title: [Distribution characteristics of lead in different particle size fractions of surface soil of a lead-acid battery factory contaminated site].
abstract: In this research, six topsoil samples (0-20 cm) were collected in the heavy-metal lead contaminated soil of one lead battery factory in south-west China as research object, which were later divided into seven particle size fractions, and analyzed for the lead concentration as well as the correlation between the lead concentration and the organic matter content. The result showed that five soil samples were contaminated with lead with different pollution levels, and there were two different trends in the changes of lead concentration as of the change of soil particle size. The lead concentration of the three samples from sewage treatment workshop, the workshop A and the workshop B, showed a first declining and then ascending trend with the decreasing particle size. The lead concentration of the soil samples of the packing workshop and the former production workshop A showed a decreasing trend when the particle size decreased. The lead concentration and the organic matter content showed a positive linear correlation (R2 = 0.8232). Soil organic matter has the ability of lead enrichment, and the ability declines with the decreasing particle size. Soil texture may be an important factor for the interaction between soil organic matter and lead distribution.
authors.affiliation: Civil and Environment Engineering Institute, University of Science and Technology Beijing, Beijing 100083, China. yuexi1988@live.com
authors.forename: Xi
authors.initials: X
authors.lastname: Yue
authors.forename: Ti-chang
authors.initials: TC
authors.lastname: Sun
authors.forename: Jin-lou
authors.initials: JL
authors.lastname: Huang
mesh_terms: D002681:China; D007221:Industry; D007854:Lead / Q000032:analysis*; D010316:Particle Size; D012987:Soil / Q000737:chemistry*; D012989:Soil Pollutants / Q000032:analysis*
chemical_list: D012987:Soil; D012989:Soil Pollutants; D007854:Lead