Spatial distribution and source of potential toxic elements (PTEs) in urban soils of Guangzhou, China

Lü, Ying; Jia, Chongjian; Zhang, Gan‐Lin; Zhao, Yu-Guo; Wilson, Michael

doi:10.1007/s12665-015-5190-0

Cited by 22 publications

(6 citation statements)

References 72 publications

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“…Over the last decades, the research on the environmental geochemistry of heavy metals, owing to their toxicity and durability in the environment, has greatly advanced [ 29 , 30 , 31 ]. Recently, the analysis of principal components has been used in many fields to study soil, including pollution due to heavy metals.…”

Section: Introductionmentioning

confidence: 99%

Spatial Distribution of Heavy Metals and the Environmental Quality of Soil in the Northern Plateau of Spain by Geostatistical Methods

Santos-Francés

Martínez-Graña

Zarza

et al. 2017

IJERPH

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The environmental quality of soil in the central part of the Northern Plateau of Spain has been analyzed by studying the heavy metal content of 166 samples belonging to the horizons A, B and C of 89 soil profiles. The analysis to assess the environmental risk of heavy metals in the soil was carried out by means of the spatial distribution of nine heavy metals and the use of several pollution indices. The results showed that the concentration values of heavy metals (normalxfalse¯ ± S) in the superficial soil horizons were the following: With a total of 6.71 ± 3.51 mg·kg−1, the contents of Cd is 0.08 ± 0.06 mg·kg−1, Co is 6.49 ± 3.21 mg·kg−1, Cu is 17.19 ± 10.69 mg·kg−1, Cr is 18.68 ± 12.28 mg·kg−1, Hg is 0.083 ± 0.063 mg·kg−1, Ni is 12.05 ± 6.76 mg·kg−1, Pb is 14.10 ± 11.32 mg·kg−1 and Zn is 35.31 ± 14.63 mg·kg−1. These nine metals exceed the values of the natural geological background level of Tertiary period sediments and rocks that form part of the Northern Plateau in Spain. Nemerow and Potential Ecological Risk indices were calculated, with the “improved” Nemerow index allowing pollution within the soil superficial horizons to be determined. The data obtained indicated that the majority of the soil (54.61%) showed low to moderate contamination, 22.31% showed moderate contamination and 21.54% of the samples were not contaminated. If we consider the Potential of Ecological Risk Index (RI), the largest percentage of soil samples showed low (70.79%) to moderate (25.38%) ecological risk of potential contamination, where the rest of the soil presented a considerable risk of contamination. The nine trace elements were divided into three principal components: PC1 (Cu, Cr, Ni, Co and Zn), PC2 (As and Hg) and PC3 (Cd). All metals accumulated in the soil came from parent rock, agricultural practices and the run-off of residual waters towards rivers and streams caused by industrial development and an increase in population density. Finally, cartography of the spatial distribution of the heavy metal contents in the soil of the Northern Plateau of Spain was generated using Kriging interpolation methods. Furthermore, the total heavy metal contents in three soil orders present in the area, namely Entisols, Inceptisols, and Alfisols, were analyzed. Other soil parameters, such as the organic matter content, pH, clay content and cation exchange capacity, was measured to determine their influence on and correlation with the heavy metal contents.

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Section: Introductionmentioning

confidence: 99%

Spatial Distribution of Heavy Metals and the Environmental Quality of Soil in the Northern Plateau of Spain by Geostatistical Methods

Santos-Francés

Martínez-Graña

Zarza

et al. 2017

IJERPH

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“…The mean Mn concentration was calculated to be 5.36 mg.kg −1 . Lu et al (2016) studied the potential toxic elements sources and distribution in Guangzhou, China. They found that the Mn concentration varied from 21.2 to 1,286 mg.kg −1 .…”

Section: Resultsmentioning

confidence: 99%

“…Also, Hg, Cd, and Mn formed the third group. The contaminants of the third group were argued to arise from artificial sources (Lu et al, 2016). The next section procures the cluster analysis results based on PCA.…”

Section: Hierarchical Clustering Analysismentioning

confidence: 99%

A statistical approach to study the spatial heavy metal distribution in soils in the Kushk Mine, Iran

Sohrabizadeh

Sodaeizadeh

Ardakani

et al. 2022

Geoscience Data Journal

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The present study was conducted for the spatial distribution and concentration evaluation of heavy metals, including Cu, Cd, Mn, Fe, Zn, and Pb, within 102 soil samples collected from Kushk Mine in Bafgh, Iran. This work employed hierarchical clustering analysis (HCA), principal component analysis (PCA), and spatial distribution patterns, to perform element distribution evaluation within the area. The distributions of heavy metals in the entire area were exhibited in the form of maps. The average concentrations of Cd, Cu, Mn, Fe, Zn, and Pb were found to be 0.39, 0.26, 5.3, 4.1, 51.9, and 40.9 mg.kg−1, respectively. Based on the PCA and HCA findings, the heavy metals were divided into two groups. The first group included Pb, Cd, Zn, and Cu. In the first group, altered threshold‐surpassing anthropogenic and lithogenic pollution was found to be the main factor accounting for Pb and Zn. The second group involved Fe and Mn, which could be impacted by either anthropogenic and lithogenic factors. Furthermore, the geo‐statistical results demonstrated higher contents of the heavy metals in the south of the mine and in the vicinity of the mine tailings. It may be concluded from the results that the heavy metal contents of the area are impacted by anthropogenic and lithogenic factors.

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“…Mn concentration in the studied samples was between 13160-53600 mg kg -1 , the highest amount was related to Doulat Abad bus terminaland the lowest amount with Atlasi bus station, which there was no significant difference between them and the non-polluted area (Yazd University). Lu et al (2016) estimated that the manganese concentration is around 21.2-1286 mg kg -1 in the soils of Guangzhou, China. Khosravi et al (2018) estimated that the amount of Zn metal was 684.11 in the soil around the lead and zinc metal processing plant in Zanjan.…”

Section: Comparison Of Meansmentioning

confidence: 99%

Assessment of environmental pollution of heavy metals deposited on the leaves of trees at Yazd bus terminals

Esfandiari

Ardakani

2022

Environ Sci Pollut Res

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There is a lack of information about urban transport activity in adding heavy elements to the environment. This research assesses concentration some of heavy elements in the deposited atmospheric dust in Yazd bus terminals. Dust samples were collected from the green space in the bus terminals of urban transportation. Following the digestion by nitric acid, determination of the total metal concentration of cadmium(Cd), cobalt(Co), copper(Cu), nickel(Ni), lead(Pb), zinc(Zn), chromium(Cr), and manganese(Mn) in the dust were performed via Atomic Absorption Spectrometry. The map representing the spatial distribution of metals was plotted and their source was identified using Pearson correlation coefficients, Principal Component Analysis(PCA), and Cluster Analysis(CA). The findings indicated that the mean concentration of heavy metals in the deposited dust on the leaves of the trees was in the following order; Cd

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Spatial distribution and source of potential toxic elements (PTEs) in urban soils of Guangzhou, China

Cited by 22 publications

References 72 publications

Spatial Distribution of Heavy Metals and the Environmental Quality of Soil in the Northern Plateau of Spain by Geostatistical Methods

Spatial Distribution of Heavy Metals and the Environmental Quality of Soil in the Northern Plateau of Spain by Geostatistical Methods

A statistical approach to study the spatial heavy metal distribution in soils in the Kushk Mine, Iran

Assessment of environmental pollution of heavy metals deposited on the leaves of trees at Yazd bus terminals

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