登录 | 注册 | 中文  | English  | 用时: 1.75s
元数据
高级检索
首页 > 中国极地考察知识库 > 成果信息库 > 已审查 日本海至北极高纬海域海洋大气中多氟烷基化合物分布

日本海至北极高纬海域海洋大气中多氟烷基化合物分布

【标题】日本海至北极高纬海域海洋大气中多氟烷基化合物分布

【Title】Polyfluorinated compounds in the atmosphere along a cruise pathway from the Japan Sea to the Arctic Ocean

【DOI】10.1016/j.chemosphere.2011.11.010

【作者】 蔡明红; 蔡明刚; 何剑锋

【Author】 Cai Minghong ; Cai Minggang ; He Jianfeng

【期刊】Chemosphere

【Journal】Chemosphere

【期刊年份】2012

【卷】87

【期】9

【关键词】 Polyfluoroalkyl compounds; FTOHs; FTAs; FASE/FASAs; Arctic

【Keywords】 Polyfluoroalkyl compounds; FTOHs; FTAs; FASE/FASAs; Arctic

【摘要】

【Abstract】Neutral polyfluorinated alkyl substances (PFASs) were measured in high-volume air samples collected on board the research vessel Snow Dragon during the 4th Chinese National Arctic Expedition from the Japan Sea to the Arctic Ocean in 2010. Four volatile and semi-volatile PFASs (fluorotelomer alcohols (FTOHs), fluorotelomer acids (FTAs), perfluoroalkyl sulfonamides (FASAs), and sulfonamidoethanols (FASEs)) were analyzed respectively in the gas and particle phases. FTOHs were the dominant PFASs in the gas phase (61–358 pg m−3), followed by FTAs (5.2–47.9 pg m−3), FASEs (1.9–15.0 pg m−3), and FASAs (0.5–2.1 pg m−3). In the particle phase, the dominant PFAS class was FTOHs (1.0–9.9 pg m−3). The particle-associated fraction followed the general trend of FASEs > FASAs > FTOHs. Compared with other atmospheric PFAS measurements, the ranges of concentrations of ∑FTOH in this study were similar to those reported from Toronto, north America (urban), the northeast Atlantic Ocean, and northern Germany. Significant correlations between FASEs in the gas phase and ambient air temperature indicate that cold surfaces such as sea-ice, snowpack, and surface seawater influence atmospheric FASEs.

【基金/项目】 南极埃默里冰架底部百年尺度海洋冰生物学记录与冰/海界面过程研究 ; 极地生态环境监测规范的研究与制定

【下载】 PDF(839.2 KB)