Particle size determines the distribution of chemical composition and antibiotic resistance genes in urban atmospheric bioaerosols

Basit Öğe Kaydı
dc.contributor.authorHabeebrahuman, Haajira Beevi
dc.contributor.authorQian, Youfen
dc.contributor.authorShrivastava, Vibhaw
dc.contributor.authorRafeeq, Shamil
dc.contributor.authorDikmen, Emre
dc.contributor.authorSagirli, Eda
dc.contributor.authorLang-Yona, Naama
dc.date.accessioned2026-02-12T21:05:08Z
dc.date.available2026-02-12T21:05:08Z
dc.date.issued2026
dc.departmentBursa Teknik Üniversitesi
dc.description.abstractAirborne aerosols impact urban air quality and public health through transport and inhalation of chemical pollutants and microbial agents, including antibiotic-resistant bacteria. However, relationships between particle size, environmental parameters, chemical and microbial composition, and antibiotic-resistance dispersion remain poorly understood. This study examined the interplay between these parameters for size-segregated airborne particles collected in a mid-sized urban area. Fine particles (<1.5 m) contained elevated K+, NH4+, Cl-, and anthropogenic carbonaceous compounds, with predominant Proteobacteria. Coarse fractions (>1.5 mu m) mainly contained mineral-derived components (Mg2+, Ca2+) and carbonate carbon from natural sources, with greater microbial diversity dominated by Firmicutes (29 %) and Actinobacteriota (25 %). Key opportunistic pathogens (Acinetobacter, Staphylococcus, and Lactobacillus) and antibiotic resistance genes with tetW and sul1 were the most abundant, followed by blaTEM and intl1 were significantly more abundant in coarse fractions. Particle size, rather than seasonality, was found to primarily determine chemical composition and microbial community structure. Key genera (Acinetobacter, Delftia, Paucibacter, and Pseudomonas) positively correlated with anthropogenic chemicals but negatively with ARGs, while ARG-harboring genera associated strongly with mineral nutrients. These findings suggest coarse urban aerosols function as reservoirs of antibiotic resistance genes and opportunistic pathogens, with abundance peaking in warmer months, raising public health concerns through inhalation exposure.
dc.description.sponsorshipTechnion Starting Grant; Azrieli Foundation; Israel Science Foundation [660/25]; Scientific and Technological Research Council of Turkiye (TUBITAK) [119Y256]
dc.description.sponsorshipThis study was supported by the Technion Starting Grant, the Azrieli Foundation, and the Israel Science Foundation (Grant #660/25) , and the Scientific and Technological Research Council of Turkiye (TUBITAK) (Grant #119Y256) . The authors gratefully acknowledge Mr. Jonathan Bloushtein for laboratory assistance and Dr. Tamar Bsor-Rahamim for providing fungal reference strain for qPCR genomic calibration.
dc.identifier.doi10.1016/j.jhazmat.2026.141206
dc.identifier.issn0304-3894
dc.identifier.issn1873-3336
dc.identifier.pmid41579644
dc.identifier.scopus2-s2.0-105028924378
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.jhazmat.2026.141206
dc.identifier.urihttps://hdl.handle.net/20.500.12885/6820
dc.identifier.volume503
dc.identifier.wosWOS:001678224000001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofJournal of Hazardous Materials
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20260212
dc.subjectBioaerosols
dc.subjectUrban air quality
dc.subjectAirborne bacterial communities, Temporal dynamics
dc.subjectParticle size segregation
dc.titleParticle size determines the distribution of chemical composition and antibiotic resistance genes in urban atmospheric bioaerosols
dc.typeArticle

Dosyalar

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
PubMed İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu