Metal associations in soils before and after EDTA extractive decontamination: implications for the effectiveness of further clean-up procedures.

@article{Barona2001MetalAI,
  title={Metal associations in soils before and after EDTA extractive decontamination: implications for the effectiveness of further clean-up procedures.},
  author={Astrid Barona and I Aranguiz and Ana Elias},
  journal={Environmental pollution},
  year={2001},
  volume={113 1},
  pages={79-85}
}
The distribution of Pb, Ni and Zn in two contaminated soils was determined before and after treating the soils with an EDTA solution. After the EDTA extraction, the proportion of Pb accumulated in the acid-extractable fraction considerably increased, which was related to the greater degree of metal extraction from the other fractions. EDTA was also able to extract certain amounts of Pb, Zn and Ni from the silicate matrix, which implied that these extractable amounts were not so strongly fixed… CONTINUE READING

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