Abstract

Groundwater chemistry data play an essential role to identify the water quality status and assess the exposure to human health. Therefore, in the present research, combined approaches used to assess the geochemistry, sources of ions and human health risk in the groundwater of the Tronzano Vercellese. Moreover, a geographic information system (GIS) technique was applied to identify locations have the most risk to human health. The results of the present study show that the groundwater samples had sequence of Ca²⁺>Mg²⁺>Na⁺>K⁺ in cationic, HCO₃⁻>SO₄²⁻>NO₃⁻>Cl⁻>F⁻ in anionic and Zn > Fe > Ba > Ni > Mn > Cu > Cr > As in metals abundance. The hydrogeochemical approaches indicate that the major ions chemistry was mainly controlled by the weathering of carbonate and silicate minerals, and ion-exchange reactions. Furthermore, statistical analysis reveals that the non-lithogenic origin was the primary sources of some elements (Mn, Zn, Ba, NO₃⁻ and K⁺) in the water samples. The hazard quotient (HQ) and hazard index (HI) were estimated to assess the risk to human health using the United States Environmental Protection Agency (USEPA) methods. Estimated HQ and HI values were higher for the child as compared to the adult and suggesting that the elements posed little hazard individually in the case of the child.

摘要

地下水化学数据在识别水质状况和评估人体健康暴露方面起着至关重要的作用。因此，在本研究中，结合使用了多种方法来评估Tronzano Vercellese地下水中的地球化学，离子源和人类健康风险。此外，应用了地理信息系统（GIS）技术来确定对人类健康危害最大的位置。本研究结果表明，地下水样品具有钙的序列结果²⁺ > Mg的²⁺ >的Na ⁺ >ķ ⁺阳离子，HCO ₃ ^- > SO ₄ ^{2- >} NO ₃ ^- >氯^- >˚F ^-阴离子中的Zn和> Fe> Ba> Ni> Mn> Cu> Cr> As在金属丰度中。水文地球化学方法表明，主要的离子化学主要受碳酸盐和硅酸盐矿物的风化以及离子交换反应的控制。此外，统计分析揭示了非致石起源是一些元素（锰，锌，钡，NO的主要来源₃ ^-和K ⁺）的水样英寸 使用美国环境保护署（USEPA）的方法估计了危害商（HQ）和危害指数（HI），以评估对人类健康的风险。与成人相比，儿童的HQ和HI估计值较高，这表明这些元素对儿童的危害很小。