Journal
ENVIRONMENTAL POLLUTION
Volume 156, Issue 3, Pages 618-627Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2008.06.030
Keywords
Magnetic susceptibility; Topsoil profiles; Heavy metals; Iron oxides
Categories
Funding
- Grant Agency of the Czech Republic [205/07/0941]
- Project of the Polish Ministry of Science and Higher Education [2889/T02/2007/32]
- Academy of Sciences of the Czech Republic
- Polish Academy of Sciences
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Previous investigations revealed a strong magnetic anomaly due to soil magnetic enhancement in the industrialized cross-border area of Upper Silesia (Poland) and Northern Moravia (Czech Republic). Since industrial and urban dusts contain magnetic particles, this soil magnetic enhancement is assumed to be of anthropogenic origin, caused by a high concentration of atmospherically deposited magnetic particles, accumulated in topsoil layers. This assumption is proved by investigations of vertical profiles of magnetic susceptibility along a transect crossing the border area of the two countries. The results show that the population of magnetic minerals in the organic horizon is different from that in the mineral horizons. The vertical distribution of magnetic susceptibility and thermomagnetic analysis suggests negligible lithogenic contribution. The observed relationship between magnetic susceptibility and some heavy metals, confirmed by micromorphological observations and microchemical analysis of magnetic particles separated from the organic horizons of forest topsoil, has proved the usefulness of soil magnetometry for pollution study. (C) 2008 Elsevier Ltd. All rights reserved.
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