Copper concentration in the soils of the Danube floodplain between the rivers Timok and Vit northwestern Bulgaria

This paper presents an actual and overall picture of soil contamination with copper in the Bulgarian part of the Danube floodplain between the rivers Timok and Vit. Three sampling campaigns in October 2012, April 2013, and October 2017 are carried out in the frame of twostudies. The total content o...

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Main Authors: Velimira STOYANOVA, Tsvetan KOTSEV, Georgi ZHELEZOV, Michaela SIMA, Erika-Andrea LEVEI
Format: Article
Language:English
Published: European Association of Geographers 2019-01-01
Series:European Journal of Geography
Subjects:
Online Access:https://eurogeojournal.eu/index.php/egj/article/view/182
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author Velimira STOYANOVA
Tsvetan KOTSEV
Georgi ZHELEZOV
Michaela SIMA
Erika-Andrea LEVEI
author_facet Velimira STOYANOVA
Tsvetan KOTSEV
Georgi ZHELEZOV
Michaela SIMA
Erika-Andrea LEVEI
author_sort Velimira STOYANOVA
collection DOAJ
description This paper presents an actual and overall picture of soil contamination with copper in the Bulgarian part of the Danube floodplain between the rivers Timok and Vit. Three sampling campaigns in October 2012, April 2013, and October 2017 are carried out in the frame of twostudies. The total content of copper is determined by atomic spectrometry in the soil fraction < .100 mm in the first study, and by X-ray fluorescence spectrometry in the soil fraction < 0.063 mm in the second survey. The copper concentration in the collected topsoil and subsoil samples ranges between 9.5 – 742.7 mg/kg with a median of 34.4 mg/kg. About 94 % of the samples exceed the background reference value, 10 % are above the maximum admissible concentration, and 3 % violate the intervention threshold. The copper content peaks in the Timok Valley and decrease downstream the Danube to nearly steady levels east of the Vidin Lowland.
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issn 1792-1341
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publishDate 2019-01-01
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series European Journal of Geography
spelling doaj-art-cf9c8cc0e9ac4b01967bb152af2a9b212025-08-20T02:58:19ZengEuropean Association of GeographersEuropean Journal of Geography1792-13412410-74332019-01-01102Copper concentration in the soils of the Danube floodplain between the rivers Timok and Vit northwestern BulgariaVelimira STOYANOVA Tsvetan KOTSEVGeorgi ZHELEZOVMichaela SIMA Erika-Andrea LEVEI This paper presents an actual and overall picture of soil contamination with copper in the Bulgarian part of the Danube floodplain between the rivers Timok and Vit. Three sampling campaigns in October 2012, April 2013, and October 2017 are carried out in the frame of twostudies. The total content of copper is determined by atomic spectrometry in the soil fraction < .100 mm in the first study, and by X-ray fluorescence spectrometry in the soil fraction < 0.063 mm in the second survey. The copper concentration in the collected topsoil and subsoil samples ranges between 9.5 – 742.7 mg/kg with a median of 34.4 mg/kg. About 94 % of the samples exceed the background reference value, 10 % are above the maximum admissible concentration, and 3 % violate the intervention threshold. The copper content peaks in the Timok Valley and decrease downstream the Danube to nearly steady levels east of the Vidin Lowland. https://eurogeojournal.eu/index.php/egj/article/view/182Lower Danube, Danube’s lowlands, heavy metals, wetland pollution
spellingShingle Velimira STOYANOVA
Tsvetan KOTSEV
Georgi ZHELEZOV
Michaela SIMA
Erika-Andrea LEVEI
Copper concentration in the soils of the Danube floodplain between the rivers Timok and Vit northwestern Bulgaria
European Journal of Geography
Lower Danube, Danube’s lowlands, heavy metals, wetland pollution
title Copper concentration in the soils of the Danube floodplain between the rivers Timok and Vit northwestern Bulgaria
title_full Copper concentration in the soils of the Danube floodplain between the rivers Timok and Vit northwestern Bulgaria
title_fullStr Copper concentration in the soils of the Danube floodplain between the rivers Timok and Vit northwestern Bulgaria
title_full_unstemmed Copper concentration in the soils of the Danube floodplain between the rivers Timok and Vit northwestern Bulgaria
title_short Copper concentration in the soils of the Danube floodplain between the rivers Timok and Vit northwestern Bulgaria
title_sort copper concentration in the soils of the danube floodplain between the rivers timok and vit northwestern bulgaria
topic Lower Danube, Danube’s lowlands, heavy metals, wetland pollution
url https://eurogeojournal.eu/index.php/egj/article/view/182
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AT georgizhelezov copperconcentrationinthesoilsofthedanubefloodplainbetweentheriverstimokandvitnorthwesternbulgaria
AT michaelasima copperconcentrationinthesoilsofthedanubefloodplainbetweentheriverstimokandvitnorthwesternbulgaria
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