Identification of heavy metal pollutants using multivariate analysis and effects of land uses on their accumulation in urban soils in Beijing, China

Wang, Meie; Markert, Bernd; Chen, Weiping; Peng, Chi; Ouyang, Zhiyun

doi:10.1007/s10661-011-2388-9

Cited by 87 publications

(56 citation statements)

References 18 publications

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“…The suburban shelterbelt and productive plantation soils converted from agricultural soils had much lower SIC densities than those of the other land use types. These can be partially explained by anthropogenic organic or inorganic particles incorporated in soils during greenspace construction, such as technogenic substrates like rubble, bricks, slags, ashes, waste, and sludge (Lehmann and Stahr, 2007;Xia et al, 2011;Nehls et al, 2012;Wang et al, 2012b). This also supports the hypothesis that the impact of human-caused disturbance (e.g., movements of soil and building construction) is more pronounced during, rather than after, the landdevelopment process (Kaye et al, 2006).…”

Section: Effect Of Land Use On Soil Carbon Stocksupporting

confidence: 61%

Comparison on soil carbon stocks between urban and suburban topsoil in Beijing, China

Luo

Mao

2014

Chin. Geogr. Sci.

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Abstract:The urban population and urbanized land in China have both increased markedly since the 1980s. Urban and suburban developments have grown at unprecedented rates with unknown consequences for ecosystem functions. In particular, the effect of rapid urbanization on the storage of soil carbon has not been studied extensively. In this study, we compared the soil carbon stocks of different land use types in Beijing Municipality. We collected 490 top-soil samples (top 20 cm) from urban and suburban sites within the Sixth Ring Road of Beijing, which cover approximately 2400 km 2 , and the densities of soil organic carbon (SOC), soil inorganic carbon (SIC), and total carbon (TC) were analyzed to determine the spatial distribution of urban and suburban soil carbon characteristics across seven land use types. The results revealed significant differences in soil carbon densities among land use types. Additionally, urban soil had significantly higher SOC and SIC densities than suburban soil did, and suburban shelterbelts and productive plantations had lower SIC densities than the other land use types. The comparison of coefficients of variance (CVs) showed that carbon content of urban topsoil had a lower variability than that of suburban topsoil. Further findings revealed that soil carbon storage increased with built-up age. Urban soil built up for more than 20 years had higher densities of SOC, SIC and TC than both urban soil with less than 10 years and suburban soil. Correlation analyses indicated the existence of a significantly negative correlation between the SOC, SIC, and TC densities of urban soil and the distance to the urban core, and the distance variable alone explained 23.3% of the variation of SIC density and 13.8% of the variation of TC density. These results indicate that SOC and SIC accumulate in the urban topsoil under green space as a result of the conversion of agricultural land to urban land due to the urbanization in Beijing.

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Section: Effect Of Land Use On Soil Carbon Stocksupporting

confidence: 61%

Comparison on soil carbon stocks between urban and suburban topsoil in Beijing, China

Luo

Mao

2014

Chin. Geogr. Sci.

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“…Principal component analysis (PCA) and hierarchical cluster analysis (HCA) were applied to the data set with the aim of identifying the source of Hg in Athens topsoil. The methods have been widely applied to several urban soil studies aiming to apportion natural versus anthropogenic contributions [5,6,20,29]. PCA was performed with Varimax rotation, which facilitates the interpretation of the output results by minimizing the number of variables with a high loading on each component.…”

Section: Discussionmentioning

confidence: 99%

Mercury in the Urban Topsoil of Athens, Greece

Kelepertzis

Argyraki

2015

Sustainability

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Abstract:The present study documents the Hg content in 45 urban topsoil samples from the highly urbanized city of Athens, Greece. The Hg concentrations were quantified by applying aqua regia digestion on the <100 μm soil fraction followed by inductively coupled plasma-mass spectrometry (ICP-MS) with a detection limit of 5 μg·kg , which is the maximum concentration value expected to be present in normal uncontaminated soils. Results obtained by multivariate principal component and hierarchical cluster analysis incorporating a large suite of chemical elements were notably effective for elucidating the anthropogenic origin of Hg in the studied soil. The elevated concentrations are most likely related to site-specific point source contamination rather than to the widely documented influences from the vehicular traffic emissions in urban settings. Given the proximity of urban population to the contaminated urban soils, we suggest the implementation of different soil extraction tests with the aim to evaluate the fraction of soil Hg available for absorption by the human body.

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“…Many previously published reports have shown that Cu, Zn, As, Cd and Pb are indicator heavy metals in contaminated soils near highways (Chen et al, 2010;Wang et al, 2012;Yan et al, 2013;Werkenthin et al, 2014). Therefore it was speculated that Cu, Zn, As, Cd and Pb (related to factor 1) were derived from a similar source and might be related to anthropogenic inputs.…”

Section: Interrelationships Among Heavy Metals In Soils Along the Qinmentioning

confidence: 99%

Identification of traffic-related metals and the effects of different environments on their enrichment in roadside soils along the Qinghai–Tibet highway

Zhang

Wang

Zhang

et al. 2015

Science of The Total Environment

135

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• Cr, Zn, Cu, As, Cd, and Pb in soils along the highway are related to the traffic.• There are three distribution patterns of the traffic-related metals in soils.• Regional differences had significant relationship with the enrichment levels.• Cd was the prior metal and the TTH was the key area for soil environment monitoring. The road transportation could affect roadside soils environment detrimentally, including heavy metal enrichment. In order to identify and evaluate the enrichment of heavy metals resulted from road transportation on the Tibetan Plateau, the 11 heavy metals (V, Cr, Co, Ni, Cu, Zn, As, Cd, Rb, Pb and Tl) in the topsoil (0-10 cm depth) from four sites along the Qinghai-Tibet highway were discussed in this study. Our results indicate that heavy metals such as Cr, Cu, Zn, As, Cd and Pb are related to road transportation. The content of most of these heavy metals in roadside soils decreased exponentially with the distance from the road, as did some of the Nemero Synthesis Indexes (PN values). The contamination factor for the traffic-related metals ranged from 0.56 (no pollution) to 5.67 (considerable pollution) and the Nemero Synthesis Indexes of these heavy metals ranged from 0.80 (no pollution) to 4.49 (severe pollution). Cd was of priority concern as it had the highest contamination factor. The highest PN value for these traffic-related heavy metals was found in soils at site TTH (alpine steppe). Although transportation contributed to the high contents of these traffic-related metals in roadside environments, regional differences such as wind and the terrain also had significant relationship with their enrichment in these roadside soils. The roadside distance at which there is a potential risk to livestock and wildlife from the contamination of soils by heavy metals should be determined scientifically along the Qinghai-Tibet highway, based on the different natural environments found in the region. a b s t r a c t a r t i c l e i n f o

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Identification of heavy metal pollutants using multivariate analysis and effects of land uses on their accumulation in urban soils in Beijing, China

Cited by 87 publications

References 18 publications

Comparison on soil carbon stocks between urban and suburban topsoil in Beijing, China

Comparison on soil carbon stocks between urban and suburban topsoil in Beijing, China

Mercury in the Urban Topsoil of Athens, Greece

Identification of traffic-related metals and the effects of different environments on their enrichment in roadside soils along the Qinghai–Tibet highway

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