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Remediation of mould damaged building materials-efficiency of a broad spectrum of treatments.

Peitzsch, Mirko; Bloom, Erica; Haase, Rocco; Must, Aime and Larsson, Lennart LU (2012) In Journal of Environmental Monitoring 14(3). p.908-915
Abstract
We compared the efficiency of some commercially available products and methods used for remediation of mould-contaminated building materials. Samples of gypsum board and pinewood were artificially contaminated with toxin-producing isolates of Stachybotrys chartarum and Aspergillus versicolor, respectively, then, ten different remediation treatments were applied according to the manufacturers' instructions. Microbial and chemical analyses of the infested materials were carried out both immediately before and after treatment, after six weeks of drying at room temperature, and after another six weeks of remoistening. The aim of the study was to determine whether the investigated methods could inhibit the mould growth and destroy some selected... (More)
We compared the efficiency of some commercially available products and methods used for remediation of mould-contaminated building materials. Samples of gypsum board and pinewood were artificially contaminated with toxin-producing isolates of Stachybotrys chartarum and Aspergillus versicolor, respectively, then, ten different remediation treatments were applied according to the manufacturers' instructions. Microbial and chemical analyses of the infested materials were carried out both immediately before and after treatment, after six weeks of drying at room temperature, and after another six weeks of remoistening. The aim of the study was to determine whether the investigated methods could inhibit the mould growth and destroy some selected mycotoxins produced by the moulds. None of the decontamination methods tested could completely eliminate viable moulds. Some methods, especially boron based chemicals, ammonium based chemicals, and oxidation reduced the contents of mycotoxins produced by S. chartarum (satratoxin G and H, verrucarol), whereas the one which uses an ammonium based chemical reduced the amount of sterigmatocystin produced by A. versicolor with statistical significance. No remediation treatment eliminated all the toxins from the damaged materials. These results emphasize the importance to work preventively with moisture safety throughout the construction processes and management to prevent mould growth on building materials. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Environmental Monitoring
volume
14
issue
3
pages
908 - 915
publisher
Royal Society of Chemistry
external identifiers
  • wos:000300875100019
  • pmid:22286589
  • scopus:84857707451
ISSN
1464-0325
DOI
10.1039/c2em10806b
language
English
LU publication?
yes
id
dcc7f316-9964-45fe-9aa4-1c899bf61ba0 (old id 2335938)
alternative location
http://www.ncbi.nlm.nih.gov/pubmed/22286589?dopt=Abstract
date added to LUP
2012-02-01 21:24:01
date last changed
2017-08-13 04:32:54
@article{dcc7f316-9964-45fe-9aa4-1c899bf61ba0,
  abstract     = {We compared the efficiency of some commercially available products and methods used for remediation of mould-contaminated building materials. Samples of gypsum board and pinewood were artificially contaminated with toxin-producing isolates of Stachybotrys chartarum and Aspergillus versicolor, respectively, then, ten different remediation treatments were applied according to the manufacturers' instructions. Microbial and chemical analyses of the infested materials were carried out both immediately before and after treatment, after six weeks of drying at room temperature, and after another six weeks of remoistening. The aim of the study was to determine whether the investigated methods could inhibit the mould growth and destroy some selected mycotoxins produced by the moulds. None of the decontamination methods tested could completely eliminate viable moulds. Some methods, especially boron based chemicals, ammonium based chemicals, and oxidation reduced the contents of mycotoxins produced by S. chartarum (satratoxin G and H, verrucarol), whereas the one which uses an ammonium based chemical reduced the amount of sterigmatocystin produced by A. versicolor with statistical significance. No remediation treatment eliminated all the toxins from the damaged materials. These results emphasize the importance to work preventively with moisture safety throughout the construction processes and management to prevent mould growth on building materials.},
  author       = {Peitzsch, Mirko and Bloom, Erica and Haase, Rocco and Must, Aime and Larsson, Lennart},
  issn         = {1464-0325},
  language     = {eng},
  number       = {3},
  pages        = {908--915},
  publisher    = {Royal Society of Chemistry},
  series       = {Journal of Environmental Monitoring},
  title        = {Remediation of mould damaged building materials-efficiency of a broad spectrum of treatments.},
  url          = {http://dx.doi.org/10.1039/c2em10806b},
  volume       = {14},
  year         = {2012},
}