Heavy metals in neogene sedimentary rocks as a potential geogenic hazard for sediment, soil, surface and groundwater contamination (Eastern Posavina and Lopare Basin, Bosnia and Herzegovina)
The influence of geochemical processes (weathering, erosion and dilution) of Internal Dinarides to the Posavina Neogene Basin and their implication to the pollution of Sava River sediments of four sampling sites in the Eastern Posavina (Županja, Brčko, Bosanska Rača and Sremska Mitrovica) w...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Serbian Chemical Society
2015-01-01
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| Series: | Journal of the Serbian Chemical Society |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/0352-5139/2015/0352-51391400047G.pdf |
| Summary: | The influence of geochemical processes (weathering, erosion and dilution) of
Internal Dinarides to the Posavina Neogene Basin and their implication to the
pollution of Sava River sediments of four sampling sites in the Eastern
Posavina (Županja, Brčko, Bosanska Rača and Sremska Mitrovica) was studied.
For this purpose, comparison of contents of heavy metals (Pb, Zn, Cu, Ni, Cr,
Cd, As, Hg) of the Eastern Posavina sediments with local background values
was performed. Sediments from two boreholes of the Lopare Basin considered as
non-polluted and representative for specific geologic and hydrogeologic
system were used for calculation of local background values. The aim was to
assess whether observed heavy metals concentrations of four sampling sites
along the Sava River represent background/natural or anthropogenic
contamination. This task is performed using the geo-accumulation index and
total enrichment factor. According to values of the total enrichment factor
(0.25 - 0.71), the anthropogenic impact on the investigated area is quite
low. The heavy metals contents in river sediments, soil and groundwater are
mainly controlled by geochemical processes, particularly weathering (Chemical
Proxy of Alteration value ~ 60). The results also offer novel insights into
the elevated geogenic levels of Cr and Ni in the Eastern Posavina region.
[Projekat Ministarstva nauke Republike Srbije, br. 176006] |
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| ISSN: | 0352-5139 1820-7421 |