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Assessing pollution in the Kola River, northwestern Russia, using metal concentrations in water and bryophytes
Luleå tekniska universitet.
North Ostrobothnia Regional Centre, Oulu.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
Finnish Environment Institute, Oulu.
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2008 (English)In: Boreal environment research, ISSN 1239-6095, E-ISSN 1797-2469, Vol. 13, no 1, 15-30 p.Article in journal (Refereed) Published
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.

Place, publisher, year, edition, pages
2008. Vol. 13, no 1, 15-30 p.
Research subject
Landscape Ecology; Applied Geology
URN: urn:nbn:se:ltu:diva-8361Local ID: 6de5f720-0236-11dd-9241-000ea68e967bOAI: diva2:981253
Validerad; 2008; 20080404 (pafi)Available from: 2016-09-29 Created: 2016-09-29Bibliographically approved

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Ecke, FraukeÖhlander, BjörnIngri, Johan
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