Evaluation of dissipation gradients of polycyclic aromatic hydrocarbons in rice rhizosphere utilizing a sequential extraction procedure.

@article{Ma2012EvaluationOD,
  title={Evaluation of dissipation gradients of polycyclic aromatic hydrocarbons in rice rhizosphere utilizing a sequential extraction procedure.},
  author={Bin Ma and Jiaojiao Wang and Minmin Xu and Yan He and Haizhen Wang and Laosheng Wu and Jianming Xu},
  journal={Environmental pollution},
  year={2012},
  volume={162},
  pages={413-21}
}
The aim of this study was to evaluate the spatial dissipation gradient of PAHs, including phenanthrene, pyrene, and benzo[a]pyrene, with various bioavailability represented with sequential extraction. Dissipation rates of PAHs in the rhizosphere were greater than those in the bulk soil. The n-butanol extracted fraction showed a general trend of dissipation during phytoremediation. Moreover, the formation of bound PAH residues was inhibited in the rhizosphere. While concerning the PAH toxicity… CONTINUE READING

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