Iron-induced hydroxyl radical generation from basaltic volcanic ash

@inproceedings{Horwell2007IroninducedHR,
  title={Iron-induced hydroxyl radical generation from basaltic volcanic ash},
  author={Claire J Horwell and Ivana Fenoglio and Bice Fubini},
  year={2007}
}
Abstract Iron-induced hydroxyl radical generation from the surface of volcanic ash particles is a possible mechanism of respiratory toxicity in addition to crystalline silica induced pathogenicity. Here we show that volcanic ash generates hydroxyl radicals, with greater reactivity in iron-rich, silica-poor samples, such as basaltic ash. Basaltic particles expose at the surface high levels of poorly-coordinated iron ions in both Fe(II) and Fe(III) oxidation states which are likely to be the… CONTINUE READING

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Deposited in DRO : 04 July 2018 Version of attached le : Peer-review status of attached

Claire J. Horwellb, Andrew Apsleya, +3 authors Karen S. Galeaa
  • 2018
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CITES BACKGROUND
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The iron-catalysed surface reactivity and health-pertinent physical characteristics of explosive volcanic ash from Mt. Etna, Italy

C. J. Horwell, Percy Sargent, +5 authors B. Fubini
  • Journal of Applied Volcanology
  • 2017
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CITES BACKGROUND, METHODS & RESULTS
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