Occurrence and distribution of persistent perfluoroalkyl substances in the polar region and evaluation of its fate

2014 Fiscal Year Final Research Report

• Project/Area Number: 25740010
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Environmental dynamic analysis
• Research Institution: National Institute of Advanced Industrial Science and Technology
• Principal Investigator: TANIYASU Sachi 独立行政法人産業技術総合研究所, 環境管理技術研究部門, 主任研究員 (00443200)
• Project Period (FY): 2013-04-01 – 2015-03-31
• Keywords: 残留性有機汚染物質 / ペルフルオロアルキル化合物 / 北極海海氷消失 / 環境動態解析

Outline of Final Research Achievements

Environmentally persistent perfluoroalkyl substances (PFASs) have appeared as a new class of global pollutants. These compounds have recently emerged as a priority environmental pollutant due to its widespread finding in biota including both Arctic and Antarctic. However it is not well known about environmental fate of PFASs, especially in the Polar region.
In this study, the seawater and air samples from the Arctic and the Antarctic Ocean were collected and analyzed with newly developed ultra-trace level analysis. In comparison to PFAS concentrations measured eight years ago in the Arctic Ocean, the concentrations in this study were found to be almost same order and the same compositions. On the other hands, PFASs were mixed vertically and dramatically changed in short-term after strong wind event in the Arctic Ocean. It is first observation that PFAS concentrations were changed in the short-term, because of mixing event of seawater.

Free Research Field

環境分析化学