Trace element concentrations in schoolyard soils from the port city of Talcahuano, Chile

Tume, Pedro; King, Robert W.; González, Elizabeth; Bustamante, Guillermo; Reverter, Ferrán; Roca, Núria; Bech, Jaume

doi:10.1016/j.gexplo.2014.08.014

Cited by 30 publications

(6 citation statements)

References 45 publications

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“…The mean concentration of Cd in this study was higher than all the mean values shown in Table 2. Meanwhile, Ni reports a mean value similar to the studies conducted in Talcahuano [29], Hualpén [30], and Concepción [31], all coastal cities and communes belonging to the same province of this study and with the presence of industries such as fishing, steelmaking, refineries, and cement, among others. The mean Zn concentration was the lowest among those observed, with a value similar to Concepción.…”

Section: Univariate Data Analysissupporting

confidence: 82%

Distribution of Heavy Metals in the Commune of Coronel, Chile

et al. 2022

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Anthropogenic activities often produce different emanations, some of them excessive, producing contamination of the soil, water, and/or air. This article analyzes soil conditions in Coronel, Chile, a commune with a large industrial presence, identifying the sources emitting potentially toxic elements, the degree of soil contamination, and the carcinogenic and non-carcinogenic risks in the area. Ninety-four samples in the study area were analyzed using different methods. Three factors were identified through a principal component analysis (PCA) that explain 83.27% of the variability of the elements. Four factors were identified through the positive matrix factorization (PMF) model, making it possible to identify the polluting sources according to the pattern of elements they contain. The sources of these factors were then identified. The most common elements in the soil with a particularly high degree of contamination are nickel, vanadium, and chromium, the latter of which being the element that poses the greatest carcinogenic and non-carcinogenic risk to children and adults. Additionally, the highest concentrations of chromium and vanadium were identified near industrial areas of the commune.

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Section: Univariate Data Analysissupporting

confidence: 82%

Distribution of Heavy Metals in the Commune of Coronel, Chile

et al. 2022

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“…Modification such as compaction, varied compositional, organic carbon content, pH alterations, and the presence of inert construction materials and contaminants are commonly observed in urban environments (Craul, 1985;Lehmann and Stahr, 2007). Additionally, urban soils may exhibit varied contamination levels influenced by factors like distance from issuing sources, land use, afforestation, historical development, including pre-existing industrial contamination and other various previous contaminations not recognizable in the current environment (Albanese and Cichella, 2012;Liu et al, 2020;Luo et al, 2012b;Pouyat et al, 2015;Tume et al, 2018aTume et al, , 2014. Furthermore, they provide several ecosystem services in the urban areas (Morel et al, 2005;O'Riordan et al, 2021), including climate regulation (Lal et al, 2021), participation in biogeochemical and biological cycles (Furquim and Almeida, 2021), urban infrastructure support (Pouyat et al, 2020), support in parks, playgrounds and for urban agriculture, among others (Morel et al, 2017;Reis et al, 2014;Vasenev et al, 2018;Wong et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

Pollution assessment and source apportionment of trace elements in Brazilian urban topsoils

Penteado,

Nogarotto,

Costa

et al. 2024

Preprint

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Studying urban soils is an important tool for assessing and identifying sources of pollution in urban centers and better understating their impacts on human health, especially given the intensification of urbanization processes in Brazilian cities. Topsoil samples (0-5cm) were collected from urban parks (Bosque Park and Limeira Park) and unforested places (Prada School and School of Technology – FT) from Limeira City (Brazil) during 2019–2020 to quantify the inorganic composition of urban soils, apply pollution indices, compare the results with reference guidelines values, and identify the main contamination sources using Principal Component Analysis (PCA) and Positive Matrix Factorization Model (PMF). Results showed that all samples presented concentrations of trace elements related to anthropic sources. Cu, Cd, Zn, and Pb concentrations have enriched compared with the upper continental crust values. The FT, Limeira Park, and Prada School had the highest concentrations of Cd, Pb, and Zn, respectively. Bosque Park, in turn, showed the largest Cr, Cu, and Ni concentrations. Distance from issuing sources, the presence of dense vegetation, and the physical and chemical properties of soil (pH, cation exchange capacity – CEC, clay and organic matter percentages) were the main explaining factors for the concentrations found. Overall, the main sources of contamination are related to industries, fertilizers, vehicular exhaust and geogenic sources. Our results suggest that wooded urban parks have greater potential to store toxic elements than unforested places. Moreover, wooded urban parks provide an important ecosystem service in urban areas and should be considered in public policies aimed at promoting sustainable cities.

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“…Trace elements are categorized as hazardous compounds [1], and contamination with these metals significantly affects the quality of the environment and the ecosystem [2]. They can originate in geogenic sources, which are naturally present in the soil, and/or in anthropogenic sources, which are generated by human activity [3][4][5]. Trace elements, especially those of anthropogenic origin and from diffuse sources, can remain for long periods in soil [4,6] because they do not biodegrade [7] and cannot be metabolized by living organisms [8].…”

Section: Introductionmentioning

confidence: 99%

Analysis and Evaluation of Concentrations of Potentially Toxic Elements in Landfills in the Araucanía Region, Chile

Tume,

Cornejo,

Rubio

et al. 2023

Minerals

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This preliminary study focuses on three abandoned sites, located in the communes of Temuco, Villarrica, and Lonquimay, in the Araucanía Region, Chile. Two of the sites were classified as illegal landfills and one was a former landfill. Seventy-three surface samples were taken, of which 32 were from site S1, 20 were from site S2, and 21 were from site S3. The objectives of this study were (1) to establish the background values of trace metals present in soils through different statistical methods, (2) to determine the level of contamination and possible ecological risks in soils, and (3) to assess the health risk posed to children and adults from potentially hazardous elements (As, Ba, Cd, Co, Cr, Cu, Hg, Ni, Pb, V, and Zn). The data analyzed belong to a report presented by Chile’s National Environmental Centre (CENMA). An evaluation was carried out through a multivariate statistical analysis to determine the type of origin and association of the trace elements, and spatial distribution maps were generated to establish the behavior of the contents of heavy metals present in the sites studied. The background values for sites S1, S2, and S3 were obtained by the median + 2MADdian absolute deviation) method. These values varied in the range of 14,702–41,785 mg kg−1 for Al, 0.83–8.9 mg kg−1 for As, 29.2–77.2 mg kg−1 for B, 59.2–143 mg kg−1 for Ba, 10.1–22.8 mg kg−1 for Cd, 18.4–51.2 mg kg−1 for Co, 12.3–38.0 mg kg−1 for Cr, 47.8–76.6 mg kg−1 for Cu, 36,230–64,274 mg kg−1 for Fe, 0.02–0.05 mg kg−1 for Hg, 482–4396 mg kg−1 for Mn, 16.7–19.3 mg kg−1 for Ni, 1.0–17.6 mg kg−1 for Pb, 1.4–28.2 mg kg−1 for Se, 108–258 mg kg−1 for V, and 68.1–145 mg kg−1 for Zn. In terms of ecological risk, the geoaccumulation index (Igeo), enrichment factor (EF), and contamination factor (Cf) values for As and Se at site S1, As at S2, and Pb with As at S3 were the main elements indicating the highest contamination levels, as well as a higher number of samples with contaminated content. The Potential Ecological Risk Index (PERI) revealed that on average, there was a moderate ecological risk for S1 and S2 and a considerable ecological risk for S3; the main contributions were generated by As and Hg in S1 and S2, while, in S3, they were produced by Pb and As. In terms of the risk to human health, the risk was higher in children than in adults, with the ingestion route as the main source of risk. For adults, it was found that there was no likelihood that they would develop any adverse non-carcinogenic or carcinogenic health effects. In contrast, children were found to be more likely to sustain adverse health effects. Regarding the non-carcinogenic risk to children, the Co and As samples at S1, S2, and S3, and the Pb at site S3 showed values exceeding the non-carcinogenic-risk limit. Regarding the carcinogenic risk, all three sites studied had Cd samples that indicated a likelihood of children developing cancer from this heavy metal.

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Trace element concentrations in schoolyard soils from the port city of Talcahuano, Chile

Cited by 30 publications

References 45 publications

Distribution of Heavy Metals in the Commune of Coronel, Chile

Distribution of Heavy Metals in the Commune of Coronel, Chile

Pollution assessment and source apportionment of trace elements in Brazilian urban topsoils

Analysis and Evaluation of Concentrations of Potentially Toxic Elements in Landfills in the Araucanía Region, Chile

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