Concentration Levels, Compositional Profiles, and Gas-Particle Partitioning of Polybrominated Diphenyl Ethers in the Atmosphere of an Urban City in South China
- 11 January 2006
- journal article
- research article
- Published by American Chemical Society (ACS) in Environmental Science & Technology
- Vol. 40 (4), 1190-1196
- https://doi.org/10.1021/es052123v
Abstract
Air samples were collected in June of 2004 from four sites in the city of Guangzhou, a typical urban center in South China, to determine the levels, compositional profiles, and gas-particle distribution of 11 polybrominated diphenyl ether (PBDE) congeners (BDE-28, -47, -66, -100, -99, -85, -154, -153, -138, -183, and -209). The arithmetic mean atmospheric concentrations of ∑PBDEs (sum of all target PBDE congeners except for BDE-209) in samples from the urban and city background sites were comparable to or slightly higher than those from other places around the world. The arithmetic mean atmospheric concentrations of BDE-209, however, were higher than those in North America and Europe, and similar to the values from Japan. Congener compositions were dominated by BDE-209 in all (>70%) but an industrial site, with an average abundance of 48% for BDE-209. The PBDE patterns were generally similar to that in the technical penta-BDE mixture, Bromkal 70-5DE. Partitioning of PBDEs between the gas and particle phases (Kp) was well correlated with the subcooled liquid vapor pressure (PL°) for all of the samples, but the relationship differed between samples from different sites. The measured fractions of PBDEs in the particulate phase were compared to the predictions from the Junge−Pankow adsorption and KOA-based absorption models. The results indicated that the KOA-based model worked better than the Junge−Pankow model that tended to overestimate the particulate fractions for most PBDE congeners.Keywords
This publication has 20 references indexed in Scilit:
- Passive-Sampler Derived Air Concentrations of Persistent Organic Pollutants on a North−South Transect in ChileEnvironmental Science & Technology, 2004
- Personal air sampling and analysis of polybrominated diphenyl ethers and other bromine containing compounds at an electronic recycling facility in SwedenPublished by Royal Society of Chemistry (RSC) ,2004
- Polybrominated diphenyl ethers (PBDEs), polybrominated dibenzo-p-dioxins/dibenzofurans (PBDD/Fs) and monobromo-polychlorinated dibenzo-p-dioxins/dibenzofurans (MoBPXDD/Fs) in the atmosphere and bulk deposition in Kyoto, JapanChemosphere, 2004
- Preliminary Assessment of U.K. Human Dietary and Inhalation Exposure to Polybrominated Diphenyl EthersEnvironmental Science & Technology, 2004
- Indoor and Outdoor Air Concentrations and Phase Partitioning of Perfluoroalkyl Sulfonamides and Polybrominated Diphenyl EthersEnvironmental Science & Technology, 2004
- Vapor pressures, aqueous solubilities, and Henry's law constants of some brominated flame retardantsEnvironmental Toxicology and Chemistry, 2002
- Measurements of Octanol−Air Partition Coefficients (KOA) for Polybrominated Diphenyl Ethers (PBDEs): Predicting Partitioning in the EnvironmentJournal of Chemical & Engineering Data, 2002
- Melioidosis: An emerging tropical health problemEnvironmental Science & Technology, 2001
- Concentrations and Spatial Variations of Polybrominated Diphenyl Ethers and Other Organohalogen Compounds in Great Lakes AirEnvironmental Science & Technology, 2001
- Vapor Pressures of the Polybrominated Diphenyl EthersJournal of Chemical & Engineering Data, 2000