Estimation of Source of Heavy Metal Contamination in Sediments of Gomti River (India) using Principal Component Analysis

2005 ◽  
Vol 166 (1-4) ◽  
pp. 321-341 ◽  
Author(s):  
Kunwar P. Singh ◽  
Amrita Malik ◽  
Sarita Sinha ◽  
Vinod K. Singh ◽  
Ramesh C. Murthy
2014 ◽  
Vol 651-653 ◽  
pp. 1402-1409
Author(s):  
Gui Ping Xu ◽  
Xiao Fei Wang ◽  
Li Jun Chen

Concentrations of heavy metals in sugarcane soil of Guangxi were determined and the potential ecological risk index was used simultaneously to evaluate the extent of heavy metals enrichment contamination. Results showed that the pollution extent of heavy metals in sugarcane soil by potential ecological risk followed the order: Cd>Pb>Cu>Zn, Cu and Zn were slightly polluted, with small potential ecological harm, while Pb and Cd were above moderately polluted, with heavy potential ecological harm. Principal component analysis was applied to estimate the sources of heavy metals contamination, the results indicated that the first two components accounted for 61.016% and 26.920% of the total variance respectively, 4 kinds of heavy metal elements had similar sources, tailing dam lead-zinc concentrator upstream along the coast was the main sources of heavy metal contamination.


2014 ◽  
Vol 908 ◽  
pp. 14-17
Author(s):  
Zhuang Li ◽  
Run Li Zou ◽  
Juan Sheng Li ◽  
Jin Huang ◽  
Bang Hui Zhu

In this paper, the contamination of heavy metals in atmospheric particles of PM2.5 and PM10 in a city in China was analyzed, meanwhile the sources of different heavy metals (Cd, Hg, As and Pb) in atmospheric particles (PM2.5 and PM10) were confirmed by source apportionment in a city in China area through principal component analytical method. The research results showed that the heavy metals in PM2.5 and PM10 contaminated the atmosphere environment dramatically. The heavy metal Cd, Hg and Pb came mainly from incomplete combustion of petrol, while the heavy metal of As was the product of electronic metallurgy, which provides the theoretical basis for controlling of atmospheric heavy metal contamination. This method can be also applied to source apportionment of other heavy metals in atmosphere environment.


2020 ◽  
Vol 81 (6) ◽  
pp. 1148-1158
Author(s):  
Maryam Zare Khosheghbal ◽  
Marjan Esmaeilzadeh ◽  
Fereydoun Ghazban ◽  
Mohammad Ebrahim Charmsazi

Abstract This study aimed at exploring the extent of likely sources of heavy metal pollution in sediments of the Khajeh Kory riverbed in the north of Iran. In order to assess the heavy metal contamination, samples from surface sediments in 10 stations covering the river were collected and analysed to determine heavy metal contents including Cd, Cu, Ni, Pb, Zn, Mn, Co, Al, and Fe. Three guidelines were applied to assess the heavy metal contamination. Compared with the global average values, the calculated enrichment factors indicated high values for Fe, Mn, Cd, Co, and Cu, and very high values for Pb and Zn. The results obtained from principal component analysis revealed that the geogenic and anthropogenic sources were the main causes of the widespread enrichment of heavy metals in the riverbed sediments. The results suggested that the riverbed sediments were contaminated with heavy metals, which contribute to the freshwater toxicity in the ecosystem of the Khajeh Kory River.


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