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Environ Sci Pollut Res Int. 2014;21(13):7838-46. doi: 10.1007/s11356-014-2695-0. Epub 2014 Mar 19.

Assessment of volatile organic compound removal by indoor plants--a novel experimental setup.

Author information

1
Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Højbakkegaard Allé 30, 2630, Taastrup, Denmark, mjha@plen.ku.dk.

Abstract

Indoor plants can remove volatile organic compounds (VOCs) from the air. The majority of knowledge comes from laboratory studies where results cannot directly be transferred to real-life settings. The aim of this study was to develop an experimental test system to assess VOC removal by indoor plants which allows for an improved real-life simulation. Parameters such as relative humidity, air exchange rate and VOC concentration are controlled and can be varied to simulate different real-life settings. For example, toluene diffusion through a needle gave concentrations in the range of 0.10-2.35 μg/L with deviations from theoretical values of 3.2-10.5%. Overall, the system proved to be functional for the assessment of VOC removal by indoor plants with Hedera helix reaching a toluene removal rate of up to 66.5 μg/m(2)/h. The mode of toluene exposure (semi-dynamic or dynamic) had a significant influence on the removal rate obtained by H. helix.

PMID:
24638833
DOI:
10.1007/s11356-014-2695-0
[Indexed for MEDLINE]

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