Essays about: "perfluoroktansulfonat PFOS"

Found 4 essays containing the words perfluoroktansulfonat PFOS.

  1. 1. Groundwater Flow and Transport Modelling of PFASs in Åkersberga

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Worada Boonraksasat; [2019]
    Keywords : Groundwater modelling; contaminant transport; Visual MODFLOW; MODPATH; MT3DMS; PFASs; AFFFs;

    Abstract : Per- and polyfluoroalkyl substances (PFASs) are a group of man-made organic chemicals that have been commercially used since the 1950s in many consumer products, including impregnated textiles, impregnated paper, nonstick products (e.g., Teflon), cleaning agents, and in firefighting foams. READ MORE

  3. 2. Trophic transfer of per- and polyfluoroalkyl substances (PFASs) by glacial relicts in Lake Vättern, Sweden

    University essay from Örebro universitet/Institutionen för naturvetenskap och teknik

    Author : Malin Bergman; [2017]
    Keywords : ;

    Abstract : The aim with the study was to assess if glacial relict amphipods constitute as vectors of transport of per- and polyfluoroalkyl substances (PFASs) in the Arctic char food web in Lake Vättern, Sweden. Sediment, surface water and biota samples were analysed for PFASs using ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS), and stable isotope analysis of δ 13C and δ15N was performed on sediments and biota samples. READ MORE

  4. 3. PFAS in recipient sediment of a military airport

    University essay from Örebro universitet/Institutionen för naturvetenskap och teknik

    Author : Lovisa Johansson Blomér; [2017]
    Keywords : Per- and polyfluoroalkyl substances; PFAS; PFOS; Sediment; Military airport; Per- och polyfluorerade alkylsubstanser; PFAS; PFOS; sediment; militär flygplats;

    Abstract : Per- and polyfluoroalkyl substances, PFASs, are highly fluorinated substances where the carbon chain is fully- or partly fluorinated. A functional group is coupled at the end of the carbon chain which gives PFASs their different properties. READ MORE

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

    University essay from Örebro universitet/Institutionen för naturvetenskap och teknik

    Author : Felicia Fredriksson; [2016]
    Keywords : 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;

    Abstract : 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. READ MORE