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  The significance of the grasshopper effect on the atmospheric distribution of persistent organic substances

Semeena, V. S., & Lammel, G. (2005). The significance of the grasshopper effect on the atmospheric distribution of persistent organic substances. Geophysical Research Letters, 32(7): L07804. doi:10.1029/2004GL022229,.

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GRL_32-L07804.pdf (Verlagsversion), 185KB
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 Urheber:
Semeena, V. S.1, Autor           
Lammel, Gerhard1, Autor           
Affiliations:
1Climate Processes, MPI for Meteorology, Max Planck Society, ou_913551              

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Schlagwörter: 0305 Atmospheric Composition and Structure: Aerosols and particles (0345, 4801, 4906); 0312 Atmospheric Composition and Structure: Air/sea constituent fluxes (3339, 4504); 0365 Atmospheric Composition and Structure: Troposphere: composition and chemistry; 0368 Atmospheric Composition and Structure: Troposphere: constituent transport and chemistry.
 Zusammenfassung: Slowly degradable, semivolatile organic compounds (SOCs) may undergo more than one volatilization-transport-deposition cycle through the atmosphere (multi-hopping). The significance of this process for the potential for long-range transport (LRT) is addressed for the first time. We use a multicompartment model which in turn is based on a general circulation model. The results suggest that both transport by single-hopping and multi-hopping contribute significantly to LRT of DDT and γ-HCH (lindane) and to accumulation in high latitudes. A larger fraction of the molecules transported by multi-hopping than of the molecules transported by single-hopping is deposited to the world's oceans. Multi-hopping prevails in the boundary layer far from the source regions. However, single-hopping contributes an almost equal amount to the deposition of DDT and γ-HCH in the Arctic.

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Sprache(n): eng - English
 Datum: 2005-04-05
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: eDoc: 256483
ISI: 000228376100005
DOI: 10.1029/2004GL022229,
 Art des Abschluß: -

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Titel: Geophysical Research Letters
  Alternativer Titel : Geophys. Res. Lett.
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 32 (7) Artikelnummer: L07804 Start- / Endseite: - Identifikator: ISSN: 0094-8276