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  Long-range atmospheric transport of polycyclic aromatic hydrocarbons is worldwide problem-results from measurements at remote sites and modelling

Lammel, G., Dvorská, A., Klánová, J., Kohoutek, J., Kukučka, P., Prokeš, R., et al. (2015). Long-range atmospheric transport of polycyclic aromatic hydrocarbons is worldwide problem-results from measurements at remote sites and modelling. Acta Chimica Slovenica, 62, 729-735. doi:10.17344/acsi.2015.1387.

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 Urheber:
Lammel, Gerhard1, Autor
Dvorská, A.2, Autor
Klánová, J.2, Autor
Kohoutek, J.2, Autor
Kukučka, P.2, Autor
Prokeš, R.2, Autor
Sehili, A. M.3, Autor           
Affiliations:
1MPI for Chemistry, ou_persistent22              
2External Organizations, ou_persistent22              
3The Land in the Earth System, MPI for Meteorology, Max Planck Society, ou_913551              

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Schlagwörter: Aerosol; Africa; Antarctic; Arctic; Atmospheric modelling; Free troposphere
 Zusammenfassung: Despite the fact that the occurrence of polycyclic aromatic hydrocarbons (PAHs) in the atmospheric environment has been studied for decades the photochemistry, deposition and, consequently, the long-range transport potential (LRTP) are not well understood. The reason is gas-particle partitioning (GPP) in the aerosol, its sensitivity to temperature and particulate phase composition, and sampling artefacts', and reactivity's sensitivities towards particulate phase composition. Furthermore, most PAHs are subject to re-volatilisation upon deposition to surfaces (multihopping). Levels and sources of 2-6-ring unsubstituted PAHs were studied in remote environments of Europe, Africa and Antarctica. Global atmospheric transport and fate of 3-5-ring PAHs were simulated under various scenarios of photochemistry and GPP. GPP influences drastically the atmospheric lifetime, compartmental distributions and the LRTP of PAH. Mid latitude emissions seem to reach the Arctic but not the Antarctic.

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Sprache(n): eng - English
 Datum: 2015
 Publikationsstatus: Erschienen
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 Ort, Verlag, Ausgabe: -
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 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.17344/acsi.2015.1387
 Art des Abschluß: -

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Titel: Acta Chimica Slovenica
Genre der Quelle: Zeitschrift
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Seiten: - Band / Heft: 62 Artikelnummer: - Start- / Endseite: 729 - 735 Identifikator: -