International Journal of Environmental Sciences

Volume 2 Issue 4 2012           Pages:1952- 1961

An extramural aero mycological investigation of dental college hospital associated environment

Author Information:

Apurva K. Pathak Department of Microbiology, Modern Dental College and Research Centre, Gandhinagar, Indore, M.P., India


It is supposed that extramural environments are the significant sources of intramural airborne fungal spores. The prevalence of airborne fungal spores are depended upon many biotic and abiotic factors, thus the airborne microorganism of any environment is specific in nature. The aim of this work was to monitor the occurrences and seasonal distribution of the airborne cultivable fungi in the air of a Dental College hospital associated environments at Indore in order to evaluate whether the Dental College hospital are a source of fungi of extramural environment or not. Airborne cultivable fungal spore levels were monitored by using Andersen two-stage viable (microbial) particle sampler. The Spearman correlation coefficients and stepwise linear regressions analysis test was used to analyze the influence of meteorological factors on spore concentration and paired Student’s t-test  was used to compare bio load of total viable cultivable fungi of downwind and upwind direction, the percentage frequency and percentage contribution of individual genus were also reported. In both areas, Aspergillus, Penincillium, Alternaria, and yeast were the most abundant fungal types observed. The bioload of fungal spore presented maximum values during the winter and lowest in the season of summer. There is no correlation established between the environmental factors like dew point, humidity, sea level pressure, and wind, whereas; temperature significantly correlated negatively and bio load of upwind significantly positively correlated with total viable cultivable fungi of downwind direction showing dental college hospital by itself is not a contributor of airborne fungi. A regression model with upto 81.9% variance was prepared in order to predict the total viable cultivable fungal bioload for this atmosphere in relation to temperature and bioload of upwind area.

Keywords: Aero mycology, Environmental factors, Extramural, Regression model

DOI: 10.6088/ijes.00202030079

© 2012 Copyright Apurva K. Pathak, licensee IPA.This is an open access article distributed under the Creative Commons Attribution License (2.0) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The electronic version of the article can be downloaded below.

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