DOI: 10.1016/j.atmosenv.2015.03.026
Scopus记录号: 2-s2.0-84924802338
论文题名: Assessment and determinants of airborne bacterial and fungal concentrations in different indoor environments: Homes, child day-care centres, primary schools and elderly care centres
作者: Madureira J ; , Paciência I ; , Rufo J ; C ; , Pereira C ; , Teixeira J ; P ; , de Oliveira Fernandes E
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 109 起始页码: 139
结束页码: 146
语种: 英语
英文关键词: Bacteria
; Children
; Dose rate
; Elderly
; Fungal genera
; Indoor air
Scopus关键词: Algae
; Carbon dioxide
; Enzyme activity
; Fungi
; Health risks
; Indoor air pollution
; Pollution
; Polysaccharides
; Children
; Dose rate
; Elderly
; Fungal genera
; Indoor air
; Bacteria
; agar
; carbon dioxide
; air quality
; atmospheric pollution
; child health
; concentration (composition)
; fungus
; health risk
; indoor air
; microbial community
; pollution monitoring
; risk factor
; adult
; aged
; air sampling
; airborne bacterium
; airborne fungus
; Article
; bacterial growth
; bacterium culture
; child
; Cladosporium
; colony forming unit
; concentration (parameters)
; culture medium
; day care
; disease predisposition
; elderly care
; environmental parameters
; fungus culture
; fungus growth
; human
; humidity
; indoor air pollution
; microenvironment
; middle aged
; nonhuman
; Penicillium
; preschool child
; primary school
; priority journal
; temperature
; Bacteria (microorganisms)
; Cladosporium
; Fungi
; Penicillium
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: Until now the influence of risk factors resulting from exposure to biological agents in indoor air has been far less studied than outdoor pollution; therefore the uncertainty of health risks, and how to effectively prevent these, remains. This study aimed (i) to quantify airborne cultivable bacterial and fungal concentrations in four different types of indoor environment as well as to identify the recovered fungi; (ii) to assess the impact of outdoor bacterial and fungal concentrations on indoor air; (iii) to investigate the influence of carbon dioxide (CO2 ), temperature and relative humidity on bacterial and fungal concentrations; and (iv) to estimate bacterial and fungal dose rate for children (3-5 years old and 8-10 years old) in comparison with the elderly.Air samples were collected in 68 homes, 9 child day-care centres, 20 primary schools and 22 elderly care centres, in a total of 264 rooms with a microbiological air sampler and using tryptic soy agar and malt extract agar culture media for bacteria and fungi growth, respectively. For each building, one outdoor representative location were identified and simultaneously studied. The results showed that child day-care centres were the indoor microenvironment with the highest median bacterial and fungal concentrations (3870CFU/m3 and 415CFU/m3, respectively), whereas the lowest median concentrations were observed in elderly care centres (222CFU/m3 and 180CFU/m3, respectively). Indoor bacterial concentrations were significantly higher than outdoor concentrations (p<0.05); whereas the indoor/outdoor ratios for the obtained fungal concentrations were approximately around the unit. Indoor CO2 levels were associated with the bacterial concentration, probably due to occupancy and insufficient ventilation. Penicillium and Cladosporium were the most frequently occurring fungi. Children's had two times higher dose rate to biological pollutants when compared to adult individuals. Thus, due to children's susceptibility, special attention should be given to educational settings in order to guarantee their healthy future development. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81817
Appears in Collections: 气候变化事实与影响
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作者单位: Institute of Science and Innovation in Mechanical Engineering and Industrial Management, Rua Dr. Roberto Frias, Porto, Portugal; Environmental Health Department, National Institute of Health, Rua Alexandre Herculano, 321, Porto, Portugal; Public Health Institute, University of Porto, Rua das Taipas 135, Porto, Portugal
Recommended Citation:
Madureira J,, Paciência I,, Rufo J,et al. Assessment and determinants of airborne bacterial and fungal concentrations in different indoor environments: Homes, child day-care centres, primary schools and elderly care centres[J]. Atmospheric Environment,2015-01-01,109