College of Environment and Resources, Fuzhou University, Fuzhou, China.
Key Laboratory of Spatial Data Mining and Information Sharing, Ministry of Education of China, Fuzhou, China.
Integr Environ Assess Manag. 2020 May;16(3):342-352. doi: 10.1002/ieam.4230. Epub 2020 Jan 29.
Metal contaminants in drinking water pose a potential threat to human health. Metal elements (Fe, Mn, Cu, Cr, Cd, As, and Pb) in Shanzi Reservoir, China, a drinking water source for nearby cities, were measured in 2013 and 2014. The distribution characteristics of metal elements in water were identified and a health risk assessment model was used to evaluate potential harm. Principal component analysis and cluster analysis were used to determine the main sources of metal pollutants. The results showed that Pb and As exceeded the standard at some sampling sites, whereas other metal elements met the drinking water standards. The spatial distribution of metal elements was extremely uneven and might be affected by either the geochemical environment or human activities in the study region. The total risk value of metals (5 × 10 a ) was below the recommended value of the United States Environmental Protection Agency (USEPA), the total cancer risk was higher than the total noncancer risk, and both risks were higher for children than for adults. Arsenic was the priority control pollutant, and the priority control site was located upstream of the reservoir. Source analysis showed that Fe, Mn, and Cu were mainly from soil formation and stone mining and processing industries; Pb and As were mainly from agricultural activities, free dumping and burning of domestic garbage, and atmospheric deposition from transportation emissions; Cd was mainly from agricultural application of fertilizers and pesticides; and Cr was from the stone mining and processing industry and from the electroplating and metal manufacturing industries. Integr Environ Assess Manag 2020;16:342-352. © 2019 SETAC.
饮用水中的金属污染物对人类健康构成潜在威胁。中国山水库（附近城市的饮用水源）中的金属元素（Fe、Mn、Cu、Cr、Cd、As 和 Pb）在 2013 年和 2014 年进行了测量。确定了金属元素在水中的分布特征，并使用健康风险评估模型评估潜在危害。主成分分析和聚类分析用于确定金属污染物的主要来源。结果表明，在一些采样点 Pb 和 As 超标，而其他金属元素符合饮用水标准。金属元素的空间分布极不均匀，可能受到研究区域地球化学环境或人类活动的影响。金属的总风险值（5×10 -6 a ）低于美国环境保护署（USEPA）的建议值，总癌症风险高于总非癌症风险，儿童的风险高于成人。砷是优先控制的污染物，优先控制的地点位于水库的上游。来源分析表明，Fe、Mn 和 Cu 主要来自土壤形成和石材开采加工业；Pb 和 As 主要来自农业活动、生活垃圾的自由倾倒和焚烧以及交通运输排放的大气沉降；Cd 主要来自农业化肥和农药的应用；Cr 主要来自石材开采加工业以及电镀和金属制造业。综合环境评估与管理 2020；16:342-352。©2019 SETAC。
