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Metales potencialmente tóxicos en suelos urbanos de Sevilla: relaciones entre los contenidos en suelos y en herbáceas, y distribución espacial.

Authors: Madrid, Luis; Díaz Barrientos, Encarnación; Madrid Díaz, Fernando;

Metales potencialmente tóxicos en suelos urbanos de Sevilla: relaciones entre los contenidos en suelos y en herbáceas, y distribución espacial.

Abstract

[ES] La mayoría de los suelos en áreas urbanas cumplen funciones diferentes de la tradicional en zonas rurales como medio de producción de alimentos. Son evidentes en suelos urbanos su función estética y recreativa en parques y jardines públicos y su contribución a preservar la biodiversidad. Por otra parte, en áreas urbanas el suelo tiene una influencia directa sobre la salud de los ciudadanos frecuentemente olvidada o considerada como poco significativa. Esta tendencia a minimizar la importancia de los suelos urbanos en la salud humana es, en parte, la causa de que sólo algunos países incluyan en sus normativas medioambientales límites máximos específicos en los contenidos de metales potencialmente tóxicos (MPT) para suelos de áreas residenciales y de esparcimiento, y en la mayoría de los países se establecen valores umbral o indicativos para suelos en general, sin especificar uso. Sin embargo, los suelos urbanos están expuestos a aportaciones muy significativas de contaminantes diversos procedentes del tráfico, actividades industriales, desechos, etc., y su substrato está frecuentemente mezclado con materiales antropogénicos que modifican sus propiedades (Bullock y Gregory, 1991).

[EN] The function of urban soils is often different from the traditional use in agricultural areas, and is often of an ornamental and recreational character. For that reason is often forgotten or disregarded as non-significant that urban soil has a direct influence on human health. However, urban soils receive significant inputs of pollutants from human activities, which can enter organisms as airborne dust, by direct contact and even through ingestion. Therefore it is necessary to check urban soil quality concerning the contents of pollutants and their availability. Urban soils of Sevilla were sampled in 154 sites, 85 of which were covered by grasses. Soils were characterized and analysed for their contents of potentially toxic metals (PTM), both by aqua regia digestion (pseudo-totals) and by extraction with 0.05 M EDTA (available fraction). Grass samples were also analysed for PTM contents.

9 páginas, 4 tablas, 25 referencias.-- Aparece publicado en el Capítulo 2: contaminación y recuperación de suelos.-- Trabajo presentado con motivo del II congreso Ibérico de la Ciencia del Suelo que tuvo lugar en Huelva (España) del 13-17, junio, 2006, como parte de la actividad científica de la Sociedad Española de la Ciencia del Suelo (SPCS) y la Sociedade Portuguesa da Ciência do Solo (SPCS).

La celebración del II Congreso Ibérico de la Ciencia del Suelo ha sido cofinanciada por el Ministerio de Educación y Ciencia y la Unión Europea (Fondos FEDER) por medio de la Acción Complementaria CTM2006-26230-E.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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