Geochemical variation and contamination level of potentially toxic elements in land-uses urban soils

Author(s):  
Md Saiful Islamd ◽  
Abubakr M. Idris ◽  
Abu Reza Md Towfiqul Islam ◽  
Khamphe Phoungthong ◽  
Mir Mohammad Ali ◽  
...  
Proceedings ◽  
2018 ◽  
Vol 2 (23) ◽  
pp. 1459
Author(s):  
Carlos Boente ◽  
Carlos Sierra ◽  
Julián Martínez ◽  
Eduardo Rodríguez-Valdés ◽  
Elías Afif ◽  
...  

Former industrial sites are now dedicated to other land uses in the Linares mining district. Here we selected five residential/farming areas (squares of 1 km2 each) and sought to evaluate the levels of contamination by Potentially Toxic Elements (PTEs) of the soils, and also to offer an insight into the threat these pollutants may pose to human health or the environment by means of risk assessment. High concentrations especially of Pb, and also of As, Cd, Cu and Zn were found in quantities that are considerably bioavailable. Moreover, risk assessment revealed unacceptable concentrations for Pb and As in all the areas as well as for Cd and Cu in some squares.


2007 ◽  
Vol 36 (1) ◽  
pp. 70-79 ◽  
Author(s):  
M. Biasioli ◽  
H. Grčman ◽  
T. Kralj ◽  
F. Madrid ◽  
E. Díaz-Barrientos ◽  
...  

2021 ◽  
Vol 13 (4) ◽  
pp. 2029
Author(s):  
Evangelia E. Golia ◽  
Sotiria G. Papadimou ◽  
Christos Cavalaris ◽  
Nikolaos G. Tsiropoulos

A three-year study, designed to record the level of potentially toxic elements within the urban complex in the city of Volos, Greece, was carried out between 2018 and 2020. For the needs of the aforementioned study, 62 surface (0–15 cm) soil samples were collected each year (i.e., 186 samples in total) from an urban area of 3.65 km2, and the average value of pseudo-total metal concentration was measured. Soil pollution indices, such as the contamination factor (CF) and the geo-accumulation index (Igeo), were estimated regarding each of the metals of interest. The respective thematic maps were constructed, and the spatial variability of the contamination degree was displayed. Higher values of the CF and Igeo were obtained near the heavy traffic roads and beside the railway station, the bus stations, and the commercial port. The maps based on the pollution indices, along with the database that was constructed using the appropriate mathematical tools of geostatistical analysis, may be a useful tool for monitoring, prediction, and continuous verification of contamination in the urban soils of Volos city.


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