Fungal growth and survival in building materials under fluctuating moisture and temperature conditions

Pasanen, Anna‐Liisa; Kasanen, Jukka-Pekka; Rautiala, Sirpa; Ikäheimo, Marko; Rantamäki, Jouko; Kääriäinen, Hannu; Kalliokoski, Pentti

doi:10.1016/s0964-8305(00)00093-7

Cited by 136 publications

(87 citation statements)

References 11 publications

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“…It has been reported that bioaerosols vary with location, season, climate and time of the day (Hyvärinen et al, 2001;Levetin et al, 1995;Li and Kuo, 1993;Medrela-Kuder, 2003). It has also been reported that the moisture content of building material (Pasanen et al 2000;Viitanen et al, 2000), outdoor concentrations, indoor /outdoor exchange rates (Kulmala et al, 1999), number of people and animals (ACGIH, 1999) and human activities (Buttner and Stetzenbach, 1993) affect the indoor concentration of bioaerosols. Once in the indoor environment, bioaersols can impact on different surfaces, accumulate, resuspend and may grow on various indoor surfaces depending on the availability of ecological niches.…”

Section: Introductionmentioning

confidence: 99%

Winter Time Concentrations and Size Distribution of Bioaerosols in Different Residential Settings in the UK

Nasir

Colbeck

2012

Water Air Soil Pollut

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The total concentration and size distribution of bioaerosols in three different types of housing (single room in shared accommodation (type I), single bedroom flat in three storey building (type II) and two or three bedroom detached houses (type III)) was assessed during the winter. This research was an extension of a previous study carried out in the summer. The measurement campaign was undertaken in winter 2008 and thirty houses were sampled. Samples were taken from kitchens, living rooms, corridors (only in housing type I) and outdoors with an Anderson 6 stage viable impactor. In housing type I the total geometric mean concentration was highest in the corridor for both bacteria and fungi (3171 CFU/m 3 , 1281 CFU/m 3 ). In type II residences both culturable bacteria and fungi were greatest in the living rooms (3487 CFU/m 3 , 833 CFU/m 3 ). The living rooms in type III residences had largest number of culturable bacteria (1361 CFU/m 3 ) while fungi were highest in kitchens (280 CFU/m 3 ). The concentrations of culturable bacteria and fungi were greater in mouldy houses than non-mouldy houses. A considerable variation was seen in the size distribution of culturable bacteria in type I residences compared to types II and III. For all housing types more than half of culturable bacterial and fungal aerosol were respirable (<4.7μm) and so have the potential to penetrate into lower respiratory system. Considerable variation in concentration and size distribution within different housing types in the same geographical region highlights the impact of differences in design, construction, use and management of residential built environment on bioaerosols levels and consequent varied risk of population exposure to airborne biological agents.

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Section: Introductionmentioning

confidence: 99%

Winter Time Concentrations and Size Distribution of Bioaerosols in Different Residential Settings in the UK

Nasir

Colbeck

2012

Water Air Soil Pollut

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“…Aspergillus sp., Penicillium sp., and Trichoderma sp. readily, and often preferentially, colonize solid wood and wood-based building materials when they are subjected to moisture and temperature conditions conducive to spore germination (Pasanen et al, 2000;Bech-Andersen and Elborne, 2003;Nielsen et al, 2004).…”

Section: Mouldmentioning

confidence: 99%

“…Members of the first two of these genera are prominent among ''indoor moulds'' reported in buildings in several parts of the world (Flannigan and Miller, 1993). Species in all three mould genera readily, and often preferentially, colonize solid wood and wood-based building materials under moisture and temperature conditions conducive to spore germination (Pasanen et al, 2000;Bech-Andersen and Elborne, 2003;Nielsen et al, 2004). The objectives of the present study were to (1) develop multi-component biocide systems to inhibit mould growth on wood, (2) evaluate these systems for their ability to inhibit decay fungi and termites, and (3) evaluate individual components of these systems for synergistic biocidal properties.…”

Section: Introductionmentioning

confidence: 99%

Protecting wood from mould, decay, and termites with multi-component biocide systems

Clausen

Yang

2007

International Biodeterioration & Biodegradation

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Biocides must be developed for controlling mould establishment on cellulose-based building materials. Accordingly, biocides intended for indoor applications must be non-toxic, non-volatile, odourless, hypoallergenic, and able to provide long-term protection under conditions of high humidity. Multi-component biocide systems were tested in American Wood-Preservers' Association soil block tests for inhibition of brown-rot and white-rot decay fungi and American Society for Testing and Materials standard tests for inhibition of mould fungi and termites. Multi-component systems combining a borate base supplemented with either 0.1% azole or 0.5% thujaplicin, performed well against the two brown-rot fungi Postia placenta and Gloeophyllum trabeum; the white-rot fungus Coriolus versicolor; the three mould fungi Aspergillus niger, Penicillium chrysogenum, and Trichoderma viride; and the subterranean termite Reticulitermes flavipes (Kollar). It was concluded that for interior applications borate-based multi-component biocide systems can protect wood from decay fungi, mould fungi, and termites, and that a system containing thiabendazole provided protection at a lower retention than the other biocides in this study. Synergy was observed between the borate base and voriconazole in inhibition of mould. Published by Elsevier Ltd.

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“…The duration of wet and dry periods is critical for the development of fungal growth under fl uctuating conditions, because the oscillation between favourable and unoptimal periods slows the fungal growth compared to continuous optimal conditions. In addition, fungal spores possibly survive the fl uctuating temperature and moisture conditions (Pasanen et al 2000). On the other hand, alternating periods of wet and dry conditions can be highly effective in spreading some diseases, as the wet periods encourage the formation of spores while the dry ones encourage their distribution (Mercer 1992).…”

Section: Introductionmentioning

confidence: 99%

Microbial quality of linseed and fibre hemp plants during growing and harvest seasons

Koivula¹,

Kymäläinen²,

Vanne³

et al. 2008

AFSci

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Fungal growth and survival in building materials under fluctuating moisture and temperature conditions

Cited by 136 publications

References 11 publications

Winter Time Concentrations and Size Distribution of Bioaerosols in Different Residential Settings in the UK

Winter Time Concentrations and Size Distribution of Bioaerosols in Different Residential Settings in the UK

Protecting wood from mould, decay, and termites with multi-component biocide systems

Microbial quality of linseed and fibre hemp plants during growing and harvest seasons

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