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Contrasted effects of relative humidity and precipitation on urban PM2.5 pollution in high elevation urban areas

2018-06-18Artigo científico Acesso aberto
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dc.contributor.authorZalakeviciute, Rasa
dc.contributor.authorLópez-Villada, Jesús
dc.contributor.authorRybarczyk, Yves
dc.contributor.institutionDEE2010-C2 Robótica e Manufactura Integrada por Computador
dc.contributor.institutionCTS - Centro de Tecnologia e Sistemas
dc.contributor.institutionUNINOVA-Instituto de Desenvolvimento de Novas Tecnologias
dc.contributor.institutionDEE - Departamento de Engenharia Electrotécnica e de Computadores
dc.contributor.pblMolecular Diversity Preservation International (MDPI)
dc.date.accessioned2022-12-16T22:06:07Z
dc.date.available2022-12-16T22:06:07Z
dc.date.issued2018-06-18
dc.description.abstractLevels of urban pollution can be influenced largely by meteorological conditions and the topography of the area. The impact of the relative humidity (RH) on the daily average PM2.5 concentrations was studied at several sites in a mid-size South American city at a high elevation over the period of nine years. In this work, we show that there is a positive correlation between daily average urban PM2.5 concentrations and the RH in traffic-busy central areas, and a negative correlation in the outskirts of the city inmore industrial areas. While in the traffic sites strong events of precipitation (≥9 mm) played a major role in PM2.5 pollution removal, in the city outskirts, the PM2.5 concentrations decreased with increasing RH independently of rain accumulation. Increasing PM2.5 concentrations are to be expected in any highly motorized city where there is high RH and a lack of strong precipitation, especially in rapidly growing and developing countries with high motorization due to poor fuel quality. Finally, two models, based on a logistic regression algorithm, are proposed to describe the effect of rain and RH on PM2.5, when the source of pollution is traffic-based vs. industry-based.en
dc.description.versionpublishersversion
dc.description.versionpublished
dc.format.extent4315941
dc.identifier.doi10.3390/su10062064
dc.identifier.otherPURE: 4570285
dc.identifier.otherPURE UUID: e32f6e95-5d03-47cd-8dcd-8bc217731fa2
dc.identifier.otherScopus: 85048814162
dc.identifier.otherWOS: 000436570100376
dc.identifier.urihttp://hdl.handle.net/10362/146301
dc.identifier.urlhttps://www.scopus.com/pages/publications/85048814162
dc.language.isoeng
dc.peerreviewedyes
dc.subjectCombustion efficiency
dc.subjectPrecipitation
dc.subjectRelative humidity
dc.subjectUrban PM
dc.subjectGeography, Planning and Development
dc.subjectRenewable Energy, Sustainability and the Environment
dc.subjectManagement, Monitoring, Policy and Law
dc.subjectSDG 7 - Affordable and Clean Energy
dc.subjectSDG 11 - Sustainable Cities and Communities
dc.titleContrasted effects of relative humidity and precipitation on urban PM2.5 pollution in high elevation urban areasen
dc.typejournal article
degois.publication.issue6
degois.publication.titleSustainability
degois.publication.volume10
dspace.entity.typePublication
rcaap.rightsopenAccess

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