A gel probe equilibrium sampler for measuring arsenic porewater profiles and sorption gradients in sediments: II. Field application to Haiwee Reservoir sediment.

@article{Campbell2008AGP,
  title={A gel probe equilibrium sampler for measuring arsenic porewater profiles and sorption gradients in sediments: II. Field application to Haiwee Reservoir sediment.},
  author={Kate M Campbell and Robert Root and PEGGY A. O'DAY and Janet G Hering},
  journal={Environmental science & technology},
  year={2008},
  volume={42 2},
  pages={504-10}
}
Arsenic (As) geochemistry and sorption behavior were measured in As- and iron (Fe)-rich sediments of Haiwee Reservoir by deploying undoped (clear) polyacrylamide gels and hydrous ferric oxide (HFO)-doped gels in a gel probe equilibrium sampler, which is a novel technique for directly measuring the effects of porewater composition on As adsorption to Fe oxides phases in situ. Arsenic is deposited atthe sedimentsurface as As(V) and is reduced to As(III) in the upper layers of the sediment (0-8 cm… CONTINUE READING

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