Environmental Assessment of Surface Water Quality in the Umanka River Basin

IF 0.5 4区化学 Q4 CHEMISTRY, ANALYTICAL

Journal of Water Chemistry and Technology Pub Date : 2023-09-21 DOI:10.3103/S1063455X23050132

Y. A. Zalenska, V. A. Kopilevych

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引用次数: 0

Abstract—

The intense pollution due to increased anthropogenic load on the water catchment areas is a problem of small rivers. Changes in the hydrochemical regime of small rivers have an impact on large rivers as well, since the former feed the latter with transfer of pollutants from the land. Agricultural and communal water pollution of small rivers can be the cause of degradation of the river system. Therefore, systematic monitoring and comprehensive evaluation of the water quality of small rivers against the background of climatic changes and low water is an urgent problem for the water management of Ukraine. This study is aimed at assessing the ecological state of the Umanka River (the left tributary of the Yatran’ River) in a certain period of time, which makes it possible to follow changes in water quality under the influence of anthropogenic factors and natural and climatic conditions of low water. Based on the results of analytical measurements of water samples of the Umanka River bed, the following block indices of water quality are calculated: index I₁ of contamination by the components of the saline composition (the sum of the Cl^– and \({\text{SO}}_{4}^{{2 - }}\) ions); ecological and sanitary index I₂ (\({\text{NH}}_{4}^{ + }\), \({\text{NO}}_{2}^{ - }\), \({\text{NO}}_{3}^{ - }\), PO, and pH); and index I₃ of specific indicators of toxic action (Fe_tot, Cd, Pb, Cu, and Zn). According to hydrochemical parameters, the Umanka River water—which is a potential source of drinking water supply—is contaminated with nitrogen compounds \({\text{NH}}_{4}^{ + }\), \({\text{NO}}_{2}^{ - }\), and \({\text{NO}}_{3}^{ - }\), and with Cd and Pb, and has a high level of permanganate oxidation exceeding the fourth class level of surface water quality. A comprehensive ecological assessment of the river water with values ranging from 3.51 to 4.36 along the stream is carried out, and the water quality is characterized as transitioning from “good” and “fairly pure” to “satisfactory” and “slightly polluted” with a tendency to approach “mediocre” and “moderately polluted”, while the Umanka River water in 2004 was classified as “good” and “fairly pure”.

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乌曼卡河流域地表水环境质量评价

摘要——由于集水区的人为负荷增加而造成的严重污染是小型河流的问题。小型河流水化学状况的变化也会对大型河流产生影响，因为前者通过陆地污染物的转移为后者提供水源。小型河流的农业和公共水污染可能是河流系统退化的原因。因此，在气候变化和枯水的背景下，对小型河流的水质进行系统监测和综合评价是乌克兰水资源管理的一个紧迫问题。本研究旨在评估乌曼卡河（Yatran河的左支流）在一定时期内的生态状况，从而有可能跟踪在人为因素和枯水自然气候条件影响下的水质变化。根据乌曼卡河河床水样的分析测量结果，计算出以下水质块指数：盐水成分污染指数I1（Cl–和\（｛\text｛SO｝｝_｛4｝^｛｛2-｝）离子之和）；生态卫生指数I2（\（｛\text｛NH｝｝_｛4｝^｛+｝\）、\（｛｛\text｛NO｝_｝2｝^｝-｝\；以及毒性作用的特定指标（Fetot、Cd、Pb、Cu和Zn）的指数I3。根据水化学参数，乌曼卡河水是一个潜在的饮用水供应源，受到氮化合物\（｛\text｛NH｝_｛4｝^｛+｝\）、（｛\text｛NO｝｝_｛2｝^｝-｝）和（｛\ text｛NO}_｛3｝^-｝\。对沿线3.51~4.36的河水进行了综合生态评价，水质呈现由“良好”、“相当纯净”向“满意”、“轻度污染”过渡的特征，并趋于“中等”、“中度污染”，而2004年的乌曼卡河水被归类为“良好”和“相当纯净”。

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来源期刊

Journal of Water Chemistry and Technology CHEMISTRY, APPLIED-CHEMISTRY, ANALYTICAL

自引率

0.00%

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审稿时长

>12 weeks

期刊介绍： Journal of Water Chemistry and Technology focuses on water and wastewater treatment, water pollution monitoring, water purification, and similar topics. The journal publishes original scientific theoretical and experimental articles in the following sections: new developments in the science of water; theoretical principles of water treatment and technology; physical chemistry of water treatment processes; analytical water chemistry; analysis of natural and waste waters; water treatment technology and demineralization of water; biological methods of water treatment; and also solicited critical reviews summarizing the latest findings. The journal welcomes manuscripts from all countries in the English or Ukrainian language. All manuscripts are peer-reviewed.