Confounding impacts of iron reduction on arsenic retention.

  title={Confounding impacts of iron reduction on arsenic retention.},
  author={Katharine J. Tufano and Scott Fendorf},
  journal={Environmental science & technology},
  volume={42 13},
A transition from oxidizing to reducing conditions has long been implicated to increase aqueous As concentrations, for which reductive dissolution of iron (hydr)oxides is commonly implicated as the primary culprit. Confounding our understanding of processes controlling As retention, however, is that reductive transformation of ferrihydrite has recently been shown to promote As retention rather than release. To resolve the role iron phases have in regulating arsenic concentrations, here we… CONTINUE READING

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