Influence of filtration on I/O particle concentration ratios at urban office buildings
Quang, Tran Ngoc, He, Congrong, Morawska, Lidia, & Knibbs, Luke D. (2012) Influence of filtration on I/O particle concentration ratios at urban office buildings. In Healthy Buildings 2012, 10th International Conference, Official Conference of the International Society of Indoor Air Quality and Climate, 8-12 July 2012, Brsibane Exhibition and Convention Centre, Brisbane, QLD. (Unpublished)
Epidemiological research has consistently shown an association between fine and ultrafine particle concentrations, and increases in both respiratory and cardiovascular morbidity and mortality. These particles, often found in vehicle emissions outside buildings, can penetrate inside via their envelopes and mechanically ventilated systems. Indoor activities such as printing, cooking and cleaning, as well as the movement of building occupants are also an additional source of these particles. In this context, the filtration systems of mechanically ventilated buildings can reduce indoor particle concentrations. Several studies have quantified the efficiency of dry-media and electrostatic filters, but they mainly focused on the particle size range > 300 nm. Some others studied ultrafine particles but their investigations were conducted in laboratories. At this point, there is still only limited information on in situ filter efficiency and an incomplete understanding of filtration influence on I/O ratios of particle concentrations. To help address these gaps in knowledge and provide new information for the selection of appropriate filter types in office building HVAC systems, we aimed to:
(1) measure particle concentrations at up and down stream flows of filter devices, as well as outdoor and indoor office buildings;
(2) quantify efficiency of different filter types at different buildings; and
(3) assess the impact of these filters on I/O ratios at different indoor and outdoor source operation scenarios.
Citation countsare sourced monthly fromand citation databases.
These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science generally from 1980 onwards.
Citations counts from theindexing service can be viewed at the linked Google Scholar™ search.
Full-text downloadsdisplays the total number of times this work’s files (e.g., a PDF) have been downloaded from QUT ePrints as well as the number of downloads in the previous 365 days. The count includes downloads for all files if a work has more than one.
|Item Type:||Conference Paper|
|Keywords:||ultrafine particle, particle size distribution, deep bed filter, electrostatic filter, efficiency|
|Subjects:||Australian and New Zealand Standard Research Classification > EARTH SCIENCES (040000) > ATMOSPHERIC SCIENCES (040100)|
Australian and New Zealand Standard Research Classification > ENVIRONMENTAL SCIENCES (050000) > ENVIRONMENTAL SCIENCE AND MANAGEMENT (050200) > Environmental Monitoring (050206)
|Divisions:||Current > Schools > School of Chemistry, Physics & Mechanical Engineering|
Current > Institutes > Institute of Health and Biomedical Innovation
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Copyright Owner:||Copyright 2012 The Authors|
|Deposited On:||29 Oct 2012 16:01|
|Last Modified:||29 Oct 2012 17:26|
Repository Staff Only: item control page