Evaluation of environmental and indoor air quality in new and renovated social housing units in Chile

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dc.article.number112741
dc.catalogadorgjm
dc.contributor.authorFlamant, Gilles
dc.contributor.authorBustamante Gómez, Waldo
dc.contributor.authorJanssens, Arnold
dc.contributor.authorLaverge, Jelle
dc.contributor.authorJorquera, Héctor
dc.date.accessioned2025-07-18T16:49:20Z
dc.date.available2025-07-18T16:49:20Z
dc.date.issued2025
dc.description.abstractThis study aims to evaluate a priority set of indoor environmental and air quality conditions in 22 social housing units as part of government programs for new housing construction and energy retrofit of existing housing. A comprehensive monitoring program was conducted in winter in two Chilean cities, Santiago and Coyhaique, including measurements of temperature, relative humidity, CO2, formaldehyde and fine particulate matter (PM2.5). The results showed a significant portion of the time outside the thermal comfort zone and excessive CO2 concentration and air humidity in the bedrooms, predominantly during the night hours. The decentralized ventilation system installed in most of the houses was unable to provide the required airflow rates, especially in the bedrooms. The formaldehyde concentration in the living rooms almost never exceeded the short-term exposure limit value of 100 µg/m3. The 24-h average indoor PM2.5 concentrations were above the WHO guideline of 15 µg/m3 for 77 % of the time in Santiago and 86 % in Coyhaique. Indoor PM2.5 concentrations were dominated by outdoor contributions. The chronic harm from exposure to the measured indoor formaldehyde and PM2.5 concentrations was estimated to be 1428 and 1982 DALYs/105 person/year in Santiago and Coyhaique, respectively. These values are twice to three times higher than those observed in California homes that comply with the standard ASHRAE 62.2. The results demonstrate the need for enhanced thermal standards in Chile and better ventilation solutions, capable of removing indoor pollutants and humidity generated indoors and reducing indoor PM2.5 concentrations particularly in highly polluted cities.
dc.description.funderGhent University
dc.description.funderCEDEUS
dc.description.funderANID
dc.description.funderNational Research and Development Agency
dc.description.funderUndersecretariat of the Environment of the Region of Aysén
dc.description.funderFONDECYT
dc.description.funderFONDECYT
dc.description.funderANID FONDAP
dc.format.extent12 páginas
dc.fuente.origenSCOPUS
dc.identifier.doi10.1016/j.buildenv.2025.112741
dc.identifier.issn0360-1323
dc.identifier.scopusidSCOPUS_ID:85219015253
dc.identifier.urihttps://doi.org/10.1016/j.buildenv.2025.112741
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/104959
dc.information.autorucEscuela de Arquitectura; Flamant, Gilles; S/I; 1083923
dc.information.autorucEscuela de Arquitectura; Bustamante Gómez, Waldo; 0000-0002-0420-5383; 60669
dc.information.autorucEscuela de Ingeniería; Jorquera, Héctor; 0000-0002-7462-7901; 100302
dc.language.isoen
dc.nota.accesocontenido parcial
dc.revistaBuilding and Environment
dc.rightsacceso restringido
dc.subjectFine particulate matter
dc.subjectFormaldehyde
dc.subjectIndoor air quality
dc.subjectSocial housing
dc.subjectVentilation
dc.subject.ddc600
dc.subject.deweyTecnologíaes_ES
dc.subject.ods11 Sustainable cities and communities
dc.subject.ods13 Climate action
dc.subject.odspa11 Ciudades y comunidades sostenibles
dc.subject.odspa13 Acción por el clima
dc.titleEvaluation of environmental and indoor air quality in new and renovated social housing units in Chile
dc.typeartículo
dc.volumen274
sipa.codpersvinculados1083923
sipa.codpersvinculados60669
sipa.codpersvinculados100302
sipa.trazabilidadSCOPUS;2025-03-09
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