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Title: Polybrominated diphenyl ethers (PBDEs) in background air around the Aegean: implications for phase partitioning and size distribution
Authors: Besis, Athanasios
Lammel, Gerhard
Kukucka, Petr
Samara, Constantini
Sofuoğlu, Aysun
Dumanoğlu, Yetkin
Eleftheriadis, Kostas
Kouvarakis, Giorgos
Sofuoğlu, Sait Cemil
Vassilatou, Vassiliki
Voutsa, Dimitra
Keywords: Adsorption
Aerosol mass size distribution
Long-range transport
Aegean Sea
Polybrominated diphenyl ethers
Issue Date: Dec-2017
Publisher: Springer Verlag
Source: Besis, A., Lammel, G., Kukucka, P., Samara, C., Sofuoğlu, A., Dumanoğlu, Y., Eleftheriadis, K., Kouvarakis, G., Sofuoğlu, S. C., Vassilatou, V., and Voutsa, D. (2017). Polybrominated diphenyl ethers (PBDEs) in background air around the Aegean: implications for phase partitioning and size distribution. Environmental Science and Pollution Research, 24(36), 28102-28120. doi:10.1007/s11356-017-0285-7
Abstract: The occurrence and atmospheric behavior of tri- to deca-polybrominated diphenyl ethers (PBDEs) were investigated during a 2-week campaign concurrently conducted in July 2012 at four background sites around the Aegean Sea. The study focused on the gas/particle (G/P) partitioning at three sites (Ag. Paraskevi/central Greece/suburban, Finokalia/southern Greece/remote coastal, and Urla/Turkey/rural coastal) and on the size distribution at two sites (Neochorouda/northern Greece/rural inland and Finokalia/southern Greece/remote coastal). The lowest mean total (G + P) concentrations of ∑7PBDE (BDE-28, BDE-47, BDE-66, BDE-99, BDE-100, BDE-153, BDE-154) and BDE-209 (0.81 and 0.95 pg m−3, respectively) were found at the remote site Finokalia. Partitioning coefficients, KP, were calculated, and their linear relationships with ambient temperature and the physicochemical properties of the analyzed PBDE congeners, i.e., the subcooled liquid pressure (PL°) and the octanol-air partition coefficient (KOA), were investigated. The equilibrium adsorption (PL°-based) and absorption (KOA-based) models, as well as a steady-state absorption model including an equilibrium and a non-equilibrium term, both being functions of log KOA, were used to predict the fraction Φ of PBDEs associated with the particle phase. The steady-state model proved to be superior to predict G/P partitioning of BDE-209. The distribution of particle-bound PBDEs across size fractions < 0.95, 0.95–1.5, 1.5–3.0, 3.0–7.2, and > 7.2 μm indicated a positive correlation between the mass median aerodynamic diameter and log PL° for the less brominated congeners, whereas a negative correlation was observed for the high brominated congeners. The potential source regions of PBDEs were acknowledged as a combination of long-range transport with short-distance sources.
ISSN: 0944-1344
Appears in Collections:Chemical Engineering / Kimya Mühendisliği
PubMed İndeksli Yayınlar Koleksiyonu / PubMed Indexed Publications Collection
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
Sürdürülebilir Yeşil Kampüs Koleksiyonu / Sustainable Green Campus Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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