Microplastic pollution of the Zrafshan river tributary in Samarkand and Navoi regions of the Republic of Uzbekistan

This study analyzes microplastic pollution of surface waters of the Zarafshan River flowing through the Samarkand and Navoi regions of Uzbekistan. Microplastics pose a serious threat to aquatic ecosystems due to their ubiquity and ability to accumulate toxic substances. In the Central Asian context,...

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Main Authors: Alijon Khusanov, Ozodbek Sabirov, Yulia Frank, Danil Vorobev, Egor Vorobev, Svetlana Rakhmatullina, Sherzodbek Tashbaev, Sarvinoz Mamatkarimova, Abdumukhtar Yakhyoyev, Mukhammadyusuf Juraev, Ilyas Isakov, Dilyor Karimjonov, Islomjon Zokirov, Ikrom Abdullaev
Format: Article
Language:English
Published: Elsevier 2025-03-01
Series:Green Analytical Chemistry
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Online Access:http://www.sciencedirect.com/science/article/pii/S2772577424001095
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author Alijon Khusanov
Ozodbek Sabirov
Yulia Frank
Danil Vorobev
Egor Vorobev
Svetlana Rakhmatullina
Sherzodbek Tashbaev
Sarvinoz Mamatkarimova
Abdumukhtar Yakhyoyev
Mukhammadyusuf Juraev
Ilyas Isakov
Dilyor Karimjonov
Islomjon Zokirov
Ikrom Abdullaev
author_facet Alijon Khusanov
Ozodbek Sabirov
Yulia Frank
Danil Vorobev
Egor Vorobev
Svetlana Rakhmatullina
Sherzodbek Tashbaev
Sarvinoz Mamatkarimova
Abdumukhtar Yakhyoyev
Mukhammadyusuf Juraev
Ilyas Isakov
Dilyor Karimjonov
Islomjon Zokirov
Ikrom Abdullaev
author_sort Alijon Khusanov
collection DOAJ
description This study analyzes microplastic pollution of surface waters of the Zarafshan River flowing through the Samarkand and Navoi regions of Uzbekistan. Microplastics pose a serious threat to aquatic ecosystems due to their ubiquity and ability to accumulate toxic substances. In the Central Asian context, the problem of microplastics remains poorly understood, complicating the development of mitigation strategies. The study was conducted in July 2023. Surface water samples were collected using a microsampler equipped with a 330μm mesh. Laboratory processing included oxidation of organic matter with hydrogen peroxide and separation of plastic particles by density separation. Raman spectroscopy was used to identify the polymer composition. According to the results, the concentration of MP particles was 3.22±1.64 units/m3 in the corresponding part of the Zarafshan River in the Navoi region and 2.96±0.78 units/m3 in the Samarkand region. The particles found in the water have a diameter of 0.15 to 3.00 mm. According to the results of the data analysis, a part of the Zarafshan River flowing through the territory of Samarkand and Navoi regions is polluted with plastic particles due to environmental factors. Existing data on microplastic pollution of freshwater ecosystems in Central Asia are fragmentary, which makes it difficult to assess environmental risks and take appropriate measures. The aim of this paper is to assess the level of microplastic pollution in the Zarafshan River and identify the main sources of pollution. The results of the study highlight the need for regular monitoring and the development of effective measures to reduce the level of microplastic pollution in the region.
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publishDate 2025-03-01
publisher Elsevier
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spelling doaj-art-0811a503e1bd409ebdbf34b5383105072025-08-20T02:40:24ZengElsevierGreen Analytical Chemistry2772-57742025-03-011210020010.1016/j.greeac.2024.100200Microplastic pollution of the Zrafshan river tributary in Samarkand and Navoi regions of the Republic of UzbekistanAlijon Khusanov0Ozodbek Sabirov1Yulia Frank2Danil Vorobev3Egor Vorobev4Svetlana Rakhmatullina5Sherzodbek Tashbaev6Sarvinoz Mamatkarimova7Abdumukhtar Yakhyoyev8Mukhammadyusuf Juraev9Ilyas Isakov10Dilyor Karimjonov11Islomjon Zokirov12Ikrom Abdullaev13Andijan State University, Andijan, UzbekistanAndijan State University, Andijan, UzbekistanTomsk State University, Tomsk, RussiaTomsk State University, Tomsk, RussiaTomsk State University, Tomsk, RussiaTomsk State University, Tomsk, RussiaAndijan State University, Andijan, UzbekistanAndijan State University, Andijan, UzbekistanAndijan State University, Andijan, Uzbekistan; Corresponding author.Andijan State University, Andijan, UzbekistanAndijan State University, Andijan, UzbekistanAndijan Institute of Mechanical Engineering, Andijan, UzbekistanFergana State University, Fergana, UzbekistanKhorezm Academy Mamun, Khiva, UzbekistanThis study analyzes microplastic pollution of surface waters of the Zarafshan River flowing through the Samarkand and Navoi regions of Uzbekistan. Microplastics pose a serious threat to aquatic ecosystems due to their ubiquity and ability to accumulate toxic substances. In the Central Asian context, the problem of microplastics remains poorly understood, complicating the development of mitigation strategies. The study was conducted in July 2023. Surface water samples were collected using a microsampler equipped with a 330μm mesh. Laboratory processing included oxidation of organic matter with hydrogen peroxide and separation of plastic particles by density separation. Raman spectroscopy was used to identify the polymer composition. According to the results, the concentration of MP particles was 3.22±1.64 units/m3 in the corresponding part of the Zarafshan River in the Navoi region and 2.96±0.78 units/m3 in the Samarkand region. The particles found in the water have a diameter of 0.15 to 3.00 mm. According to the results of the data analysis, a part of the Zarafshan River flowing through the territory of Samarkand and Navoi regions is polluted with plastic particles due to environmental factors. Existing data on microplastic pollution of freshwater ecosystems in Central Asia are fragmentary, which makes it difficult to assess environmental risks and take appropriate measures. The aim of this paper is to assess the level of microplastic pollution in the Zarafshan River and identify the main sources of pollution. The results of the study highlight the need for regular monitoring and the development of effective measures to reduce the level of microplastic pollution in the region.http://www.sciencedirect.com/science/article/pii/S2772577424001095Zarafshan riverPlastic wasteSurface waterMicroplasticsWater basins
spellingShingle Alijon Khusanov
Ozodbek Sabirov
Yulia Frank
Danil Vorobev
Egor Vorobev
Svetlana Rakhmatullina
Sherzodbek Tashbaev
Sarvinoz Mamatkarimova
Abdumukhtar Yakhyoyev
Mukhammadyusuf Juraev
Ilyas Isakov
Dilyor Karimjonov
Islomjon Zokirov
Ikrom Abdullaev
Microplastic pollution of the Zrafshan river tributary in Samarkand and Navoi regions of the Republic of Uzbekistan
Green Analytical Chemistry
Zarafshan river
Plastic waste
Surface water
Microplastics
Water basins
title Microplastic pollution of the Zrafshan river tributary in Samarkand and Navoi regions of the Republic of Uzbekistan
title_full Microplastic pollution of the Zrafshan river tributary in Samarkand and Navoi regions of the Republic of Uzbekistan
title_fullStr Microplastic pollution of the Zrafshan river tributary in Samarkand and Navoi regions of the Republic of Uzbekistan
title_full_unstemmed Microplastic pollution of the Zrafshan river tributary in Samarkand and Navoi regions of the Republic of Uzbekistan
title_short Microplastic pollution of the Zrafshan river tributary in Samarkand and Navoi regions of the Republic of Uzbekistan
title_sort microplastic pollution of the zrafshan river tributary in samarkand and navoi regions of the republic of uzbekistan
topic Zarafshan river
Plastic waste
Surface water
Microplastics
Water basins
url http://www.sciencedirect.com/science/article/pii/S2772577424001095
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