PM<sub>2.5</sub> exceedances and source appointment as inputs for an early warning system

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dc.contributor.authorRincon, Gladys
dc.contributor.authorMorantes Quintana, Giobertti
dc.contributor.authorGonzalez, Ahilymar
dc.contributor.authorBuitrago, Yudeisy
dc.contributor.authorGonzalez, Jean Carlos
dc.contributor.authorMolina, Constanza
dc.contributor.authorJones, Benjamin
dc.date.accessioned2025-01-20T21:12:42Z
dc.date.available2025-01-20T21:12:42Z
dc.date.issued2022
dc.description.abstractBetween June 2018 and April 2019, a sampling campaign was carried out to collect PM2.5, monitoring meteorological parameters and anthropogenic events in the Sartenejas Valley, Venezuela. We develop a logistic model for PM2.5 exceedances (>= 12.5 mu g m(-3)). Source appointment was done using elemental composition and morphology of PM by scanning electron microscopy coupled with energy dispersive spectroscopy (SEM-EDS). A proposal of an early warning system (EWS) for PM pollution episodes is presented. The logistic model has a holistic success rate of 94%, with forest fires and motor vehicle flows as significant variables. Source appointment analysis by occurrence of events showed that samples with higher concentrations of PM had carbon-rich particles and traces of K associated with biomass burning, as well as aluminosilicates and metallic elements associated with resuspension of soil dust by motor-vehicles. Quantitative source appointment analysis showed that soil dust, garbage burning/marine aerosols and wildfires are three majority sources of PM. An EWS for PM pollution episodes around the Sartenejas Valley is proposed considering the variables and elements mentioned.
dc.fuente.origenWOS
dc.identifier.doi10.1007/s10653-021-01189-2
dc.identifier.eissn1573-2983
dc.identifier.issn0269-4042
dc.identifier.urihttps://doi.org/10.1007/s10653-021-01189-2
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/93671
dc.identifier.wosidWOS:000759307100001
dc.issue.numero12
dc.language.isoen
dc.pagina.final4593
dc.pagina.inicio4569
dc.revistaEnvironmental geochemistry and health
dc.rightsacceso restringido
dc.subjectParticulate matter
dc.subjectLogistic model
dc.subjectSEM-EDS
dc.subjectEWS
dc.subject.ods11 Sustainable Cities and Communities
dc.subject.ods13 Climate Action
dc.subject.ods03 Good Health and Well-being
dc.subject.odspa11 Ciudades y comunidades sostenibles
dc.subject.odspa13 Acción por el clima
dc.subject.odspa03 Salud y bienestar
dc.titlePM<sub>2.5</sub> exceedances and source appointment as inputs for an early warning system
dc.typeartículo
dc.volumen44
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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