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A study on plant effects on decontamination of polluted indoor air with formaldehyde

  • Journal of Environmental Impact Assessment
  • Abbr : J EIA
  • 2005, 14(4), pp.147-155
  • Publisher : Korean Society Of Environmental Impact Assessment
  • Research Area : Engineering > Environmental Engineering

KI JUNE SUNG 1 Young-Kee Jang 2 박소영 3 김정 2

1부경대학교
2수원대학교
3(주)오이코스

Accredited

ABSTRACT

This study was designed to investigate the effect of plant as a botanical air purification on theindoor pollution by formaldehyde. Three indoor plants such as Dracaena marhginata,Spathiphyllum and Dracaena reflexa, were placed in the artificially contaminated reactor underlaboratory condition. Both plant and soil effects on removal of formaldehyde from contaminatedindoor air were observed. Reductions in the formaldehyde levels appeared to have beenassociated with soil medium factors as well as plant factors. The effect of soil on formaldehydereduction was high in the early stage of the experiment and the results suggest that sorptioncould be more important factor than microbial degradation in the initial dissipation ofcontaminants in the soil. It was suggested that the effect of plant on formaldehyde reductionmight be related to the plant species, total leaf surface area of plant, degree of contribution of soilmedium, and exposed concentration level. The results of this study showed that air purificationusing plants is an effective means of reduction on indoor formaldehyde level, though, utilizationof soil media with high sorption capacity and/or supplementary purifying aids were alsosuggested when the source is continuous or exposed concentration level is high.

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