ASSESSMENT OF SOIL POLLUTION IN AKTOBE REGION BY HEAVY METALS BASED ON GIS TECHNOLOGIES

Authors

DOI:

https://doi.org/10.26577/JGEM20257727
        249 70

Keywords:

GIS technologies, geospatial analysis, soil contamination with heavy metals, interpolation, spectrometry

Abstract

In this study, the level of soil contamination with heavy metals in the Aktobe region was studied using cartographic methods. The study analyzed the spatial distribution of chromium (Cr), nickel (Ni), arsenic (As), molybdenum (Mo), cobalt (Co), zinc (Zn), lead (Pb), copper (Cu), cadmium (Cd) and boron (B) in the soil.. Based on the data obtained on the basis of the geographic information system (GIS), information and assessment maps have been developed.

The main purpose of the study is to assess the impact of industrial enterprises in the region on soil pollution with heavy metals. For this purpose, soil samples were taken and laboratory analysis was carried out in areas close to the Don Mining and Processing Plant, mining enterprises of the Mogajar district, Aktobe Ferroalloy Plant, as well as oil and gas fields in the region. The data obtained was processed using the Inverse Distance Weighted (IDW) interpolation method.

The results of the study revealed highly concentrated areas of heavy metals in the region. It has been established that in regions where the influence of oil and gas producing and mining plants is observed, there are high concentrations of the elements lead (Pb), cadmium (Cd) and zinc (Zn). In addition, a comprehensive cartographic model has been developed that describes the patterns of spatial distribution of individual elements.

The results obtained stat.gov.kz They were compared with official statistical data, and the features of industrial pollution zones were analyzed. During the study, there was a discrepancy between the concentrations of heavy metals in areas close to production facilities and official data, which indicates the need to improve the regional monitoring system

Author Biographies

Y.Kh. Kakimzhanov, Al-Farabi Kazakh National University

PhD, Acting Associate Professor of the Department of Cartography and Geoinformatics, Al-Farabi Kazakh National University

K.T. Kyrgyzbay, Al-Farabi Kazakh National University

(the author for correspondence) - PhD, Senior Lecturer Department of the Cartography and Geoinformatics, Al-Farabi Kazakh National University

L.M. Pavlichenko, Al-Farabi Kazakh National University

Doctor of Geographical Sciences, Professor of the Department of Recreational Geography and Tourism, Faculty of Geography and Environmental Management, Al-Farabi Kazakh National University, Almaty, Kazakhstan

A.S. Beisembinova, Al-Farabi Kazakh National University

Candidate of Geographical Sciences, Professor of the Department of Recreational Geography and Tourism, Faculty of Geography and Environmental Management, Al-Farabi Kazakh National University

E.S. Sarybaev, Al-Farabi Kazakh National University

PhD, Senior Lecturer Department of the Cartography and Geoinformatics, Al-Farabi Kazakh National University

N.Y. Khamit, Al-Farabi Kazakh National University

Doctoral student of the 3rd year of the speciality 8D07301 - Geodesy, Department of Cartography and Geoinformatics,Al-Farabi Kazakh National University

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How to Cite

Kakimzhanov Е., Kyrgyzbay Қ., Pavlichenko Л., Beisembinova А., Sarybaev Е., & Khamit Н. (2025). ASSESSMENT OF SOIL POLLUTION IN AKTOBE REGION BY HEAVY METALS BASED ON GIS TECHNOLOGIES. Journal of Geography and Environmental Management, 77(2). https://doi.org/10.26577/JGEM20257727

Issue

Vol. 77 No. 2 (2025): Journal of Geography and Environmental Management

Section

Cartography and geoinformatics