Repositorio
Institucional

Acuna, Jacquelinne J.

Ruiz-Gil, Tay

Marileo, Luis

Carrazana, Elizabeth

Rilling, Joaquin

Campos, Marco

Correa-Araneda, Francisco

Fujiyoshi, So

Jorquera, Milko A.

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

SPRINGER

ARCHIVES OF MICROBIOLOGY

en

Temuco (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.

artículo original

This study was funded by the National Fund for Scientific and Technological Development (FONDECYT) project no. 1201386 (to J. J. A. and M. A.J.), SATREPS-MACH JST/JICA Japan code JPMJSA1705 (to J.J.A., F.M. J. R and M.A.J.),FONDEQUIP code EQM170171 (to M.A.J.), and Program 'Apoyo a Profesores Patrocinantes de Alumnos de Pre y Postgrado' code DI19-2016, Vicerrectoria de Investigacion y Postgrado, Universidad de La Frontera (to T.R.G).

Este estudio fue financiado por el Fondo Nacional de Desarrollo Científico y Tecnológico (FONDECYT) proyecto no. 1201386 (a J. J. A. y M. A.J.), código SATREPS-MACH JST/JICA Japón JPMJSA1705 (a J.J.A., F.M. J. R y M.A.J.), código FONDEQUIP EQM170171 (a M.A.J.) y código del Programa 'Apoyo a Profesores Patrocinantes de Alumnos de Pre y Postgrado' DI19-2016, Vicerrectoría de Investigación y Postgrado, Universidad de La Frontera (a T.R.G).

10.1007/s00203-021-02740-6

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Air quality

Airborne bacteria

Chile

Bioaerosols

Particular matter

PM2

5

NON-HAZE DAYS

CHEMICAL-COMPOSITION

FUNGAL COMMUNITIES

SIZE DISTRIBUTION

URBAN

MICROORGANISMS

BIOAEROSOLS

AREA

PARTICLES

EPISODES

Microbiología

Calidad del aire

Bacterias en el aire

Chile

Bioaerosoles

Materia particular

PM2

5

DÍAS SIN NEBLINA

COMPOSICIÓN QUÍMICA

COMUNIDADES DE HONGOS

DISTRIBUCIÓN DE TAMAÑO

URBANO

MICROORGANISMOS

BIOAEROSOLES

ÁREA

PARTICULAS

EPISODIOS

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

artículo original

version publicada

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acceso abierto

acceso abierto

ANID-FONDECYT 1201386

UFRO DI19-2016

ANID-FONDEQUIP EQM170171

JPMJSA1705

ANID FONDECYT 1201386

ANID FONDEQUIP EQM170171

WOS:000745427300001