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Related Experiment Video

Updated: Jun 22, 2025

Assessing the Particulate Matter Removal Abilities of Tree Leaves
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Advancing Methodologies for Investigating PM2.5 Removal Using Green Wall System.

Claudia Falzone1, Hugues Jupsin2, Moussa El Jarroudi2

  • 1Research Unit SPHERE, Sensing of Atmospheres and Monitoring Laboratory, Department of Environmental Sciences and Management, University of Liege, 6700 Arlon, Belgium.

Plants (Basel, Switzerland)
|June 27, 2024
PubMed
Summary
This summary is machine-generated.

Plant walls can help reduce indoor air pollution by capturing fine particulate matter. Dracaena fragrans demonstrated a 44% higher iron particle retention rate than wallpaper.

Keywords:
PM2.5climatic chamberdry depositiongreen wallindoor air quality

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Area of Science:

  • Environmental Science
  • Indoor Air Quality Research
  • Plant Biology

Background:

  • Combustion processes are a major source of indoor fine particulate matter.
  • Plants have been investigated since the 1970s for their potential to mitigate indoor air pollution.
  • Leaf surface characteristics, such as wax and hairs, influence particle retention.

Purpose of the Study:

  • To evaluate the depolluting effect of plant walls on airborne metal oxide particles.
  • To introduce and validate an innovative experimental approach for assessing plant-based air purification.
  • To quantify particle deposition on plant leaves in an office-like setting.

Main Methods:

  • Installation of two plant walls with three species (Aglaonema, Dracaena, Epipremnum) in a controlled room.
  • Introduction of metal oxide particles using a compressed air blower.
  • Monitoring of PM2.5 concentrations and quantification of iron deposition via ICP-MS.

Main Results:

  • The methodology effectively quantified airborne particle concentrations and leaf deposition.
  • Dracaena fragrans exhibited a 44% higher iron particle retention rate compared to a wallpaper control.
  • Real-time sensors and ICP-MS proved useful for assessing depollution effects.

Conclusions:

  • Plant walls show potential for reducing indoor particulate matter.
  • Dracaena fragrans is a promising species for indoor air purification due to its particle retention capabilities.
  • Further research involving methodological replication is needed to confirm findings.