Study of litter influence on magnetic susceptibility measurements of urban forest topsoils using the MS2D sensor |
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| Authors: | Jaros?aw Zawadzki Piotr Fabijańczyk Tadeusz Magiera Zygmunt Strzyszcz |
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| Institution: | (1) Faculty of Environmental Engineering, Warsaw University of Technology, Nowowiejska 20, 00-653 Warsaw, Poland;(2) Institute of Environmental Engineering, Polish Academy of Science, M. Curie-Skłodowskiej 34, 41-819 Zabrze, Poland |
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| Abstract: | Field magnetometry is fast and convenient method used to detect areas contaminated by technogenic magnetic particles and potentially
polluted with heavy metals. Frequently, measurements of soil magnetic susceptibility (κ) are carried out with MS2D Bartington
sensor, which penetration range equals 10 cm, although 90% of the total signal is detected from a depth of up to 6 cm. Thick
uppermost organic soil layers may significantly influence on the measured κ because the penetration range may be not large
enough to cover the layers where the most of anthropogenic contaminants are cumulated. The aim of the study was to investigate
on how the removal of the litter improves the MS2D measurements of soil pollution. Accordingly, the correlations between κ
values measured on the successively removed overlying soil sub-horizons were investigated. Measurements were performed at
15 sites located in different forest in the Upper Silesian Industrial Area, Poland. The results showed that the litter removal
enabled the MS2D to measure the κ more related to the anthropogenic pollution, and did not affect the measuring variance. |
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