Evaluating natural and anthropogenic inputs on the distribution of potentially toxic elements in urban soil of Valdivia, Chile
| Primer Autor |
Vera, Francisca
|
| Co-autores |
Tardani, Daniele
Alvarez-Amado, Fernanda
Tolorza, Violeta
Lacassie, Juan Pablo
Jullian, Domingo
Sepulveda, Carolina
Sanchez-Alfaro, Pablo
Daniele, Linda
Gutierrez, Leopoldo
|
| Título |
Evaluating natural and anthropogenic inputs on the distribution of potentially toxic elements in urban soil of Valdivia, Chile
|
| Editorial |
SPRINGER
|
| Revista |
ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
|
| Lenguaje |
en
|
| Resumen |
The increasing population in urban areas in the last decades requires an effort to understand the geochemistry of contaminant elements in urban soil. Topsoil plays a crucial role in the exposure of Potentially Toxic Elements (PTEs) to humans through ingestion, dermal contact, and inhalation. In Chile, the last census revealed that 88.6% of people live in cities or towns and only 11.4% in rural areas. This study presents the first systematic geochemical survey of urban soil in the city of Valdivia, in the South of Chile. Topsoil samples (0-10 cm depth) were collected in less disturbed locations within the city at 130 sampling sites using a grid of 0.25 km(2) squares covering a total area of approximately 30 km(2). The concentrations of Al, Fe, Na, Ca, Mg, K, Ti, Be, V, Cr, Mn, Co, Ni, Cu, Zn, As, Mo, Sn, Cd, Se, Pb and Hg were measured. The results showed that high concentrations of Cu, V, Zn and Pb are located mainly in the city's northern area and exceed international soil quality legislation for agricultural use. Data processing comprised plotting of individual spatial distribution maps and the use of a combination of multivariate statistical methods. Hierarchical cluster analysis and principal component analysis identified three element associations. The two element groups V-Al-Ti-Fe-Cr-Co-Mn-Be-Ni and Ca-Na-K-As-Mg are interpreted as a dominant lithological origin related to the most pristine soil conditions in less populated areas. By contrast, the Sn-Pb-Zn-Mo-(Cu-Hg) association presents a significant correlation with urbanization indicators, including vehicular traffic and industrial activities developed since the end of the nineteenth century in Valdivia.
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| Fecha Publicación |
2023
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| Tipo de Recurso |
artículo original
|
| doi |
10.1007/s10653-023-01687-5
|
| Formato Recurso |
PDF
|
| Palabras Claves |
Quality control
Cluster analysis
Principal components
Factor scores maps
Health risk assessment
Vehicular traffic
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| Ubicación del archivo | |
| Categoría OCDE |
Ingeniería
Ciencias Ambientales y Ecología
Salud Pública, Ambiental y Ocupacional
Recursos Hídricos
|
| Materias |
Control de calidad
Análisis de conglomerados
Componentes principales
Mapas de puntuaciones factoriales
Evaluación de riesgos para la salud
Tráfico de vehículos
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| Página de inicio (Recomendado-único) |
7841.0
|
| Página final (Recomendado-único) |
7859
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| Identificador del recurso (Mandatado-único) |
artículo original
|
| Versión del recurso (Recomendado-único) |
versión publicada
|
| Derechos de acceso |
acceso abierto
|
| Access Rights |
acceso abierto
|
| Id de Web of Science |
WOS:001035499700001
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| ISSN |
0269-4042
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| Tipo de ruta |
verde# hibrida
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| Categoría WOS |
Ingeniería
Ciencias Ambientales y Ecología
Salud Pública, Ambiental y Ocupacional
Recursos Hídricos
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| Referencia del Financiador (Mandatado si es aplicable-repetible) |
ANID-FONDECYT 1201219
ANID-FONDECYT 11220777
ANID-FONDECYT 11190864
ANID-FONDAP 15130015
UFRO VRIP20P001
ANID FONDECYT 1201219
ANID FONDECYT 11220777
ANID FONDECYT 11190864
ANID FONDAP 15130015
|
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