教師資料查詢 | 類別: 期刊論文 | 教師: 王聖瑋WANG, SHENG-WEI (瀏覽個人網頁)

標題:A Machine Learning Approach for Spatial Mapping of the Health Risk Associated with Arsenic-Contaminated Groundwater in Taiwan’s Lanyang Plain
學年110
學期1
出版(發表)日期2021/10/29
作品名稱A Machine Learning Approach for Spatial Mapping of the Health Risk Associated with Arsenic-Contaminated Groundwater in Taiwan’s Lanyang Plain
作品名稱(其他語言)
著者Liang, C.-P.; C.-C. Sun; H. Suk; S.-W. Wang; J.-S. Chen
單位
出版者
著錄名稱、卷期、頁數International Journal of Environmental Research and Public Health 18(21), 11385
摘要Groundwater resources are abundant and widely used in Taiwan’s Lanyang Plain. However, in some places the groundwater arsenic (As) concentrations far exceed the World Health Organization’s standards for drinking water quality. Measurements of the As concentrations in groundwater show considerable spatial variability, which means that the associated risk to human health would also vary from region to region. This study aims to adapt a back-propagation neural network (BPNN) method to carry out more reliable spatial mapping of the As concentrations in the groundwater for comparison with the geostatistical ordinary kriging (OK) method results. Cross validation is performed to evaluate the prediction performance by dividing the As monitoring data into three sets. The cross-validation results show that the average determination coefficients (R2) for the As concentrations obtained with BPNN and OK are 0.55 and 0.49, whereas the average root mean square errors (RMSE) are 0.49 and 0.54, respectively. Given the better prediction performance of the BPNN, it is recommended as a more reliable tool for the spatial mapping of the groundwater As concentration. Subsequently, the As concentrations estimated obtained using the BPNN are applied to develop a spatial map illustrating the risk to human health associated with the ingestion of As-containing groundwater based on the noncarcinogenic hazard quotient (HQ) and carcinogenic target risk (TR) standards established by the U.S. Environmental Protection Agency. Such maps can be used to demarcate the areas where residents are at higher risk due to the ingestion of As-containing groundwater, and prioritize the areas where more intensive monitoring of groundwater quality is required. The spatial mapping of As concentrations from the BPNN was also used to demarcate the regions where the groundwater is suitable for farmland and fishponds based on the water quality standards for As for irrigation and aquaculture.
關鍵字back-propagation neural network;ordinary kriging;groundwater arsenic contamination;hazard quotient;target risk
語言英文(美國)
ISSN1660-4601
期刊性質國外
收錄於SCI;Scopus;
產學合作
通訊作者
審稿制度
國別瑞士
公開徵稿
出版型式,電子版,紙本
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