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  • The environmental risk in polluted sediments lie in their mobility and whether they can be made biologically available. Since this depends on the way the metals bond to the sediment particles, the geochemistry and composition must be taken into consideration.
 
  • The BCR-three step sequential extraction method can be useful for making the connection between the metal content and its potential to leach and spread under diffirent conditions, such as reducing or oxidizing.
 
  • The fact that the fractions does not obviously correspond to the anticipated compositional parameter for this study site could point to limitations in the method for that type of fill material sampled.

CONCLUSIONS

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