Aspergillus fumigatus and mesophilic moulds in air in the surrounding environment downwind of non-hazardous waste landfill sites

Schlosser, O.; Salais, Robert; Debeaupuis, Catherine

doi:10.1016/j.ijheh.2016.02.003

Cited by 29 publications

(27 citation statements)

References 64 publications

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“…low temperature reducing the survival rate of microorganisms. Similar results were published by other researchers investigating air quality at sanitation facilities (Kołwzan et al 2012, Miaśkiewicz-Pęska and Szyłak-Szydłowski 2015, Schlosser et al 2016.…”

Section: Discussionsupporting

confidence: 90%

Microbial air contamination on the premises of the sewage treatment plant in Bydgoszcz (Poland) and antibiotic resistance of Staphylococcus spp.

Małecka-Adamowicz

Donderski

Kolet

2017

Archives of Environmental Protection

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Abstract:The study was aimed at evaluating microbial contamination on the premises of the sewage treatment plant by determining the concentrations of selected groups of airborne microorganisms. Another objective was to determine the antibiotic sensitivity patterns of isolated strains of staphylococci. The research was conducted in a seasonal cycle, by the impaction method using Merck MAS-100 air sampler. Samples were collected at six sites, each representing a different stage of sewage treatment. The susceptibility of isolated staphylococci was assessed with the disc-diffusion method, following the recommendations of the EUCAST. The results indicate that the microbial population in the air of the investigated area was dominated by mold fungi, whose highest average concentration was recorded at site IV located near the fi nal clarifi er ). Heterotrophic bacteria and mannitol-positive staphylococci were the most numerous at locations where sewage undergoes primary treatment. In each subseuqent stage the number of microorganisms emitted into the air from the sewage was lower. Antibiograms show that more than 50% of Staphylococcus spp. exhibited resistance to penicillin and 20% to rifampicin. In addition, 90% of the analyzed strains were sensitive to other antibiotics. The fungal community included the following genera: Cladosporium, Fusarium, Alternaria, Penicillium, Aspergillus, Aureobasidium, and Acremonium.The highest air contamination with all studied groups of microorganisms was recorded at the locations where mechanical sewage treatment was performed. During the subsequent stages lower numbers of heterotrophic bacteria were emitted into the air.The air in the investigated sewage treatment plant did not contain multidrug-resistant staphylococci.

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Section: Discussionsupporting

confidence: 90%

Microbial air contamination on the premises of the sewage treatment plant in Bydgoszcz (Poland) and antibiotic resistance of Staphylococcus spp.

Małecka-Adamowicz

Donderski

Kolet

2017

Archives of Environmental Protection

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“…The concentrations of airborne fungi within the landfill area range usually between 10 3 to 10 4 cfu m -3 (Kaarakainen et al 2008;Kalwasińska et al 2014;Abdel Hameed et al 2015;Schlosser et al 2016). Although fungal abundance may differ among respective landfill sites and surrounding area, most studies have been typically reporting mean values as representative for the whole landfill area.…”

Section: Quantitative Analysis Of Fungal Aerosolmentioning

confidence: 99%

“…Seasonal climatic changes condition both growth and survival of microbial propagules in the air, and are strictly connected with microclimatic zones (Fang et al 2008;Kaarakainen et al 2008;Abdel Hameed et al 2015;Schlosser et al 2016). For example, Huang et al (2002) found higher concentrations of airborne fungi in winter what was attributed to geographic characteristics of the sampling area located in southern Taiwan.…”

Section: Quantitative Analysis Of Fungal Aerosolmentioning

confidence: 99%

“…Different fungal diseases, mostly those of respiratory system (e.g. allergic alveolitis and asthma), if reported are a consequence of inhalation of particles smaller than 5 lm in diameter that easily penetrates lower respiratory tract (Douwes et al 2003;Menzies et al 2011;Denning et al 2014;Schlosser et al 2016). The biological threat grows when the bioaerosol community includes some opportunistic or even pathogenic fungal species.…”

Section: Introductionmentioning

confidence: 99%

“…These organisms (e.g. Aspergillus fumigatus and A. flavus) proliferate in composting substrates, which are their major source of emission into the air (Fischer et al 1999;Krikštaponis et al 2001;Abdel Hameed et al 2015;Schlosser et al 2016). Among a relatively broad spectrum of fungal species, an identification of strains that show cytotoxic activity in exposed hosts is of special concern.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Fungal air contamination in distinct sites within a municipal landfill area

Frączek

Kozdrój

Górny

et al. 2017

Int. J. Environ. Sci. Technol.

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Municipal wastes collected in landfills are a significant source of air contamination and frequently characterize by elevated concentrations of different fungi. Posing a serious health threat to landfill workers and local residents, the fungal aerosol has to be monitored with respect to its quantity and quality. In this study, concentrations of airborne fungi, their particle size distribution, species composition and the presence of cytotoxic strains of Aspergillus fumigatus were assessed in different sites within the landfill area. The quantitative and qualitative changes in the fungal aerosol were determined with respect to a season and landfill activity level (i.e. exploitation or standstill periods). Within the landfill area, particular sites were grouped with regard to airborne fungi concentrations and similarities in species composition. The qualitative analysis indicated that 43 species were shared during both sampling times, and only nine species were characteristic for the standstill period. Among fungal isolates, 21 strains of A. fumigatus revealed cytotoxic activity expressed at different levels, depending on the fungal extract concentrations used in the MTT assay. The results suggested that exposure (especially in summer) to small airborne particles, containing distinct species, may occur not only in the active sector but also in close vicinity to the landfill. Hence, microbial monitoring of the landfill and surrounding area should be carried out taking into account both quantitative aspect supplemented by size distribution analysis and qualitative features, especially of those strains possessing cytotoxic activity.

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Hospital Admission and Risk Assessment Associated to Exposure of Fungal Bioaerosols at a Municipal Landfill Using Statistical Models

Gamero

Agudelo-Castañeda

Ramirez³

et al. 2018

Intelligent Data Engineering and Automated Learning – IDEAL 2018

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The object of this research to determine the statistical relationship and degree of association between variables: hospital admission days and diagnostic (disease) potentially associated to fungal bioaerosols exposure. Admissions included acute respiratory infections, atopic dermatitis, pharyngitis and otitis. Statistical analysis was done using Statgraphics Centurion XVI software. In addition, was estimated the occupational exposure to fungal aerosols in stages of a landfill using BIOGAVAL method and represented by Golden Surfer XVI program. Biological risk assessment with sentinel microorganism A. fumigatus and Penicillium sp, indicated that occupational exposure to fungal aerosols is Biological action level. Preventive measures should be taken to reduce the risk of acquiring acute respiratory infections, dermatitis or other skin infections.

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Aspergillus fumigatus and mesophilic moulds in air in the surrounding environment downwind of non-hazardous waste landfill sites

Cited by 29 publications

References 64 publications

Microbial air contamination on the premises of the sewage treatment plant in Bydgoszcz (Poland) and antibiotic resistance of Staphylococcus spp.

Microbial air contamination on the premises of the sewage treatment plant in Bydgoszcz (Poland) and antibiotic resistance of Staphylococcus spp.

Fungal air contamination in distinct sites within a municipal landfill area

Hospital Admission and Risk Assessment Associated to Exposure of Fungal Bioaerosols at a Municipal Landfill Using Statistical Models

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