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Assessment of culturable airborne bacteria of indoor environments in classrooms, dormitories and dining hall at university: a case study in China
University students’ health may be adversely affected by exposure to indoor bacterial contaminants on their campuses. This study aims (1) to quantify culturable bacterial concentrations in three indoor environments at a university, (2) to investigate the influence of meteorological factors and gende...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer Netherlands
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7223800/ https://www.ncbi.nlm.nih.gov/pubmed/32421086 http://dx.doi.org/10.1007/s10453-020-09633-z |
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author | Li, Yanju Ge, Yanhui Wu, Chunbin Guan, Dexing Liu, Jinbao Wang, Fuyang |
author_facet | Li, Yanju Ge, Yanhui Wu, Chunbin Guan, Dexing Liu, Jinbao Wang, Fuyang |
author_sort | Li, Yanju |
collection | PubMed |
description | University students’ health may be adversely affected by exposure to indoor bacterial contaminants on their campuses. This study aims (1) to quantify culturable bacterial concentrations in three indoor environments at a university, (2) to investigate the influence of meteorological factors and gender, to assess the relationship between indoor and outdoor, and (3) to estimate the bacterial dose for university students in different indoor environments. Airborne bacteria samples were collected in 12 classrooms, in 12 living rooms and four bathrooms in two dormitory buildings, and in a dining hall. The results showed that the microenvironment in the female dormitory had the highest mean bacterial concentration (2847 CFU/m(3)), whereas the lowest mean bacterial concentration was observed in classrooms (162 CFU/m(3)). Indoor bacterial concentrations in male dormitories were significantly lower than in female dormitories probably because of crowding and increased ventilation. Outdoor weather conditions were associated with the indoor concentrations with regard to insufficient ventilation and varying outdoor concentration. The occupants’ activity level was also more closely related to the indoor bacteria concentration in the residential setting. Students experienced about four times higher dose of airborne bacteria in the dormitories than in the classrooms and dining hall. |
format | Online Article Text |
id | pubmed-7223800 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Springer Netherlands |
record_format | MEDLINE/PubMed |
spelling | pubmed-72238002020-05-15 Assessment of culturable airborne bacteria of indoor environments in classrooms, dormitories and dining hall at university: a case study in China Li, Yanju Ge, Yanhui Wu, Chunbin Guan, Dexing Liu, Jinbao Wang, Fuyang Aerobiologia (Bologna) Original Paper University students’ health may be adversely affected by exposure to indoor bacterial contaminants on their campuses. This study aims (1) to quantify culturable bacterial concentrations in three indoor environments at a university, (2) to investigate the influence of meteorological factors and gender, to assess the relationship between indoor and outdoor, and (3) to estimate the bacterial dose for university students in different indoor environments. Airborne bacteria samples were collected in 12 classrooms, in 12 living rooms and four bathrooms in two dormitory buildings, and in a dining hall. The results showed that the microenvironment in the female dormitory had the highest mean bacterial concentration (2847 CFU/m(3)), whereas the lowest mean bacterial concentration was observed in classrooms (162 CFU/m(3)). Indoor bacterial concentrations in male dormitories were significantly lower than in female dormitories probably because of crowding and increased ventilation. Outdoor weather conditions were associated with the indoor concentrations with regard to insufficient ventilation and varying outdoor concentration. The occupants’ activity level was also more closely related to the indoor bacteria concentration in the residential setting. Students experienced about four times higher dose of airborne bacteria in the dormitories than in the classrooms and dining hall. Springer Netherlands 2020-03-02 2020 /pmc/articles/PMC7223800/ /pubmed/32421086 http://dx.doi.org/10.1007/s10453-020-09633-z Text en © Springer Nature B.V. 2020 This article is made available via the PMC Open Access Subset for unrestricted research re-use and secondary analysis in any form or by any means with acknowledgement of the original source. These permissions are granted for the duration of the World Health Organization (WHO) declaration of COVID-19 as a global pandemic. |
spellingShingle | Original Paper Li, Yanju Ge, Yanhui Wu, Chunbin Guan, Dexing Liu, Jinbao Wang, Fuyang Assessment of culturable airborne bacteria of indoor environments in classrooms, dormitories and dining hall at university: a case study in China |
title | Assessment of culturable airborne bacteria of indoor environments in classrooms, dormitories and dining hall at university: a case study in China |
title_full | Assessment of culturable airborne bacteria of indoor environments in classrooms, dormitories and dining hall at university: a case study in China |
title_fullStr | Assessment of culturable airborne bacteria of indoor environments in classrooms, dormitories and dining hall at university: a case study in China |
title_full_unstemmed | Assessment of culturable airborne bacteria of indoor environments in classrooms, dormitories and dining hall at university: a case study in China |
title_short | Assessment of culturable airborne bacteria of indoor environments in classrooms, dormitories and dining hall at university: a case study in China |
title_sort | assessment of culturable airborne bacteria of indoor environments in classrooms, dormitories and dining hall at university: a case study in china |
topic | Original Paper |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7223800/ https://www.ncbi.nlm.nih.gov/pubmed/32421086 http://dx.doi.org/10.1007/s10453-020-09633-z |
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