An investigation of formaldehyde concentration in residences and the development of a model for the prediction of its emission rates

Baizhan Li, Zhu Cheng, Runming Yao, Han Wang, Wei Yu, Zhongming Bu, Jie Xiong, Tujingwa Zhang, Emmanuel Essah, Zhiwen Luo, Mehdi Shahrestani, Howard Kipen

Research output: Contribution to journalArticle

Abstract

Indoor air pollution caused by formaldehyde associated with building materials imposes a variety of acute and chronic adverse effects on people's health. The aim of this research is to investigate the concentrations of formaldehyde in residences and develop emission rate prediction model in residential buildings. On-site measurements including the indoor and outdoor concentrations of formaldehyde and CO2 were carried out in 42 urban residences in Chongqing. The people occupancy schedule in different functional rooms was obtained by observing the change in CO2 concentration. A robust model for the estimation of formaldehyde emission rates using CO2 as the tracer gas; associated with a Monte-Carlo simulation of occupant activities and the characteristics of residences; has been developed. It is revealed that the mean indoor formaldehyde concentration was 30.12 μg/m3, which was slightly higher than the outdoor concentration of 27.80 μg/m3. The emission rates of 61.82 ± 52.39 and 49.69 ± 42.13μg/h/m2 (mean ± SD) during the daytime and nighttime, respectively with a daily average of 57.20 ± 48.79μg/h/m2. The significant contribution to indoor formaldehyde concentration was from indoor sources. Indoor formaldehyde source control is suggested to be an efficient way to control the indoor concentration.

Original languageEnglish (US)
Pages (from-to)540-550
Number of pages11
JournalBuilding and Environment
Volume147
DOIs
StatePublished - Jan 1 2019
Externally publishedYes

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formaldehyde
Formaldehyde
prediction
residential building
air pollution
Indoor air pollution
simulation
health
rate
tracer
Health
Gases
gas

Cite this

Li, Baizhan ; Cheng, Zhu ; Yao, Runming ; Wang, Han ; Yu, Wei ; Bu, Zhongming ; Xiong, Jie ; Zhang, Tujingwa ; Essah, Emmanuel ; Luo, Zhiwen ; Shahrestani, Mehdi ; Kipen, Howard. / An investigation of formaldehyde concentration in residences and the development of a model for the prediction of its emission rates. In: Building and Environment. 2019 ; Vol. 147. pp. 540-550.
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An investigation of formaldehyde concentration in residences and the development of a model for the prediction of its emission rates. / Li, Baizhan; Cheng, Zhu; Yao, Runming; Wang, Han; Yu, Wei; Bu, Zhongming; Xiong, Jie; Zhang, Tujingwa; Essah, Emmanuel; Luo, Zhiwen; Shahrestani, Mehdi; Kipen, Howard.

In: Building and Environment, Vol. 147, 01.01.2019, p. 540-550.

Research output: Contribution to journalArticle

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AU - Li, Baizhan

AU - Cheng, Zhu

AU - Yao, Runming

AU - Wang, Han

AU - Yu, Wei

AU - Bu, Zhongming

AU - Xiong, Jie

AU - Zhang, Tujingwa

AU - Essah, Emmanuel

AU - Luo, Zhiwen

AU - Shahrestani, Mehdi

AU - Kipen, Howard

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