The concentrations and congener-specific profiles of polybrominated diphenyl ethers (PBDEs) were investigated in the atmosphere, soil and moss samples were collected from Ny-Ålesund, Svalbard in the Arctic and King Georgia Island (KGI), Fildes Peninsula in Antarctica, respectively. The congener profiles of PBDEs were symmetrical between gas and moss, as well as between particles and soil at Ny-Ålesund and KGI, respectively, similar to a "mirror image". The proportions of highly brominated congeners (for example, BDE-99, -153 and -183) in the particle phase and soil were higher than those in the gas phase and moss, while tri- and tetra-BDEs possessed higher proportions in the gas phase and moss at both sites. The slopes of log-log linear correlations between the gas-particle partition coefficient (K) and sub-cooled liquid vapor pressures (p) of PBDEs were observed at both sites compared with the values in the urban areas. Moreover, the slopes of logK vs. logp (-0.51 at Ny-Ålesund and - 0.29 at KGI) were notably close to the slopes of log-log linear correlations between the dimensionless soil-moss quotient (Q) and p (-0.42 at Ny-Ålesund and -0.22 at KGI). Significant correlations between particle fraction (φ) and soil fraction (φ) at both sites indicated that the gas-particle partitioning of PBDEs is directly related to their distribution in moss and soil.
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http://dx.doi.org/10.1016/j.scitotenv.2018.11.452 | DOI Listing |
Environ Toxicol Chem
January 2025
Department of Environmental Engineering, Faculty of Engineering, Bursa Uludag University, 16059 Nilüfer/Bursa-Türkiye.
This study evaluates atmospheric polycyclic aromatic hydrocarbon (PAH) concentrations in a semi-urban area, Görükle, Turkey, from June 2021 to February 2022. The average concentration of ∑16 PAHs was 24.85 ± 19.
View Article and Find Full Text PDFEnviron Sci Technol
January 2025
Key Laboratory of Geographic Information Science (Ministry of Education), School of Geographic Sciences, East China Normal University, Shanghai 200241, China.
Mercury (Hg) is a neurotoxic pollutant that is ubiquitous on the planet and receives global concern because of its adverse health effects. Particle-bound Hg formation in the atmosphere stems mainly from the adsorption of reactive gaseous Hg on aerosol particles, particularly sea salt aerosol. However, the observed comparable abundance of Hg over Hg in the marine atmosphere has not been reproduced by traditional statistics-based schemes, which were constructed by continental observations.
View Article and Find Full Text PDFJ Hazard Mater
December 2024
Leibniz Institute for Tropospheric Research (TROPOS), Leipzig 04318, Germany. Electronic address:
Particle-bound mercury (PBM) concentrations in particulate matter (PM), PM10 and PM2.5, were investigated during dust and non-dust events at urban and rural sites in Cabo Verde, Africa. During dust events, PBM averaged 35.
View Article and Find Full Text PDFEnviron Sci Process Impacts
January 2025
Marine College, Shandong University, Weihai 264209, China.
Gas/particle (G/P) partitioning is a core process governing the atmospheric transport of organophosphate flame retardants (OPFRs). However, accurately predicting the G/P partition performance of OPFRs remains a challenge. In this study, four independent models were employed to estimate the characteristics of OPFR G/P partitioning within the octanol-air partition coefficient range of 4.
View Article and Find Full Text PDFEnviron Pollut
December 2024
Environment Research Institute, Shandong University, Qingdao, 266237, China.
The consumption of organophosphorus flame retardants (OPFRs) has surged significantly recent years since global banning of brominated flame retardants (BFRs). Industrial activity is an important source of OPFRs, however there are few studies on OPFRs contamination in the indoor and outdoor atmosphere of industrial areas. A study was conducted to analyze contamination of 15 OPFRs individuals in both indoor and outdoor air and PM of living and industrial sites of the petrochemical industrial area (outdoor and indoor sites of living area was LO and LI, outdoor and indoor sites of industrial area was IO and II).
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