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Long-range atmospheric transport of PAHs, PCBs and PBDEs to the central and eastern Mediterranean and changes of PCB and PBDE congener patterns in summer 2010

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Heil,  Angelika
Atmospheric Chemistry, Max Planck Institute for Chemistry, Max Planck Society;

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Lammel,  Gerhard
Multiphase Chemistry, Max Planck Institute for Chemistry, Max Planck Society;

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Citation

Mulder, M. D., Heil, A., Kukučka, P., Kuta, J., Přibylová, P., Prokeš, R., et al. (2015). Long-range atmospheric transport of PAHs, PCBs and PBDEs to the central and eastern Mediterranean and changes of PCB and PBDE congener patterns in summer 2010. Atmospheric Environment, 111, 51-59. doi:10.1016/j.atmosenv.2015.03.044.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0029-284E-2
Abstract
The central and eastern Mediterranean is a receptor area for persistent organic pollutants (POPs) emitted in western, central and eastern Europe, particularly during summer. Atmospheric concentrations of PCBs, DDXs, PBDEs, penta- and hexachlorobenzene were measured during a ship-borne survey in the summer of 2010. The concentration of PCBs (sum of 7 congeners) was 3.61 (2.08-7.72) pg m(-3), of which 6.7% was associated with the particulate phase. The mean concentration of DDT isoi-ners and their metabolites, DDE and DDD, was 2.60 (0.46-7.60) pg m(-3) (particulate mass fraction theta = 0.097), of penta- and hexachlorobenzene 0.22 (<039-2.80) pg m(-3) and 6.29 (2.48-24.16) pg m(-3), respectively, and of PBDEs (sum of 8 congeners) 7.31 (2.80-19.89) pg m(-3). The air masses studied had been transported mostly across central Europe, some crossing western Europe. The observed changes of PCB congener patterns along transport routes are in agreement with the perception that the reaction with the OH radical is dominating PCB atmospheric lifetime, and indicate an overestimation of the second order gas-phase reaction rate coefficient of PCB:153 with OH by structure-activity relationship. (C) 2015 Elsevier Ltd. All rights reserved.