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The modifying effect of the building envelope on population exposure to PM2.5 from outdoor sources

Taylor, J; Shrubsole, C; Davies, M; Biddulph, P; Das, P; Hamilton, I; Vardoulakis, S; ... Oikonomou, E; + view all (2014) The modifying effect of the building envelope on population exposure to PM2.5 from outdoor sources. Indoor Air , 24 (6) 639- 651. 10.1111/ina.12116. Green open access

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Abstract

A number of studies have estimated population exposure to PM2.5 by examining modelled or measured outdoor PM2.5 levels. However, few have taken into account the mediating effects of building characteristics on the ingress of PM2.5 from outdoor sources and its impact on population exposure in the indoor domestic environment. This study describes how building simulation can be used to determine the indoor concentration of outdoor-sourced pollution for different housing typologies, and how the results can be mapped using building stock models and Geographical Information Systems (GIS) software to demonstrate the modifying effect of dwellings on occupant exposure to PM2.5 across London. Building archetypes broadly representative of those in the Greater London Authority (GLA) were simulated for pollution infiltration using EnergyPlus. In addition, the influence of occupant behaviour on indoor levels of PM2.5 from outdoor sources was examined using a temperature-dependent window-opening scenario. Results demonstrate a range of I/O ratios of PM2.5 , with detached and semi-detached dwellings most vulnerable to high levels of infiltration. When the results are mapped, central London shows lower I/O ratios of PM2.5 compared to outer London, an apparent inversion of exposure most likely caused by the prevalence of flats rather than detached or semi-detached properties. This article is protected by copyright. All rights reserved.

Type: Article
Title: The modifying effect of the building envelope on population exposure to PM2.5 from outdoor sources
Open access status: An open access version is available from UCL Discovery
DOI: 10.1111/ina.12116
Publisher version: http://dx.doi.org/10.1111/ina.12116
Language: English
Additional information: © 2014 The Authors. Indoor Air Published by John Wiley & Sons Ltd This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
Keywords: GIS, PM 2.5, EnergyPlus, Indoor Air Quality, building stock model
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment > Bartlett School Env, Energy and Resources
URI: https://discovery.ucl.ac.uk/id/eprint/1427037
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