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Study of PCBs and PBDEs in King George Island, Antarctica, using PUF passive air sampling
Abstract Polyurethane foam (PUF)-disk based passive air samplers were deployed in King George Island, Antarctica, during the austral summer of 2009–2010, to investigate levels, distributions and potential sources of polychlorinated biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs) in Antarctic air. The atmospheric levels of ∑ indicator PCBs and ∑14 PBDEs ranged from 1.66 to 6.50 pg m−3 and from 0.67 to 2.98 pg m−3, respectively. PCBs homologue profiles were dominated by di-PCBs, tri-PCBs and tetra-PCBs, whereas BDE-17 and BDE-28 were the predominant congeners of PBDEs, which could be explained by long-range atmospheric transport processes. However, the sampling sites close to the Antarctic research stations showed higher atmospheric concentrations of PCBs and PBDEs than the other sites, reflecting potential local sources from the Antarctic research stations. The non-Aroclor congener PCB-11 was found in all the air samples, with air concentrations of 3.60–31.4 pg m−3 (average 15.2 pg m−3). Comparison between the results derived from PUF-disk passive air sampling and high-volume air sampling validates the feasibility of using the passive air samplers in Antarctic air. To our knowledge, this study is the first employment of PUF-disk based passive air samplers in Antarctic atmosphere.
Highlights ► PUF-based passive air sampling was conducted in King George Island, Antarctica. ► Atmospheric levels of ∑ indicator PCBs ranged from 1.66 to 6.50 pg m−3. ► The air concentrations of ∑ PBDEs ranged from 0.67 to 2.98 pg m−3. ► LRAT and local sources from research stations were suspected as main sources. ► This study demonstrates the feasibility of using PUF samplers in Antarctic air.
Study of PCBs and PBDEs in King George Island, Antarctica, using PUF passive air sampling
Abstract Polyurethane foam (PUF)-disk based passive air samplers were deployed in King George Island, Antarctica, during the austral summer of 2009–2010, to investigate levels, distributions and potential sources of polychlorinated biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs) in Antarctic air. The atmospheric levels of ∑ indicator PCBs and ∑14 PBDEs ranged from 1.66 to 6.50 pg m−3 and from 0.67 to 2.98 pg m−3, respectively. PCBs homologue profiles were dominated by di-PCBs, tri-PCBs and tetra-PCBs, whereas BDE-17 and BDE-28 were the predominant congeners of PBDEs, which could be explained by long-range atmospheric transport processes. However, the sampling sites close to the Antarctic research stations showed higher atmospheric concentrations of PCBs and PBDEs than the other sites, reflecting potential local sources from the Antarctic research stations. The non-Aroclor congener PCB-11 was found in all the air samples, with air concentrations of 3.60–31.4 pg m−3 (average 15.2 pg m−3). Comparison between the results derived from PUF-disk passive air sampling and high-volume air sampling validates the feasibility of using the passive air samplers in Antarctic air. To our knowledge, this study is the first employment of PUF-disk based passive air samplers in Antarctic atmosphere.
Highlights ► PUF-based passive air sampling was conducted in King George Island, Antarctica. ► Atmospheric levels of ∑ indicator PCBs ranged from 1.66 to 6.50 pg m−3. ► The air concentrations of ∑ PBDEs ranged from 0.67 to 2.98 pg m−3. ► LRAT and local sources from research stations were suspected as main sources. ► This study demonstrates the feasibility of using PUF samplers in Antarctic air.
Study of PCBs and PBDEs in King George Island, Antarctica, using PUF passive air sampling
Li, Yingming (author) / Geng, Dawei (author) / Liu, Fubin (author) / Wang, Thanh (author) / Wang, Pu (author) / Zhang, Qinghua (author) / Jiang, Guibin (author)
Atmospheric Environment ; 51 ; 140-145
2012-01-14
6 pages
Article (Journal)
Electronic Resource
English
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