Airborne fungi as biocontaminants at two Milan underground stations

Picco, Anna Maria; Rodolfi, Marinella

doi:10.1016/s0964-8305(00)00047-0

Cited by 47 publications

(48 citation statements)

References 9 publications

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“…The prevalent fungal groups from all the sampling sites were Cladosporium, non-sporing isolates, Alternaria, Pencillium and Asperigillus, some of which have been reported as the most common airborne fungi in different environments in other studies Pandit et al, 1995;Rosas et al, 1997;Waisel et al, 1997;Picco and Rodolfi, 2000;Shelton et al, 2002;Huang et al, 2002;Hargreaves et al, 2003;Kuder, 2003;Adhikari et al, 2004). Cladosporium, comprising more than one third of the collected samples, was the most dominant fungal group in the present study.…”

Section: Discussionsupporting

confidence: 62%

“…On one hand, most of the fungal airborne spores were supposed to come from vegetation rather than from soil. In the vigorous growth of plants in Summer, the phylloplanes can allow for the growth of several saprophytic and parasitic fungi (Picco and Rodolfi, 2000). On the other hand, air temperature and moisture in the microenvironment in Summer could be adaptable for the germination, growth and propagation of airborne fungi.…”

Section: Discussionmentioning

confidence: 99%

“…So the fungal colonization might vary according to the season and the plant life cycle (Picco and Rodolfi, 2000). Therefore, the concentration varied greatly and was higher in Summer and Autumn, and lower in Spring and Winter.…”

Section: Discussionmentioning

confidence: 99%

“…It was reported that the dominant fungi were Cladosporium, Alternaria, Penicillium, Aspergillus in the atmosphere (Pandit et al, 1995;Singh et al, 1995;Rosas et al, 1997;Waisel et al, 1997;Picco and Rodolfi, 2000;Huang et al, 2002;Shelton et al, 2002;Hargreaves et al, 2003;Kuder, 2003;Adhikari et al, 2004), and their concentrations differed from place to place because of local environmental variables, fungal substrates, and human activities (Banerjee et al, 1987;Li and Kendrick, 1994;Hameed and Khodr, 2001;Shelton et al, 2002). However, little is known about the species, number, and size distribution of airborne fungi in Beijing.…”

Section: Introductionmentioning

confidence: 99%

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Culturable airborne fungi in outdoor environments in Beijing, China

Fang

Ouyang

et al. 2005

Science of The Total Environment

145

101

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Airborne fungi are being proposed as a cause of adverse health effects. They may adversely affect human health through allergy, infection, and toxicity. Moreover, they have a great influence on urban air quality in Beijing. In this study, a systematical survey on the culturable airborne fungi was carried out for 1 year in Beijing urban area. Fungal samples were collected for 3 min, three times each day, and continued for three consecutive days of each month with FA-1 sampler from three sampling sites. Results showed that the culturable fungal concentrations ranged from 24 CFU (Colony forming units) /m 3 to 13960 CFU/m 3 , and the mean and median was 1165 CFU/m 3 and 710 CFU/m 3 , respectively. Fungal concentrations in the greener area around the Research Center for Eco-Environmental Sciences (RCEES) and Beijing Botanical Garden (BBG) were significantly higher than in the densely urban and highly trafficked area of Xizhimen (XZM) (***Pb0.001), but no significant difference was found between RCEES and BBG ( PN0.05). The variation of fungal concentrations in different seasons was significant in RCEES and BBG, where the concentrations were higher in Summer and Autumn, and lower in Spring and Winter. However, there were no significant differences in fungal concentrations between the Spring and the Winter for three sampling sites ( PN0.05). Fourteen genera, including 40 species of culturable fungi, were identified in this study. Penicillium, with the most abundant species, which comprised more than 50% of the total isolated fungal species. Cladosporium were the most dominant fungal group, and contributed to more than one third of the total fungal concentration, followed by non-sporing isolates, Alternaria, Pencillium and Asperigillus. The concentration percentage of Cladosporium was significantly higher in RCEES than in XZM (*Pb0.05), and the concentration percentages of Penicillium (**Pb0.01) and Aspergillus (*Pb0.05) were higher in XZM than in RCEES and in BBG. For other groups' concentration percentages, no significant differences were observed among the sampling sites. The distribution pattern of airborne fungi presented log-normal distribution. The highest proportion of culturable fungi was detected in stage 4 (2.0-3.5 Am), and the lowest was in stage 6 (b1.0 Am). D

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Section: Discussionsupporting

confidence: 62%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Culturable airborne fungi in outdoor environments in Beijing, China

Fang

Ouyang

et al. 2005

Science of The Total Environment

145

101

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“…Previous studies showed a wide range of concentration levels of subway bioaerosols due to different places, seasons and different methods of sampling. Typically, the concentrations of bacterial aerosols in the subway system varied from 50 CFU m -3 to 12000 CFU m -3 , while those of fungal aerosols varied from 45 CFU m -3 to 1600 CFU m -3 (Gilleberg et al, 1998;Picco et al, 2000;Cho et al, 2002;An et al, 2004;Seino et al, 2005;Yao and Mainelis, 2006;Bogomolova and Kirtsideli, 2009;Dong and Yao, 2010;Hwang et al, 2010;Kim et al, 2011;Dybwad et al, 2012;Robertson et al, 2013;Dybwad et al, 2014;Hwang and Park, 2014). Through both culture and culture-independent methods, airborne bacterial and fungal community structures were investigated in subways (Dybwad et al, 2012;Robertson et al, 2013;Leung et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Time-Dependent Size-Resolved Bacterial and Fungal Aerosols in Beijing Subway

Fan

Deng

et al. 2017

Aerosol Air Qual. Res.

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Despite of an important concern, human bioaerosol emission into subway is not well and directly characterized. Here, we used bioaerosol detector and next generation sequencing methods to investigate time-dependent bioaerosol size distributions in Beijing subway system between March and April, 2015. In contrast to weekends, weekday microbial aerosol results exhibited strong time dependence with higher bacterial and fungal aerosol levels up to 2083 CFU m -3 and 483 CFU m -3 observed, respectively, for the peak hours. During the peak hour (17:30-18:30), bioaerosol emissions at 0.8-3 µm was detected, while about three times higher concentration levels were observed compared to those during the offpeak hour (22:00-23:00). Similar bioaerosol size distributions were observed between ventilation outlets and subway platform air. During off-peak hours, subway bioaerosols had similar size distributions with the outside air. Sequence results revealed a vast array of airborne microbial species which varied from one station to another, but with Aspergillus spp. as dominant fungal species, and Staphylococcus, Pseudomonas as primary bacterial genera including human opportunistic ones. Our results provide direct online observations of human contributions to subway size-resolved bioaerosols, and enhancing ventilation system might help for controlling the exposure especially during the peak-hours.

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Exploring Fungal Biodiversity of Genus Epicoccum and Their Biotechnological Potential

Abed

2021

Fungal Biology

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Airborne fungi as biocontaminants at two Milan underground stations

Cited by 47 publications

References 9 publications

Culturable airborne fungi in outdoor environments in Beijing, China

Culturable airborne fungi in outdoor environments in Beijing, China

Time-Dependent Size-Resolved Bacterial and Fungal Aerosols in Beijing Subway

Exploring Fungal Biodiversity of Genus Epicoccum and Their Biotechnological Potential

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