Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.buildenv.2006.02.017
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dc.titlePhysical characterization of particulate matter and ambient meteorological parameters at different indoor-outdoor locations in Singapore
dc.contributor.authorGupta, A.
dc.contributor.authorDavid Cheong, K.W.
dc.date.accessioned2014-12-01T08:23:08Z
dc.date.available2014-12-01T08:23:08Z
dc.date.issued2007-01
dc.identifier.citationGupta, A., David Cheong, K.W. (2007-01). Physical characterization of particulate matter and ambient meteorological parameters at different indoor-outdoor locations in Singapore. Building and Environment 42 (1) : 237-245. ScholarBank@NUS Repository. https://doi.org/10.1016/j.buildenv.2006.02.017
dc.identifier.issn03601323
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/113959
dc.description.abstractThe paper reviews the exposure to fine and coarse particles in different indoor and outdoor locations. The methodology involves measuring the particulate matter at different indoor and outdoor locations. The locations included a major expressway (high traffic volume), a minor road, and naturally and mechanically ventilated indoor spaces. It was observed that significant concentrations of fine particles were found at the expressway as compared to the normal road and naturally ventilated space. However, larger size particles were found to be higher in number density (count per litre) and mass concentration at the minor road and naturally ventilated space at close proximity to the minor road. In the mechanically ventilated space the particles above 1 μm size were negligible both in count and mass. A linear relation was established between the particle mass (PM10) and particle count (r2 = 0.5564, n = 60). Denser particulate matter was found at naturally ventilated indoor spaces in the evenings. Indoor-outdoor ratio (I/O) for the naturally ventilated space is observed to be closer to unity as in the case of mechanically ventilated space with 0.46. A higher I/O ratio is observed in the evening as compared to morning for the naturally ventilated space. Better correlation was observed between fine and coarse mode particles at the expressway as compared to the minor road. © 2006 Elsevier Ltd. All rights reserved.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.buildenv.2006.02.017
dc.sourceScopus
dc.subjectIndoor-outdoor ratio
dc.subjectParticle count
dc.subjectParticulate matter
dc.typeArticle
dc.contributor.departmentBUILDING
dc.description.doi10.1016/j.buildenv.2006.02.017
dc.description.sourcetitleBuilding and Environment
dc.description.volume42
dc.description.issue1
dc.description.page237-245
dc.description.codenBUEND
dc.identifier.isiut000241590600023
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