Мақола

Assessment of urban ecological conditions using heavy metal accumulation in the leaves of Paulownia and Acer

V ErmatovaDepartment of Physical Geography and Geography of Kyrgyzstan, Osh State University, Osh 723 500, KyrgyzstanZ AkilbuDepartment of Physical Geography and Geography of Kyrgyzstan, Osh State University, Osh 723 500, KyrgyzstanA AkkulovDepartment of Physical Geography and Geography of Kyrgyzstan, Osh State University, Osh 723 500, KyrgyzstanB ShamshiyevDepartment of Physical Geography and Geography of Kyrgyzstan, Osh State University, Osh 723 500, KyrgyzstanA IsmailovDepartment of Physical Geography and Geography of Kyrgyzstan, Osh State University, Osh 723 500, KyrgyzstanS TashbaltaevaDepartment of Physical Geography and Geography of Kyrgyzstan, Osh State University, Osh 723 500, KyrgyzstanKhislat KhaydarovDepartment of Botany, Samarkand State University, Samarkand 140 104, UzbekistanShukrullozoda Roza Shukrullo QiziDepartment of Biotechnology, Samarkand State University, Samarkand 140 104, UzbekistanTurabekov ShakhzodDepartment of Fundamental Medical Sciences, Kimyo International University, Samarkand 140 100, UzbekistanIlkhom Islomovich SultonovDepartment of Internal Medicine No. 1 named after N.A. Abdullayev, Samarkand State Medical University, Samarkand 140 321, UzbekistanShohira AtaevaDepartment of Plant Physiology and Microbiology, Samarkand State University, Samarkand 140 104, Uzbekistan

Plant Science Todayjournal2026en

ABI

Аннотация

Amid intensified urbanization and industrial expansion, heavy metal (HM) contamination has become a critical challenge for urban ecosystems. Toxic elements such as lead (Pb), cadmium (Cd), iron (Fe), copper (Cu), arsenic (As) and chromium (Cr) threaten both public health and environmental stability. This study evaluates the bioaccumulation capacity of two widespread urban tree species-Paulownia and Acer-within different districts of Osh city. Leaf samples were collected across multiple seasons and HM concentrations were quantified using inductively coupled plasma optical emission spectrometry (ICP-OES). The findings demonstrate pronounced spatial and seasonal variability, with the highest metal levels recorded in districts under strong anthropogenic pressure. Paulownia consistently accumulated more Fe and Cu than Acer, particularly during autumn, when atmospheric deposition intensifies. These results highlight the suitability of Paulownia not only as an effective bioindicator but also as a promising species for phytoremediation. These findings demonstrate the strong influence of urban structure, seasonality and species-specific traits on patterns of metal accumulation. Overall, the results highlight the value of Paulownia as a sensitive bioindicator and a promising species for phytoremediation, providing practical insight for urban ecosystem health assessment and evidence-based planning of sustainable green infrastructure in rapidly developing cities.

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Мавзулар

Plant Stress Responses and Tolerance Heavy metals in environment Plant responses to elevated CO2

Идентификаторлар

DOI: 10.14719/pst.12903

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