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DECA: A new model for assessing the foliar uptake of atmospheric lead by vegetation, using Lactuca sativa as an example

Schreck, Eva and Bonnard, Roseline and Laplanche, Christophe and Leveque, Thibaut and Foucault, Yann and Dumat, Camille DECA: A new model for assessing the foliar uptake of atmospheric lead by vegetation, using Lactuca sativa as an example. (2012) Journal of Environmental Management, 112. 233-239. ISSN 0301-4797

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Official URL: http://dx.doi.org/10.1016/j.jenvman.2012.07.006


In the context of peri-urban atmospheric pollution by industrial lead recycling emissions, metal can transfer to plant shoots. Home gardeners consuming their produce can therefore be exposed to metal pollution. The Human Health Risk Assessment Protocol (HHRAP) model from the United States Environmental Protection Agency (US EPA) classically used in risk assessment provides foliar metal uptake predictions for large farms but is not adapted to cultures in kitchen gardens. Thus, this study developed a new model, entitled “DECA”, which includes individually measured parameters and the washing of vegetables before human consumption. Results given by DECA and HHRAP models were compared with experimental measurements of lettuce. The data calculated by the DECA model were highly correlated with the measured values; the HHRAP model overestimates foliar lead uptake. Moreover, strong influences of factor of washing and time-dependent variations of loss coefficient were highlighted. Finally, the DECA model provided important risk assessment data regarding consumption of vegetables from kitchen gardens.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com/science/article/pii/S0301479712003672
HAL Id:hal-00780249
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
French research institutions > Institut National de l'Environnement Industriel et des Risques - INERIS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Other partners > Société de Traitement Chimique des Métaux - STCM (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Laboratory name:
Deposited On:12 Oct 2012 11:08

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