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2850058 
Journal Article 
Perfluoroalkyl acids and their precursors in Swedish food: The relative importance of direct and indirect dietary exposure 
Gebbink, WA; Glynn, A; Darnerud, PO; Berger, U 
2015 
Yes 
Environmental Pollution
ISSN: 0269-7491
EISSN: 1873-6424 
198 
108-115 
English 
We analyzed food market basket samples obtained in Sweden from 1999, 2005, and 2010 for perfluoroalkyl acids (PFAAs) and a range of precursor compounds. Perfluorooctane sulfonic acid (PFOS) precursors were detected in all food year pools with the highest concentrations in 1999. Six polyfluoroalkyl phosphate diesters (diPAPs, 4:2/6:2, 6:2/6:2, 6:2/8:2, 8:2/8:2, 6:2/10:2, and 10:2/10:2) were detected in the year pools with the highest ∑diPAP concentrations in 1999 and 2005. All precursors were predominantly found in meat, fish, and/or eggs based on analysis of individual food groups from 1999. Based on year pools, PFOS precursors contributed between 4 and 1% as an indirect source to total dietary PFOS intakes between 1999 and 2010. Perfluorohexanoic acid (PFHxA) exposure originated entirely from diPAPs, whereas for perfluorooctanoic acid (PFOA) and perfluorodecanoic acid (PFDA), diPAPs contributed between 1 and 19% to total exposure. The lowest precursor contributions were generally seen in food samples from 2010. 
Per- and polyfluoroalkyl substances (PFASs); Perfluoroalkyl acids (PFAAs); Precursors; Dietary exposure; Temporal changes; PAPs 
PFAS
• 6:2/8:2 diPAP
     Literature Search
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          WOS
     Screening Results
          Excluded/Not on Topic
• 6:2 diPAP
     Literature Search
          Pubmed
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          Excluded/Not on Topic
• 8:2 diPAP
     Literature Search
          Pubmed
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• ^Per- and Polyfluoroalkyl Substances (PFAS)
     PFOA (335-67-1) and PFOS (1763-23-1)
          Literature Search – Adverse outcome pathway (2015-present)
               Pubmed
               WOS
     PFDA (335-76-2)
          Literature Search
               Pubmed
               WOS
     PFHxA (307-24-4)
          Literature Search
               Pubmed
               WOS
     6:2 diPAP (57677-95-9)
          Literature Search
               Pubmed
               WOS
     8:2 diPAP (678-41-1)
          Literature Search
               Pubmed
               WOS
     6:2/8:2 diPAP (943913-15-3)
          Literature Search
               Pubmed
               WOS
• PFDA
     Literature Search
          Pubmed
          WOS
     Screening Results
          Excluded/Not on Topic
     Title and Abstract Screening
          Excluded
• PFHxA
     Literature Search
          Pubmed
          WOS
     Screening Results
          Excluded/Not on Topic
     Title and Abstract Screening
          Excluded
               Not relevant to PECO
     Literature Search
          Pubmed
          WOS
• PFOA (335-67-1) and PFOS (1763-23-1)
     Literature Search – Adverse outcome pathway (2015-present)
          Pubmed
          WOS
     Screening Results
          Excluded/Not on Topic
     Literature Search Update (2013-2019)
          PubMed
          WOS