The application of geographical information system (GIS) approach for assessment of groundwater quality of Zahedan city, Sistan and Baluchestan Province, Iran

IF 4.9 Q2 ENGINEERING, ENVIRONMENTAL

Groundwater for Sustainable Development Pub Date : 2021-02-01 DOI:10.1016/j.gsd.2020.100509

Shahnaz Sargazi , Mahdi Mokhtari , Mohammad Hassan Ehrampoush , Seyed Ali Almodaresi (Associate Professor) , Hossein Sargazi , Masome Sarhadi

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引用次数: 7

Abstract

The chemical analysis of groundwater samples in 29 well in the Zahedan, Sistan and Baluchestan Province, southeast of Iran was evaluated to determine the hydro-chemical processes and assessment of groundwater quality. In present study the Geographic Information System (GIS) approach was used for Groundwater Quality Index(GQI). The value of this index was reported to be in the average range 48.21% that due to the high amounts of electrical conductivity (EC), total dissolved solids (TDS), total hardness (TH), sulfate ( $S O_{4}^{2 -})$ , chloride (Cl⁻) and sodium (Na⁺)in the water resources. The Gibbs diagram indicated that groundwater chemistry in this area has obtained mainly from evaporation dominance. Assessment of hydrochemical characteristics using Piper trilinear diagram indicates Na–Cl as the predominant hydrochemical facies. Estimates show that water quality in the area has declined. The reasons for the decline in groundwater quality include the lack of rainfall, incomplete feeding of the aquifer and geology of the surrounding area. Finally, solutions were proposed to maintain and improve groundwater quality in the region.

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地理信息系统(GIS)方法在伊朗锡斯坦和俾路支斯坦省扎黑丹市地下水水质评价中的应用

对伊朗东南部扎黑丹、锡斯坦和俾路支斯坦省29口井的地下水样品进行了化学分析，确定了水化学过程并对地下水质量进行了评价。本文采用地理信息系统(GIS)方法对地下水水质指数进行了研究。由于水资源中电导率(EC)、总溶解固形物(TDS)、总硬度(TH)、硫酸盐(SO42−)、氯化物(Cl−)和钠(Na+)含量较高，该指标的平均值为48.21%。吉布斯图表明该区地下水化学以蒸发为主。用Piper三线性图评价水化学特征表明Na-Cl为主要的水化学相。据估计，该地区的水质已经下降。地下水水质下降的原因包括降雨不足、含水层补水不全和周边地区的地质情况。最后，提出了维持和改善该地区地下水质量的解决方案。

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来源期刊

Groundwater for Sustainable Development Social Sciences-Geography, Planning and Development

CiteScore

11.50

自引率

10.20%

发文量

152

期刊介绍： Groundwater for Sustainable Development is directed to different stakeholders and professionals, including government and non-governmental organizations, international funding agencies, universities, public water institutions, public health and other public/private sector professionals, and other relevant institutions. It is aimed at professionals, academics and students in the fields of disciplines such as: groundwater and its connection to surface hydrology and environment, soil sciences, engineering, ecology, microbiology, atmospheric sciences, analytical chemistry, hydro-engineering, water technology, environmental ethics, economics, public health, policy, as well as social sciences, legal disciplines, or any other area connected with water issues. The objectives of this journal are to facilitate: • The improvement of effective and sustainable management of water resources across the globe. • The improvement of human access to groundwater resources in adequate quantity and good quality. • The meeting of the increasing demand for drinking and irrigation water needed for food security to contribute to a social and economically sound human development. • The creation of a global inter- and multidisciplinary platform and forum to improve our understanding of groundwater resources and to advocate their effective and sustainable management and protection against contamination. • Interdisciplinary information exchange and to stimulate scientific research in the fields of groundwater related sciences and social and health sciences required to achieve the United Nations Millennium Development Goals for sustainable development.