Elemental mercury concentrations and formation rates in the Scheldt estuary and the North Sea

作者: W Baeyens , M Leermakers

DOI: 10.1016/S0304-4203(97)00102-3

关键词: Scheldt estuaryVolatilisationPositive relationshipWind speedOceanographyEnvironmental sciencePhytoplankton pigmentsSedimentary depositional environmentElemental mercuryNorth sea

摘要: Concentrations of Hg0 in surface waters and atmosphere the Scheldt estuary North Sea are presented their relationship with biological processes is discussed. concentrations range from 0.1 to 0.38 pmol·l−1 winter 0.24 0.65 summer show a positive phytoplankton pigments. In 0.06 0.8 higher coastal stations. Transfer velocities across air–sea interface were calculated using classical shear turbulence model. Volatilization fluxes for Sea. For 226–284 pmol·m−2·d−1 500–701 59–1110 an average windspeed 8.1 m·s−1. These comparable wet dry depositional formation rates necessary balance volatilization vary 0.2 4% d−1.

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