Journal of Water Chemistry and Technology ( IF 0.6 ) Pub Date : 2022-03-18 , DOI: 10.3103/s1063455x22010064 I. Sh. Normatov , V. V. Goncharuk , A. I. Normatov , B. H. Abdurahimov
Abstract
Agriculture still predominates in the use of water resources in Central Asia. About 90% of the water resources generated in the region are used for irrigation. The quality of irrigation water is an important element in obtaining ecological and safe varieties of crops because, according to the data of IAEA, the transfer of radionuclides to the human body is carried out along a water–soil–plant–human body chain. Although such a chain explains the movement of radionuclides, it will also probably be implemented when pollutants enter the human body. The aim of this work is to determine the origin of the chemical composition of the Shakhdara River and its contribution to the enrichment of the main river Panj with chemical elements. Water sampling from the rivers Shakhdara and Panj is carried out in accordance with the guidelines of Sanitary Regulation “Sanitary and Epidemiological Requirements for Water Sources, Water Abstraction Points for Economic and Potable Purposes, Economic and Potable Water Supply, Places of Recreational Water Uses and Safety of Waterbodies,” The elemental analysis is performed in the United States at the Laboratory of Ambient Environment and Geology of the Department of Geological Sciences of the University of Colorado (Boulder) as well as at the Laboratory of Moisture Chemistry of the Institute of Arctic and Alpine Studies. It is found upon comparing the results of chemical analyses with the criteria of various types of weathering (carbonate, silicate, evaporation of evaporites) that the formation of the chemical composition of the Shakhdara River occurs as a result of weathering of silicate rocks with the active participation of H2CO3 and H2SO4. It is established that the Shakhdara River makes a significant contribution to the enrichment of the Panj River with 3d (Fe, Co, Ni) elements as well as arsenic, vanadium, and scandium in addition to the alkaline (K, Na) and alkaline earth (Mg, Sr) elements.
中文翻译:
关于中亚高山河流化学成分的形成机制:Shakhdara河及其对跨界Panj河水化学的贡献
摘要
在中亚,农业在水资源利用方面仍占主导地位。该地区产生的约 90% 的水资源用于灌溉。灌溉水的质量是获得生态和安全作物品种的重要因素,因为根据国际原子能机构的数据,放射性核素向人体的转移是沿着水-土壤-植物-人体链进行的。虽然这样的链条解释了放射性核素的运动,但它也可能会在污染物进入人体时实施。这项工作的目的是确定 Shakhdara 河化学成分的起源及其对 Panj 主要河流化学元素富集的贡献。Shakhdara 河和 Panj 河的水采样是按照卫生条例“水源、经济和饮用水取水点、经济和饮用水供应、娱乐用水场所和安全的卫生和流行病学要求”的指导方针进行的水体”,元素分析在美国科罗拉多大学(博尔德)地质科学系的环境和地质实验室以及北极和北极研究所的水分化学实验室进行。高山研究。它是在将化学分析结果与各种风化标准(碳酸盐、硅酸盐、2 CO 3和H 2 SO 4。已经确定,除了碱性(K、Na)和碱性元素之外,Shakhdara 河对 Panj 河的 3 d(Fe、Co、Ni)元素以及砷、钒和钪的富集做出了重大贡献地球(Mg,Sr)元素。