Essays about: "FOSA"

Showing result 1 - 5 of 12 essays containing the word FOSA.

  1. 1. Total oxidizable precursor assay: Applications and limitations. A study on the occurrence of perfluoroalkyl and polyfluoroalkyl substances (PFASs) in Chinese Wastewater Treatment Plants

    University essay from Örebro universitet/Institutionen för naturvetenskap och teknik

    Author : Pontus Larsson; [2020]
    Keywords : ;

    Abstract : Total oxidizable precursor (TOP) assay is an in-lab method which oxidatively converts precursor compounds of poly- and perfluoroalkyl substances (PFASs) into measurable perfluorinated alkyl acids (PFAAs). The method is a very strong tool to semi-quantify PFASs that would otherwise be missed in conventional targeted analysis using liquid chromatography - tandem mass spectrometry (LC-MS/MS). READ MORE

  3. 2. Screening of per- and polyfluoroalkyl substances (PFASs) in drinking water in Sweden

    University essay from SLU/Dept. of Aquatic Sciences and Assessment

    Author : Erik Gunnars; [2020]
    Keywords : PFASs; drinking water; per- and polyfluoroalkyl substances; persistent organic pollutants; PFOA; PFOS;

    Abstract : Worldwide use of per- and polyfluoroalkyl substances (PFASs), both legacy and past, are problematic due to their persistent nature. To date, PFASs are of high concern since they have been found not only in the environment but also in animals, plants and humans. READ MORE

  4. 3. Binding of per- and polyfluoroalkyl substances (PFASs) to organic soil horizons of peat and mor : effect of solution chemistry and soil organic matter composition

    University essay from SLU/Dept. of Soil and Environment

    Author : Jennifer Makselon; [2019]
    Keywords : sorption; electrostatic interactions; isotherms; partitioning coefficient; soil organic matter; cation; PFOS; PFOA; desorption;

    Abstract : The understanding of sorption processes of per- and polyfluoroalkyl substances (PFASs) in soils is important for the determination of their fate and transport in the environment. The sorption behavior of PFASs of varying chain length and hydrophilic headgroup was studied in three organic soils, two peat soils and one mor layer, with differing chemical composition of the soil organic matter (SOM). READ MORE

  5. 4. An assessment of thermal desorption as a remediation technique for per- and polyfluoroalkyl substances (PFASs) in contaminated soil

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Anna-Stina Lind; [2018]
    Keywords : Thermal desorption; per- and polyfluoroalkyl substances; PFASs; PFBA; PFPeA; PFHxA; PFHpA; PFOA; PFNA; PFDA; PFUnDA; PFBS; PFHxS; PFOS; 6:2 FTSA; 8:2 FTSA; FOSA; PCB; PAH; UPLC MS MS; Termisk rening; Per- och polyfluoralkylsubstanser; PFASs; PFBA; PFPeA; PFHxA; PFHpA; PFOA; PFNA; PFDA; PFUnDA; PFBS; PFHxS; PFOS; 6:2 FTSA; 8:2 FTSA; FOSA; PCB; PAH; UPLC MS MS;

    Abstract : Per- and polyfluoroalkyl substances (PFASs) are a diverse group of persistent organic pollutants. PFASs have a wide area of applications such as stain repellent for paper, textile, furniture and industrial products such as aqueous film forming foams (AFFFs) used for firefighting. READ MORE

  6. 5. Microbial binding of per- and polyfluorinated alkyl substances (PFASs) : - Analysis of PFASs in microbes with ultra-performance liquid chromatography – tandem mass spectrometry (UPLC-MS/MS)

    University essay from Örebro universitet/Institutionen för naturvetenskap och teknik

    Author : Karolina Majdak; [2018]
    Keywords : PFASs; microbes; microbial binding; PFOS; PFHxS; AFFFs.;

    Abstract : Per- and polyfluorinated alkyl substances (PFASs) belong to a large group of man-made chemicals that pollute the environment. Perfluorooctane sulfonic acid (PFOS) and perfluorooctanoic acid (PFOA) are the most commonly found PFASs. The pollution of PFASs can be caused among others by using of aqueous fire-fighting foams (AFFFs). READ MORE