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Occurrence, gas–particle partitioning, and sources of polybrominated diphenyl ethers in the atmosphere over the Yangtze River Estuary, East China Sea
To investigate the occurrence, gas–particle partitioning, and potential sources of polybrominated diphenyl ethers (PBDEs) in the atmosphere over the Yangtze River Estuary, gas and particle samples were collected at the remote Huaniao Island, East China Sea, during a whole year from 2013 to 2014. Nin...
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| Published in: | The Science of the total environment 2019-11, Vol.693, p.133538-133538, Article 133538 |
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| Main Authors: | , , , , , |
| Format: | Article |
| Language: | English |
| Subjects: | |
| Citations: | Items that this one cites Items that cite this one |
| Online Access: | Get full text |
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| Summary: | To investigate the occurrence, gas–particle partitioning, and potential sources of polybrominated diphenyl ethers (PBDEs) in the atmosphere over the Yangtze River Estuary, gas and particle samples were collected at the remote Huaniao Island, East China Sea, during a whole year from 2013 to 2014. Nine PBDEs, with total atmospheric concentration of Σ9BDEs of 20.3 ± 26.5 pg/m3, were found in both the gas and particle phases in most samples. BDE-209 dominated both the gas and particle phases, which is consistent with the PBDE usage record in China. Seasonal variation of particle-phase Σ9BDEs was observed, with the highest concentration in winter and the lowest in summer; however, a reversed seasonal trend was observed in the gas phase. Correlation analysis between log Kp and log KOA suggested that the gas–particle (G/P) partitioning was in a non-equilibrium state, particularly for BDE-209 throughout the year. The KOA-based adsorption model prediction performed relatively well for the particle-phase fraction of Br |
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| ISSN: | 0048-9697 1879-1026 |
| DOI: | 10.1016/j.scitotenv.2019.07.344 |