Production of hydrogen peroxide in Martian and lunar soils

Hurowitz, J. A. and Tosca, N. J. and McLennan, S. M. and Schoonen, M. A. A. (2007) Production of hydrogen peroxide in Martian and lunar soils. Earth and Planetary Science Letters, 255 (1-2). pp. 41-52.

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Abstract

Freshly ground basaltic minerals produce sufficient quantities of hydrogen peroxide (H2O2) when immersed in solution to explain the oxidizing characteristics of Martian soil samples collected by the Viking landers. H2O2 production occurs as a result of reactions between water and defects at the surface of mechanically pulverized minerals, analogous to carcinogenic quartz dusts. Our results also indicate that dehydroxylation of mineral surfaces results in increased H2O2 production, a highly relevant finding for dusts on the airless surface of the Moon. Reactive, pulverized minerals are important on planetary bodies where impact processes have generated fine-grained basaltic dusts, and may pose a significant health risk to astronauts visiting planetary surfaces where impacts have generated such materials. B) 2006 Elsevier B.V. All rights reserved.

Item Type: Article
Subjects: 01 - Climate Change and Earth-Ocean Atmosphere Systems
Divisions: 01 - Climate Change and Earth-Ocean Atmosphere Systems
Journal or Publication Title: Earth and Planetary Science Letters
Volume: 255
Page Range: pp. 41-52
Depositing User: Sarah Humbert
Date Deposited: 17 Dec 2009 12:55
Last Modified: 23 Jul 2013 09:56
URI: http://eprints.esc.cam.ac.uk/id/eprint/1239

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