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- Title
Speciation of Cadmium, Lead in Soils as Affected by Metal Loading Quantity and Aging Time.
- Authors
Su, Chen; Qixing, Zhou; Lina, Sun; Tieheng, Sun; Lei, Chao
- Abstract
This article discusses cadmium and lead speciation in the soil of northeast China as affected by the level of metal loading, aging time and the interaction between the two metals. The concentrations of these heavy metals were analyzed using an atomic absorption spectrophotometer. Sequential extraction was developed for fractions defined as SE (water soluble plus exchangeable); WSA (bound to carbonate or weakly specifically adsorbed); OX (bound to Fe or Mn oxides); OM (bound to organic matter) and RES (residual). According to the authors, good linear relationships were obtained between the soluble exchangeable fraction content of metals in soil and the ionic impulsion. Apparently, for longer aging times there is a movement of cadmium and lead to the weakly specifically absorbed and residual fractions.
- Subjects
CHINA; METALS; CHEMICAL speciation; FRACTIONS; AGING; CADMIUM; LEAD; HEAVY metals; SOIL composition; SPECTROPHOTOMETERS
- Publication
Bulletin of Environmental Contamination & Toxicology, 2007, Vol 79, Issue 2, p184
- ISSN
0007-4861
- Publication type
Article
- DOI
10.1007/s00128-007-9154-2