Effect of green roof on ambient CO2concentration

Jian Feng Li; Wing Hong Onyx Wai; Yok Sheung Li; Jie Min Zhan; Y. Alexander Ho; James Li; Siu Shu Eddie Lam

doi:10.1016/j.buildenv.2010.05.025

Effect of green roof on ambient CO₂concentration

Jian Feng Li, Wing Hong Onyx Wai, Yok Sheung Li, Jie Min Zhan, Y. Alexander Ho, James Li, Siu Shu Eddie Lam

Research output: Journal article publication › Journal article › Academic research › peer-review

171 Citations (Scopus)

Abstract

Plants can improve air quality by removing pollutants. The air purification capability of plants has been receiving increasing attention because of the rapid deterioration of the environment. However, research on evaluating quantitatively the effect of plants on the environmental pollutant concentrations is still scarce. This paper studies the effect of a green roof on the ambient CO2concentration as an example to assess the benefit of urban greening. The study comprises three parts: (1) Field measurement of the difference of CO2concentration at a location in the middle of the plants in a small plot of green roof and one in the surrounding area, (2) Experiments to measure the plant's CO2absorption velocity and emission rate using a sealed glass chamber; and (3) Computer simulation of the CO2concentration distribution around a green roof using the measured CO2absorption velocity and emission rate to quantify the effects of the green roof on the ambient CO2concentration.

Original language	English
Pages (from-to)	2644-2651
Number of pages	8
Journal	Building and Environment
Volume	45
Issue number	12
DOIs	https://doi.org/10.1016/j.buildenv.2010.05.025
Publication status	Published - 1 Dec 2010

Keywords

Air quality
Chamber experiment
CO absorption velocity 2
Field measurement
Green roof
Numerical simulation

ASJC Scopus subject areas

Environmental Engineering
Civil and Structural Engineering
Geography, Planning and Development
Building and Construction

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

More information

10.1016/j.buildenv.2010.05.025

Cite this

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abstract = "Plants can improve air quality by removing pollutants. The air purification capability of plants has been receiving increasing attention because of the rapid deterioration of the environment. However, research on evaluating quantitatively the effect of plants on the environmental pollutant concentrations is still scarce. This paper studies the effect of a green roof on the ambient CO2concentration as an example to assess the benefit of urban greening. The study comprises three parts: (1) Field measurement of the difference of CO2concentration at a location in the middle of the plants in a small plot of green roof and one in the surrounding area, (2) Experiments to measure the plant's CO2absorption velocity and emission rate using a sealed glass chamber; and (3) Computer simulation of the CO2concentration distribution around a green roof using the measured CO2absorption velocity and emission rate to quantify the effects of the green roof on the ambient CO2concentration.",

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AU - Wai, Wing Hong Onyx

AU - Li, Yok Sheung

AU - Zhan, Jie Min

AU - Ho, Y. Alexander

AU - Li, James

AU - Lam, Siu Shu Eddie

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