Sökning: "PFOA"

Visar resultat 1 - 5 av 9 uppsatser innehållade ordet PFOA.

  1. 1. Skumanvändning vid räddningstjänsten och dess påverkan på dricksvatten

    Kandidat-uppsats, Lunds universitet/Avdelningen för Brandteknik

    Författare :Cecilia Leman; Elin Persson; [2016]
    Nyckelord :Brandsläckningsskum; AFFF; Bskum; A-skum; Släckmedel; Brandsläckning; Fluortensider; PFOS; PFOA; Skumvätska; PFAS; Skum; Släckskum; Dricksvatten; Miljö; Technology and Engineering;

    Sammanfattning : This report aims to try to minimize the impact on drinking water from the use of firefighting foam. This is done through an extensive study of the situation today and the substance PFAS, which has previously contaminated aquifers. PFAS is a substance that can be found in some firefighting foams. LÄS MER

  2. 2. Miljögiftsförekomster i utter (Lutra lutra) från Småland : Nuvarande status och förändringar över tid (1966-2014)

    Kandidat-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Författare :Helena Lorentzdotter; [2015]
    Nyckelord :Aquatic top-predator; environmental contaminants; environmental indicator; Lutra lutra; Sweden;

    Sammanfattning : The Swedish otter (Lutra lutra) population decreased markedly after the 1950’s and was considered to be seriously threatened for decades. Pollution from industries and other anthropogenic activities were suspected to be the major cause of the decline. LÄS MER

  3. 3. En studie av ett grundvattensystem - Geologiska Institutionens provpumpningsanläggning på P7 i Revingehed

    Kandidat-uppsats, Lunds universitet/Miljövetenskaplig utbildning

    Författare :Emil Engvall; [2015]
    Nyckelord :akvifär; grundvattensystem; grundvattenföroreningar; Revingehed; provpumpningsanläggning; Earth and Environmental Sciences;

    Sammanfattning : In this study, I have examined a groundwater system located close to a military training camp in Revingehed outside Lund, Sweden. The study includes water analyses of substances in two of three aquifers. The study also shows the effects on the groundwater system when a well located in the third aquifer was pumped with 100 l/min during 3 days. LÄS MER

  4. 4. 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

  5. 5. Effect of organic carbon, active carbon, calcium ions and aging on the sorption of per- and polyfluoroalkylated substances (PFASs) to soil

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

    Författare :Erika Schedin; [2013]
    Nyckelord :PFAS; sorption; soil; calcium; active carbon; organic carbon; aging.;

    Sammanfattning : Per- and polyfluoroalkylated substances (PFASs) are a large group of organic chemicals that have gained an increased attention during recent years. Many of the compounds have shown to be persistent, toxic and bioaccumulating and they are found in water, soils, sediments, biota, animals and humans across the globe. LÄS MER

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