Abstract
In the context of accelerating urbanization, industrial development, and climate change, accurate and cost-effective methods for monitoring air pollution are increasingly needed. Among biological tools, cryptogams—particularly mosses—have attracted considerable attention due to their physiological traits and wide distribution. Seeking effective indicator species, this study evaluates the bioindication potential of five common pleurocarpous mosses (Plagiomnium affine, Climacium dendroides, Hypnum cupressiforme, Pseudoscleropodium purum, and Thuidium tamariscinum) for monitoring air pollution using moss bags and a rapid, non-invasive method of magnetic susceptibility measurements. We focused on traffic-related heavy metals, including zinc (Zn), lead (Pb), cadmium (Cd), manganese (Mn), copper (Cu), chromium (Cr), nickel (Ni), and iron (Fe), quantified by Inductively Coupled Plasma Optical Emission Spectrometry. The results revealed clear interspecific differences in pollutant accumulation, with Plagiomnium affine and Climacium dendroides performing best, likely due to favorable morphological and physiological traits such as high specific leaf area and open leaf architecture. All tested species are widespread and easily accessible, enabling efficient biomass collection for field applications. By linking functional traits with pollutant retention capacity, this study provides evidence-based recommendations for species selection in routine biomonitoring protocols across temperate habitats.
Data availability
The data supporting the findings of this study are available from the corresponding author, Dr. Łuczak (kluczak@uni.opole.pl), upon reasonable request.
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Acknowledgements
Work of V. Plášek was carried out at MCBR UO (International Research and Development Center of the University of Opole), which was established as part of a project co-financed by the European Union under the European Regional Development Fund, RPO WO 2014–2020, Action 1.2 Infrastructure for R&D. Agreement No. RPOP.01.02.00-16-0001/17 − 00 dated January 31, 2018.
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Vítězslav Plášek: Methodology, Investigation, Data sampling, Writing – original draft, Writing—review & editing; Katarzyna Łuczak: Conceptualization, Laboratory Investigation, Writing—original draft, Writing—review & editing, Data curation; Hana Režnarová: Investigation, Data sampling, Writing—review & editing; Arkadiusz Nowak: Methodology, Investigation, Data sampling, Writing—original draft, Writing—review & editing; Grzegorz Kusza: Supervision, Methodology, Investigation, Writing—original draft, Writing—review & editing.
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Plášek, V., Łuczak, K., Kusza, G. et al. Selecting suitable moss indicators for routine bioindication of roadside air pollution. Sci Rep (2026). https://doi.org/10.1038/s41598-026-40922-8
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DOI: https://doi.org/10.1038/s41598-026-40922-8