Contamination levels and vertical distribution of trace metals with application of geochemical indices in the sediment cores of the Bizerte Lagoon-Ichkeul lake complex in northeastern Tunisia

2018 ◽  
Vol 11 (2) ◽  
Author(s):  
Bochra Brik ◽  
Abdelwaheb Aydi ◽  
Chadia Riahi ◽  
Ali Sdiri ◽  
Kamel Regaya
Keyword(s):  
Trace Metals ◽  
Vertical Distribution ◽  
Sediment Cores ◽  
Bizerte Lagoon ◽  
Geochemical Indices ◽  
Ichkeul Lake ◽  
Northeastern Tunisia ◽  
Contamination Levels

Bioavailability and toxicity of trace metals (Cd, Cr, Cu, Ni, and Zn) in sediment cores from the Shima River, South China

Chemosphere ◽  
2018 ◽  
Vol 192 ◽  
pp. 31-42 ◽  
Author(s):  
Lei Gao ◽  
Zhuowei Wang ◽  
Shaoheng Li ◽  
Jianyao Chen
Keyword(s):  
Trace Metals ◽  
South China ◽  
Sediment Cores

scholarly journals Evaluation of Trace Elemental Levels as Pollution Indicators in an Abandoned Gold Mine Dump in Ekurhuleni Area, South Africa

2021 ◽  
Author(s):  
Godwin Okereafor ◽  
Mamookho Makhatha ◽  
Lukhanyo Mekuto ◽  
Vuyo Mavumengwana
Keyword(s):  
South Africa ◽  
Trace Metals ◽  
Cation Exchange Capacity ◽  
Major Elements ◽  
Exchange Capacity ◽  
Pollution Indices ◽  
Trace Elemental ◽  
Contamination Levels ◽  
High Degree ◽  
Mine Dump

In the Blesbokspruit area of Ekuhurleni, South Africa, previous gold mining activities resulted in many tailings dump sites. 20 representative soil samples were used in describing the distribution of metals. The soils were very strongly acidic ranging from 3.86 to 4.34 with a low cation exchange capacity (CEC). Based on X-ray fluorescence (XRF) analysis, elemental composition of the soils revealed average values of major elements such as Na2O (0.18%), MgO (0.63%), Al2O3 (6.51%), SiO2 (81.83%), P2O5 (0.04%), SO3 (3.40%), K2O (1.98%), CaO (0.45%), TiO2 (0.51%), Cr2O3 (0.17%), MnO (0.04%), Fe2O3 (3.59%), NiO (0.04%), As2O3 (0.02%), with Rb2O and SrO falling below 0.01%. Trace metals (TM) contamination levels in the soils were evaluated using various pollution indices which revealed that over 60% of the soils were between the high degree and the ultra-high degree of contamination classes. The concentration of various trace metals varies from 860.3–862.6 mg/kg for Cr; 324.9–328.4 mg/kg for Al; 200.9–203.4 mg/kg for As; 130.1–136.2 mg/kg for Fe; 121.9–125.8 mg/kg for Pb; 27.3–30.2 mg/kg for Co; 23.8–26.8 mg/kg for Ni; 7.2–9.2 mg/kg for Ti; 7.1–9.2 mg/kg for Cd; 4.0–5.6 mg/kg for Zn and 0.1–0.6 mg/kg for Cu.

Trace metals in fine grained sediments of the Kaštela Bay, adriatic sea

1998 ◽  
Vol 38 (11) ◽  
pp. 169-175 ◽  
Author(s):  
D. Bogner ◽  
M. Juracic ◽  
N. Odžak ◽  
A. Baric
Keyword(s):  
Trace Metals ◽  
Adriatic Sea ◽  
Sediment Cores ◽  
Organic Matter Content ◽  
Matter Content ◽  
Homogeneous Distribution ◽  
Sediment Samples ◽  
Fine Grained ◽  
The Past ◽  
Cu And Zn

The aim of the present work was to study the past and present contamination of the Kaštela bay using chemical analysis of selected trace metals (Cd, Pb, Zn, Cu, Cr, Mn and Ni) in fine grained sediment cores. Sediment samples were taken at three locations with silty sediments. The highest concentrations of Cd, Pb, Cu and Zn and the lowest concentration of Ni were found in the east, the most contaminated part of the Bay. The decrease of Cd, Pb, Cu and Zn concentrations with increased depth, indicates their anthropogenic origin. Homogeneous distribution of Cr, Mn and Ni in the sediment cores indicates their terrigenous origin. The correlation of Zn, Cu and Ni concentration with the organic matter content was determined.

Trace metals in sediment cores from Deception and Penguin Islands (South Shetland Islands, Antarctica)

2011 ◽  
Vol 62 (11) ◽  
pp. 2571-2575 ◽  
Author(s):  
Roberta Guerra ◽  
Eva Fetter ◽  
Liziane M.M. Ceschim ◽  
César C. Martins
Keyword(s):  
Trace Metals ◽  
Sediment Cores ◽  
South Shetland Islands ◽  
Shetland Islands
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