Cited by 17Per- and polyfluoroalkyl substances researchMicrobial bioremediation and biosurfactantsMicrobial Fuel Cells and Bioremediation

The DOI matches its Crossref record; 36 of the 36 references it cites were found in a registry or an index.

Stimulating Acidimicrobium sp. Strain A6 in iron-rich, acidic sediments from AFFF-impacted sites for PFAS defluorination

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Huang, Shan, Smorada, Chiara, Schaefer, Charles E., Jaffé, Peter R.·2024·Science of The Total Environment

Abstract

Per - and polyfluoroalkyl substances (PFAS) are persistent and bioaccumulative contaminants that are widely used in industrial applications and consumer products and pose significant risks to ecosystems and human health. Acidimicrobium sp. Strain A6 (A6), which is common in acidic, and iron rich soils and sediments is capable of both anaerobic ammonium (NH 4 + ) oxidation under iron reduction (Feammox) and defluorination of perfluorinated alkyl substances, such as perfluoroalkyl acids (PFAAs). This study investigates the potential for biostimulating A6 via the supply of NH 4 + and ferric iron (Fe(III)) with the goal of defluorinating PFAAs. Sediment samples from acidic, iron-rich, AFFF (aqueous film forming foam) impacted sites were collected and incubated with added Fe(III) and NH 4 + . Quantitative PCR was used to track A6 numbers as well as dehalogenase and F − ion transporter genes during these incubations; changes in the microbial community structure were tracked through 16S rRNA gene sequencing. The findings reveal that the addition of Fe(III) and NH 4 + stimulated the Feammox reaction and A6 growth and enhanced the degradation of perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS). Results also show a significant presence and activity of the above-mentioned genes in these incubations. The insights gained from this study could inform bioremediation strategies for PFAS-contaminated environments, especially in geochemical settings that favor the presence of A6.

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Crossref · 10.1016/j.scitotenv.2024.176801

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Metadata

Authors
Huang, S., Smorada, C., Schaefer, C. E., & Jaffé, P. R.
Affiliations
  • Princeton University (US)
  • CDM Smith (United States) (US)
Corresponding author
Jaffé, Peter R.
Venue
Science of The Total Environment
Publisher
Elsevier BV
Published
2024-12
Volume
955
Pages
176801
ISSN
0048-9697 (ISSN-L)
OpenAlex
W4403271944
Cited by
17
References
36
Citations by year
2026: 13 · 2025: 4
FWCI
1.94
Type
journal article
Language
en
Open access
Locations
  • The Science of The Total Environment (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
Funders
  • U.S. Department of Defense
  • Strategic Environmental Research and Development Program (ER20-1219)
Topics
  • Physical Sciences › Environmental Science › Environmental Chemistry › Per- and polyfluoroalkyl substances research
  • Physical Sciences › Environmental Science › Pollution › Microbial bioremediation and biosurfactants
  • Physical Sciences › Environmental Science › Environmental Engineering › Microbial Fuel Cells and Bioremediation
Keywords
perfluoroalkyl acids, perfluorooctanoic acid, PFOS, biostimulation, iron(III), ammonium, microbial community structure, bioremediation
MeSH terms
Biodegradation, Environmental, Fluorocarbons, Iron, Alkanesulfonic Acids, Geologic Sediments, Halogenation

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