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Water Air & Soil Pollution

, Volume 56, Issue 1, pp 731–744 | Cite as

Modelization of the mercury fluxes at the air-sea interface

  • W. Baeyens
  • M. Leermakers
  • H. Dedeurwaerder
  • P. Lansens
Article

Abstract

Aqueous and atmospheric Hg° concentrations for remote marine areas such as the equatorial Pacific Ocean and for coastal seas such as the North Sea and the Scheldt Estuary are discussed. Biological processes seem to be at the origin of the supersaturated Hg° concentrations in the water. On the other hand, transfer velocities across the air-sea interface were calculated with a classical shear turbulence model and with a wave breaking model. With these data, Hg° fluxes from the sea to the atmosphere were calculated: in the Pacific Ocean they range from 0.43 to 6.5 μg g Hg.m−2. yr−1 at a wind speed of 2.8 m.s−1 and from 10.3 to 156 μg Hg.m−2 yr−1 at a wind speed of 54 m.s−1, but they are still higher when wave breaking is considered (from 11 to 168 μg Hg.m−2.yr−1). These transfer fluxes are an order of magnitude higher in the Scheldt Estuary.

Keywords

Wave Breaking Roughness Element Transfer Velocity Equatorial Pacific Ocean Scheldt Estuary 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Kluwer Academic Publishers 1991

Authors and Affiliations

  • W. Baeyens
    • 1
  • M. Leermakers
    • 1
  • H. Dedeurwaerder
    • 1
  • P. Lansens
    • 1
  1. 1.Analytical Chemistry (ANCH)Vrije Universiteit BrusselBrusselsBelgium

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