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Ocean Science An interactive open-access journal of the European Geosciences Union
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Volume 10, issue 6 | Copyright
Ocean Sci., 10, 1047-1063, 2014
https://doi.org/10.5194/os-10-1047-2014
© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.

Review article 20 Dec 2014

Review article | 20 Dec 2014

Chemical and physical transformations of mercury in the ocean: a review

N. Batrakova, O. Travnikov, and O. Rozovskaya N. Batrakova et al.
  • Meteorological Synthesizing Centre – East of EMEP, 2nd Roshchinsky proezd, 8/5, 115419 Moscow, Russia

Abstract. Mercury is well known as a dangerous neurotoxin enriched in the environment by human activities. It disperses over the globe, cycling between different environmental media. The ocean plays an important role in the global mercury cycle, acting both as a dispersion medium and as an exposure pathway. In this paper, we review the current knowledge on the major physical and chemical transformations of mercury in the ocean. This review describes the mechanisms and provides a compilation of available rate constants for the major processes in seawater, including oxidation and reduction reactions under light and dark conditions, biotic and abiotic methylation/demethylation, and adsorption by particles. These data could be useful for the development of transport models describing processes undergone by mercury in the ocean.

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