DBPapers

MAGNETIC METHODS FOR DELINEATION OF HEAVY METAL POLLUTION IN BURGAS REGION

AUTHOR/S: N. JORDANOVA, D. JORDANOVA
Sunday 1 August 2010 by Libadmin2010

10th International Multidisciplinary Scientific GeoConference - SGEM2010, www.sgem.org, SGEM2010 Conference Proceedings/ ISBN 10: 954-91818-1-2, June 20-26, 2010, Vol. 1, 783-790 pp

ABSTRACT

Magnetic susceptibility mapping and rock magnetic characterization of topsoils from
southeastern Bulgaria near the Black sea coast was carried out for delineation of the
anthropogenic pollution. The presence of strongly magnetic parent material (volcanites,
volcanoclastic sediments) and various soil types (Vertisols, Luvisols, Chromic
Cambisols, Planosols, Fluvisols) were taken into account by using normalization of the
field susceptibilities to the median susceptibility value, calculated separately for each
soil type. The influence of anthropogenic pollution on the magnetic signal is evaluated
considering the distribution of field susceptibility values according to soil type.
Significant correlation was found between field susceptibility and the content of Zn, Cu
and Co. The main pollution source in the region is the Cu-mining activities, which
cause atmospheric dustfall of strongly magnetic particles on the soil surface. The
petrochemical industry in the area is not a source of significant magnetic enhancement
and heavy metal pollution of the topsoils.

Keywords: magnetic susceptibility, topsoil, field mapping, heavy metals,
environmental pollution