Transmission of Heavy Metals in River Water and Self-Purification Capacity of Ile River
Source abstract
Abstract
The continuing anthropogenic pollution of the Ile River occurs both by transboundary runoff and as a result of discharges of industrial, agricultural, and domestic wastewater on the territory of Kazakhstan. With this amount of pollution, the river’s capacity for self-purification is very limited, and in some cases practically exhausted. Hydrochemical and toxic indicators in the Ile River basin were analyzed based on water sampling from the Chinese–Kazakh border station to 37 km downstream of the hydroelectric power plants (HPPs). Heavy metals were determined by flame AAS methods. The self-purification capacity (SPC) was determined for cadmium by 28–81%, copper 15–66%, zinc 22–37%, and cobalt 5–9% while the nickel self-purification of water did not occur. The SPC was influenced by the Kapshagai reservoir. The identified main regularities of the anthropogenic transformation of water quality and self-purification capacity of the river will help both in solving the problems of river pollution and in the development of necessary measures aimed at the protection of water resources from pollution and depletion.
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Research context
OpenAlex topics: Water Quality and Pollution Assessment
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Laboratory of “Hydrochemistry and Environmental Toxicology”, JSC «Institute of Geography and Water Security», Almaty 050010, Kazakhstan
Faculty of Geography, Philipps-Universität Marburg, D-35032 Marburg, Germany
Department of Meteorology and Hydrology, Al-Farabi Kazakh National University, Almaty 050010, Kazakhstan
Water, Land and Forest Resources Faculty, Department Water Resources and Reclamation, Kazakh National Agrarian Research University, Almaty 050010, Kazakhstan
Funding
Committee of Science of the Ministry of Science and Higher Education of the Republic of Kazakhstan
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