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Land cover and air pollution are associated with asthma hospitalisations: A cross-sectional study.

Alcock, I; White, M; Cherrie, M; Wheeler, B; Taylor, J; McInnes, R; Otte Im Kampe, E; ... Fleming, L; + view all (2017) Land cover and air pollution are associated with asthma hospitalisations: A cross-sectional study. Environment International , 109 pp. 29-41. 10.1016/j.envint.2017.08.009. Green open access

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Abstract

BACKGROUND: There is increasing policy interest in the potential for vegetation in urban areas to mitigate harmful effects of air pollution on respiratory health. We aimed to quantify relationships between tree and green space density and asthma-related hospitalisations, and explore how these varied with exposure to background air pollution concentrations. METHODS: Population standardised asthma hospitalisation rates (1997-2012) for 26,455 urban residential areas of England were merged with area-level data on vegetation and background air pollutant concentrations. We fitted negative binomial regression models using maximum likelihood estimation to obtain estimates of asthma-vegetation relationships at different levels of pollutant exposure. RESULTS: Green space and gardens were associated with reductions in asthma hospitalisation when pollutant exposures were lower but had no significant association when pollutant exposures were higher. In contrast, tree density was associated with reduced asthma hospitalisation when pollutant exposures were higher but had no significant association when pollutant exposures were lower. CONCLUSIONS: We found differential effects of natural environments at high and low background pollutant concentrations. These findings can provide evidence for urban planning decisions which aim to leverage health co-benefits from environmental improvements.

Type: Article
Title: Land cover and air pollution are associated with asthma hospitalisations: A cross-sectional study.
Location: Netherlands
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.envint.2017.08.009
Publisher version: https://doi.org/10.1016/j.envint.2017.08.009
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Air pollutants, Allergy, Ecosystem management, Green space, Pollen, Urban land use
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/1576141
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