Fungal Contamination as a Major Contributor to Sick Building Syndrome

Li, De‐Wei; Yang, Chin S.

doi:10.1016/s0065-2164(04)55002-5

Cited by 71 publications

(40 citation statements)

References 158 publications

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“…Beyond these methodological considerations, these differences might also be related to the variations in water needs across genera and species. While various species of Aspergillus can grow on surfaces with water activity coefficients (Aw) lower than 0.8, Cladosporium is considered as mesophilic and require an Aw between 0.8 and 0.9 (Li and Yang, 2004).…”

Section: Determinants Of Airborne Mold Concentrationsmentioning

confidence: 99%

Concentration and determinants of molds and allergens in indoor air and house dust of French dwellings

Dallongeville

Cann

Zmirou‐Navier

et al. 2015

Science of The Total Environment

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Molds and allergens are common indoor biocontaminants. The aims of this study were to assess the concentrations of common molds in indoor air and floor dust and the concentrations of house dust mite, cat and dog allergens in mattress dust in French dwellings, and to assess predictors of these concentrations. A sample of 150 houses in Brittany (western France) was investigated.Airborne Cladosporium and Penicillium were detected in more than 90% of the dwellings, Aspergillus in 46% and Alternaria in only 6% of the housings. Regarding floor dust samples, Cladosporium and Penicillium were detected in 92 and 80% of the housings respectively, Aspergillus in 49% and Alternaria in 14%. House dust mite allergens Der p1 and Der f1 were detected in 90% and 77% of the mattress dust samples respectively and Can f1 and Fel d1 in 37% and 89% of the homes. Airborne and dustborne mold concentrations, although not statistically correlated (except for Aspergillus) shared most of their predictors. Multivariate linear models for mold levels, explaining up to 62% of the variability, showed an influence of the season, of the age of the dwelling, of aeration habits, presence of pets, smoking, signals of dampness, temperature and relative humidity. Allergens in the dust of the mattress were strongly related to the presence of pets and cleaning practices of bedsheets, these factors accounting for 60% of the variability. This study highlights ubiquitous contamination by molds and underlines complex interaction between outdoor and indoor sources and factors.3

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Section: Determinants Of Airborne Mold Concentrationsmentioning

confidence: 99%

Concentration and determinants of molds and allergens in indoor air and house dust of French dwellings

Dallongeville

Cann

Zmirou‐Navier

et al. 2015

Science of The Total Environment

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“…A few studies were conducted in buildings related to agricultural production, such as a mushroom farm, cotton mills, woolen mills, or a citrus warehouse (Crook and Olenchock 1995), but only one study has been conducted in greenhouses in Italy (Rodolfi et al 2003). Unfortunately, research data for dose/exposure level and response relationships are insufficient to establish practical thresholds for making public health decisions (Li and Yang 2004). It is important to conduct research in the greenhouse industry to better understand workers' occupational exposure to airborne fungi and their health significance to greenhouse workers.…”

Section: Introductionmentioning

confidence: 99%

Airborne fungi associated with ornamental plant propagation in greenhouses

LaMondia

2009

Aerobiologia

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The objective was to determine potential exposure to airborne fungi in greenhouses and to characterize the temporal patterns of airborne fungi in relation to environmental conditions. We analyzed air samples collected in two greenhouses. Results showed that the top 5 fungi in greenhouse 1 were Trichoderma, hyphal fragments, Aspergillus/Penicillium-like, Cladosporium, and Botrytis in a descending order. Those in greenhouse 2 were Aspergillus/ Penicillium-like, Cladosporium, Botrytis, yeast-like, and hyphal fragments. Maximum concentrations of Trichoderma and total spores in greenhouse 1 were 36,426 and 49,729 spores/m 3 , respectively. Maximum concentrations of Aspergillus/Penicillium and total spores in greenhouse 2 were 46,961 and 71,037 spores/m 3 , respectively. Airborne fungal populations fluctuated dramatically within 2 h during work hours, tenfold for Aspergillus/Penicillium, 66-fold for Trichoderma, and sevenfold for total spores. QPCR detected Trichoderma harzianum ranging from 7 to 3,500 conidia E/m 3 . Aspergillus/Penicillium and Botrytis showed diurnal patterns, but not Trichoderma. Aspergillus/Penicillium and Cladosporium were positively correlated with temperature, relative humidity, dew point, heat index, and light and negatively with air movement and air pressure. Botrytis and Trichoderma were not correlated with the environmental factors. Greenhouse workers were potentially exposed up to 71,037 spores/m 3 of airborne fungi.

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“…The majority of such fungi fall within the Ascomycetes and Deuteromycetes category (Kurup et al, 2000;Li and Yang, 2004). It is known that the fungi that cause infections in humans are Alternaria, *Jan, January; *Apr, April; *Jul, July; *Oct, October; *C, Carpet; *W, Wall; *P, Prayer beads.…”

Section: Discussionmentioning

confidence: 99%

A study on the fungi isolated from the carpeting, walls and prayer beads from the New Mosque and Nuruosmaniye Mosque situated in the province of Istanbul

PaÃ§a¹,

Ã‡olakoÄŸlu²

2017

J. Public Health Epidemiol.

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Mosques which are visited by many people every day, for both worship and touristic purposes, play an important role in the spread of infections in society. It is for this reason that research into the fungal concentrations found on the carpets, walls and prayer beads in mosques may prove instrumental in determining potential risks and in protecting the health of visitors. The sampling of fungus content from the carpeting, walls and prayer beads of two different mosques in the province of Istanbul was undertaken with the aim of determining fungi content and levels at two chosen stations in 2015 in the months of January, April, July and October. Samples were taken using dry sterile swabs. The samples brought to the laboratory were cultivated in Peptone-Dextrose Agar in appropriate conditions. The isolated fungi were spot cultivated in Malt Extract Agar (MEA) medium and pure colonies were detected. The preparations extracted from the pure culture of the fungi were examined using a microscope. In the sampling carried out for a duration of four months, 190 colonies were detected. As a result of the study undertaken, 18 different species from 8 genera were isolated. The genera identified were as follows; Alternaria, Aspergillus, Chaetomium, Cladosporium, Penicillium, Scopulariopsis, Trichoderma and Ulocladium. Amongst the genera, the 3 most commonly detected ones were; Aspergillus, 53.2% Penicillium 24.2% and Cladosporium, 14.2%. As a result of the study, the species most isolated, in order, are as follows: Aspergillus fumigatus at 25.8% Aspergillus flavus at 12.7%, Aspergillus parasiticus at 10%, Cladosporium sphaerospermum and Penicillium palitans at 8.4% respectively, Penicillium citreonigrum at 7.4%, Cladosporium cladosporioides at 6.3%, Penicillium citrinum at 5.8%, Chaetomium globosum at 4.2%, Aspergillus niger at 3.2%, Penicillium solitum and Trichoderma longibrachiatum at 1.6% respectively, Alternaria citri, Emericella nidulans and Penicillium chrysogenum at 1.05% respectively and Aspergillus sydowii, Scopulariopsis brevicaulis and Ulocladium alternariae at 0.5% respectively.

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Fungal Contamination as a Major Contributor to Sick Building Syndrome

Cited by 71 publications

References 158 publications

Concentration and determinants of molds and allergens in indoor air and house dust of French dwellings

Concentration and determinants of molds and allergens in indoor air and house dust of French dwellings

Airborne fungi associated with ornamental plant propagation in greenhouses

A study on the fungi isolated from the carpeting, walls and prayer beads from the New Mosque and Nuruosmaniye Mosque situated in the province of Istanbul

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