期刊名称：Journal of Advances in Environmental Health Research
电子版ISSN：2345-3990
出版年度：2014
卷号：2
期号：1
页码：22-29
DOI：10.22102/JAEHR.2019.143089.1098
语种：English
出版社：Kurdistan University of Medical Sciences
摘要：Groundwater aquifers as one of the main sources of water supplies are faced with different risks such as level dropping due to lack of precipitation, and natural and non-natural pollutants. Thus, it is extremely necessary to monitor ground water quality. In the present study, the concentration of cations, anions, and some toxic metals was evaluated in 21 rural water supplies in Qorveh plain in two stages. Data were analyzed with Rockwork and Arc GIS software. Results from Hydro chemical analysis showed that all the studied parameters had lower concentrations than the permitted limits, except for arsenic (As) and selenium (Se) in some of water resources. As concentration in 20% of studied resources were higher than recommended standards. There was a significant difference between nitrate (NO3−) concentrations in the two low- and high-water seasons (P < 0.01). Bicarbonate (HCO3−) and calcium (Ca2+) were the prevalent anion and cation, respectively, meaning that samples type was calcium-bicarbonate. Wilcox diagram classified the samples in C2-S1 and C3-S1 classes. Correlation coefficient between chemical parameters showed that HCO3− and Ca2+ had the highest correlation. Finally, it can be said that except for As and Se, other water characteristics have a good quality for drinking water application. However, current and uncontrolled application of the studied water supplies, especially in agricultural activities, can change and decrease their quality. Therefore, it is important to prevent the health threats of such proces.
关键词：Water Quality Monitoring; Water Resource; Drinking Water; Heavy Metals; Water Quality Standard
