The impact of green walls on air pollution and thermal comfort at pedestrian level in street canyon
The impact of green walls on air pollution and thermal comfort at pedestrian level in street canyon
Urban areas grapple with challenges like poor air quality from traffic and increasing summer heat due to heat-absorbing surfaces such as concrete and asphalt. Green infrastructure offers solutions but faces limitations in urban settings. This study explores green walls as an alternative to improving air quality and outdoor comfort. Three scenarios were tested: base case (BC), green wall (GW), and green wall with trees (GW+T), using ENVI-met. The green wall's impact was prominent on the windward side against prevailing pollution. In the afternoon, it notably reduced NO2 by up to 32% and PMs by 31% compared to BC. Additionally, green walls lowered mean radiant temperature by up to 5°C, especially in peak high temperatures. This study underscores the potential of green walls as an effective means of mitigating urban air pollution and enhancing summer outdoor comfort, especially when incorporated strategically.
Laurel, Raymund
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Gauthier, Stephanie
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Nicol, Fergus
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Brotas, Luisa
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Schiano-Phan, Rosa
5a80d383-3e96-462e-bc0b-4a5127e019c7
15 September 2023
Laurel, Raymund
bc2a5ca1-1764-4635-bcfa-df846d60b76f
Gauthier, Stephanie
4e7702f7-e1a9-4732-8430-fabbed0f56ed
Nicol, Fergus
55e3b6e4-885d-4aa4-96a8-441ed11e1eaa
Brotas, Luisa
44ab859c-b1ab-40a3-aedf-82d4f7624f09
Schiano-Phan, Rosa
5a80d383-3e96-462e-bc0b-4a5127e019c7
Laurel, Raymund
(2023)
The impact of green walls on air pollution and thermal comfort at pedestrian level in street canyon.
Gauthier, Stephanie, Nicol, Fergus, Brotas, Luisa and Schiano-Phan, Rosa
(eds.)
12th Masters Conference: People and Buildings, University of Westminster, London, United Kingdom.
15 Sep 2023.
6 pp
.
(doi:10.5258/SOTON/P1148).
Record type:
Conference or Workshop Item
(Paper)
Abstract
Urban areas grapple with challenges like poor air quality from traffic and increasing summer heat due to heat-absorbing surfaces such as concrete and asphalt. Green infrastructure offers solutions but faces limitations in urban settings. This study explores green walls as an alternative to improving air quality and outdoor comfort. Three scenarios were tested: base case (BC), green wall (GW), and green wall with trees (GW+T), using ENVI-met. The green wall's impact was prominent on the windward side against prevailing pollution. In the afternoon, it notably reduced NO2 by up to 32% and PMs by 31% compared to BC. Additionally, green walls lowered mean radiant temperature by up to 5°C, especially in peak high temperatures. This study underscores the potential of green walls as an effective means of mitigating urban air pollution and enhancing summer outdoor comfort, especially when incorporated strategically.
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MC2023_Laurel_Raymund
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Published date: 15 September 2023
Venue - Dates:
12th Masters Conference: People and Buildings, University of Westminster, London, United Kingdom, 2023-09-15 - 2023-09-15
Identifiers
Local EPrints ID: 488423
URI: http://eprints.soton.ac.uk/id/eprint/488423
PURE UUID: 99170a96-684e-42dc-a187-bca12031f5c8
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Date deposited: 22 Mar 2024 17:37
Last modified: 23 Mar 2024 02:49
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Contributors
Author:
Raymund Laurel
Editor:
Fergus Nicol
Editor:
Luisa Brotas
Editor:
Rosa Schiano-Phan
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