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Can ornamental potted plants remove volatile organic compounds from indoor air? — a review

Environmental Science and Pollution Research volume 21, pages 13909–13928 (2014)Cite this article

Abstract

Volatile organic compounds (VOCs) are found in indoor air, and many of these can affect human health (e.g. formaldehyde and benzene are carcinogenic). Plants affect the levels of VOCs in indoor environments, thus they represent a potential green solution for improving indoor air quality that at the same time can improve human health. This article reviews scientific studies of plants’ ability to remove VOCs from indoor air. The focus of the review is on pathways of VOC removal by the plants and factors affecting the efficiency and rate of VOC removal by plants. Laboratory based studies indicate that plant induced removal of VOCs is a combination of direct (e.g. absorption) and indirect (e.g. biotransformation by microorganisms) mechanisms. They also demonstrate that plants’ rate of reducing the level of VOCs is influenced by a number of factors such as plant species, light intensity and VOC concentration. For instance, an increase in light intensity has in some studies been shown to lead to an increase in removal of a pollutant. Studies conducted in real-life settings such as offices and homes are few and show mixed results.

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Acknowledgment

The study was funded by a PhD grant from the University of Copenhagen, Faculty of Science, Denmark.

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Affiliations

  1. Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, HøjbakkegårdAllé 30, 2630, Taastrup, Denmark

    Majbrit Dela Cruz & Renate Müller

  2. Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Thorvaldsensvej 40, 1871, Frederiksberg C, Denmark

    Jan H. Christensen

  3. AgroTech A/S, Institute for Agri Technology and Food innovation, HøjbakkegårdAllé 21, 2630, Taastrup, Denmark

    Jane Dyrhauge Thomsen

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  1. Majbrit Dela Cruz
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  2. Jan H. Christensen
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  3. Jane Dyrhauge Thomsen
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  4. Renate Müller
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Correspondence to Majbrit Dela Cruz.

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Dela Cruz, M., Christensen, J.H., Thomsen, J.D. et al. Can ornamental potted plants remove volatile organic compounds from indoor air? — a review. Environ Sci Pollut Res 21, 13909–13928 (2014). https://doi.org/10.1007/s11356-014-3240-x

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Keywords

  • Indoor air
  • Volatile organic compounds
  • Plants
  • Pollutants
  • Removal
  • Purification