title: Metals in Pleurozium schreberi and Polytrichum commune from areas with various levels of pollution.
abstract: Metals deposited into ecosystems are non-degradable and become one of the major toxic agents which accumulate in habitats. Thus, their concentration requires precise monitoring. To evaluate pollution around a chlor-alkali plant, a glass smelter, two power plants and a ceramic and porcelain factory, we selected terrestrial mosses with different life forms: the orthotropic and endohydric Polytrichum commune and plagiotropic and ectohydric Pleurozium schreberi. Metal concentrations were determined in both species growing together at sites situated at various distances approximately 0.75, 1.5, 3 and 6 km from polluters. MARS analysis evaluated different tendencies of both species for Cd, Co and Pb accumulation depending on the distance from the emitter. In P. schreberi, the concentration of these metals diminished relatively rapidly with an increasing distance from the emitter up to 3000 m and then stabilised. For P. commune, a steady decrease could be observed with increasing the distance up to 6000 m. PCCA ordination explained that both species from the vicinity of the chlor-alkali plant were correlated with the highest Co, Cr, Cu, Fe and Pb as well as Mn and Ni concentrations in their tissues. The mosses from sites closest to both power plants were correlated with the highest Cd and Zn concentrations. P. commune contained significantly higher Cd, Cr, Ni, Pb and Zn concentrations compared to P. schreberi. This may be caused by the lamellae found in the leaves of P. commune which increase the surface area of the possible aerial absorption of contaminants. Soil may also be an additional source of metals, and it affects the uptake in endohydric P. commune more than in ectohydric P. schreberi. However, the precise explanation of these relations needs further investigation.
authors.affiliation: Department of Ecology, Biogeochemistry and Environmental Protection, University of Wrocław, ul. Kanonia 6/8, 50-328, Wrocław, Poland.
authors.forename: Krzysztof
authors.initials: K
authors.lastname: Zawadzki
authors.affiliation: Department of Ecology, Biogeochemistry and Environmental Protection, University of Wrocław, ul. Kanonia 6/8, 50-328, Wrocław, Poland. aleksandra.samecka-cymerman@uwr.edu.pl.
authors.forename: Aleksandra
authors.initials: A
authors.lastname: Samecka-Cymerman
authors.affiliation: Department of Ecology, Biogeochemistry and Environmental Protection, University of Wrocław, ul. Kanonia 6/8, 50-328, Wrocław, Poland.
authors.forename: Krzysztof
authors.initials: K
authors.lastname: Kolon
authors.affiliation: Department of Ecology, Biogeochemistry and Environmental Protection, University of Wrocław, ul. Kanonia 6/8, 50-328, Wrocław, Poland.
authors.forename: Bronisław
authors.initials: B
authors.lastname: Wojtuń
authors.affiliation: Department of Ecology, Biogeochemistry and Environmental Protection, University of Wrocław, ul. Kanonia 6/8, 50-328, Wrocław, Poland.
authors.forename: Lucyna
authors.initials: L
authors.lastname: Mróz
authors.affiliation: Institute for Water and Wetland Research, Department of Environmental Science, Radboud University Nijmegen, Huygens building, Heyendaalseweg 135, 6525 AJ, Nijmegen, The Netherlands.
authors.forename: Alexander J
authors.initials: AJ
authors.lastname: Kempers
mesh_terms: D000393:Air Pollutants / Q000378:metabolism*; D044002:Bryophyta / Q000378:metabolism*; D004784:Environmental Monitoring; D019216:Metals, Heavy / Q000378:metabolism*; D018515:Plant Leaves / Q000378:metabolism; D011044:Poland; D012989:Soil Pollutants / Q000378:metabolism*; D013045:Species Specificity
chemical_list: D000393:Air Pollutants; D019216:Metals, Heavy; D012989:Soil Pollutants
keywords: Ectohydric; Endohydric; Terrestrial mosses; Trace element