Potentially toxic metal concentration,spatial distribution,and health risk assessment in drinking groundwater resources of southeast Iran

Hadi Eslami; Abbas Esmaeili; Mohsen Razaeian; Mahnaz Salari; Abdolreza Nassab Hosseini; Mohammad Mobini; Ali Barani

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Potentially toxic metal concentration,spatial distribution,and health risk assessment in drinking groundwater resources of southeast Iran

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In this study, the concentration and spatial distribution of potentially toxic metals(PTMs), including arsenic(As), cadmium(Cd), chromium(Cr), lead(Pb), copper(Cu), iron(Fe), manganese(Mn), and magnesium(Mg) in 23 wells and drinking groundwater distribution networks of Rafsanjan, located in southeast Iran were evaluated. Moreover, the assessment of carcinogenic and non-carcinogenic risks was estimated by Monte Carlo simulation(MCS). The results showed that the concentrations of As and Pb in more than 99% and 23.46% of the study area, respectively, were higher than the maximum concentration level(10 μg/L). The mean concentration of other metals, including Cd, Cr, Cu, Fe, Mg, and Mn in all drinking water resources was within the WHO standard level. The mean hazard quotient(HQ) for As in the age group of children was 9.246 and adults 2.972, indicating high non-carcinogenic risk of As in the study area. The lifetime cancer risk(LTCR) of As was 1.36 E-3 for adults and 1.52 E-2 for children, indicating high non-carcinogenic risk of As. The level of HQ and LTCR for Pb in both age groups was in the acceptable range. The results of sensitivity analysis showed that the most effective variables were pollutant concentration and body weight(BW), respectively. Finally, it can be concluded that exposure to PTMs, especially As through drinking water in the study area can have significant effects on people’s health living in the area;therefore, it is necessary to treat and remove As from groundwater resources before drinking or using for domestic purpose.

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《地学前缘：英文版》 |2022年第1期|127-137|共11页
作者
Hadi Eslami; Abbas Esmaeili; Mohsen Razaeian; Mahnaz Salari; Abdolreza Nassab Hosseini; Mohammad Mobini; Ali Barani;
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作者单位

Department of Environmental Health Engineering;

School of Health;

Occupational Environment Research Center;

Rafsanjan University of Medical Sciences;

Rafsanjan;

Iran;

Occupational Safety and Health Research Center;

NICICO;

World Safety Organization and Rafsanjan University of Medical Sciences;

Rafsanjan;

Iran;

Epidemiology and Biostatistics Department;

School of Health;

Occupational Environment Research Center;

Rafsanjan University of Medical Sciences;

Rafsanjan;

Iran;

Student Research Committee;

Department of Environmental Health Engineering;

School of Health;

Rafsanjan University of Medical Sciences;

Rafsanjan;

Iran;

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原文格式 PDF
正文语种 chi
中图分类水文地质学与工程地质学;
关键词
Drinking water; Groundwater; Health risk assessment; Heavy metals; Potentially toxic metals;

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Potentially toxic metal concentration,spatial distribution,and health risk assessment in drinking groundwater resources of southeast Iran

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