publication . Other literature type . 2006

Géochimie du mercure dans le continuum de la retenue de Petit-Saut et de l'estuaire du Sinnamary, Guyane française

Muresan Paslaru, Bogdan;
Open Access French
  • Published: 15 Jun 2006
  • Publisher: Université Bordeaux 1
  • Country: France
Abstract
The mercury cycle was explored in the Petit-Saut reservoir / Sinnamary Estuary continuum in French Guiana. Main processes involve (i) photo-induced reduction, (ii) adsorption and desorption at the particle surfaces, (iii) methylating bacterial activity, (iv) precipitation and dissolution of iron oxyhydroxides and sulfides. Sources of mercury to the Petit-Saut reservoir consist of the partly impacted river-tributaries, the atmospheric deposition and the flooded soils or vegetation. Once into the reservoir, divalent mercury undergoes a large spectrum of transformations including speciation and phase changes. We, here, probe these processes and demonstrate that the...
Subjects
free text keywords: Atmosphere, Estuary, Reservoir, French Guiana, Methylmercury, Mercury, Atmosphère, Estuaire, Retenue, Guyane française, Methylmercure, Mercure
Communities
EuroMarine
European Marine Science
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