Abstract
This study deals with the assessment of trace elements pollution of urban soil in Šabac. A total of 32 samples of the surface layer of soil (up to 10 cm deep) were collected from the locations of three city parks in the urban zone. Pseudototal concentrations of seven elements: copper (Cu), lead (Pb), cobalt (Co), nickel (Ni), manganese (Mn), cadmijum (Cd) and chrome (Cr) were determined in the samples after aqua regia digestion, using atomic absorption spectrophotometry. The abundance of elements in the analyzed soil samples was: Mn >> Pb> Cr> Ni> Cu> Co> Cd. The conducted correlation analysis showed good correlation of the pairs of Cu - Pb, Cu - Cd and Pb - Cd elements, while the cluster analysis singled out two main groups of elements. The first group included Pb, Cd, and Cu, indicating that these elements originated from anthropogenic sources, while the remaining elements were probably of geogenic origin. Based on the obtained results, the assessment of the level of soil contamination with trace elements was performed, as well as the assessment of the ecological risk. Mean values of contamination factors indicate that the soil from all three examined sites is contaminated with Pb and Cd. The Cd has the higher individual potential ecological risk then the other elements.
Highlights
U literaturi ne postoje podaci o sistematskom praćenju kvaliteta urbanog zemljišta koje je decenijama bilo izloženo uticaju industrije locirane u neposrednoj blizini grada, sagorevanju fosilnih goriva i sve većem broju automobila
Na osnovu dobijenih rezultata može se uočiti da je najveći opseg vrednosti koncentracija uočen za Mn od 496,7 do 1038,1 mg/kg, i Pb od 45,8 do 155,8 mg/kg
Srednje vrednosti koncentracija Pb u uzorcima zemljišta urbanih parkova u drugim evropskim gradovima su u opsegu od 85,2 mg/kg u Zagrebu [34] do 796,1 mg/kg u Bristolu [37] (Tabela 2)
Summary
Grad Šabac nalazi se u zapadnoj Srbiji na obali reke Save, 44°45′21′′ SGŠ; 19°41′38′′ IGD. Prostire se na površini od 795 km i ima oko 120.000 stanovnika. U industrijskoj zoni nalazi se nekadašnji gigant hemijske industrije HI "Zorka", koja danas delom postoji u obliku samostalnih preduzeća sličnih delatnosti, ali manjeg obima rada. U literaturi ne postoje podaci o sistematskom praćenju kvaliteta urbanog zemljišta koje je decenijama bilo izloženo uticaju industrije locirane u neposrednoj blizini grada, sagorevanju fosilnih goriva i sve većem broju automobila. Mapa Šapca sa lokacijama mesta uzorkovanja Figure. Map of the Šabac with location of sampling sites
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