Assessing the potential contributions of additional retention processes to PFAS retardation in the subsurface
作者: Mark L. Brusseau
作者单位: 1429 Shantz Bldg, Soil, Water and Environmental Science Department, Hydrology and Atmospheric Sciences Department, School of Earth and Environmental Sciences, University of Arizona, United States
刊名: Science of the Total Environment, 2018, Vol.613-614 , pp.176-185
来源数据库: Elsevier Journal
DOI: 10.1016/j.scitotenv.2017.09.065
关键词: PerfluoroalkylPFOSPFOARetardationPartitioningAir-water interfaceNAPL-water interface
英文摘要: Abstract(#br)A comprehensive understanding of the transport and fate of per- and poly-fluoroalkyl substances (PFAS) in the subsurface is critical for accurate risk assessments and design of effective remedial actions. A multi-process retention model is proposed to account for potential additional sources of retardation for PFAS transport in source zones. These include partitioning to the soil atmosphere, adsorption at air-water interfaces, partitioning to trapped organic liquids (NAPL), and adsorption at NAPL-water interfaces. An initial assessment of the relative magnitudes and significance of these retention processes was conducted for two PFAS of primary concern, perfluorooctanesulfonic acid (PFOS) and perfluorooctanoic acid (PFOA), and an example precursor (fluorotelomer alcohol,...
全文获取路径: Elsevier  (合作)
影响因子:3.258 (2012)

  • retention 保留
  • retardation 减速
  • water 
  • potential 
  • additional 追加的
  • subsurface 次表层的
  • interface 界面