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  • 1.
    Nordmyr, Linda
    et al.
    Åbo Akademi University.
    Boman, Anton
    Åström, Mats
    Linnaeus University.
    Österholm, Peter
    Åbo Akademi University.
    Estimation of leakage of chemical elements from boreal acid sulphate soils2006In: Boreal environment research, ISSN 1239-6095, E-ISSN 1797-2469, Vol. 11, p. 261-Article in journal (Refereed)
  • 2.
    Pekka, Larissa
    et al.
    Luleå tekniska universitet.
    Halmeenpää, Hanna
    North Ostrobothnia Regional Centre, Oulu.
    Ecke, Frauke
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Vuori, Kari-Matti
    Finnish Environment Institute, Oulu.
    Mokrotovarova, Olga
    Murmansk Areal Department for Hydrometeorology and Environmental Monitoring.
    Öhlander, Björn
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Ingri, Johan
    Assessing pollution in the Kola River, northwestern Russia, using metal concentrations in water and bryophytes2008In: Boreal environment research, ISSN 1239-6095, E-ISSN 1797-2469, Vol. 13, no 1, p. 15-30Article in journal (Refereed)
    Abstract [en]

    Intensive Cu-Ni and Fe mining and smelting in northwestern Russia constitutes a potential risk of pollution in the Kola River. We assessed the degree of pollution along the Kola River by means of overall water quality evaluation and analyses of metals in water samples (dissolved and particulate fractions) and aquatic mosses. The observed pollutant levels were compared with those in unpolluted reference rivers. The results indicate relatively low overall contamination in the Kola River, although Cu and Ni levels are elevated relative to the reference data. Furthermore, PCA ordination models identified clear metal concentration patterns along the river. Al, Cd, Co, Fe, Pb and Zn exhibited an almost continuous increase from the headwaters to the river mouth, whereas As, Ba, Cu, Mn, Mo and Ni showed their highest concentrations in the headwaters, close to the mining areas, relatively low concentrations in the middle parts of the river and elevated concentrations at the river mouth. Bryophyte analysis appeared to be a more sensitive tool for metal pollution assessment than metal concentrations in water.

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