scholarly journals Determination of heavy metal elements concentration in soils and tailing sediments from lateritic nickel post-mining areas in Motui District, Southeast Sulawesi

2022 ◽  
Vol 9 (2) ◽  
pp. 3273-3279
Author(s):  
Muhardi Mustafa ◽  
Adi Maulana ◽  
Ulva Ria Irfan ◽  
Adi Tonggiroh

Heavy metal elements concentration study has been determined from soils and tailing sediments in laterite nickel post-mining area in Motui District Southeast Sulawesi. This study aimed to determine the concentration of some heavy metal elements, especially Fe, Co, Mn and Cr, from surface soils sediments in waste dump sites and tailing sediments in settling ponds from lateritic nickel post-mining areas. A total of 20 samples consisting of 18 soil samples and 2 tailing sediments samples were systematically collected for the study. The soil samples from the waste dump site profile were collected from 3 layers which were divided based on the colour of the soils from top to bottom, namely Layer C, Layer D and Layer E. Six soil samples were taken from each layer with space between each sample in one layer was about 50 – 60 cm. The samples were sent to the laboratory and analysed using Atomic Absorption Spectrometer (AAS) method to determine the concentration of heavy elements. Metal-bearing minerals detected from the bedrock consists of chromite, manganese, magnetite and limonite which are responsible for the Cr, Mn and Co, and Fe content, respectively. The result showed that Fe content is significantly higher in soil samples from Layer C and tailing sediments with dark red to brown in colour, suggesting the strong relation between Fe content and colour index. The general element mobility trend showed that Mn and Co are positively correlated in soil sampling from all layers and tailing samples, whereas Fe and Cr show a negative correlation trend in Layer C, D and tailing sediments but positively correlated in Layer E.

2021 ◽  
Vol 248 ◽  
pp. 01042
Author(s):  
YanShan Yin ◽  
Jin Xu

At present, heavy metal elements in dust have great influence on air quality and human health,therefore, the content and influence of heavy metal elements on campus were studied. Firstly, PM10 and total dust in the autumn campus atmosphere were sampled for 10 consecutive days, and then digested by electric heating plate digestion method. Then, inductively coupled plasma emission spectrometer (ICP-OES) was used to detect and analyze the content and concentration ratio of seven heavy metal elements Cu, Pb, Cd, Zn, Cr, Hg and Ba in PM10 and total dust. Finally, through comparative analysis, it is concluded that heavy metal pollutants in the atmospheric environment are mainly Zn and Ba, and the concentrations of Cd, Zn and Ba are seriously exceeded, so the air quality in Xiqing District of Tianjin is poor, and the particle size distribution of Cd and Hg makes it easy to enter the human body, which is especially unfavorable to human health.


2020 ◽  
Vol 195 ◽  
pp. 110500
Author(s):  
Mariana Colaço ◽  
Alana Duarte ◽  
Mónica Zuzarte ◽  
Benilde F.O. Costa ◽  
Olga Borges

2021 ◽  
Vol 244 ◽  
pp. 117879 ◽  
Author(s):  
Yuanyuan Niu ◽  
Fang Wang ◽  
Songmin Liu ◽  
Wenjie Zhang

2002 ◽  
Vol 12 (3) ◽  
pp. 268-272 ◽  
Author(s):  
Jun-bao Yu ◽  
Jing-shuang Liu ◽  
Jin-da Wang ◽  
Zhong-gen Li ◽  
Xue-lin Zhang

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