Wood burning pollution in Chile: A tale of two mid-size cities

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dc.catalogadorgjm
dc.contributor.authorJorquera, Héctor
dc.contributor.authorVillalobos, Ana María
dc.contributor.authorSchauer, James J.
dc.date.accessioned2024-05-30T16:23:19Z
dc.date.available2024-05-30T16:23:19Z
dc.date.issued2021
dc.description.abstractCities in southern Chile are facing high levels of PM2.5 because of wood burning pollution. We quantify the contribution of wood smoke to fine particles in two mid-size cities: Molina and Valdivia, located in different climate zones. The sampling campaigns were carried out during austral winter (July to September) in 2018 (Molina) and 2019 (Valdivia). 24-h filter samples were analyzed for carbonaceous compounds, secondary ions, metals, and particle-phase organic molecular markers. Average winter concentrations of PM2.5 were 53 ± 32 μg/m3 (average ± standard deviation) in Molina and 89 ± 55 μg/m3 in Valdivia. The major component of fine particles was organic matter, representing more than 70% of PM2.5. Concentrations of organic molecular markers were used in a receptor model (US EPA CMB8.2) to identify and quantify primary sources of PM2.5. The major source of PM2.5 was wood smoke, which accounted for 41.55 ± 9.77 μg/m3 (62.9 ± 15.3%) in Molina and 43.65 ± 24.06 μg/m3 (51.7 ± 21.1%) in Valdivia. Secondary organic aerosols (SOA) generated from inefficient wood burning, contributed 20.4 ± 17.7% in Molina and 28.9 ± 27.6% in Valdivia. Secondary inorganic ions and dust are minor sources of PM2.5. The total contribution of wood smoke (adding primary wood smoke and SOA) could be as much as 83% in Molina and 81% in Valdivia, during the winter season.
dc.fuente.origenORCID
dc.identifier.doi10.1016/j.apr.2021.02.011
dc.identifier.urihttps://doi.org/10.1016/j.apr.2021.02.011
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/86055
dc.information.autorucEscuela de Ingeniería; Jorquera, Héctor; 0000-0002-7462-7901; 100302
dc.issue.numero4
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final59
dc.pagina.inicio50
dc.revistaAtmospheric Pollution Research
dc.rightsacceso restringido
dc.subjectAir pollution
dc.subjectResidential wood burning
dc.subjectFuel poverty
dc.subjectSustainable urban development
dc.subject.ddc600
dc.subject.deweyTecnologíaes_ES
dc.titleWood burning pollution in Chile: A tale of two mid-size cities
dc.typeartículo
dc.volumen12
sipa.codpersvinculados100302
sipa.trazabilidadORCID;2024-05-27
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