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Study of lead phytoavailability for atmospheric industrial micronic and sub-micronic particles in relation with lead speciation

Uzu, Gaëlle and Sobanska, Sophie and Aliouane, Y. and Pradère, Philippe and Dumat, Camille Study of lead phytoavailability for atmospheric industrial micronic and sub-micronic particles in relation with lead speciation. (2009) Environmental Pollution, vol. 157 (n° 4). pp. 1178-1185. ISSN 0269-7491

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Official URL: http://dx.doi.org/10.1016/j.envpol.2008.09.053

Abstract

Particles from channelled emissions of a battery recycling facility were size-segregated and investigated to correlate their speciation and morphology with their transfer towards lettuce. Microculture experiments carried out with various calcareous soils spiked with micronic and sub-micronic particles (1650 20 mg Pb kg1) highlighted a greater transfer in soils mixed with the finest particles. According to XRD and Raman spectroscopy results, the two fractions presented differences in the amount of minor lead compounds like carbonates, but their speciation was quite similar, in decreasing order of abundance: PbS, PbSO4, PbSO4$PbO, a-PbO and Pb0. Morphology investigations revealed that PM2.5 (i.e. Particulate Matter 2.5 composed of particles suspended in air with aerodynamic diameters of 2.5 mm or less) contained many Pb nanoballs and nanocrystals which could influence lead availability. The soil– plant transfer of lead was mainly influenced by size and was very well estimated by 0.01 M CaCl2 extraction

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com The original PDF of the article can be found at Environmental Pollution website : http://www.sciencedirect.com/science/journal/02697491
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution: Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
Other partners > Société de Traitement Chimique des Métaux - STCM (FRANCE)
French research institutions > Centre National de la Recherche Scientifique - CNRS
Other partners > Université des Sciences et Technologies de Lille - USTL (FRANCE)
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Deposited By: Florence Amor

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