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| Muresan Paslaru, Bogdan; Cossa, Daniel; Richard, S; Burban, B. |
| The distribution and speciation of mercury (Hg) in air, rain, and surface waters from the artificial tropical lake of Petit-Saut in French Guiana were investigated during the 2003/04 period. In the air, total gaseous mercury (TGM) at the dam station averaged 12 +/- 2 pmol m(-3) of which > 98% was gaseous elemental mercury (GEM). GEM distribution depicted a day-night cycling with high concentrations (up to 15 pmol m(-3)) at dawn and low concentrations (down to 5 pmol m(-3)) at nightfall. Reactive gaseous mercury (RGM) represented < 1% of the GEM with a mean concentration of 4 3 fmol m(-3). Diel RGM variations were negatively related to GEM. In the rain, the sum of all Hg species in the unfiltered (HgTUNF) averaged 16 +/- 112 pmol L-1. Temporal... |
| Tipo: Text |
Palavras-chave: Fluxes; Speciation; Mercury; Artificial reservoir; Atmosphere. |
| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/2007/publication-3329.pdf |
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