Characterization of heavy-metal-contaminated sediment by using unsupervised multivariate techniques and health risk assessment

NCU Institutional Repository > 工學院 > 土木工程學系 > 期刊論文 > Item 987654321/100254

請使用永久網址來引用或連結此文件: https://ir.lib.ncu.edu.tw/handle/987654321/100254

題名:	Characterization of heavy-metal-contaminated sediment by using unsupervised multivariate techniques and health risk assessment
作者:	王聖瑋;Wang, Yeuh-Bin;Liu, Chen-Wuing;Wang, Sheng-Wei
貢獻者:	工學院土木工程學系
關鍵詞:	Contamination;data collection;dry season;Electroplating;Environmental Monitoring - methods;Environmental Pollution - adverse effects;factor analysis;Factor Analysis, Statistical;Geologic Sediments - analysis;Health;Health risk assessment;Humans;industry;Ingestion;Metals, Heavy - analysis;multivariate analysis;Positive matrix factorization (PMF);Risk;Risk Assessment;Rivers;sediment contamination;Sediment quality management;Sediments;Self-organizing map (SOM);Taiwan;Tributaries;variance;Water Pollutants, Chemical - analysis
日期:	2015-03-01
上傳時間:	2026-04-21 13:55:22 (UTC+8)
出版者:	Academic Press Inc.;Netherlands: Elsevier Inc
摘要:	摘要： This study characterized the sediment quality of the severely contaminated Erjen River in Taiwan by using multivariate analysis methods—including factor analysis (FA), self-organizing maps (SOMs), and positive matrix factorization (PMF)—and health risk assessment. The SOMs classified the dataset with similar heavy-metal-contaminated sediment into five groups. FA extracted three major factors—traditional electroplating and metal-surface processing factor, nontraditional heavy-metal-industry factor, and natural geological factor—which accounted for 80.8% of the variance. The SOMs and FA revealed the heavy-metal-contaminated-sediment hotspots in the middle and upper reaches of the major tributary in the dry season. The hazardous index value for health risk via ingestion was 0.302. PMF further qualified the source apportionment, indicating that traditional electroplating and metal-surface-processing industries comprised 47% of the health risk posed by heavy-metal-contaminated sediment. Contaminants discharged from traditional electroplating and metal-surface-processing industries in the middle and upper reaches of the major tributary must be eliminated first to improve the sediment quality in Erjen River. The proposed assessment framework for heavy-metal-contaminated sediment can be applied to contaminated-sediment river sites in other regions. •Sediment quality was assessed by FA, SOM, PMF, and health risk assessment.•The contaminated hotspots were identified by using FA and SOM.•PMF estimated that the electroplating and metal-surface-processing industries comprised the major health risk. 其他題名： Ecotoxicol Environ Saf 出版者： Netherlands: Elsevier Inc 出版日期： 2015-03 出處： Ecotoxicology and Environmental Safety, 2015-03, Vol.113, p.469-476 版權： 2014 Elsevier Inc. 版權： Copyright © 2014 Elsevier Inc. All rights reserved. 識別號： ISSN: 0147-6513 識別號： ISSN: 1090-2414 識別號： EISSN: 1090-2414 識別號： DOI: 10.1016/j.ecoenv.2014.12.036 識別號： PMID: 25568938
顯示於類別:	[土木工程學系 ] 期刊論文

文件中的檔案:

檔案	描述	大小	格式	瀏覽次數
index.html		0Kb	HTML	14	檢視/開啟

在NCUIR中所有的資料項目都受到原著作權保護.

社群 sharing

資料載入中.....