Natural attenuation process via microbial oxidation of arsenic in a high Andean watershed.

@article{Leiva2014NaturalAP,
  title={Natural attenuation process via microbial oxidation of arsenic in a high Andean watershed.},
  author={Eduardo D Leiva and Consuelo d P R{\'a}mila and Ignacio Vargas and Cristian R Escauriaza and Carlos A. Bonilla and Gonzalo E. Pizarro and John M. Regan and Pablo A. Past{\'e}n},
  journal={The Science of the total environment},
  year={2014},
  volume={466-467},
  pages={490-502}
}
Rivers in northern Chile have arsenic (As) concentrations at levels that are toxic for humans and other organisms. Microorganism-mediated redox reactions have a crucial role in the As cycle; the microbial oxidation of As (As(III) to As(V)) is a critical transformation because it favors the immobilization of As in the solid phase. We studied the role of microbial As oxidation for controlling the mobility of As in the extreme environment found in the Chilean Altiplano (i.e., > 4000 meters above… CONTINUE READING

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