Perchlorate on Mars: a chemical hazard and a resource for humans

  title={Perchlorate on Mars: a chemical hazard and a resource for humans},
  author={Alfonso F. Davila and David Willson and John D. Coates and Christopher P. McKay},
  journal={International Journal of Astrobiology},
  pages={321 - 325}
Abstract Perchlorate (ClO4−) is widespread in Martian soils at concentrations between 0.5 and 1%. At such concentrations, perchlorate could be an important source of oxygen, but it could also become a critical chemical hazard to astronauts. In this paper, we review the dual implications of ClO4− on Mars, and propose a biochemical approach for removal of perchlorate from Martian soil that would be energetically cheap, environmentally friendly and could be used to obtain oxygen both for human… 
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