Volatile organic compounds, SO2 and NO2 capture by means of an indoor active living wall
The ability of an active living wall (ALW) to capture indoor air pollutants was studied. Five different species (Spathiphyllum wallisii, Tradescantia zebrina, Philodendron scandens, Ficus pumila and Chlorophytum comosum) were assessed. The experiments were performed inside a closed glass chamber for...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2026 |
| País: | España |
| Institución: | Universidad de Sevilla (US) |
| Repositorio: | idUS. Depósito de Investigación de la Universidad de Sevilla |
| OAI Identifier: | oai:idus.us.es:11441/182749 |
| Acceso en línea: | https://hdl.handle.net/11441/182749 https://doi.org/10.1016/j.atmosenv.2026.121856 |
| Access Level: | acceso abierto |
| Palabra clave: | SO2 NO2 Formaldehyde (CH2O) TVOCs Vertical greening systems Indoor air quality (IAQ) |
| Sumario: | The ability of an active living wall (ALW) to capture indoor air pollutants was studied. Five different species (Spathiphyllum wallisii, Tradescantia zebrina, Philodendron scandens, Ficus pumila and Chlorophytum comosum) were assessed. The experiments were performed inside a closed glass chamber for each species separately. Gas pol lutants (NO2 and SO2) and volatile organic compounds (formaldehyde, acetone, n-hexane and n-heptane) were introduced into the chamber monitoring concentration changes. High values of the Pollutant Reduction (PR%) indicator were recorded after releasing pollutants in the chamber, especially for CH2O and SO2. After 24 h, PR% in the chamber ranged 96-98% for all the plant species studied. The ALW was more efficient in removing CH2O and NO2 than other air contaminants. In addition, differences in Differential Reduction Efficiency (DRE%) in dicator were observed among plant species depending on the pollutant considered. After 15 min from the in jection of TVOCs, a reduction of 24-40% was achieved with all plant species but S. wallisii showed greater DRE for NO2, with 60% reduction in the first hour of exposure. The presented data demonstrates the effectiveness of active living wall systems for improving indoor air quality |
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