Sökning: "Perfluoroalkylsubstanser PFAS"

Hittade 2 uppsatser innehållade orden Perfluoroalkylsubstanser PFAS.

1. 1. Calibration and Application of Passive Sampling in Drinking Water for Perfluoroalkyl Substances

   Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för geovetenskaper

   Författare :Caroline Persson; [2015]
   Nyckelord :Perfluoroalkyl substances PFASs ; passive sampling; Polar organic compound integrative sampler POCIS ; sampling rate; calibration; application; drinking water; Perfluoroalkylsubstanser PFAS ; passiv provtagning; Polar organic compound integrative sampler POCIS ; provtagningsshastighet; kalibrering; tillämpning;

   Sammanfattning : Perfluoroalkyl substances (PFASs) are global environmental contaminants and a need for monitoring levels has arisen due to their persistency and their ability to bioaccumulate. One relatively novel method of monitoring for both long and short time intervals and generating time-weighted average (TWA) concentrations is passive sampling for which no power, maintenance and supervision is required. LÄS MER

3. 2. Effects of pH and Cation Composition on Sorption of Per- and Polyfluoroalkyl Substances (PFASs) to Soil Particles

   Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för geovetenskaper

   Författare :Malin Ullberg; [2015]
   Nyckelord :Per- and polyfluoroalkyl substances PFASs ; Soil; Partitioning coefficients; Partitioning; sorption; solution chemistry; electrostatic interaction; Visual MINTEQ; Perfluoroalkylsubstanser PFAS ; jord; partitioneringskoefficienter; sorption; lösningske- mi; elektrostatisk interaction; Visual MINTEQ;

   Sammanfattning : Per- and polyfluoroalkyl substances (PFASs) have drawn great attention recently, due to their environmental persistence, potential toxicity and global distribution. PFAS is a large family of substances, characterized by a perflourinated carbon chain and a functional group. LÄS MER