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5080507 
Journal Article 
Contamination of groundwater with per- and polyfluoroalkyl substances (PFAS) from legacy landfills in an urban re-development precinct 
Hepburn, E; Madden, C; Szabo, D; Coggan, TL; Clarke, B; Currell, M 
2019 
Yes 
Environmental Pollution
ISSN: 0269-7491
EISSN: 1873-6424 
248 
101-113 
English 
The extent of per- and polyfluoroalkyl substances (PFAS) in groundwater surrounding legacy landfills is currently poorly constrained. Seventeen PFAS were analysed in groundwater surrounding legacy landfills in a major Australian urban re-development precinct. Sampling locations (n = 13) included sites installed directly in waste material and down-gradient from landfills, some of which exhibited evidence of leachate contamination including elevated concentrations of ammonia-N (≤106 mg/L), bicarbonate (≤1,740 mg/L) and dissolved methane (≤10.4 mg/L). Between one and fourteen PFAS were detected at all sites and PFOS, PFHxS, PFOA and PFBS were detected in all samples. The sum of detected PFAS (∑14PFAS) varied from 26 ng/L at an ambient background site to 5,200 ng/L near a potential industrial point-source. PFHxS had the highest median concentration (34 ng/L; range: 2.6-280 ng/L) followed by PFOS (26 ng/L; range: 1.3-4,800 ng/L), PFHxA (19 ng/L; range:
Per- and polyfluoroalkyl substances (PFAS); Groundwater contamination; Landfill leachate 
• PFBS
     Search Update 5/2019
          PubMed
• PFHxA
     LitSearch: Feb 2018 - May 2019
          PubMed
     Literature Search
          Pubmed
• PFHxS
     LitSearch: Feb 2018 - May 2019
          PubMed
• PFOA (335-67-1) and PFOS (1763-23-1)
     Literature Search Update (2013-2019)
          PubMed