Please use this identifier to cite or link to this item:
Title: Soil-plant-animal transfer models to improve soil protection guidelines: a case study from Portugal
Author: Rodrigues, S. M.
Pereira, M. E.
Duarte, A. C.
Römkens, P. F. A. M.
Keywords: Potentially toxic elements
Plant uptake
Food chain
Human exposure
Soil threshold concentrations
Issue Date: Feb-2012
Publisher: Elsevier
Abstract: Food chain models are essential tools to assess risks of soil contamination in view of product quality including fodder crops and animal products. Here we link soil to plant transfer (SPT) models for potentially toxic elements (PTEs) including As, Ba, Cd, Co, Cu, Hg, Ni, Pb, Sb, U and Zn with models describing accumulation in animal organs. Current EU standards for food products and acceptable daily intake levels (ADI) for humans were used as critical limits. The combined model is used to assess the impact of soil contamination on animal health, product quality and human health using data from 100 arable fields. Results indicate that 42 existing arable fields near industrial and mining sites are unsuitable for animal grazing in view of food safety due to elevated intake of Cd, Cu, Hg and Pb by cows and sheep. At 10 sites daily intake levels of As by cows exceeded threshold concentrations regarding the quality of animal products. The food chain model also was used inversely to derive soil threshold concentrations in view of EU fodder standards. Calculated threshold levels in soil for As, Cd, Cu, Pb, Hg and Zn appear to be in line with those proposed or used in other EU countries. As such the approach applied here can form a conceptual basis for a more harmonized risk assessment strategy regarding the protection of animal and human health.
Peer review: yes
DOI: 10.1016/j.envint.2011.09.005
ISSN: 0160-4120
Appears in Collections:CESAM - Artigos
DQ - Artigos

Files in This Item:
File Description SizeFormat 
Rodrigues et al. - 2012 - Soil-plant-animal transfer models to improve soil .pdf767.55 kBAdobe PDFView/Open

Formato BibTex MendeleyEndnote Degois 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.