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Scientific Object Identifier: http://s-o-i.org/1.1/TAS-04-120-61
DOI: https://dx.doi.org/10.15863/TAS.2023.04.120.61
Language: English
Citation: Myrzatay, T. K., & Sultanov, M. K. (2023). Assessment of the ecological state of the Nura river depending on technogenic impact of Temirtau. ISJ Theoretical & Applied Science, 04 (120), 331-337. Soi: http://s-o-i.org/1.1/TAS-04-120-61 Doi: https://dx.doi.org/10.15863/TAS.2023.04.120.61 |
Pages: 331-337
Published: 30.04.2023
Abstract: Hydrochemical indicators were analyzed on the Nura River section from 2009 to 2018. The relevance of the study was determined by the important recreational, economic and environmental significance of the Nura River. The watercourse crosses areas of intense technogenic impact from the industrial complex of the city of Temirtau, where 6 sampling points were selected for analysis. We studied the change in river pollution as the selected enterprises crossed, and the dynamics of pollution over the years was observed. It was found that in the Nura River there is an excess of the MPC for copper and oil products that are not associated with emissions from the Temirtau industrial complex. But enterprises pollute the river with mercury, zinc, sulfates, nitrite nitrogen. The Nura River maintains a relatively normal dissolved oxygen content in the water, but 1 km higher than the combined wastewater discharge of Arcelor Mittal Temirtau JSC and CMF TEMK LLP there is a sharp decrease in BOD3. (translated article [13])
Key words: monitoring, Nura river, Temirtau, hydrochemistry, pollutants, technogenic impact, nitrite nitrogen, mercury, pollution dynamics, maximum permissible concentration.
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