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Impact of an iron mine and a nickel smelter at the Norwegian/Russian border close to the Barents Sea on surface soil magnetic susceptibility and content of potentially toxic elements.

https://arctichealth.org/en/permalink/ahliterature291835
Source
Chemosphere. 2018 Mar; 195:48-62
Publication Type
Journal Article
Date
Mar-2018
Author
Tadeusz Magiera
Jaroslaw Zawadzki
Marcin Szuszkiewicz
Piotr Fabijanczyk
Eiliv Steinnes
Karl Fabian
Ewa Miszczak
Author Affiliation
Institute of Environmental Engineering, Polish Academy of Sciences, Zabrze, Poland.
Source
Chemosphere. 2018 Mar; 195:48-62
Date
Mar-2018
Language
English
Publication Type
Journal Article
Keywords
Environmental monitoring
Environmental pollution - analysis
Iron
Magnetics
Metals, Heavy - analysis - toxicity
Mining
Nickel
Norway
Rivers
Russia
Soil - chemistry
Soil Pollutants - analysis - toxicity
Abstract
An important problem in soil magnetometry is unraveling the soil contamination signal in areas with multiple emitters. Here, geophysical and geochemical measurements were performed at four sites on a north - south transect along the Pasvik River in the Barents Region (northern Norway). These sites are influenced by depositions from the Bjørnevatn iron mine and a Ni-Cu smelter in Nikel, Russia. To relate the degree and type of pollution from these sources to the corresponding magnetic signal, the topsoil concentrations of 12 Potentially Toxic Elements (PTEs) (As, Cd, Co, Cr, Cu, Fe, Mo, Ni, Pb, Se, Ti, Zn), were determined, magnetic hysteresis parameters and thermomagnetic properties were measured. In situ magnetic low-field susceptibility decreases from north to south with increasing distance from the iron mine. Relatively large magnetic multidomain grains of magnetite and/or titanomagnetite are responsible for the strong magnetic signal from the topsoil close to Bjørnevatn. These particles are related to increased enrichment factors of As, Mo and Cu, yielding high positive correlation coefficients with susceptibility values. At a site furthest away from the iron mine and located 7?km from the Ni-Cu smelter magnetic susceptibility values are much lower but significant positive correlations on the level of p?
PubMed ID
29253789 View in PubMed
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