Bio-aerosols in indoor environment: Composition, health effects and analysis

Srikanth, Padma; Sudharsanam, Suchithra; Steinberg, Ralf

doi:10.4103/0255-0857.43555

Cited by 149 publications

(133 citation statements)

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“…The effects of particles and microbial aerosols on human health have been widely reported in the literature as presented in the review of Harada et al (2010) and other studies (Griffiths and DeCosemo 1994;Stetzenbach 1998;Fischer and Dott 2003;Srikanth et al 2008). Sick building syndrome (SBS) is a term introduced by the World Health Organization (WHO) in 1983 to explain the symptoms and discomfort of workers.…”

Section: Introductionmentioning

confidence: 99%

Filtration performances of HVAC filters for PM10 and microbial aerosols— Influence of management in a lab-scale air handling unit

González

Joubert

Andrès

et al. 2016

Aerosol Science and Technology

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Filtration performances of air handling unit (AHU) filters for particles and microbial aerosols were investigated. The influence of the AHU operational conditions on the behavior of microorganisms collected on the filters was also studied. A lab-scale AHU with two filtration stages was developed and validated for the study of downsized filters with industrial geometries. Three types of filters of different efficiency were considered: G4, F7, and F9, according to European standard EN 779. Two configurations of filters were studied: G4 pleated/F7 bag and F7/F9 bag. Filters were sequentially clogged by alumina particles, which provided a mineral fraction in the particulate cake, and then by micronized rice particles, which provided the fungus Penicillium chrysogenum and an organic fraction that acts as a substrate for microorganisms. Finally, a microbial aerosol composed of endospores of Bacillus subtilis and spores of Aspergillus niger was nebulized to contaminate filters. After clogging, periods of 5 days on and 2 day weekend stops with restarts of ventilation were simulated for 6 weeks. The results showed that the filter efficiency for particles was quite comparable to that for microbial aerosols expressed in cultivable concentration. The particulate cake composed of alumina and micronized rice particles enabled the growth of the endogenous species P. chrysogenum and the survival of exogenous species B. subtilis and A. niger on filters. During restarts of ventilation, low particle concentrations were detected downstream of the second filtration stages by release but the microbial concentration from the fraction of air sampled was below the detection limit.

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Section: Introductionmentioning

confidence: 99%

Filtration performances of HVAC filters for PM10 and microbial aerosols— Influence of management in a lab-scale air handling unit

González

Joubert

Andrès

et al. 2016

Aerosol Science and Technology

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“…Cladosporium, Aspergillus and Penicillium (Srikanth et al, 2008;Adhikari et al, 2004;Ustaçelebi, 1999 *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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“…Oxygen consumption in people who regularly train is considerably higher than in the average person. Moreover the per minute breathing volume in physically active persons is greater than the per minute breathing volume in non-athletes [10]. This means that trainees will be exposed to more PM and PM-bound substances and pollutants in all conditions than those who do not regularly practice a sport.…”

Section: Introductionmentioning

confidence: 99%

Particulate matter and polycyclic aromatic hydrocarbons in a selected athletic hall: ambient concentrations, origin and effects on human health

Kuskowska

Rogula–Kozłowska

Rogula-Kopiec

2018

E3S Web of Conferences

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Abstract. The paper presents the results of research on the concentration of 16 polycyclic aromatic hydrocarbons (PAHs) associated with total suspended particles (TSP) and their respirable fraction (PM4) in one of the Warsaw sports halls. Samples of dust were collected for 15 days simultaneously inside and outside (atmospheric air) of the sports hall. The obtained data allowed calculating diagnostic ratios indicating the origin of the PAHs and selected indicators of cumulative exposure to the PAH mixture. Both PM and PAH in the surveyed area were derived from the combustion of solid fuels; this involved pollution both in the atmospheric air and in the air inside the sports hall. It has been shown that the exposure of sports hall users to PAHs is significantly higher than the exposure resulting from concentrations recorded in the atmospheric air.

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Bio-aerosols in indoor environment: Composition, health effects and analysis

Cited by 149 publications

References 70 publications

Filtration performances of HVAC filters for PM10 and microbial aerosols— Influence of management in a lab-scale air handling unit

Filtration performances of HVAC filters for PM10 and microbial aerosols— Influence of management in a lab-scale air handling unit

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

Particulate matter and polycyclic aromatic hydrocarbons in a selected athletic hall: ambient concentrations, origin and effects on human health

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