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Waste Incineration as a Possible Source of Perfluoroalkyl Acids to the Environment – Method Development and Screening
Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM).
2014 (English)Independent thesis Advanced level (degree of Master (Two Years)), 40 credits / 60 HE creditsStudent thesis
Abstract [en]

Atmospheric deposition has been suggested to be a major input pathway of perfluoroalkyl acids (PFAAs) to the Baltic Sea catchment area and to the Baltic Sea itself. However, the sources of PFAAs to the atmosphere are not well characterized. In this study we investigated if waste incineration plants in Sweden could be a source of PFAAs to the atmosphere and to the environment in general. Samples of the end products from waste incineration were collected at four different incineration plants. The plants differed in size and technical advancement and were considered to be representative for the majority of waste incineration plants in Sweden. The collected samples were slag from the furnaces, fly ash from the flue gases, “bambergkaka” (a mix of fly ash and sludge from wastewater treatment) as well as condensate and wastewater from the cleaning process of the flue gases. Two methods were developed, one for analysis of PFAAs in solid samples and one for water samples. Method validation showed good performance for both methods in terms of precision and accuracy, despite low recoveries obtained for the method for solid samples. The results from sample analysis revealed that PFAAs were present in all solid samples at concentrations in the low to sub ng/g range and in all but one condensate and wastewater samples at concentrations in the low to sub ng/L range. The quantified concentrations were used to estimate the potential annual discharges of PFAAs from waste incineration plants to the environment. Emission scenarios via landfills, via wastewater treatment plants and to the atmosphere were considered. The main conclusion of this study is that waste incineration in Sweden is not a significant source of PFAAs to the atmosphere or to the environment in general.

Place, publisher, year, edition, pages
2014. , p. 25
Keywords [en]
Atmospheric deposition, perfluoroalkyl acids, PFASs, waste incineration
National Category
Analytical Chemistry
Identifiers
URN: urn:nbn:se:su:diva-161736OAI: oai:DiVA.org:su-161736DiVA, id: diva2:1261025
Supervisors
Available from: 2019-12-03 Created: 2018-11-06 Last updated: 2019-12-03Bibliographically approved

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Analytical Chemistry

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CiteExportLink to record
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