Contamination of groundwater with per- and polyfluoroalkyl substances (PFAS) from legacy landfills in an urban re-development precinct.
Environ Pollut
; 248: 101-113, 2019 May.
Article
em En
| MEDLINE
| ID: mdl-30784829
ABSTRACT
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 (nâ¯=â¯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 (≤106â¯mg/L), bicarbonate (≤1,740â¯mg/L) and dissolved methane (≤10.4â¯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 26â¯ng/L at an ambient background site to 5,200â¯ng/L near a potential industrial point-source. PFHxS had the highest median concentration (34â¯ng/L; range 2.6-280â¯ng/L) followed by PFOS (26â¯ng/L; range 1.3-4,800â¯ng/L), PFHxA (19â¯ng/L; range Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Ácidos Sulfônicos
/
Poluentes Químicos da Água
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Água Subterrânea
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Monitoramento Ambiental
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Instalações de Eliminação de Resíduos
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Fluorocarbonos
País/Região como assunto:
Oceania
Idioma:
En
Revista:
Environ Pollut
Assunto da revista:
SAUDE AMBIENTAL
Ano de publicação:
2019
Tipo de documento:
Article