Cited by 12Per- and polyfluoroalkyl substances researchToxic Organic Pollutants ImpactEnvironmental Chemistry and Analysis

A quantitative classification method of land uses and assessment of per-and poly-fluoroalkyl substances (PFAS) occurrence in freshwater environments

Sardiña, Paula, Sharp, Simon, Saaristo, Minna, Coggan, Timothy, Hoak, Molly, Leahy, Paul·2024·Environmental Pollution

Abstract

We developed a quantitative method for classifying land uses for PFAS-related investigations in freshwater environments and determined PFAS ambient concentrations associated with specific land-use classes. Furthermore, our study presents a comprehensive assessment of the ambient occurrence and risks of PFAS mixtures beyond the usually studied PFOS-PFOA mixtures. Eighty-five inland (freshwater only) sites were sampled for water, sediment, and riparian soil in Victoria, south-east Australia, and analyzed for 33 PFAS. PFAS were detected in 91% of water samples, 34% of sediment samples, and 28% of riparian soil samples. Four land-use classes were defined: remote, agricultural, mixed, and urban. In the remote land-use class, only PFOS was detected at a low ambient concentration (0.0002 μg/L) in one water sample. Short-chain PFCA were frequently detected in the agricultural and mixed water samples. PFBA had the highest median ambient concentration in both land uses (ca. 0.01 μg/L), contributing to both ΣPFAS (40%) and ΣPFCA (50%) concentrations. In the urban land-use class, several congeners (PFBA, PFPeA, PFHxA, PFOA, PFHxS, and PFOS) had median ambient concentrations at or close to 0.01 μg/L and contributed similarly to ΣPFAS (10-20%). Elevated risk to the aquatic environment was found only for PFOS in two mixed and eight urban sites. This pattern was consistent with the finding for PFAS mixtures, where the elevated risk was driven by PFOS at those same sites. Our study provides critical information about environmentally relevant ambient concentrations and PFAS mixtures. This information, together with the land-use classification approach presented herein, can be used as reference levels for several critical purposes, including identifying PFAS-contaminated sites, informing land use planning and development decisions, setting standards and guidelines, and tracking changes over time.

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Crossref · 10.1016/j.envpol.2024.125272

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Research works printed but not linked: 5

  1. 2020, PFAS national environmental management plan version 2.0, Heads of EPA Australia and New Zealand
  2. 2018, Toward a new comprehensive global database of per‐ polyfluoroalkyl substances (PFASs): summary report on updating the OECD 2007 list of per and polyfluoroalkyl substances (PFASs), Series on Risk Management No. 39, Environment, Health and Safety, Environment Directorate
  3. 2015, Risk reduction approaches for PFASs-A cross country analysis, Inter-Organization Programme for the Sound Management of Chemicals Paris
  4. 1986, Guidelines for the health risk assessment of chemical mixtures, Fed. Regist., 51, 34014
  5. Warne, 2018, Revised method for deriving Australian and New Zealand water quality guideline values for toxicants – update of 2015 version. Prepared for the revision of the Australian and New Zealand guidelines for Fresh and marine, Water Quality

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Authors
Sardiña, P., Sharp, S., Saaristo, M., Coggan, T., Hoak, M., & Leahy, P.
Affiliations
Environment Protection Authority Victoria (AU)
Corresponding author
Sardiña, Paula
Venue
Environmental Pollution
Publisher
Elsevier BV
Published
2024-12
Volume
363
Issue
Pt 2
Pages
125272
ISSN
0269-7491 (ISSN-L)
OpenAlex
W4404094136
Cited by
12
References
67
Citations by year
2026: 3 · 2025: 9
FWCI
1.52
Type
journal article
Language
en
Open access
closed
Locations
  • Environmental Pollution (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Environmental Science › Environmental Chemistry › Per- and polyfluoroalkyl substances research
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Toxic Organic Pollutants Impact
  • Physical Sciences › Environmental Science › Environmental Chemistry › Environmental Chemistry and Analysis
Keywords
per- and polyfluoroalkyl substances, PFAS mixtures, land use classification, freshwater pollution, PFOS, perfluorobutanoic acid, PFHxS, perfluorooctanoic acid, perfluorohexanoic acid, PFPeA, aquatic risk assessment, sediment contamination, riparian soils, urban land use, agricultural land use, Victoria, Australia
MeSH terms
Agriculture, Environmental Monitoring, Fluorocarbons, Fresh Water, Soil, Victoria, Water Pollutants, Chemical, Alkanesulfonic Acids, Geologic Sediments

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