Study of PCBs and PBDEs in King George Island, Antarctica, using PUF passive air sampling

详细信息	查看全文 | 推荐本文 |

• 作者：Yingming Li^a ; Dawei Geng^a ; ^b ; Fubin Liu^c ; Thanh Wang^a ; Pu Wang^a ; Qinghua Zhang^a ; ^{qhzhang@rcees.ac.cn} ; Guibin Jiang^a
• 关键词：Antarctica ; PUF-disk passive air sampling ; PCBs ; PBDEs ; PCB-11
• 刊名：Atmospheric Environment
• 出版年：2012
• 期刊代码：11_13522310
• 类别：env
• 出版时间：May, 2012
• 卷：51
• 期：Complete
• 页码：140-145
• 文件大小：314 K

摘要

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 鈭?indicator PCBs and 鈭?sub>14 PBDEs ranged from 1.66 to 6.50聽pg聽m^鈭? and from 0.67 to 2.98聽pg聽m^鈭?, 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聽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聽pg聽m^鈭? (average 15.2聽pg聽m^鈭?). 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.