Co-occurrence of PFASs, TPHs, and BTEX in subsurface soils: impacts on native microbial communities and implications for bioremediation

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dc.contributor.authorZhang, Zhuanxia
dc.contributor.authorLiu, Zeliang
dc.contributor.authorCoulon, Frederic
dc.contributor.authorLuo, Gubai
dc.contributor.authorWang, Qing
dc.contributor.authorGao, Xinyu
dc.contributor.authorLi, Zhongyuan
dc.contributor.authorSong, Xin
dc.date.accessioned2025-03-19T12:48:26Z
dc.date.available2025-03-19T12:48:26Z
dc.date.freetoread2025-03-19
dc.date.issued2025-02-15
dc.date.pubOnline2024-12-20
dc.description.abstractThis study investigates the co-occurrence of per- and polyfluoroalkyl substances (PFASs), petroleum hydrocarbons (TPHs) and benzene, toluene, ethylbenzene, and xylene (BTEX) and their effects on the indigenous microbial communities in soils at a contaminated site with a history of petroleum refinery operations. PFASs concentrations were in the range of 5.65–6.73 ng/g, and fluorooctane sulfonate (PFOS) and perfluorobutane sulfonic acid (PFBS) were the dominating compounds. No significant difference was observed in the PFASs concentration profiles between the site and background locations, indicating that PFASs detected in the soil samples were mainly contributed from non-point sources, due to the long-distance transport of PFASs in the region. The concentrations of TPHs and BTEX ranged from 227 to 72,360 mg/kg and 0.06–2109.77 mg/kg, respectively, mainly contributed by the historical refinery activities. The presence of PFASs, TPHs, and BTEX significantly impacted soil microbial community diversity and abundance, altering microbial compositions and enriching bacteria with higher resistance or metabolic capabilities against contamination. Strong correlations were observed between TPHs and its degraders such as Pseudomonas, Azoarcus, and Polaromonas. Significant positive relationship between PFASs and Trichlorobacter implied the potential defluorination capabilities of Trichlorobacter, warranting further investigation. Moreover, the higher energy metabolism including carbon, nitrogen and sulfur metabolisms and higher abundance of metabolic enzymes for alkane, cyclohexane and toluene in the refinery site revealed the potential occurrence of natural biodegradation of contaminants with indigenous microbial community. These findings highlight the complexity of sites contaminated with a mixture of traditional and emerging contaminants, providing valuable insights into the potential for biodegradation of mixed contaminants and underscoring the need for integrated approaches in environmental remediation strategies. This study contributes to understanding the ecological impacts of co-occurring contaminants and emphasizes the importance of considering multiple contaminant types in environmental risk assessments and remediation efforts.
dc.description.journalNameEnvironmental Research
dc.description.sponsorshipNational Natural Science Foundation of China, European Commission, Ministry of Science and Technology of the People's Republic of China
dc.description.sponsorshipThis work was funded by the National Natural Science Foundation of China (No. 32061133001; No. 42277029), the National key research and development program of China (No. 2019YFC1805700 and No. 2019YFC1805703), and the CSCEC Eco-Environmental Engineering Research Center (Soil Remediation Technology and Equipment) (CSCEC-PT-009). We acknowledge the cooperation between China and the EU through the EiCLaR project (European Union's Horizon 2020; N◦965945).
dc.format.mediumPrint-Electronic
dc.identifier.citationZhang Z, Liu Z, Coulon F, et al., (2025) Co-occurrence of PFASs, TPHs, and BTEX in subsurface soils: impacts on native microbial communities and implications for bioremediation. Environmental Research, Volume 267, February 2025, Article number 120650en_UK
dc.identifier.eissn1096-0953
dc.identifier.elementsID561005
dc.identifier.issn0013-9351
dc.identifier.paperNo120650
dc.identifier.urihttps://doi.org/10.1016/j.envres.2024.120650
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/23626
dc.identifier.volumeNo267
dc.languageEnglish
dc.language.isoen
dc.publisherElsevieren_UK
dc.publisher.urihttps://www.sciencedirect.com/science/article/pii/S0013935124025544?via%3Dihub
dc.rightsAttribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subject41 Environmental Sciencesen_UK
dc.subject4105 Pollution and Contaminationen_UK
dc.subjectCo-contaminationen_UK
dc.subjectEcological responsesen_UK
dc.subjectMetabolism functionen_UK
dc.subjectMicrobial communityen_UK
dc.subjectPFASsen_UK
dc.subjectToxicologyen_UK
dc.subject31 Biological sciencesen_UK
dc.subject34 Chemical sciencesen_UK
dc.subject.meshBiodegradation, Environmentalen_UK
dc.subject.meshSoil Pollutantsen_UK
dc.subject.meshSoil Microbiologyen_UK
dc.subject.meshBenzene Derivativesen_UK
dc.subject.meshHydrocarbonsen_UK
dc.subject.meshEnvironmental Monitoringen_UK
dc.subject.meshFluorocarbonsen_UK
dc.subject.meshTolueneen_UK
dc.subject.meshPetroleumen_UK
dc.subject.meshXylenesen_UK
dc.subject.meshSoilen_UK
dc.subject.meshMicrobiotaen_UK
dc.titleCo-occurrence of PFASs, TPHs, and BTEX in subsurface soils: impacts on native microbial communities and implications for bioremediationen_UK
dc.typeArticle
dc.type.subtypeJournal Article
dcterms.dateAccepted2024-12-16

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