Airborne bacterial community associated with fine particulate matter (PM2.5) under different air quality indices in Temuco city, southern Chile

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dc.contributor.authorAcuna, Jacquelinne J.
dc.contributor.authorRuiz Gil, Tay
dc.contributor.authorMarileo, Luis
dc.contributor.authorCarrazana, Elizabeth
dc.contributor.authorRilling, Joaquin
dc.contributor.authorCampos, Marco
dc.contributor.authorCorrea Araneda, Francisco
dc.contributor.authorFujiyoshi, So
dc.contributor.authorJorquera, Milko A.
dc.date2022
dc.date.accessioned2022-02-07T21:23:30Z
dc.date.available2022-02-07T21:23:30Z
dc.description.abstractTemuco (Chile) is one of the most polluted cities in Chile and Latin America. Although the fine fraction of particulate matter (PM2.5) has been extensively studied and monitored due to its negative impact on public health, its microbiological components remain unknown. We explored, the airborne bacterial community in PM2.5 under good, moderate, alert, pre-emergency and emergency indices of air quality (AQIs) established by the Chilean government. Bacterial community relationship with environmental factors (PM2.5, PM10, carbon monoxide, among others), was also evaluated. Significant differences in PM2.5 bacterial community composition associated with AQIs were revealed, using 16S rRNA target sequences of denaturing gradient gel electrophoresis (DGGE) bands. Bacterial communities in PM2.5 were mainly clustered (80%) into emergency and pre-emergency samples. The dominant phylum was Proteobacteria and most abundant genus was Novosphingobium, traditionally related to opportunistic respiratory diseases. The main factors associated with community structure were PM2.5, PM10 and carbon monoxide concentrations. This study exposed that bacterial community composition in Temuco varies according to AQIs, with the occurrence of potential opportunistic bacteria on heavily polluted days.
dc.identifier.citationARCHIVES OF MICROBIOLOGY,Vol.204,,2022
dc.identifier.doi10.1007/s00203-021-02740-6
dc.identifier.urihttps://repositoriodigital.uct.cl/handle/10925/4492
dc.language.isoen
dc.publisherSPRINGER
dc.sourceARCHIVES OF MICROBIOLOGY
dc.subject.englishAir quality
dc.subject.englishAirborne bacteria
dc.subject.englishChile
dc.subject.englishBioaerosols
dc.subject.englishParticular matter
dc.subject.englishPM2
dc.subject.english5
dc.titleAirborne bacterial community associated with fine particulate matter (PM2.5) under different air quality indices in Temuco city, southern Chile
dc.typeArticle
uct.indizacionSCI
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