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Hydrogeochemistry characteristics of groundwater and health risk assessment in Yalvaç–Gelendost basin (Turkey)
Applied Water Science ( IF 5.5 ) Pub Date : 2021-04-05 , DOI: 10.1007/s13201-021-01401-9
Ayşen Davraz , Burcu Batur

In this study, hydrogeochemical processes controlling groundwater chemistry and groundwater quality were investigated. Drinking water is supplied from groundwater (mostly spring and well water) in the study area. The various parameters such as physicochemical parameters, major ions, trace elements and nitrogen derivatives of groundwater samples of were analyzed. These analysis results are compared with drinking water standards for suitability and it does not exceed the permissible limit values, except for the As and F contents of some samples. The results of major ion chemistry of groundwater in the Yalvaç–Gelendost basin suggest that the silicate weathering and ion exchange are the main controlling hydrogeochemical processes in the variation of groundwater quality. The water types are Ca–Mg–HCO3, Mg–Ca–HCO3 and Ca–HCO3 in the basin.

Non-carcinogenic health risk assessment associated with arsenic, nitrate and fluoride was assessed by oral (ingestion) and dermal pathways for adult and child. For child, hazard coefficient and hazard index values are less than 1, and a negative effect on usage as drinking water and dermal (skin contact) absorption not expected. But, potential non-carcinogenic effect with oral intake is likely to occur for some water samples for adults. In addition, carcinogenic risk of As element was evaluated for adults and child related to oral and dermal effect. The carcinogenic risk of As through oral intake may pose health risks for children. For adults, it has been determined that water ingestion with dermal exposure may cause cancer. Arsenic is the main toxic element for human health in the study area. The content of As decreases in seasonal water samples. In this case, the negative effect of arsenic intake with ingestion and dermal pathways on health decreases.



中文翻译:

雅尔瓦奇-格伦多斯特盆地(土耳其)的地下水水文地球化学特征和健康风险评估

在这项研究中,研究了控制地球化学和地下水质量的水文地球化学过程。饮用水由研究区域的地下水(主要是泉水和井水)提供。分析了地下水样品的理化参数,主要离子,微量元素和氮衍生物等各种参数。将这些分析结果与饮用水标准进行比较,确定其适用性,除某些样品中的As和F含量外,未超出允许的极限值。Yalvaç-Gelendost盆地地下水的主要离子化学结果表明,硅酸盐的风化和离子交换是控制地下水水质变化的主要水文地球化学过程。水类型为Ca–Mg–HCO 3,Mg–Ca–HCO3和Ca–HCO 3在盆地中。

通过成人和儿童的口服(摄入)和皮肤途径评估了与砷,硝酸盐和氟化物有关的非致癌健康风险评估。对于儿童,危害系数和危害指数值小于1,并且预期不会对饮用水和皮肤(皮肤接触)吸收产生负面影响。但是,对于一些成年人的水样本,口服摄入可能会产生潜在的非致癌作用。此外,评估了成人和儿童与口腔和皮肤的影响有关的砷元素的致癌风险。通过口服摄入砷致癌的风险可能对儿童构成健康风险。对于成年人,已经确定摄入水和皮肤接触可能会导致癌症。砷是研究区内人类健康的主要有毒元素。季节性水样中砷的含量降低。

更新日期:2021-04-05
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