Does exposure to weathered coal ash with an enhanced content of uranium-series radionuclides affect flora? Changes in the physiological indicators of five referent plant species.

Autor: Skoko B; Institute for Medical Research and Occupational Health, Ksaverska cesta 2, 10000 Zagreb, Croatia. Electronic address: bskoko@irb.hr., Brkanac SR; University of Zagreb, Faculty of Science, Department of Biology, Rooseveltov trg 6, 10000 Zagreb, Croatia. Electronic address: sandra.radic.brkanac@biol.pmf.hr., Kuharić Ž; Andrija Štampar Teaching Institute of Public Health, Mirogojska 16, 10000 Zagreb, Croatia. Electronic address: zeljka.kuharic@stampar.hr., Jukić M; Andrija Štampar Teaching Institute of Public Health, Mirogojska 16, 10000 Zagreb, Croatia. Electronic address: mirela.jukic@stampar.hr., Štrok M; Jožef Stefan Institute, Jamova cesta 39, 1000 Ljubljana, Slovenia. Electronic address: marko.strok@ijs.hr., Rovan L; Jožef Stefan Institute, Jamova cesta 39, 1000 Ljubljana, Slovenia. Electronic address: leja.rovan@ijs.si., Zgorelec Ž; University of Zagreb, Faculty of Agriculture, Svetošimunska cesta 25, 10000 Zagreb, Croatia. Electronic address: zzgorelec@agr.hr., Perčin A; University of Zagreb, Faculty of Agriculture, Svetošimunska cesta 25, 10000 Zagreb, Croatia. Electronic address: apercin@agr.hr., Prlić I; Institute for Medical Research and Occupational Health, Ksaverska cesta 2, 10000 Zagreb, Croatia. Electronic address: iprlic@imi.hr.
Jazyk: angličtina
Zdroj: Journal of hazardous materials [J Hazard Mater] 2023 Jan 05; Vol. 441, pp. 129880. Date of Electronic Publication: 2022 Aug 31.
DOI: 10.1016/j.jhazmat.2022.129880
Abstrakt: Coal ash deposited in open landfills is a potential source of environmental pollutants due to the contained toxic element content. The weathered coal ash used in this study additionally contains enhanced activity concentrations of 238 U series radionuclides. This study aimed to determine the physiological effects of enhanced ionizing radiation and toxic elements on five plant species (smilo grass, sticky fleabane, blackberry, mastic and pine tree) inhabiting the coal ash disposal site. Among the potentially toxic measured elements, contents of Sb, As and especially V significantly exceeded their respective levels at the control site, as well as the content of 238 U and its progenies. Significant changes in photosynthetic pigments were recorded following chronic exposure to the plants growing on the coal ash site. Different responses were also observed in the plant species regarding the activity of catalase and glutathione-S-transferase (GST). The level of lipid peroxidation markedly increased in plants from the disposal site, except in blackberry, wherein GST activity was the strongest, indicating an important role of that enzyme in the adaptation to coal ash pollutants. The results of this study suggest that the modulation of the studied biochemical parameters in plants growing on coal ash is primarily species-dependent.
Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
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Databáze: MEDLINE
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