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

A recent study reveals significant microplastic pollution in the Zarafshan River, flowing through Samarkand and Navoi regions of Uzbekistan. The research found concentrations of 3.22±1.64 and 2.96±0.78 microplastic particles per cubic meter in the Navoi and Samarkand regions, respectively, with particle sizes ranging from 0.15 to 3.00 mm. This pollution is attributed to environmental factors but poses a serious threat due to its potential to accumulate toxic substances, which could disrupt aquatic ecosystems. The study employed advanced techniques such as hydrogen peroxide oxidation for organic matter removal, density separation, and Raman spectroscopy for polymer identification. However, the limited data on microplastic pollution in Central Asia hinders comprehensive risk assessment and mitigation strategy development. Regular monitoring and targeted measures are urgently needed to address this growing environmental concern.

Khusanov, A., Sabirov, O., Frank, Y., Vorobev, D., Vorobev, E., Rakhmatullina, S., Tashbaev, S., Mamatkarimova, S., Yakhyoyev, A., Juraev, M., Isakov, I., Karimjonov, D., Zokirov, I., & Abdullaev, I. (2025). Microplastic pollution of the Zrafshan river tributary in Samarkand and Navoi regions of the Republic of Uzbekistan. Green Analytical Chemistry, 12, 100200. https://doi.org/10.1016/j.greeac.2024.100200