PBDEs were measured in air and soil across Azerbaijan to establish contemporary concentrations at 13 urban and rural sites. Polyurethane foam passive air samplers (PUF-PAS) were deployed for a period of a month with surface soil samples collected at the same sites. Unlike organochlorine pesticides previously surveyed by our group, PBDE concentrations in both contemporary air and soil were low in comparison to recent European and Asian studies. For example, mean ∑9PBDE concentrations in air and soil were 7.13 ± 1.66 pg m-3 and 168 ± 57 pg g-1, respectively. The fully brominated BDE-209 was the most abundant congener observed in soil (174.8 ± 58.5 pg g-1), comprising ~ 96% of ∑10PBDE. However, the PAS-derived air concentrations for highly brominated congeners must be viewed with caution as there is uncertainty over the uptake rates of particle-bound chemicals using these devices. Some of the highest concentrations in air were observed at sites with the highest wind speeds and at several remote locations in the north of the country and this requires further research. Levels of BDE-47 and 99 (the two most abundant congeners in the widely used penta-formulation) were lower than levels reported elsewhere suggesting limited use/import of the penta-BDE formulation in Azerbaijan.

• Klíčová slova
• Distribution, Flame retardants, Passive air sampler, Sources,
• MeSH
• halogenované difenylethery analýza   MeSH
• látky znečišťující půdu analýza   MeSH
• látky znečišťující vzduch analýza   MeSH
• monitorování životního prostředí MeSH
• pesticidy analýza   MeSH
• polyurethany analýza   MeSH
• půda chemie   MeSH
• Publikační typ
• časopisecké články MeSH
• Geografické názvy
• Ázerbájdžán MeSH
• Názvy látek
• 2,2',4,4'-tetrabromodiphenyl ether MeSH Prohlížeč
• decabromobiphenyl ether MeSH Prohlížeč
• halogenované difenylethery MeSH
• látky znečišťující půdu MeSH
• látky znečišťující vzduch MeSH
• pesticidy MeSH
• polyurethane foam MeSH Prohlížeč
• polyurethany MeSH
• půda MeSH

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, 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°) and the octanol-air partition coefficient (K OA), were investigated. The equilibrium adsorption (P L°-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 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 P L° 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.

• Klíčová slova
• Absorption/adsorption models, Aerosol mass size distribution, Gas/particle partitioning, Long-range transport,
• MeSH
• adsorpce MeSH
• halogenované difenylethery analýza   MeSH
• látky znečišťující vzduch analýza   MeSH
• monitorování životního prostředí * MeSH
• Publikační typ
• časopisecké články MeSH
• Geografické názvy
• Řecko MeSH
• Názvy látek
• halogenované difenylethery MeSH
• látky znečišťující vzduch MeSH