Multivariate analysis of heavy metal contamination in urban dusts of Xi'an, Central China

Han, Yongming; Pei-xuan, DU; Cao, Junji; Posmentier, Eric S.

doi:10.1016/j.scitotenv.2005.02.026

Cited by 1,159 publications

(406 citation statements)

References 43 publications

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“…The multivariate statistic method was used to reveal the associations of the chemical elements. The factor analysis (FA) from an accurate number of variables provides smaller number of new variables, so-called factors that present the association of statistical significant variables (Davis 1986;Filzmoser et al 2005;Reimann et al 2002;Š ajn 2006;Yongming et al 2006;Ž ibret and Š ajn 2010).…”

Section: Data Processingmentioning

confidence: 99%

Distribution of Chemical Elements in Attic Dust as Reflection of Their Geogenic and Anthropogenic Sources in the Vicinity of the Copper Mine and Flotation Plant

Balabanova

Stafilov

Šajn

et al. 2010

Arch Environ Contam Toxicol

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The main aim of this article was to assess the atmospheric pollution with heavy metals due to copper mining Bučim near Radoviš, the Republic of Macedonia. The open pit and mine waste and flotation tailings are continually exposed to open air, which leads to winds carrying the fine particles into the atmosphere. Samples of attic dust were examined as historical archives of mine emissions, with the aim of elucidating the pathways of pollution. Dust was collected from the attics of 29 houses, built between 1920 and 1970. Nineteen elements (Ag, Al, As, Ba, Ca, Cd, Co, Cr, Cu, Li, Fe, K, Mg, Mn, Na, Ni, Pb, Sr, and Zn) were analyzed by atomic emission spectrometry with inductively coupled plasma. The obtained values of the investigated elements in attic dust samples were statistically processed using nonparametric and parametric analysis. Factor analysis revealed three factors governing the source of individual chemical elements. Two of them grouping Ca, Li, Mg, Mn, and Sr (Factor 1) and Co, Cr, and Ni (Factor 2) can be characterized as geogenic. The third factor grouping As, Cu, and Pb is anthropogenic and mirrors dust fallout from mining operation and from flotation tailings. Maps of areal deposition were prepared for this group of elements, from which correlation of these anthropogenic born elements was confirmed.

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Section: Data Processingmentioning

confidence: 99%

Distribution of Chemical Elements in Attic Dust as Reflection of Their Geogenic and Anthropogenic Sources in the Vicinity of the Copper Mine and Flotation Plant

Balabanova

Stafilov

Šajn

et al. 2010

Arch Environ Contam Toxicol

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“…2 Indeed, their components and quantity are environmental pollution indicators. 3 Metals may be accumulated in dust from atmospheric deposition by sedimentation, impaction and interception. 4 Accumulations of metals including Pb, Zn, Cd and Cu on road surfaces arise from vehicle exhausts, industrial discharges, oil lubricants, automobile parts and corrosion of building materials, asphalts, road paints, concrete, etc.…”

Section: Introductionmentioning

confidence: 99%

Heavy metals in bulk and particle size fractions from street dust of Kathmandu city as the possible basis for risk assessment

Karmacharya

Shakya

2012

Sci World

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Street dust has been sampled from eight major locations of Kathmandu city. The samples were separated into three particle size fractions (<425, 425-600 and >600 μm) and analyzed for Pb, Cu, Zn and Fe using Atomic Absorption Spectrophotometric method. Results revealed that the bulk samples as well as all particle size fractions under investigation were found to have the metal abundance order as Fe > Zn > Cu > Pb. However, the trace metal concentrations increased with the decrease of dust particle size in all samples. About 35-68% of heavy metals were associated with the small particle size fraction (<425 μm) and this particle size accounted for 64-81% of the total mass of street dust from all locations. The smaller particle size fraction has a higher heavy metal content, low density, high mobility in runoff, and thus is a higher risk for the residents of Kathmandu city. From the present study, we conclude that a monitoring plan and a suitable risk assessment are necessary to evaluate the evolution of metal concentration in dust in order to develop the proper measures for reducing the risk of inhalation and ingestion of dust for humans and environment.

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“…Significant principal components (eigenvalues >1.0) were extracted from the variables based on the Kaiser Criterion (Kaiser 1960). The factor loadings were considered significant or excellent if they were >0.6 or >0.71, respectively (DelValls et al 1998;Yongming et al 2006).…”

Section: Methodsmentioning

confidence: 99%

Determination of Elements Leachability from Sarcheshmeh Porphyry Copper Mine Tailings: Application of Toxicity Characteristic Leaching Procedure

Khorasanipour

Afsar²

2014

Environ. Process.

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The Toxicity Characteristic Leaching Procedure (TCLP) was applied in order to determine the leachability and mobility of different trace metals and metalloids from the Sarcheshemh Cu mine tailings. Twenty one solid samples were collected from weathered and fresh tailings and also from evaporative secondary minerals and efflorescence salts associated with the oxidation zone of dried tailings. According to the TCLP results, the most leachable and mobile trace elements are Ag, Al, Cd, Ni, S, Se, Co, Cr, Cu, Fe, Mn and Zn. These contaminant elements were concentrated in the surface evaporative layer formed on the top of old weathered tailings. Very high concentrations of Al (27,600 mgL −1 ), Cu (56,900 mgL −1 ), Mn (13,260 mgL −1 ), S (151,800 mgL −1 ), and Zn (3,935 mgL −1 ) were observed in the TCLP results of the evaporative samples (mean values are presented). The results obtained from evaporative and efflorescence samples were higher than the regulatory levels for Al, Cu, Cd, Ni, Se, and Zn. The maximum leachability was found for Al and Cu, followed by Ni, Cd, Zn, and Se. The results of this study are useful for the prediction of contamination potential of trace elements and environmental management of mine tailings.

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Multivariate analysis of heavy metal contamination in urban dusts of Xi'an, Central China

Cited by 1,159 publications

References 43 publications

Distribution of Chemical Elements in Attic Dust as Reflection of Their Geogenic and Anthropogenic Sources in the Vicinity of the Copper Mine and Flotation Plant

Distribution of Chemical Elements in Attic Dust as Reflection of Their Geogenic and Anthropogenic Sources in the Vicinity of the Copper Mine and Flotation Plant

Heavy metals in bulk and particle size fractions from street dust of Kathmandu city as the possible basis for risk assessment

Determination of Elements Leachability from Sarcheshmeh Porphyry Copper Mine Tailings: Application of Toxicity Characteristic Leaching Procedure

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