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Dissertations / Theses on the topic 'PFAS'

Author: Grafiati
Published: 4 June 2021
Last updated: 25 July 2025

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1

Johansson, Blomér Lovisa. "PFAS in recipient sediment of a military airport." Thesis, Örebro universitet, Institutionen för naturvetenskap och teknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-62558.

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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. PFASs have been used in aqueous film forming foams (AFFFs) to decrease the surface tension of water and form a film on the fuel surfaces. AFFF is one of the main sources of PFASs pollution in the environment. A previous study has shown high PFASs concentrations in surface water in Lake Vänern. This study has analysed PFASs in sediment samples. The main dete
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2

Lindblom, Karin. "PFAS in Gullspångsälvens catchment area." Thesis, Örebro universitet, Institutionen för naturvetenskap och teknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-64608.

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Gullspångsälvens catchment area starts in the county of Dalarna and ends in the lake Vänern. On the way the water passes a couple of villages and small towns. The aim of the project is to identify point sources of PFAS and see their influence on the PFAS levels in the systems surface water. In the area some point sources have been identified. The villages and towns have waste water treatment plants and there are also a couple of landfills. Sampling have been carried out at expected point sources as well as in the surface water close to human activities. The samples have been extracted with SPE
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3

Niarchos, Georgios. "Electrodialytic Remediation of PFAS-Contaminated Soil." Thesis, KTH, Vatten- och miljöteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-239878.

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Per- and polyfluoroalkyl substances (PFASs) are a group of anthropogenic aliphatic compounds, widelyknown for their environmental persistence and toxicity to living beings. While they are ubiquitous in theenvironment, interest has been focused on contaminated soil, which can act as a primary recipient andsource of groundwater contamination. Electrokinetic technology is based on the movement of ionsunder the effect of an electric field. This could be a promising remediation solution, since PFASs areusually present in their anionic form. The contaminants can then be concentrated towards the anod
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4

Ochoa-Herrera, Valeria Lourdes. "Removal of Perfluorooctane Sulfonate (PFOS) and Related Compounds From Industrial Effluents." Diss., The University of Arizona, 2008. http://hdl.handle.net/10150/194214.

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Perfluorooctane sulfonate (PFOS) and related perfluoroalkyl surfactants (PFAS) are ubiquitous contaminants of increasing public concern due to their environmental persistence, toxicity, and bioaccumulation. These perfluorinated compounds have been used for more than half a century in a wide variety of industrial and consumer products ranging from stain repellents such as Teflon® to aqueous fire-fighting foams and to grease-proof food packing. The public health and environmental risks posed by PFAS have driven environmental agencies and the industry to restrict their use to specific application
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Nilsson, Jenny. "Källspårning och åtgärdstekniker för PFAS från återvinningsanläggning." Thesis, KTH, Skolan för kemi, bioteknologi och hälsa (CBH), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-278840.

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SÖRAB:s återvinningsanläggning (ÅVA) i Hagby hanterar olika typer av avfall som t.ex. bygg- och rivningsavfall, textilier, grovavfall från hushåll, trädgårds-, elavfall samt farligt avfall. Vatten från behandlings- och lagringsytorna samlas upp, provtas och renas i anläggningens vattenreningsanläggning. Vid provtagning av processvattnet på anläggningen har poly- och perfluorerade alkylsubstanser (PFAS) påträffats. PFAS är ett samlingsnamn för flertalet syntetiskt tillverkade kemikalier och idag finns fler än 3000 olika PFAS-ämnen på världsmarknaden. PFAS har använts under
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6

Olds, Zachary M. "Development of a Risk-Based Assessment Tool for PFAS Contaminated Sites." University of Dayton / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1591097697982026.

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7

Hoggen, Emil. "Förekomst av PFAS i micropopcorn : Migration och hälsorisker." Thesis, Örebro universitet, Institutionen för naturvetenskap och teknik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-35536.

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PFAS är en grupp poly- och perfluorerade ämnen som framställs industriellt och förekommer i ett flertal produkter såsom impregnerade papper och textilier, brandskum och rengöringsmedel, detta på grund av dess smuts, vatten- och fettavstötande egenskaper. Ämnena klassas som PBT ämnen, persistenta, bioackumulerande och toxiska, vilket gör dem till ett hälsoproblem för människor och djur. Denna studie undersökte förekomsten av PFCA, PFSA och PAPS i micropopcorn, samt om migration från förpackning till majskorn innan tillagning förekom och om PFAS i popcornen kunde utgöra en hälsorisk för människo
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8

Shittu, Adenike Rofiyat. "Toxicity Studies Of Per- and Polyfluoroalkyl Substances (PFAS)." Bowling Green State University / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1625018658596765.

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9

Johansson, Tore. "Nutidsbeskrivning av PFAS i dagvatten för området Frösö Park : Med fokus mot reningsmetoder och hur PFAS-situationen ser ut för framtiden." Thesis, Karlstads universitet, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-74280.

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PFAS is a relatively new group of contaminants with unique characteristics, which in the early 21st century was understood being dangerous for both humans and the environment. In 2008, EFSA published a report on guidelines for human intake of PFAS. Target and limit values for ground and surface water around the world has been based on the information in the EFSA report. In the end of 2018, EFSA published a new preliminary report with new target values for PFAS, well below the target values published in 2008. Frösö Park in Östersund, Sweden, is polluted by PFAS from the time that the Swedish
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10

Norberg, Anna. "Riskklassning och reningsförsök av per- och polyfluorerade alkylsubstanser (PFAS) : MIFO fas 2 för Vetlanda brandövningsplats och en studie som jämför granulärt aktivt kol, jonbytarmassa, torv och nedmalet grillkol som filtermaterial för rening av PFAS i förorenat grundvatten." Thesis, Uppsala universitet, Institutionen för geovetenskap, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-445262.

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Närvaron av PFAS (per- och polyfluorerade alkylsubstanser) i miljön och i vårt dricksvatten blir alltmer uppmärksammad i Sverige och världen. Denna undersökning gick dels ut på att undersöka föroreningssituationen av bland annat PFAS på brandövningsplatsen i Vetlanda enligt Naturvårdsverkets metodik för inventering av förorenade områden (MIFO) fas 2 och utfördes av Njudung Energi på uppdrag av Höglandets räddningstjänstförbund och Vetlanda kommun. En andra del utgjordes av ett laborationsförsök där reningskapaciteten för PFAS med fyra olika adsorbenter jämfördes. Vetlanda brandövningsplats påv
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11

Haglund, Emelie. "MIFO fas 2: Riskklassning av PFAS-förorenad mark vid Sundsvall-Timrå Airport." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-296692.

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The Methodology for inventory of contaminated sites (MIFO) is a method designed by the Swedish Environmental Protection Agency with an aim to facilitate agents and consultants during inventory of contaminated areas. It is structured into two stages, the first phase comprises oriented studies of the area while the second one consists of conceptual studies, such as field testing and analysis. After each phase the object is assigned a risk class that describes the degree of contamination and the risk associated with it. At Sundsvall-Timrå airport, the soil, surface- and groundwater at two fire dr
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12

Picchietti, Matteo. "Processi di abbattimento dei PFAS nei percolati di discarica." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2022. http://amslaurea.unibo.it/25466/.

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L’emissione dei PFAS nell’ambiente è una problematica nota a livello europeo soprattutto in Italia per quanto accaduto in Veneto. Il largo utilizzo di prodotti commerciali contenenti PFAS, con conseguente rilascio nelle diverse matrici ambientali, come i percolati di discarica, comporta la necessità di predisporre di processi adeguati al trattamento di tali reflui. A tale scopo, sono state effettuate diverse prove di trattamento su una tipologia di percolato di discarica, partendo dai processi chimico-fisici, attualmente in uso per tali matrici, sino ad arrivare alle prove di trattamento con d
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13

Bannister, Jonathan. "Chemical degradation of PFAS using hydrogen peroxide and persulfate." Thesis, Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-82092.

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PFAS are a group of relatively newly discovered man-made pollutants. PFAS contains a C-F bond which is one of the strongest bonds in organic chemistry. Therefore, PFAS are not easily degradable and, once release into nature, are very persistent. PFAS are also labile in natural environments and therefore, they can sometimes be found far from the source of pollution. Their persistent and labile nature, in combination with their bioaccumulation ability and human health effects make of this compounds an important contaminant to take care of. Currently there are not stablish, wellfunctioning method
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14

Hansen, Lovisa. "PFAS-föroreningar i råvatten. : En studie uppströms Borgs vattenverk." Thesis, Linköpings universitet, Tema Miljöförändring, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-176668.

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Poly- och perfluorerade alkylsubstanser (PFAS) är syntetiskt tillverkade kemikalier som omfattar cirka 4700 individuella ämnen. PFAS har använts sedan 1950-talet i ett antal applikationer som brandsläckningsskum, impregneringsmedel samt textilier, på grund av sina unika egenskaper att vara både vattenlöslig (hydrofila) och vattenavstötande (hydrofoba). Dessa egenskaper gör att göra att PFAS kan transporteras långa vägar. Dessutom är ämnets kol-fluorbindning en av det starkaste kemiska bindningar som gör dem mycket stabila och därför svårnedbrytbara i miljön. Många PFAS misstänkts vara skadliga
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15

Rydäng, Cecilia, and Sofia Carlson. "Kartläggning över behovet av fluorkarbonberedning på varselkläder : certifierade enligt EN ISO 20471." Thesis, Högskolan i Borås, Akademin för textil, teknik och ekonomi, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-23500.

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Fluorkemi används på varselkläder i syfte för att skydda textilen mot smuts, vatten, fett och olja. Kemikalierna är skadliga för människor och miljö, de är dessutom mycket svårnedbrutna eller så bryts de inte ner överhuvudtaget. Kemikalierna är utvecklade av människor och delas upp i perfluorerade och polyfluorerade ämnen (PFAS). PFAS klassificeras också som PBT-ämnen, vilket står för att de är persistenta, bioackumulerande och toxiska. Studien är utförd i ett samarbete med Tranemo Textil AB, där behovet av fluorkarbonberedning på varselkläder undersökts. Syftet med studien är att undersöka ut
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16

Armitage, James M. "Modeling the global fate and transport of perfluoroalkylated substances (PFAS)." Doctoral thesis, Stockholms universitet, Institutionen för tillämpad miljövetenskap (ITM), 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-8571.

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Perfluoroalkylated substances (PFAS) are persistent contaminants that are widely distributed in the global environment. Despite the fact that these chemicals have been manufactured and used for over 50 years, there has been little scientific and regulatory interest until very recently. An important research priority over the past decade has been to gain a better understanding of the mechanisms and pathways explaining the presence of these compounds in remote regions. One explanation is related to the use and release of volatile precursor compounds which undergo atmospheric transport and are al
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17

Ragén, Cassandra. "PFAS : En litteraturstudie med fokus på ämnenas förekomst i livsmedel." Thesis, Örebro universitet, Institutionen för naturvetenskap och teknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-64625.

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Sedan 1950-talet har per- och polyfluorerade alkylsubstanser, PFAS, producerats och används i en rad olika produkter, vilket har resulterat i utsläpp till miljön. Ämnena har sedan spridit sig och hittats i vatten, djur och människor. Perfluoralkyl-karboxylsyror, PFCA, och perfluoralkyl-sulfonsyror, PFSA, är två klasser av konstgjorda perfluorerade alkylsyror, PFAA, som har väckt särskilt intresse på grund av deras persistens i miljön och dess förmåga ackumulera i organiskt material och i biota. Vid djurförsök har PFCA och PFSA visat sig ge toxikologiska effekter och de har även visat sig kunna
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18

Wohlin, Dennis. "Analysis of PFAS in ash from incineration facilities from Sweden." Thesis, Örebro universitet, Institutionen för naturvetenskap och teknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-86273.

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Per- and polyfluoroalkyl substances (PFAS) are a group of organohalogens that bioaccumulate in biota, have toxicological effects and are persistent in the environment. Because of the fluorinated carbon chain, PFASs are present in many household and industrial products. The aim of this study is to investigate if PFASs are residues in ash from municipality incineration facilities and asses if the ashes can become a source of environmental pollution. In the method development three different extraction methods were tested (liquid-solid extraction with MeOH, liquid-solid extraction with acetone/he
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Pettersson, Kevin. "Groundwater Movement and PFAS Transportation in the Vreta-Bålsta Esker." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-423952.

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Håbo municipality is looking for alternative drinking water sources for its residence city of Bålsta. One possible source is the Vreta-Bålsta esker located northeast of Bålsta, which could be used for artificial infiltration and extraction of groundwater. Located on this esker is an area called Dragets industrial area, in which several objects of potential contamination have been identified. One of these is a Landfill located in the northern part of the industrial area in which the local fire fighting forces has used this area for training exercises. During these exercises they have used aqueo
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Coy, Carrie. "Per- and polyfluoroalkyl substances in surface water and Bluegill and its relationship to swimming performance and histology." Bowling Green State University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu158703408453293.

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Kjellgren, Ylva. "Treatment of per- and polyfluoroalkylsubstance (PFAS)-contaminated waterusing aeration foam collection." Thesis, Institutionen för vatten och miljö, Sveriges Lantbruksuniversitet (SLU). Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-423738.

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Landfills are potential sources for PFASs and treatment techniques for landfill leachate are urgently needed. Foam fractionation is an aeration technique which utilizes the tendency of PFASs to escape the liquid phase and build foam. The foam is harvested and with it the contamination. Landfill leachate from Hovgården, Uppsala Sweden contained PFASs of higher concentration than desired and investigations into whether foam fractionation could reduce PFASs amounts were initiated. Landfill leachate containing sum PFASs of 5500 ng/L on average were aerated in two different aeration foam collection
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22

Engzell, Anna. "Destruktion av per- och polyfluorerade alkylsubstanser (PFAS) vid förbränning i avfallsförbränningsanläggningar." Thesis, Uppsala universitet, Institutionen för biologisk grundutbildning, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-395243.

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Per- and polyfluorinated alkyl substances (PFAS) are a group of environmentally harmful chemicals. The group consists of more than 4730 different substances including two of the most famous ones; PFOA and PFOS. PFAS consist of carbon backbones connected to fluorine. They are in general thermally stable and persistent to degradation due to their C-F bonds, which is one of the strongest bonds in chemistry. The use of PFAS is widespread and therefore they can be found in a variety of consumer products, which eventually end up as waste. Household waste and other waste streams are incinerated at wa
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23

Jansson, Felicia. "Occurrence of per- and polyfluorinated alkyl substances (PFAS), including ultra-short-chain compounds. Seasonal variation in rainwater from the Swedish west coast." Thesis, Örebro universitet, Institutionen för naturvetenskap och teknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-76989.

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Per- and polyfluoroalkyl substances (PFAS) are a group of highly fluorinated compounds which comprises of more than 4700 substances. A smaller number of those substances is rou-tinely measured, usually the short (C4-C7) and long chain PFAS (>C7). Detection of PFAS in different water matrices including wet precipitation have been done previously in a limited number of studies, including ultra-short chain compounds (C1-C3). Ultra-short chain com-pounds have however not been investigated to a larger extent. In this study, twelve rainwater samples from Råö have been analysed, each representing
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MORO, GIULIA. "PFAS sensing: Concept design of electrochemical and optical, bio- and biomimetic strategies." Doctoral thesis, Università degli Studi di Trieste, 2022. http://hdl.handle.net/11368/3010972.

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PFAS sensing project deals with the design of proof-of-concept sensing platforms for the simultaneous determination of per- and polyfluoroalkyl substances (PFAS) in water matrices. By testing electrochemical and optical sensing platforms based on protein receptors or synthetic molecular recognition layers, we explored the limits and potential of PFAS sensing in terms of sensitivity, inter- and intra-class selectivity and real sample applicability, getting familiar with sensing platform design.<br>PFAS sensing project deals with the design of proof-of-concept sensing platforms for the simultan
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Krögerström, Axel. "Removal of per- and polyfluoroalkyl substances(PFAS) from contaminated leachate usingaeration foam fractionation." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-444809.

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Leachate from landfills is contaminated in many ways and per- and polyfluoroalkyl substances (PFAS)-contamination is one of them. Recent studies have demonstrated the environmental and human concerns of PFAS. Therefore, the treatment of leachate is important. One technique to reduce the PFAS concentration is by using aeration and foam fractionation. Hovgården is a landfill northeast of Uppsala, where previous measurements have shown high levels of PFAS in the leachate. Earlier small-scale experiments using aeration foam fractionation as a treatment technique for PFAS removal have been done suc
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BORILE, Simone. "Rischio, vulnerabilità, disastro caso PFAS in Veneto: gestione delle crisi e delle emergenze." Doctoral thesis, Università degli studi di Ferrara, 2022. http://hdl.handle.net/11392/2481595.

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Il presente progetto di ricerca avviato nel 2018 mira a individuare le diverse implicazioni di natura socio-antropologica riconducibili ad uno dei disastri ambientali avuti luogo nella Regione Veneto, in Italia, in relazione alla contaminazione di elementi chimici cancerogeni afferenti al gruppo chimico Pfas. Attraverso una ricostruzione episodica degli eventi, dalla contaminazione allo stato attuale dell’area, l’approccio di studio trasversale e multidisciplinare ha consentito di determinare specifiche aree tematiche quali l’analisi del rischio sociale, i processi di intervento emergenzial
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Lindfeldt, Emelie. "Per- och polyfluorerade alkylsubstanser i det kommunala dricksvattnet i Sverige." Thesis, Uppsala universitet, Institutionen för biologisk grundutbildning, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-445088.

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Per- och polyfluorerade alkylsubstanser (PFAS) är en stor grupp industriellt framställda ämnen som fått stor spridning i miljön. På grund av PFAS persistens blir ämnena kvar länge i vår miljö och spridning kan fortgå ifrån förorenade områden under lång tid. Högst halter i miljön i Sverige har noterats i anslutning till brandövningsplatser där man använt brandskum innehållande PFAS-ämnen.De vanligaste källorna till människors exponering för PFAS är via kosten, inklusive dricksvatten. PFAS binder till proteiner i kroppen och ansamlas i blodet och levern samt lungor och njurar. Exponering för för
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Gellrich, Vanessa [Verfasser]. "Sorption und Verbreitung per- und polyfluorierter Chemikalien (PFAS) in Wasser und Boden / Vanessa Gellrich." Gießen : Universitätsbibliothek, 2014. http://d-nb.info/1068376546/34.

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Petersson, Emilia, and Emma Nilsson. "Tre kommuners arbete med PFAS i dricksvatten : En kvalitativ intervjustudie om svårigheter och möjligheter." Thesis, Linköpings universitet, Tema Miljöförändring, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-166318.

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Today there are many uncertainties in the form of a lack of knowledge about perfluorinated and polyfluorinated substances (PFAS) regarding long-term risks to health and the environment, there is no efficacy data for many environments. The fluorocarbon bond is the strongest chemical bond, which means that PFAS can be transported long distances, for example through water streams and into the atmosphere. If surface water and groundwater are contaminated by PFAS, people are at risk of exposure to PFAS through the drinking water. It is therefore important to investigate and identify what difficulti
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Lorenzoni, Giulia. "Impact of perfluoroalkylated substances (PFAS) exposure on maternal and newborn health in Veneto region." Doctoral thesis, Università degli studi di Padova, 2018. http://hdl.handle.net/11577/3425872.

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Background. Perfluoroalkylated substances (PFAS) are persistent organic pollutants that accumulate in the fish, wildlife, and humans. In 2013, it has been discovered an area of the Veneto Region in which ground water, surface water, and drinking water were contaminated by PFAS. Appropriate interventions have been undertaken to contain the water pollution, reducing it effectively. However, it has been estimated that the contamination had started about fifty years before its discovery, leading to the long-term exposure of the population. The long-term exposure to PFAS is worrying because PFAS ha
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Löf, Ludwig. "Evaluation of Dissolved Air Flotation for Water Purification: With Focus on Floc Characteristics and PFAS." Thesis, KTH, Kemiteknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-298378.

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I detta projekt har experiment utförts med mål att förse kommunalförbundet Norrvatten med data som kan användas som underlag för beslutsfattande angående om deras fällningslinjer i vattenreningsprocessen ska köras i flotation eller sedimentering. För detta ändamål har koncentrationen av poly- och perfluorerade alkylsubstanser (PFAS) samt karaktär av agglomererade partiklar (flockar) undersökts och jämförts mellan fällningslinjer som körs i olika konfigurationer. För flockkaraktär har skapandet och stabiliteten av flockar varit av intresse, eftersom flotation har ett mer turbulent flöde där flo
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Viklund, Kajsa. "Avskiljning av skum innehållande PFAS vid dricksvattenberedning: En studie om skumbildning i flockningskammare vid Görvälnverket." Thesis, KTH, Skolan för kemi, bioteknologi och hälsa (CBH), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-299649.

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Syftet med den här studien var att undersöka skummet som bildas på ytan i flockningskammare för kemisk fällning vid dricksvattenberedning i Kommunalförbundet Norrvattens ytvattenverk Görvälnverket. Skummet som bildas sprayas sönder med vatten och följer med vidare i reningsprocessen. För Norrvatten är det intressant att veta om det finns PFAS eller andra miljögifter i skummet för att en eventuell avskiljning av skummet skulle kunna vara aktuellt. Målet var att svara på följande frågor: 1. Under vilka förutsättningar bildas skum i flockningskammare för kemisk fällning på
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Dillström, Filip. "Patent som källa för att analysera användning och förekomst av per- och polyfluorerade alkylsubstanser (PFAS)." Thesis, Uppsala universitet, Institutionen för biologisk grundutbildning, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-318549.

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Palmgren, Rikard. "Numerisk grundvattenmodellering och föroreningsanalys av PFAS-ämnen i anslutning till nedlagd brandövningsverksamhet i Bodens kommun." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-399028.

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Poly- och perfluorerade alkylsubstanser (PFAS) är samlingsnamnet för en stor grupp kemikalier som det senaste årtiondet tilldelats världsomfattande uppmärksamhet med anledning av frekventa förekomster i vattenmiljö, djurliv och människor. Samtliga PFAS som uppträder i miljön är antropogena och har blivit industriellt framtagna och tillämpade i över 60 år. På grund av deras fysiska och kemiska stabilitet och ytaktiva egenskaper är PFAS eftertraktade inom en rad olika industriella och kommersiella produkter, från filmbildande brandskum till vatten-, smuts- och fettavvisande ytbeläggningar. De om
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Sjöholm, Margareta. "Accumulation of poly- and perfluoroalkylated substances (PFASs) and mercury in fish tissue from Lake Tana, Ethiopia : Evaluation of human exposure due to increased fish consumption." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-264932.

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Both poly- and perfluoroalkylated substances (PFASs) and mercury (Hg) are persistent bioaccumulative, and toxic substances (PBTs) of great concern due to their health effects on humans.  These pollutants are ubiquitously occurring in the global aquatic environment and dietary intake of fish is the major exposure pathway for humans. PFASs and Hg are widely studied in the temperate zones, but little is known from the tropical aquatic systems in Africa. Lake Tana, Ethiopia, is of high ecological value and predicted to increase its fish production and export during following years, but knowledge o
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36

Georgii, Linnea. "Modelling Competitive Sorption of Per- and Polyfluoroalkyl Substances (PFASs) to Soil and Sorbents." Thesis, Uppsala universitet, Luft-, vatten- och landskapslära, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-438671.

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Per- and polyfluoroalkyl substances (PFASs) have become contaminants of increasing concern to society due to the contamination of drinking water and the ecosystem. A better understanding of the sorption and transport of PFASs in soil systems is urgently needed, however there have been few studies dedicated to investigating competitive sorption among PFASs, and there is no available model to model such effects. This study investigated the sorption behaviour of PFASs of different carbon chain lengths and different functional groups to investigate potential competitive sorption effects. A multi-c
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Persson, Ellen, and Gerd Waldheim. "Spridningen av poly-och perfluorerade ämnen från skidvalla : En litteraturstudie om hur användningen av fluorvalla inom längdskidåkning påverkar mark och vatten." Thesis, KTH, Hållbar utveckling, miljövetenskap och teknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-298192.

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Poly- och perfluorerade ämnen, även kallad PFAS, har både globalt och i Sverige upptäckts i höga halter i mark samt i yt-och grundvatten de senaste åren. Kemikalierna är svårnedbrytbara och studier visar på att de bland annat är reproduktionsstörande hos djur. Källorna till utsläpp av PFAS är många, men något som uppmärksammats den senaste tiden är fluorvallor som används inom längdskidåkning. I den här studien undersöks hur användningen av skidvalla innehållande PFAS påverkar ett område samt hur dessa ämnen sprids. För att undersöka detta har tidigare mätningar
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Hård, af Segerstad Ebba. "Det brinner i knutarna : En utredning om efterbehandling av förorenat dricksvatten orsakat av brandsläckningsskum innehållande PFAS." Thesis, Örebro universitet, Institutionen för juridik, psykologi och socialt arbete, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-87662.

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Camoiras, González Pascal. "Method development for the analysis of PFAS and neutral precursors in active and passive air samplers." Thesis, Örebro universitet, Institutionen för naturvetenskap och teknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-77091.

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Poly- and perfluoroalkyl substances (PFAS) are a chemical class of global concern because of their persistence, toxicity and widespread presence in the environment. This work aimed to develop a robust and reliable method to analyse perfluorohexane sulfonic acid (PFHxS), perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS), as well as the neutral volatile PFOS precursors, namely perfluorooctane sulfonamides and perfluorooctane sulfonamidoethanols (FOSAs/FOSEs). Because these compounds can be distributed globally through atmospheric long-range transport, air sampling materials,
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40

Martini, Ettore <1995&gt. "Designing perfluoroalkyl substances (PFAS) electrochemical sensing strategies using fluorinated self-assembled monolayers and molecularly imprinted polymers." Master's Degree Thesis, Università Ca' Foscari Venezia, 2021. http://hdl.handle.net/10579/19459.

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Sensing strategies for perfluoroalkyls substances (PFAS) screening in water samples are urgently required due the fast development of this class of contaminants. The development of sensitive, robust and reliable sensing platforms is needed to carry out decentralised large-scale monitoring plans. To this aim, a screening of electrochemical sensing strategies using fluorinated self-assembled monolayers and molecularly imprinted polymers was carried out based on previous studies. Firstly, the interactions of short and long chain PFAS with self-assembled monolayers (SAM) were investigated. Changes
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Canaletti, Vanessa <1996&gt. "Comportamento dei PFAS nel processo di digestione anaerobica e valutazione preliminare degli effetti sulle rese di biogas." Master's Degree Thesis, Università Ca' Foscari Venezia, 2021. http://hdl.handle.net/10579/20534.

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Le sostanze per- e polifluoroalchiliche (PFAS) sono una classe di sostanze xenobiotiche prodotte a partire dalla fine degli anni ’40 ed utilizzate largamente in ambito sia industriale che commerciale, principalmente per conferire idro- ed oleorepellenza. La presenza di numerosi legami C-F nella molecola e quindi l’estrema resistenza termica e chimica di queste sostanze anfifiliche è alla base della loro enorme diffusione. Negli ultimi due decenni sono emerse numerose criticità legate ai PFAS, come l’estrema persistenza in ambiente (che le ha rese inquinanti ubiquitari nonché contaminanti emerg
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Gao, Chan. "Devenir des substances per et poly-fluoroalkylées (PFAS) dans les estuaires : focus sur les interactions avec les sédiments en suspension." Electronic Thesis or Diss., Bordeaux, 2024. http://www.theses.fr/2024BORD0409.

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Les substances per et poly-fluoroalkylées (PFAS) constituent un vaste groupe hétérogène de micropolluants émergents. Du fait de leur structure physico-chimique très stable, les PFAS sont persistantes et largement répandues dans l'environnement et posent de nombreux problèmes environnementaux. Ces dernières années, le devenir des PFAS a fait l'objet d'une attention croissante. Dans le cycle des PFAS, l'air, l'eau, le sol et les sédiments sont différents compartiments impliqués. À l'exutoire des grands bassins versants et à l’interface terre-mer, les estuaires sont considérés comme la principale
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Verner, Marc-André, Anne E. Loccisano, Nils-Halvdan Morken, et al. "Associations of Perfluoroalkyl Substances (PFASs) with Lower Birth Weight: An Evaluation of Potential Confounding by Glomerular Filtration Rate Using a Physiologically Based Pharmacokinetic Model (PBPK)." Digital Commons @ East Tennessee State University, 2015. https://dc.etsu.edu/etsu-works/28.

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Background: Prenatal exposure to perfluoroalkyl substances (PFAS) has been associated with lower birth weight in epidemiologic studies. This association could be attributable to glomerular filtration rate (GFR), which is related to PFAS concentration and birth weight. Objectives: We used a physiologically based pharmacokinetic (PBPK) model of pregnancy to assess how much of the PFAS–birth weight association observed in epidemiologic studies might be attributable to GFR. Methods: We modified a PBPK model to reflect the association of GFR with birth weight (estimated from three studies of GFR an
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VACCARI, LORENZO. "Studio dell'affidabilità di modelli farmacocinetici a base fisiologica nella valutazione dell'esposizione umana. Un caso di studio sulla contaminazione di acqua potabile da parte di sostanze perfluoroalchiliche nel nord Italia." Doctoral thesis, Università degli studi di Modena e Reggio Emilia, 2021. http://hdl.handle.net/11380/1245532.

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Una vasta area della regione Veneto è stata colpita da una contaminazione da sostanze perfluoroalchiliche (PFAS) avvenuta principalmente nelle acque sotterranee e potabili. L'esposizione della popolazione è iniziata probabilmente negli anni Sessanta ed è diminuita dopo l'installazione di filtri nel 2013. La Regione Veneto sta conducendo uno studio di biomonitoraggio per indagare le condizioni di salute della popolazione esposta, raccogliendo migliaia di campioni di siero. Alcuni modelli di farmacocinetica su base fisiologica (PBPK) sono in fase di sperimentazione confrontando i livelli misurat
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Schedin, Erika. "Effect of organic carbon, active carbon, calcium ions and aging on the sorption of per- and polyfluoroalkylated substances (PFASs) to soil." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-210909.

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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. The effects of PFASs to humans and animals are still being debated. It is suspected that the compounds can be carcinogenic, disrupt different hormone systems and have other severe effects. The main transport pathways of PFASs to soil are applied PFAS based firefighting foam, soil imp
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Kim, Young Ran. "Investigating endocrine disrupting chemicals and reproductive disorders in Australia." Thesis, Queensland University of Technology, 2021. https://eprints.qut.edu.au/213210/1/Young%20Ran_Kim_Thesis.pdf.

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This thesis was a step forward in investigating the relationship between human reproductive health effects and endocrine-disrupting chemicals. These chemicals are commonly found in our environment, industries, homes, and food, and have been detected in the human population. In Australia, concentrations of some endocrine disrupting chemicals have decreased over time but are still detected in humans. By conducting multiple projects including a cross-sectional study using follicular fluid, a health risk assessment using blood serum samples, and interpretation of Global Burden of Disease data, the
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Ahlqvist, Hillforth Caroline. "The health effects of per- and polyfluoroalkyl substances (PFAS) : A literature-based risk assessment for subpopulations in Uppsala." Thesis, Örebro universitet, Institutionen för hälsovetenskaper, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-83394.

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Bettoni, Lara <1992&gt. "PFAS, l'acqua nemica. Etnografia di un disastro tra percezioni, pratiche e vulnerabilità sociale nella "zona rossa" (Lonigo, Vicenza)." Master's Degree Thesis, Università Ca' Foscari Venezia, 2018. http://hdl.handle.net/10579/12098.

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È il 2013 quando il Veneto viene scosso dalla diffusione della notizia di una contaminazione delle acque da sostanze perfluoroalchiliche, i PFAS. Ma è solo nel 2017 che ha inizio una mobilitazione cittadina da parte di un gruppo di genitori di Lonigo (Vicenza). Le “Mamme NoPfas” riempiono il vuoto comunicativo tra ambientalisti ed opinione pubblica, ponendo al centro dell'attenzione la salute dei propri figli in primis, compromessa per i decenni a venire, e in secondo luogo la difesa, o meglio, il ripristino della salubrità del proprio territorio, auspicandovi un'inversione del paradigma domin
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Blocksjö, Emil, and Beatrice Marsilius. "Kvalitet på Stockholms dricksvatten : En analys av läkemedelsrester, PFAS-ämnen, pH, hårdhet och rening i Stockholms rå- och dricksvatten." Thesis, KTH, Hållbar utveckling, miljövetenskap och teknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-281699.

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Detta arbete utfördes med syfte att undersöka läkemedelsrester, PFAS-ämnen, pH-värde och hårdhet i Stockholms dricksvatten samt undersöka reningsprocessen vid Norsborgs vattenverk. För att uppfylla syftet inleddes arbetet med en litteraturstudie där information om läkemedelsrester, PFAS-ämnen, pH, hårdhet och reningsprocessen vid Norsborgs vattenverk samt information om olika kromatografiska metoder insamlades. Inga resultat erhölls för PFAS-ämnen då databaser för masspektrometri saknades på Kungliga Tekniska Högskolan. På grund av COVID-19 blev arbetet mycket begränsat eftersom analyserna för
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OTERO, SABIO CRISTINA. "Allestimento e caratterizzazione di linee cellulari ottenute da cetacei e loro applicazione nello studio degli effetti indotti dai PFAS." Doctoral thesis, Università degli studi di Padova, 2022. http://hdl.handle.net/11577/3449429.

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In questo lavoro di tesi viene descritto l’allestimento e la caratterizzazione di cinque linee cellulari ottenute da tessuto muscolare e cute di tre specie di cetacei: il tursiope (Tursiops truncatus), il grampo (Grampus griseus) e lo zifio (Ziphius cavirostris). Le colture primarie ottenute dopo digestione enzimatica con papaina dei tessuti sono state immortalizzate mediante trasfezione con il vettore plasmidico pSV3-neo. La caratterizzazione cellulare ha permesso di identificare cellule esprimenti vimentina identificate come fibroblast-like cellule. È stata caratterizzata anche una piccola p
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