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

被引：120

作者：

Uzu, G. ^{[1
]}

Sobanska, S. ^{[2
]}

Aliouane, Y. ^{[1
]}

Pradere, P. ^{[3
]}

Dumat, C. ^{[1
]}

机构：

[1] ENSAT, UPS,INPT, CNRS, UMR 5245,EcoLab, F-31326 Castanet Tolosan, France

[2] Univ Sci & Technol Lille, LASIR, UMR 8516, F-59655 Villeneuve Dascq, France

[3] STCM, Chem Met Treatment Co, F-31200 Toulouse, France

来源：

ENVIRONMENTAL POLLUTION | 2009年 / 157卷 / 04期

关键词：

Lead; PM2.5 and PM10; Soil-lettuce transfer; Phytoavailability; ORGANIC-MATTER; HEAVY-METALS; ELECTRON-MICROSCOPY; PLANT TRANSFER; SOIL; CADMIUM; BIOAVAILABILITY; ACCUMULATION; ZN; PB;

D O I：

10.1016/j.envpol.2008.09.053

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

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 Ph kg(-1)) 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 center dot PbO, alpha-PbO and Pb-0. Morphology investigations revealed that PM2.5 (i.e. Particulate Matter 2.5 composed of particles suspended in air with aerodynamic diameters of 2.5 gm 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. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：1178 / 1185

页数：8

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