Distribution of cobalt in soil from Kavadarci and the environs

Stafilov, Trajče and Sajn, Robert and Mukaetov, Duško and Andreevski, Marjan and Lepitkova, Sonja and Boev, Blazo and Cvetković, Julijana (2009) Distribution of cobalt in soil from Kavadarci and the environs. UDC 55 CODEN--GEOME 2 ISSN 0352--1206, 23. pp. 43-53.

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The results of the study of spatial distribution of cobalt in surface soil and subsoil over of
the Kavadarci region, Republic of Macedonia, are reported. From the investigated region (360 km2) in total
344 soil samples from 172 locations were collected. At each sampling point soil samples were collected at
two depths, topsoil (0–5 cm) and subsoil soil (20–30 cm). Inductively coupled plasma – mass spectrometry
(ICP-MS) was applied for the determination of cobalt. Data analysis and construction of the map were per-
formed using the Paradox (ver. 9), Statistica (ver. 6.1), AutoDesk Map (ver. 2008) and Surfer (ver. 8.09)
software. It was found that for both topsoil and subsoil the median and average values are 15 mg/kg, ranges
between 6.7 and 58 mg/kg. The highest content of cobalt is present in the soil from the area of Paleozoic and
Mesozoic rocks (Pz-Mz) on the western part of the investigated area and Flysch (E) – Eocene upper flysch
zone (on the northern part) and the lowest in the soils from the Holocene alluvium of the rivers Crna Reka
and Vardar. There are no significant differences between the surface and subsoil in terms of its average quan-
tities. It was found that the critically high contents are related primarily to high contents of cobalt in the sam-
pling points from the western part of the investigated region. The contents of cobalt are higher in subsoil than
in topsoil from which it can be concluded that the occurrence is natural.

Item Type: Article
Uncontrolled Keywords: soil; cobalt; pollution; Kavadarci; Republic of Macedonia
Subjects: Natural sciences > Other natural sciences
Divisions: Faculty of Natural and Technical Sciences
Depositing User: Blazo Boev
Date Deposited: 20 Nov 2012 11:02
Last Modified: 10 Jun 2013 10:37
URI: https://eprints.ugd.edu.mk/id/eprint/1433

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