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
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...
free text keywords: Atmosphere, Estuary, Reservoir, French Guiana, Methylmercury, Mercury, Atmosphère, Estuaire, Retenue, Guyane française, Methylmercure, Mercure
European Marine Science
27 references, page 1 of 2

Amouroux D, Wasserman JC, Tessier E, Donard OFX. Elemental mercury in the atmosphere of a tropical Amazonian forest (French Guiana). Environ Sci Technol 1999;33:3044 - 8. [OpenAIRE]

Amyot M, Mierle G, Lean DRS, Mcqueen DJ. Sunlight-induced formation of dissolved gaseous mercury in lake waters. Environ Sci Technol 1994;28:2366 - 71. [OpenAIRE]

Amyot M, Gill GA, Morel FMM. Production and loss of dissolved gaseous mercury in coastal seawater. Environ Sci Technol 1997a;31:3606 - 11.

Amyot M, Lean D, Mierle G. Photochemical formation of volatile mercury in high Arctic lakes. Environ Toxicol Chem 1997b; 16:2054 - 63.

Amyot M, Mierle G, Lean D, McQueen DJ. Effect of solar radiation on the formation of dissolved gaseous mercury in temperate lakes. Geochim Cosmochim Acta 1997c;61:975 - 87. [OpenAIRE]

Amyot M, Lean DRS, Poissant L, Doyon MR. Distribution and transformation of elemental mercury in the St Lawrence River and Lake Ontario. Can J Fish Aquat Sci 2000;57: 155 - 63. [OpenAIRE]

Baldi F. Microbial transformation of mercury species and their importance in the biogeochemical cycle of mercury. In: Sigel H, Sigel H, editors. Metal Ions in Biological Systems; 1997. p. 213 - 57.

Barkay T, Liebert C, Gillman M. Environmental significance of the potential for Mer(Tn21)-mediated reduction of Hg 2+ to Hg 0 in natural waters. Appl Environ Microbiol 1989;55: 1196 - 202. [OpenAIRE]

Beucher C, Wong-Wah-Chung P, Richard C, Mailhot G, Bolte M, Cossa D. Dissolved gaseous mercury formation under UV irradiation of unamended tropical waters from French Guyana. Sci Total Environ 2002;290:131 - 8.

Charlet L, Boudou A. Cet or qui file un mauvais mercure. La Recherche 2002;359:52 - 9.

Charlet L, Peretyashko T. Storm recharge of a stratified tropical dam reservoir: the Petit-Saut dam reservoir, French Guyana, South America. Revue de Ge´ographie Alpine 2003;91:93 - 9.

Charlet L, Bosbach D, Peretyashko T. Natural attenuation of TCE, As, Hg linked to the heterogeneous oxidation of Fe(II): an AFM study. Chem Geol 2002;190:303 - 19. [OpenAIRE]

Coquery M, Cossa D. Mercury speciation in surface waters of the North Sea. J Sea Res 1995;34:245 - 57.

Coquery M, Cossa D, Azemard S, Peretyazhko T, Charlet L. Methylmercury formation in the anoxic waters of the PetitSaut reservoir (French Guiana) and its spreading in the adjacent Sinnamary river. J Physique IV 2003;107:327 - 31. [OpenAIRE]

Dumestre JF, Labroue L, Galy-Lacaux C, Reynouard C, Richard S. Biomasses et activites bacteriennes dans la retenue et a l'aval du barrage de Petit-Saut (Guyane): influence sur les emissions de methane et la consommation d'oxygene. Hydroecol Appl 1997; 9:139 - 67.

27 references, page 1 of 2
Powered by OpenAIRE Research Graph
Any information missing or wrong?Report an Issue