Evaluation Of Heavy Metals Concentration In Jajarm Bauxite Deposit In Northeast Of Iran Using Environmental Pollution Indices

Ali Rezaei (), Hossein Hassani (), Seyedeh Belgheys Fard Mousavi and Nima Jabbari
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Ali Rezaei: Department of Mining and Metallurgy Engineering, Amirkabir University of Technology, Tehran, Iran
Hossein Hassani: Department of Mining and Metallurgy Engineering, Amirkabir University of Technology, Tehran, Iran
Seyedeh Belgheys Fard Mousavi: Department of Agriculture and Environmental Engineering, Tehran University, Tehran, Iran
Nima Jabbari: Department of Civil and Environmental Engineering, Southern California, USA

Malaysian Journal of Geosciences (MJG), 2019, vol. 3, issue 1, 12-20

Abstract: Heavy metals are known as an important group of pollutants in soil. Major sources of heavy metals are modern industries such as mining. In this study, spatial distribution and environmental behavior of heavy metals in the Jajarm bauxite mine have been investigated. The study area is one of the most important deposits in Iran, which includes about 22 million tons of reserve. Contamination factor (CF), the average concentration (AV), the enrichment factor (EF) and geoaccumulation index (GI) were factors used to assess the risk of pollution from heavy metals in the study area. Robust principal component analysis of compositional data (RPCA) was also applied as a multivariate method to find the relationship among metals. According to the compositional bi-plots, the RPC1 and RPC2 account for 57.55% and 33.79% of the total variation, respectively. The RPC1 showed positive loadings for Pb and Ni. Also, the RPC2 showed positive loadings for Cu and Zn. In general, the results indicated that mining activities in the bauxite mine have not created serious environmental hazards in the study area except for lead and nickel. Finding potential relations between mining work and elevated heavy metals concentrations in the Jajarm bauxite mine area necessitates developing and implementing holistic monitoring activities.

Keywords: Environmental behavior; Contamination criteria; Heavy metals; Multivariate statistical analyses; Jajarm bauxite deposit. (search for similar items in EconPapers)
Date: 2019
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Persistent link: https://EconPapers.repec.org/RePEc:zib:zbnmjg:v:3:y:2019:i:1:p:12-20

DOI: 10.26480/mjg.01.2019.12.20

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