Quantitative Assessment of the Effect of Surface Deposition and Coagulation on the Dynamics of Submicrometer Particles Indoors
|
PDF
(808kB)
Quantitative_Assessment_of_the_Effect_of_Surface_Deposition_and_Coagulation.pdf. |
Description
Exposure to airborne particles indoors depends on particle concentration, which is affected by air filtration, ventilation, and particle dynamics. The aim of this work was quantitative assessment of the effects of coagulation, surface deposition, and ventilation on the submicrometer particle concentration indoors. The assessment was obtained from measured particle loss rate and deposition velocity parameters. The experiments were conducted in an experimental chamber for three different types of aerosols: environmental tobacco smoke, petrol smoke, and ambient air aerosols. Particle number concentration and size distribution were measured in the size range between 0.017 and 0.898 wm by SMPS. The average values for the overall deposition loss rates varied from 4.3 2 10m5 sm1 (0.16 hm1) to 1.1 2 10m4 sm1 (0.39 hm1). The overall deposition velocities associated with surface deposition and coagulation ranged from 9.6 2 10m4 cm sm1 to 2.4 2 10m3 cm sm1, and for surface deposition only from 2.8 2 10m4 cm sm1 to 6.3 2 10m4 cm sm1. For indoor conditions with an air exchange rate above 1.3 hm1, (natural ventilation, no filters) only a reduction in particle number of about 20% is attributed to the surface deposition and coagulation.
Impact and interest:
Citation counts are sourced monthly from Scopus and Web of Science® 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 the Google Scholar™ indexing service can be viewed at the linked Google Scholar™ search.
Full-text downloads:
Full-text downloads displays 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.
ID Code: | 5796 | ||
---|---|---|---|
Item Type: | Contribution to Journal (Journal Article) | ||
Refereed: | Yes | ||
ORCID iD: |
|
||
Measurements or Duration: | 12 pages | ||
DOI: | 10.1080/02786820300975 | ||
ISSN: | 0278-6826 | ||
Pure ID: | 34123044 | ||
Divisions: | Past > QUT Faculties & Divisions > Faculty of Science and Technology Past > QUT Faculties & Divisions > Science & Engineering Faculty Current > Research Centres > Australian Research Centre for Aerospace Automation |
||
Copyright Owner: | Consult author(s) regarding copyright matters | ||
Copyright Statement: | This work is covered by copyright. Unless the document is being made available under a Creative Commons Licence, you must assume that re-use is limited to personal use and that permission from the copyright owner must be obtained for all other uses. If the document is available under a Creative Commons License (or other specified license) then refer to the Licence for details of permitted re-use. It is a condition of access that users recognise and abide by the legal requirements associated with these rights. If you believe that this work infringes copyright please provide details by email to qut.copyright@qut.edu.au | ||
Deposited On: | 12 Dec 2006 00:00 | ||
Last Modified: | 06 May 2024 14:50 |
Export: EndNote | Dublin Core | BibTeX
Repository Staff Only: item control page