Long-Range transport potential of semivolatile organic chemicals in coupled air-water systems

  • Andreas Beyer
  • Michael Matthies
Research Articles


Ongoing deliberations on the regulation of semivolatile organic chemicals require the assessment of chemical transport in atmospheric and marine systems. The characteristic travel distance was proposed as a measure for the transport potential in air and water. However, the existing definition treats the transport processes separately. It is shown that combined transport in coupled air-ocean systems can accelerate the overall transport into remote regions. Concentration ratios in air and water change with distance from sources depending on the initial concentration ratio and on the difference between the transport velocities. A measure is suggested facilitating the chemical screening with respect to transport potentials in such air-ocean systems. A case study for α and γ-hexachlorocyclohexane shows that the suggested measure qualitatively reveals the transport potentials of these chemicals and exemplifies possible concentration patterns.


Air-ocean systems, coupled atmospheric systems case study characteristic travel distance (CTD) hexachlorocy-clohexane long-range transport marine systems persistent organic pollutants (POPs) POPs remote regions, transport into semivolatile organic compounds (SOCs) SOCs transport in air and water 


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Copyright information

© Ecomed Publishers 2001

Authors and Affiliations

  1. 1.University of OsnabrückInstitute of Environmental Systems ResearchOsnabrückGermany

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