2017
Polybrominated diphenyl ethers (PBDEs) in background air around the Aegean: implications for phase partitioning and size distribution
BESIS, Athanasios, Gerhard LAMMEL, Petr KUKUČKA, Constantini SAMARA, Aysun SOFUOGLU et. al.Základní údaje
Originální název
Polybrominated diphenyl ethers (PBDEs) in background air around the Aegean: implications for phase partitioning and size distribution
Autoři
BESIS, Athanasios (300 Řecko), Gerhard LAMMEL (276 Německo, garant, domácí), Petr KUKUČKA (203 Česká republika, domácí), Constantini SAMARA (300 Řecko), Aysun SOFUOGLU (792 Turecko), Yetkin DUMANOGLU (792 Turecko), Kostas ELEFTHERIADIS (300 Řecko), Giorgos KOUVARAKIS (300 Řecko), Sait C. SOFUOGLU (792 Turecko), Vassiliki VASSILATOU (300 Řecko) a Dimitra VOUTSA (300 Řecko)
Vydání
Environmental Science and Pollution Research, HEIDELBERG, SPRINGER HEIDELBERG, 2017, 0944-1344
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10511 Environmental sciences
Stát vydavatele
Německo
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 2.800
Kód RIV
RIV/00216224:14310/17:00095521
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000417874400046
Klíčová slova anglicky
Absorption/adsorption models; Gas/particle partitioning; Long-range transport; Aerosol mass size distribution
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 10. 4. 2018 17:42, Ing. Nicole Zrilić
Anotace
V originále
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 a(7)PBDE (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, K (P), were calculated, and their linear relationships with ambient temperature and the physicochemical properties of the analyzed PBDE congeners, i.e., the subcooled liquid pressure (P (L)A degrees) and the octanol-air partition coefficient (K (OA)), were investigated. The equilibrium adsorption (P (L)A degrees-based) and absorption (K (OA)-based) models, as well as a steady-state absorption model including an equilibrium and a non-equilibrium term, both being functions of log K (OA), were used to predict the fraction I broken vertical bar 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 mu m indicated a positive correlation between the mass median aerodynamic diameter and log P (L)A degrees 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.
Návaznosti
GAP503/11/1230, projekt VaV |
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LM2015051, projekt VaV |
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LO1214, projekt VaV |
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