Cooper, Elizabeth;
Milner, James;
Wang, Yan;
Stamp, Samuel;
Mumovic, Dejan;
(2022)
Modelling the impact on mortality of using portable air purifiers to reduce PM2.5 in UK homes.
Atmospheric Environment
, 289
, Article 119311. 10.1016/j.atmosenv.2022.119311.
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Abstract
This work assessed the potential impact on mortality and life expectancy that would occur due to reductions of indoor PM2.5 in dwellings in the UK using portable air purifiers. Reductions in indoor PM2.5 concentrations from air purifier use were modelled using findings from the literature for mean air purifier efficiency, mean indoor PM2.5 concentrations associated with air purifier use, and the relative risks associated with exposure. Life-table models were used to estimate changes to mortality from the following PM2.5-associated diseases: lung cancer, lower respiratory infection (LRI), chronic obstructive pulmonary disease (COPD), ischemic heart disease (IHD), and stroke. Different scenarios were modelled to represent a range of daily use patterns, the starting age of use and the duration of the intervention. The overall impact of the central scenario, in which air purifiers were used during all hours whilst at home (15.6 h) for the entirety of the modelled period (birth to 97 years), was to increase life expectancy in the birth cohort by, on average, 138 and 120 days for males and females, respectively, and to add more than 23 million years of life (YLG) to the UK population. When used at home, air purifiers reduced indoor PM2.5 concentrations and prolonged life expectancy, but questions regarding feasibility of the intervention, occupant behaviour and social inequities remain. The estimation of the impact of use by the whole population is, however, important for informing policy and designing interventions.
| Type: | Article |
|---|---|
| Title: | Modelling the impact on mortality of using portable air purifiers to reduce PM2.5 in UK homes |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.atmosenv.2022.119311 |
| Publisher version: | https://doi.org/10.1016/j.atmosenv.2022.119311 |
| Language: | English |
| Additional information: | © 2022 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). |
| Keywords: | Air purifier, Particulate matter, Life-table model, Housing, Indoor air quality, Health impact assessment |
| UCL classification: | 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 UCL > Provost and Vice Provost Offices > UCL BEAMS UCL |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10153703 |
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