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Effects of window status and indoor plants on air quality, air temperature, and relative humidity: a pilot study

Few empirical studies have examined the simultaneous effects of window opening and indoor plants on air characteristics. This study compared the effects of four variables, day/night, window status, plant distance, and number of plants, on air characteristics in a room at a basement via experiments....

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Bibliographic Details
Published in:Journal of Asian architecture and building engineering 2024-01, Vol.ahead-of-print (ahead-of-print), p.1-12
Main Author: Han, Ke-Tsung
Format: Article
Language:English
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Summary:Few empirical studies have examined the simultaneous effects of window opening and indoor plants on air characteristics. This study compared the effects of four variables, day/night, window status, plant distance, and number of plants, on air characteristics in a room at a basement via experiments. This was because plants perform photosynthesis during the day, which produces O 2 and absorbs CO 2 , whereas they usually produce only CO 2 at night. Moreover, a higher number of potted plants and a shorter distance to the plants are expected to generate greater air purification outcomes. Results included: (1) during the day and at night, the ventilation created by opening a window outperformed the transpiration from indoor plants in temperature reduction and humidity enhancement; (2) placing either three or eight potted plants indoor exhibited greater performance in reducing particulate matter (PM 2.5 and PM 10 ) and TVOC levels than opening a window; (3) a shorter distance (1.5 m) to the plant proved more effective in temperature reduction, humidity enhancement, and TVOC purification, whereas a longer distance (3.0 m) was discovered to have more effect on PM 2.5 and PM 10 reduction; and (4) eight potted plants significantly outperformed three in reducing temperature and increasing humidity.
ISSN:1346-7581
1347-2852
DOI:10.1080/13467581.2023.2238027