High resolution mapping of anthropogenic pollution in the Giant Mountains National Park using soil magnetometry |
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Authors: | A Kapička E Petrovský H Fialová V Podrázský I Dvořák |
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Affiliation: | (1) Institute of Geophysics ASCR v.v.i., Boční II/1401, 141 31 Praha 4, Czech Republic;(2) Faculty of Forestry and Wood Sciences, Czech University of Life Sciences, Kamycká 129, 165 21 Praha 6, Czech Republic;(3) Institute of Hydrodynamics ASCR v.v.i., Pod Pat’ankou 30/5, 166 12 Praha 6, Czech Republic |
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Abstract: | Soil magnetometry was used for detailed mapping of immission load over the territory of the Giant Mountains National Park.
This project is a continuation of our previous study, which suggested that low-field magnetic susceptibility of topsoils in
this region is controlled by atmospherically deposited anthropogenic ferromagnetic particles. In the present study, we have
compiled a map of topsoil magnetic susceptibility on the basis of measurements on more than 460 sites. Elevated values of
magnetic susceptibility can be attributed to local sources of pollution, located within and at the margins of the Park. We
have identified a group of heavy metals of anthropogenic origin, present in the topsoils, and found a positive correlation
between the concentration of Pb and magnetic susceptibility. Our results prove that magnetic mapping is a sensitive, fast
and robust method, which can be advantageously applied to regions with relatively low degree of pollution, such as the Giant
Mountains National Park. |
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Keywords: | soil pollution magnetic mapping environmental monitoring |
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