Neutral Poly/Per-Fluoroalkyl Substances in Air from the Atlantic to the Southern Ocean and in Antarctic Snow
Neutral Poly/Per-Fluoroalkyl Substances in Air from the Atlantic to the Southern Ocean and in Antarctic Snow
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DOI：
10.1021/acs.est.5b00920
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发表时间：
2015-07-07
影响因子：
11.4
通讯作者：
Ebinghaus, Ralf
中科院分区：
文献类型：
--
作者：
Wang, Zhen;Xie, Zhiyong;Ebinghaus, Ralf
研究了大西洋上空典型中性多氟烷基物质（PFASs）的海洋尺度分布特征及其在南极半岛的气-雪交换。12种PFASs（Sigma PFASs）在气相中的总浓度范围为2.8 - 68.8 pg m（-3）（平均值：23.5 pg m（-3）），在雪中的浓度范围为125 - 303 pg L-1（平均值：209 pg L-1）。不同季节对Sigma PFASs的特异性化合物差异不显著。与南大西洋相比，北方大西洋上空的Sigma PFAS更高，
The oceanic scale occurrences of typical neutral poly/per-fluoroallcyl substances (PFASs) in the atmosphere across the Atlantic, as well as their air-snow exchange at the Antarctic Peninsula, were investigated. Total concentrations of the 12 PFASs (Sigma PFASs) in gas phase ranged from 2.8 to 68.8 pg m(3) (mean: 23.5 pg m(-3)), and the levels in snow were from 125 to 303 pg L-1 (mean: 209 pg L-1) Fluorotelomer alcohols (FTOHs) were dominant in both air and snow. The differences of specific compounds to Sigma PFASs were not significant between aft and snow. Sigma PFASs were higher above the northern Atlantic compared to the southern Atlantic, and the levels above the southern Atlantic