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Seasonal distribution of microbial activity in bioaerosols in the outdoor environment of the Qingdao coastal region

Microbial activities in the atmosphere can indicate the physiological processes of microorganisms and can indirectly affect cloud formation and environmental health. In this study, the microbial activity in bioaerosols collected in the Qingdao coastal region was investigated using the fluorescein di... Full description

Journal Title: Atmospheric Environment September 2016, Vol.140, pp.506-513
Main Author: Zhong, Xi
Other Authors: Qi, Jianhua , Li, Hongtao , Dong, Lijie , Gao, Dongmei
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 1352-2310 ; E-ISSN: 1873-2844 ; DOI: 10.1016/j.atmosenv.2016.06.034
Link: https://www.sciencedirect.com/science/article/pii/S1352231016304678
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recordid: elsevier_sdoi_10_1016_j_atmosenv_2016_06_034
title: Seasonal distribution of microbial activity in bioaerosols in the outdoor environment of the Qingdao coastal region
format: Article
creator:
  • Zhong, Xi
  • Qi, Jianhua
  • Li, Hongtao
  • Dong, Lijie
  • Gao, Dongmei
subjects:
  • Bioaerosols
  • Microbial Activity
  • Total Microbe
  • Seasonal Distribution
  • Meteorological Factors
  • Engineering
  • Environmental Sciences
ispartof: Atmospheric Environment, September 2016, Vol.140, pp.506-513
description: Microbial activities in the atmosphere can indicate the physiological processes of microorganisms and can indirectly affect cloud formation and environmental health. In this study, the microbial activity in bioaerosols collected in the Qingdao coastal region was investigated using the fluorescein diacetate (FDA) hydrolysis method to detect the enzyme activity of microorganisms. The results showed that the microbial activity ranged from 5.49 to 102 ng/m sodium fluorescein from March 2013 to February 2014; the average value was 34.4 ng/m . Microbial activity has no statistical correlation with total microbial quantity. Multiple linear regression analysis showed that meteorological factors such as atmospheric temperature, relative humidity and wind speed accounted for approximately 35.7% of the variation of the microbial activity, although their individual impacts on microbial activity varied. According to the correlation analysis, atmospheric temperature and wind speed had a significant positive and negative influence on microbial activity, respectively, whereas relative humidity and wind direction had no significant influence. The seasonal distribution of microbial activity in bioaerosols was in the order of summer > autumn > winter > spring, with high fluctuations in the summer and autumn. Microbial activity in bioaerosols differed in different weather conditions such as the sunny, foggy, and hazy days of different seasons. Further in situ observations in different weather conditions at different times and places are needed to understand the seasonal distribution characteristics of microbial activity in bioaerosols and the influence factors of microbial activity.
language: eng
source:
identifier: ISSN: 1352-2310 ; E-ISSN: 1873-2844 ; DOI: 10.1016/j.atmosenv.2016.06.034
fulltext: no_fulltext
issn:
  • 1352-2310
  • 13522310
  • 1873-2844
  • 18732844
url: Link


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subjectBioaerosols ; Microbial Activity ; Total Microbe ; Seasonal Distribution ; Meteorological Factors ; Engineering ; Environmental Sciences
descriptionMicrobial activities in the atmosphere can indicate the physiological processes of microorganisms and can indirectly affect cloud formation and environmental health. In this study, the microbial activity in bioaerosols collected in the Qingdao coastal region was investigated using the fluorescein diacetate (FDA) hydrolysis method to detect the enzyme activity of microorganisms. The results showed that the microbial activity ranged from 5.49 to 102 ng/m sodium fluorescein from March 2013 to February 2014; the average value was 34.4 ng/m . Microbial activity has no statistical correlation with total microbial quantity. Multiple linear regression analysis showed that meteorological factors such as atmospheric temperature, relative humidity and wind speed accounted for approximately 35.7% of the variation of the microbial activity, although their individual impacts on microbial activity varied. According to the correlation analysis, atmospheric temperature and wind speed had a significant positive and negative influence on microbial activity, respectively, whereas relative humidity and wind direction had no significant influence. The seasonal distribution of microbial activity in bioaerosols was in the order of summer > autumn > winter > spring, with high fluctuations in the summer and autumn. Microbial activity in bioaerosols differed in different weather conditions such as the sunny, foggy, and hazy days of different seasons. Further in situ observations in different weather conditions at different times and places are needed to understand the seasonal distribution characteristics of microbial activity in bioaerosols and the influence factors of microbial activity.
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