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Airborne microorganisms cultivable on naturally ventilated document repositories of the National Archive of Cuba
- Source :
- Environmental Science and Pollution Research. 23:3747-3757
- Publication Year :
- 2015
- Publisher :
- Springer Science and Business Media LLC, 2015.
-
Abstract
- The quality of the indoor air can provide very useful information for the artwork conservation. The aim of the study was to evaluate the microbial concentration inside six document repositories of the National Archive of the Republic of Cuba in two months of 1 year. The repositories are large, high, and have a natural cross-ventilation system. The microbial sampling was done in July 2010 (summer or rainy month) and February 2011 (winter or dry month) using the SAS Super 100 biocollector at 100 L/min. An appropriate selective culture media were used to isolate fungi and bacteria. A high total microbial concentration on the north side of the building in two studied months was observed. The fungal concentrations were significantly higher in July 2010 in all repositories, while the bacterial concentrations were significantly higher mostly in February 2011 only in repositories located on the first and second floor of the building. Eight fungal genera in the indoor air of all environments were isolated. Regardless of the side of the analyzed building, Penicillium, Aspergillus, and Cladosporium were the predominant genera. Aspergillus flavus and Aspergillus niger were the species isolated in almost all of the analyzed repositories in the studied months. Gram-positive bacteria prevailed among bacterial groups isolated from indoor air repositories, and some percentages corresponded to the genera Bacillus and Streptomyces. In Cuba, the temperature and relative humidity are high during the whole year but the natural ventilation plays an important role in retarding microbial growth on materials.
- Subjects :
- Paper
0301 basic medicine
Health, Toxicology and Mutagenesis
Microorganism
030106 microbiology
Air Microbiology
Bacillus
Aspergillus flavus
010501 environmental sciences
Bacterial growth
01 natural sciences
Toxicology
03 medical and health sciences
Environmental Chemistry
0105 earth and related environmental sciences
Aspergillus
biology
Archives
Ecology
Aspergillus niger
Cuba
Natural ventilation
General Medicine
biology.organism_classification
Pollution
Streptomyces
Ventilation
Air Pollution, Indoor
Penicillium
Mitosporic Fungi
Seasons
Environmental Monitoring
Cladosporium
Subjects
Details
- ISSN :
- 16147499 and 09441344
- Volume :
- 23
- Database :
- OpenAIRE
- Journal :
- Environmental Science and Pollution Research
- Accession number :
- edsair.doi.dedup.....42aec3447e145f7423bdac3d61a36940