US EPA

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 

ELSEVIER SCI LTD 

OXFORD 

248 

101-113 

English 

30784829 

10.1016/j.envpol.2019.02.018 

WOS:000466618000012 

https://linkinghub.elsevier.com/retrieve/pii/S0269749118327994
Exit
 

is supplemented by 11374588 : Supplementary material

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