessment
ISSN号0304-3894
DOI10.1016/j.jhazmat.2024.135960
产权排序2
英文摘要Current total concentration-based methods for source attribution and risk assessment often overestimate metal risks, thereby impeding the formulation of effective risk management strategies. This study aims to develop a framework for source-specific risk assessment based on metal bioavailability in surface river sediments from a human-dominated seaward catchment in eastern China. Metal bioavailability was quantified using chemical fractionation results, and source apportionment was conducted using the positive matrix factorization (PMF) model. Risk assessment integrated these findings using two indices: the Potential Ecological Risk Index ( PERI ) and the Mean Probable Effect Concentration Quotient ( mPEC-Q ), with uncertainty addressed via Monte Carlo simulations. Results indicated that average total concentrations of Cu, Pb, Zn, Cr, Hg, Cd, and As exceeded their respective background levels by 1.63 to 15.00 times. The residual fraction constituted the majority, accounting for 53.84 % to 77.79 % of total concentrations, suggesting significant natural origins. However, source apportionment revealed a predominant contribution from anthropogenic activities, including industrial smelting, agricultural practices, and atmospheric deposition. The contributions were found to vary between 5.35 % and 40.03 % when the total concentration was adjusted to bioavailable content. Total concentration-based PERT/ mPEC-Q assessments indicated high/moderate risk levels, decreasing to considerable/low risk levels with bioavailability adjustment. Hg and Cd were identified as priority metals. Further incorporating source appointment parameters into the risk assessment, industrial smelting was identified as the primary contributor, accounting for 66.06 % of total risk by total concentration and 65.63 % by bioavailability. This underscores the role of bioavailability in mitigating risk overestimation. Monte Carlo simulations validated industrial smelting as a major risk contributor. This study emphasizes the importance of considering bioavailability in the source-risk assessment of sediment-metals, crucial for targeted risk management in urbanized catchment areas.
资助项目Humanities and Social Science Foundation Project of Ministry of Education[22YJCZH166] ; National Natural Science Foundation of China[41701562] ; National Key Research and Development Program of China[2023YFD1700105] ; Natural Science Foundation of Shandong Province[ZR2022MD118] ; Natural Science Foundation of Shandong Province[ZR2022MD025] ; Natural Science Foundation of Shandong Province[ZR2022MD050] ; QAU project[20230120]
WOS研究方向Engineering ; Environmental Sciences & Ecology
语种英语
WOS记录号WOS:001368156500001
出版者ELSEVIER
资助机构Humanities and Social Science Foundation Project of Ministry of Education ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; Natural Science Foundation of Shandong Province ; QAU project
源URL[http://ir.igsnrr.ac.cn/handle/311030/211536]  
专题生态系统网络观测与模拟院重点实验室_外文论文
通讯作者Jiao, Wei; Shi, Hongtao
作者单位1.Chinese Acad Sci, Inst Geog Sci & Nat Resources, Key Lab Ecosyst Network Observat & Modeling, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China
2.Minist Agr & Rural Affairs, Rural Energy & Environm Agcy, Beijing, Peoples R China
3.Qingdao Agr Univ, Coll Sci & Informat, Qingdao 266109, Peoples R China
4.Linyi Univ, Coll Resources & Environm, Shandong Prov Key Lab Water & Soil Conservat & Env, Linyi 276000, Peoples R China
5.Qingdao Agr Univ, Sch Resources & Environm, Qingdao 266109, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Fangli,Yu, Zihan,Zhang, Yali,et al. Source-risk and uncertainty assessment of trace metals in surface sediments of a human-dominated seaward catchment in eastern China[J]. JOURNAL OF HAZARDOUS MATERIALS,2024,480:10.
APA Wang, Fangli.,Yu, Zihan.,Zhang, Yali.,Ni, Runxiang.,Li, Zhi.,...&Shi, Hongtao.(2024).Source-risk and uncertainty assessment of trace metals in surface sediments of a human-dominated seaward catchment in eastern China.JOURNAL OF HAZARDOUS MATERIALS,480,10.
MLA Wang, Fangli,et al."Source-risk and uncertainty assessment of trace metals in surface sediments of a human-dominated seaward catchment in eastern China".JOURNAL OF HAZARDOUS MATERIALS 480(2024):10.

入库方式： OAI收割

来源：地理科学与资源研究所

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