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Int. J. Environ. Res. Public Health 2015, 12(7), 8295-8311; doi:10.3390/ijerph120708295

Study on Microbial Deposition and Contamination onto Six Surfaces Commonly Used in Chemical and Microbiological Laboratories

1
Department of Life Science and Biotechnology, University of Ferrara, Ferrara, Via L. Borsari 46, 44121 Italy
2
Corrosion and Metallurgy Study Centre "A. Daccò", Department of Engineering, University of Ferrara, Via Saragat 4a, Ferrara 44122, Italy
*
Author to whom correspondence should be addressed.
Academic Editor: Paul B. Tchounwou
Received: 1 June 2015 / Revised: 10 July 2015 / Accepted: 14 July 2015 / Published: 17 July 2015
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Abstract

The worktops in both chemical and microbiological laboratories are the surfaces most vulnerable to damage and exposure to contamination by indoor pollutants. The rate at which particles are deposited on indoor surfaces is an important parameter to determine human exposure to airborne biological particles. In contrast to what has been established for inorganic pollutants, no limit has been set by law for microbial contamination in indoor air. To our knowledge, a comparative study on the effect of surfaces on the deposition of microbes has not been carried out. An evaluation of the microbial contamination of worktop materials could be of crucial importance, both for safety reasons and for the reliability of tests and experiments that need to be carried out in non-contaminated environments. The aim of this study was to evaluate the overall microbial contamination (fungi, mesophilic and psychrophilic bacteria, staphylococci) on six widely used worktop materials in laboratories (glass, stainless steel, fine porcelain stoneware, post-forming laminate, high-performing laminate and enamel steel) and to correlate it with the characteristics of the surfaces. After cleaning, the kinetics of microbial re-contamination were also evaluated for all surfaces. View Full-Text
Keywords: surface contamination; bioaerosol deposition; surface roughness; total microbial counts surface contamination; bioaerosol deposition; surface roughness; total microbial counts
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Tamburini, E.; Donegà, V.; Marchetti, M.G.; Pedrini, P.; Monticelli, C.; Balbo, A. Study on Microbial Deposition and Contamination onto Six Surfaces Commonly Used in Chemical and Microbiological Laboratories. Int. J. Environ. Res. Public Health 2015, 12, 8295-8311.

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