Bioaccessibility of metals and human health risk assessment in community urban gardens

Miguel García, Eduardo de and Izquierdo, Miguel and Ortega, Marcelo F. and Mingot Marcilla, Juan (2015). Bioaccessibility of metals and human health risk assessment in community urban gardens. "Chemosphere", v. 135 (n. null); pp. 312-318. ISSN 0045-6535. https://doi.org/10.1016/j.chemosphere.2015.04.079.

Description

Title: Bioaccessibility of metals and human health risk assessment in community urban gardens
Author/s:
  • Miguel García, Eduardo de
  • Izquierdo, Miguel
  • Ortega, Marcelo F.
  • Mingot Marcilla, Juan
Item Type: Article
Título de Revista/Publicación: Chemosphere
Date: 2015
Volume: 135
Subjects:
Faculty: E.T.S.I. de Minas y Energía (UPM)
Department: Energía y Combustibles
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Pseudo-total (i.e. aqua regia extractable) and gastric-bioaccessible (i.e. glycine + HCl extractable) concentrations of Ca, Co, Cr, Cu, Fe, Mn, Ni, Pb and Zn were determined in a total of 48 samples collected from six community urban gardens of different characteristics in the city of Madrid (Spain). Calcium carbonate appears to be the soil property that determines the bioaccessibility of a majority of those elements, and the lack of influence of organic matter, pH and texture can be explained by their low levels in the samples (organic matter) or their narrow range of variation (pH and texture). A conservative risk assessment with bioaccessible concentrations in two scenarios, i.e. adult urban farmers and children playing in urban gardens, revealed acceptable levels of risk, but with large differences between urban gardens depending on their history of land use and their proximity to busy areas in the city center. Only in a worst-case scenario in which children who use urban gardens as recreational areas also eat the produce grown in them would the risk exceed the limits of acceptability

More information

Item ID: 35255
DC Identifier: http://oa.upm.es/35255/
OAI Identifier: oai:oa.upm.es:35255
DOI: 10.1016/j.chemosphere.2015.04.079
Official URL: http://www.sciencedirect.com/science/article/pii/S0045653515004257
Deposited by: Memoria Investigacion
Deposited on: 19 May 2015 07:24
Last Modified: 19 May 2015 07:24
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