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KMID : 1024220140290010014
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Environmental Health and Toxicology : EHT
2014 Volume.29 No. 1 p.14 ~ p.14
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House-plant placement for indoor air purification and health benefits on asthmatics
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:Kim Ho-Hyun
:Yang Ji-Yeon/:Lee Jae-Young/:Park Jung-Won/:Kim Kwang-Jin/:Lim Byung-Seo/:Lee Geon-Woo/:Lee Si-Eun/:Shin Dong-Chun/:Lim Young-Wook
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Abstract
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Objectives: Some plants were placed in indoor locations frequented by asthmatics in order to evaluate the quality of indoor air and examine the health benefits to asthmatics.
Methods: The present study classified the participants into two groups: households of continuation and households of withdrawal by a quasi-experimental design. The households of continuation spent the two observation terms with indoor plants, whereas the households of withdrawal passed the former observation terms with indoor plants and went through the latter observation term without any indoor plants.
Results: The household of continuation showed a continual decrease in the indoor concentrations of volatile organic compounds (VOCs) during the entire observation period, but the household of withdrawal performed an increase in the indoor concentrations of VOCs, except formaldehyde and toluene during the latter observation term after the decrease during the former observation term. Peak expiratory flow rate (PEFR) increased in the households of continuation with the value of 13.9 L/min in the morning and 20.6 L/ min in the evening, but decreased in the households of withdrawal with the value of -24.7 L/min in the morning and -30.2 L/min in the evening in the first experimental season. All of the households exhibited a decrease in the value of PEFR in the second experimental season.
Conclusions: Limitations to the generalizability of findings regarding the presence of plants indoors can be seen as a more general expression of such a benefit of human-environment relations.
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KEYWORD
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Asthma, Formaldehyde, Health, House-plant, Indoor air quality, Volatile organic compounds
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