Risks of Antibiotic Resistance Dissemination by Leachates from Municipal Landfills of Different Ages

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dc.contributor.authorBlumfelde, Māra
dc.contributor.authorGudrā, Dita
dc.contributor.authorZačs, Dzintars
dc.contributor.authorVonda, Kārlis
dc.contributor.authorŽorža, Laura
dc.contributor.authorSelga, Tūrs
dc.contributor.authorGrīnbergs, Andrejs
dc.contributor.authorDēliņa, Aija
dc.contributor.authorBartkevičs, Vadims
dc.contributor.authorFridmanis, Dāvids
dc.contributor.authorMuter, Olga
dc.date.accessioned2024-04-10T12:15:01Z
dc.date.available2024-04-10T12:15:01Z
dc.date.issued2023-10
dc.descriptionPublisher Copyright: © 2023 by the authors.
dc.description.abstractLandfill leachate is regarded as a significant point source of pollutants that may pose a hazard to the environment, particularly to surface and ground waters. Leachates are highly variable and heterogeneous. Our study was focused on the characterization of landfill leachates derived from young (YDS) and matured (MDS) dumpsites in terms of the abundance of micropollutants, antimicrobial resistance genes (ARG), and microbial community structure. The concentrations of poly- and perfluoroalkyl substances (PFASs) were found to be higher in MDS compared to YDS, i.e., 13.19 and 7.16 μg/L, respectively. Among pharmaceutical compounds, ibuprofen was detected at the highest concentrations, i.e., 12.54, 12.81, and 13.13 μg/L, in the leachates derived from MDS, YDS, and ponds. The distribution of bacteria, archaea, eukaryotes, and viruses in the three leachate samples was as follows: 85.15 ÷ 88.04%, 9.13 ÷ 12.29%, 2.20 ÷ 2.68%, and 0.12 ÷ 0.15%, respectively. In total, 31 distinct families of ARGs were identified, comprising a total of 80 ARGs. Incubation of P. putida MSCL650 in sterile leachate from the pond resulted in decreasing the minimum inhibitory concentrations for six antibiotics as compared to cells incubated in nutrient broth. Hydrological processes, i.e., runoff and infiltration, can increase the dissemination of ARGs.en
dc.description.statusPeer reviewed
dc.format.extent3863371
dc.identifier.citationBlumfelde, M, Gudrā, D, Začs, D, Vonda, K, Žorža, L, Selga, T, Grīnbergs, A, Dēliņa, A, Bartkevičs, V, Fridmanis, D & Muter, O 2023, 'Risks of Antibiotic Resistance Dissemination by Leachates from Municipal Landfills of Different Ages', Water (Switzerland), vol. 15, no. 19, 3349. https://doi.org/10.3390/w15193349
dc.identifier.doi10.3390/w15193349
dc.identifier.issn2073-4441
dc.identifier.urihttps://dspace.rsu.lv/jspui/handle/123456789/15426
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=85174008996&partnerID=8YFLogxK
dc.language.isoeng
dc.relation.ispartofWater (Switzerland)
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectantimicrobial resistance genes
dc.subjectbiodiversity
dc.subjectlandfill
dc.subjectmicrobial community structure
dc.subject1.6 Biological sciences
dc.subject2.8 Environmental biotechnology
dc.subject2.7 Environmental engineering
dc.subject1.5 Earth and related Environmental sciences
dc.subject1.1. Scientific article indexed in Web of Science and/or Scopus database
dc.subjectBiochemistry
dc.subjectGeography, Planning and Development
dc.subjectAquatic Science
dc.subjectWater Science and Technology
dc.titleRisks of Antibiotic Resistance Dissemination by Leachates from Municipal Landfills of Different Agesen
dc.type/dk/atira/pure/researchoutput/researchoutputtypes/contributiontojournal/article

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