Survival of Microorganisms on Nonwovens Used for the Construction of Filtering Facepiece Respirators
| Autor: | Anita Jachowicz, Katarzyna Majchrzycka, Małgorzata Okrasa, Justyna Szulc, Beata Gutarowska |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Staphylococcus aureus
business.product_category Health Toxicology and Mutagenesis Microorganism Indoor bioaerosol lcsh:Medicine 02 engineering and technology Raw material Article 03 medical and health sciences Occupational Exposure Candida albicans Escherichia coli Humans Respiratory Protective Devices Respirator microorganisms survivability 030304 developmental biology 0303 health sciences lcsh:R Public Health Environmental and Occupational Health 021001 nanoscience & nanotechnology Pulp and paper industry filtering facepiece respirators respiratory protection filtering nonwovens Environmental science Aspergillus niger 0210 nano-technology business Filtration Bacillus subtilis |
| Zdroj: | International Journal of Environmental Research and Public Health Volume 16 Issue 7 International Journal of Environmental Research and Public Health, Vol 16, Iss 7, p 1154 (2019) |
| ISSN: | 1660-4601 |
| DOI: | 10.3390/ijerph16071154 |
| Popis: | Filtering nonwovens that constitute the base material for filtering facepiece respirators (FFRs) used for the protection of the respiratory system against bioaerosols may, in favourable conditions, promote the development of harmful microorganisms. There are no studies looking at the impact that different types of filtering nonwovens have on microorganism survival, which is an important issue for FFR producers and users. Five commercial filtering nonwovens manufactured using diverse textile technologies (i.e., needle-punching, melt-blown, spun-bonding) with different structural parameters and raw material compositions were used within our research. The survival of microorganisms on filtering nonwovens was determined for E. coli, S. aureus, B. subtilis bacteria C. albicans yeast and A. niger mould. Samples of nonwovens were collected immediately after inoculum application (at 0 h) and after 4, 8, 24, 48, 72, and 96 h of incubation. The tests were carried out in accordance with the AATCC 100-1998 method. Survival depended strongly on microorganism species. E. coli and S. aureus bacteria grew the most on all nonwovens tested. The structural parameters of the nonwovens tested (mass per unit area and thickness) and contact angle did not significantly affect microorganism survival. |
| Databáze: | OpenAIRE |
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