抄録
Per- and polyfluoroalkyl substances （PFAS） represent one of the most critical concerns under the Stockholm Convention on Persistent Organic Pollutants, and numerous research have reported their detection in the environment. To understand the pollution levels, it is required to analyze PFAS in various media, such as water, air, and soil. With regard to air, PFAS in the atmosphere plays an important role in long-range transport and their transformation, and it is considered to need comprehensive analysis of PFAS in the air. The air sampler named “FM 4” has been developed in order to enable simultaneous collection of PFAS in particle phase and gas phase. FM 4 is composed of quartz fiber filters （QFF）, polyurethane foam （PUF） and activated carbon fiber disk （GAIAC®）. GAIAC® has been developed newly to achieve satisfactory recoveries of neutral PFAS （e.g. fluorotelomer alcohols）. A new method using FM 4 and GAIAC® enables multiple analysis of ionic PFAS and neutral PFAS. If the regulation of PFAS in the air is established in the future, analysis and removal would likely be required more. FM 4 and GAIAC® are expected to contribute to development of removal technology of PFAS in the air as it needs analytical technology.
