Faculté des Sciences
Faculté des Sciences

Assessment of the effect of passive green walls on volatile organic compounds in an office sized chamber

Gonçalves Prazelos, Eduardo Feliciano ULiège
Promotor(s) : Falzone, Claudia ULiège ; Romain, Anne-Claude ULiège
Date of defense : 4-Sep-2023/8-Sep-2023 • Permalink :
Title : Assessment of the effect of passive green walls on volatile organic compounds in an office sized chamber
Author : Gonçalves Prazelos, Eduardo Feliciano ULiège
Date of defense  : 4-Sep-2023/8-Sep-2023
Advisor(s) : Falzone, Claudia ULiège
Romain, Anne-Claude ULiège
Committee's member(s) : Jupsin, Hugues ULiège
Pailhès, Malika 
mertens, Aurèlie 
Language : English
Keywords : [en] VOC
[en] Volatile Organic Compounds
[en] Green walls
[en] Living walls
[en] Phytoremediation
[en] Indoor air quality
[en] TD-GCMS
Discipline(s) : Life sciences > Environmental sciences & ecology
Institution(s) : Université de Liège, Liège, Belgique
Degree: Master en sciences et gestion de l'environnement, à finalité spécialisée
Faculty: Master thesis of the Faculté des Sciences


[en] This Master's thesis concerns the assessment of the effect of passive green walls on indoor air
quality in terms of VOCs by means of punctual (Tenax®TA) and continuous (Radiello®) sampling
in the context of the “Green4Indoor Wallonia” project.
The tests were conducted in an office sized, temperature controlled chamber submitted to
climatic sequences simulated in a buffer zone in order to replicate exterior temperature
fluctuations in summer and winter. The composition and concentrations of VOCs inside the
chamber were assessed in empty chamber tests, tests with an added VOC source (painted
gypsum board), and tests with green walls plus an added VOC source, all according to the
various climatic simulations. The samples were analyzed by TD-GCMS and results were
assessed through visual inspection of data by means of graphical representations.
The results show that tests with green walls during winter simulations present lower VOC
concentrations than tests without green walls irrespective of sampling methods. For summer
simulation tests with green walls, Tenax®TA results also present lower VOC concentrations
whereas Radiello® results present higher VOC concentrations when compared to tests without
green walls. Given the multitude of constraints, confounding factors and problems
encountered, the exact cause behind the discrepancies cannot be determined. The limitations
and shortcomings of the experimental methodology were also discussed in order to propose
improvements for potential future experiments involving green walls.



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  • Gonçalves Prazelos, Eduardo Feliciano ULiège Université de Liège > Master sc. & gest. env., à fin.


Committee's member(s)

  • Jupsin, Hugues ULiège Université de Liège - ULiège > DER Sc. et gest. de l'environnement (Arlon Campus Environ.) > DER Sc. et gest. de l'environnement (Arlon Campus Environ.)
    ORBi View his publications on ORBi
  • Pailhès, Malika
  • mertens, Aurèlie
  • Total number of views 27
  • Total number of downloads 36

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