This study was performed to explore the contents and stability of heavy metals and metalloids in Tajan River water. Water chemistry software (HSC model) was applied to obtain Eh–pH diagrams. The correlation between various parameters and cluster analysis were carried out by the MVSP software. According to the results, the contents of heavy metals were relatively low and in the prescribed limits of surface water standards. pH was slightly alkaline, and redox values ranged from 142 to 201 mV. Cobalt, Cr, Ni, Cu, Zn, Pb, Fe and Th had similar behaviors, and Eh played an effective role in controlling them. Barium and As were governed by salinity. The studied elements are present in the forms of oxide, hydroxide and as free ions.

中文翻译：

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伊朗北部塔扬河水中的重金属和准金属的形态和稳定性

本研究旨在探讨塔扬河水中重金属和准金属的含量及其稳定性。使用水化学软件（HSC模型）获得Eh-pH图。各种参数与聚类分析之间的相关性通过MVSP软件进行。根据结果​​，重金属的含量相对较低，并在规定的地表水标准范围内。pH值为弱碱性，氧化还原值范围为142至201 mV。钴，铬，镍，铜，锌，铅，铁和Th具有相似的行为，而Eh在控制它们方面起着有效的作用。钡和砷受盐度控制。被研究的元素以氧化物，氢氧化物和自由离子的形式存在。