Sökning: "Perfluoroalkyl substances PFASs"

Visar resultat 21 - 25 av 36 uppsatser innehållade orden Perfluoroalkyl substances PFASs.

  1. 21. Assessment on Groundwater Contamination from a Former Hard Chromium Plating Site in Iggesund

    Kandidat-uppsats, Örebro universitet/Institutionen för naturvetenskap och teknik

    Författare :Isabell Alnehem; [2016]
    Nyckelord :;

    Sammanfattning : Before the persistent and toxicological properties of perfluoroalkyl and polyfluoroalkyl substances (PFASs) were known they were used worldwide. The thermal and chemical stability from the carbon-fluorine bond makes these substances desirable for industrial applications. LÄS MER

  3. 22. Analysis of Per- and Polyfluoroalkyl Substances (PFASs) in African Darter (Anhinga rufa) Eggs along Vaal River, South Africa : Comparison of Homologue and Isomer Profiles

    Kandidat-uppsats, Örebro universitet/Institutionen för naturvetenskap och teknik

    Författare :Felicia Fredriksson; [2016]
    Nyckelord :Per- and polyfluoroalkyl substances PFASs ; Perfluorooctane sulfonate PFOS ; linear and branched isomers; African Darter; Vaal River; bird eggs; Per- och polyfluoralkylerade substanser PFASs ; perfluoroktansulfonat PFOS ; linjära och grenade isomerer; African Darter; Vaal River; fågelägg;

    Sammanfattning : Per- and polyfluoroalkyl substances (PFASs) are a group of toxic and persistent organic compounds. Their properties make them extremely resistant and they have been shown to have bioaccumulation and toxic properties in the environment and also to biomagnify in both aquatic and terrestrial food webs. LÄS MER

  4. 23. Mass flows of per- and polyfluoroalkyl substances (PFASs) in a Swedish wastewater network and treatment plant

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

    Författare :Linda Glimstedt; [2016]
    Nyckelord :per- and polyfluoroalkyl substances; PFAS; 6:2 FTSA; wastewater; wastewater network; wastewater treatment; WWTP; Uppsala; Kungsängsverket; per- och polyfluoroalkylerade substanser; PFAS; 6:2 FTSA; avloppsvatten; ledningsnät; avloppsnät; avloppsvattenrening; reningsverk; Uppsala; Kungsängsverket;

    Sammanfattning : Per- and polyfluoroalkyl substances (PFASs) are man-made substances that hold unique properties. They are not only oil- and water repellants but also very resistant to degradation. Due to these properties, the applications are endless and PFASs can be found in a wide range of industrial applications and commercial products. LÄS MER

  5. 24. Modeling of Perfluoroalkyl Substance Adsorption to an Ion Exchanger using PHREEQC

    Kandidat-uppsats, SLU/Dept. of Aquatic Sciences and Assessment

    Författare :Maria Wålinder; [2016]
    Nyckelord :drinking water; perfluoronated contaminants; ion exchange; modelling; PHREEQC;

    Sammanfattning : Poly- and perfluoroalkyl substances (PFASs) are environmental pollutants used in many products such as outdoor clothing, food packaging, cleaning agents and fire-fighting foam. The substances have been detected in tap water in countries all over the world and pose risks to human health. LÄS MER

  7. 25. Uptake of per- and polyfluoroalkyl substances by plants

    Master-uppsats, SLU/Dept. of Aquatic Sciences and Assessment

    Författare :Laura Gobelius; [2016]
    Nyckelord :phytoremediation; Arlanda Airport; PFASs; groundwater; soil; plant; AFFF; aqueous fire fighting foams;

    Sammanfattning : The extensive use of per- and polyfluoroalkyl substances (PFASs) as surfactants in, for example textiles,cookware and aqueous firefighting foams (AFFFs) during the last decades has resulted in widespread environmental contamination. Due to the persistent and bioaccumulative characteristics of PFASs, they are ubiquitously found in the environment, wildlife and humans. LÄS MER