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Wyszukujesz frazę "Stobnicka, A." wg kryterium: Autor


Wyświetlanie 1-3 z 3
Tytuł:
Czynniki mikrobiologiczne na pokładzie lekkich samolotów pasażerskich
Microbial Agents on Board of Light Passenger Aircrafts
Autorzy:
Stobnicka, A.
Górny, R.
Gołofit-Szymczak, M.
Cyprowski, M.
Ławniczek-Wałczyk, A.
Powiązania:
https://bibliotekanauki.pl/articles/1818069.pdf
Data publikacji:
2016
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
lekkie samoloty pasażerskie
zanieczyszczenie powietrza
bakterie
grzyby
bioaerozol
light passenger aircrafts
air contamination
bacteria
fungi
bioaerosol
Opis:
Light passenger aircrafts, also known as „air taxis”, are a fast and comfortable way of transport, which becomes more and more popular nowadays. However, there is a lack of publications regarding harmful biological agents in the cabin air of light passenger aircrafts. The aim of the study was a quantitative and qualitative evaluation of microbial contamination of cabin air in eight light passenger aircrafts with open cabin type and two helicopters. The bioaerosol sampling was carried out with a stationary, volumetric method using MAS-100 NT impactor. The concentration of microorganisms was expressed as CFU/m3.The highest concentration of bacteria was detected in the helicopter Robinson R44 Raven 2 I (175 CFU/3), while the highest concentration of fungi was detected in the plane model TB9 Socata Tampico (385 CFU/m3). Kruskal-Wallis test did not show any statistically significant difference in the concentration of microorganisms in the air between the tested aircrafts, and between them and the outside background.The predominant groups of microorganisms in bioaerosols were fungi and Gram-positive cocci, which constituted 31.1-83.0% and 5.6-62.2% of the total microbiota, respectively. Sixteen species of bacteria belonging to the 8 types and 14 species of fungi belonging to 13 genera were identified in the samples.The qualitative analysis showed the presence of bacterial and fungal saprophytic strains belonging to the 1. risk group, and species belonging to the 2. risk group (Bacillus subtilis, Streptomyces spp.). Taking into account the influence of temperature and relative humidity on the concentration of bacteria and fungi in the air, it was observed that the higher temperature determined the higher concentration of bacteria, but there was no such relationship concerning fungi. Relative humidity did not significantly determine the concentration of bioaerosols.Our results indicate that the concentrations of bacteria and fungi in the cabin air were very low. However, even such an environment cannot be considered as free from pathogens. As shown by the results, the bioaerosols in the cabin air of light passenger aircrafts may contain potentially pathogenic bacteria and fungi belonging to the 2. risk group. However, bioaerosols may contain potentially pathogenic bacteria and fungi belonging to the 2. risk group. Direct contact with the afore-mentioned microorganisms, especially in the case of people with weakened immunity systems, can cause adverse health effects, as well as allergic reactions.
Źródło:
Rocznik Ochrona Środowiska; 2016, Tom 18, cz. 2; 492-505
1506-218X
Pojawia się w:
Rocznik Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zanieczyszczenia mikrobiologiczne w instalacjach klimatyzacyjnych budynków
Microbiological contamination of building air conditioning systems
Autorzy:
Gołofit-Szymczak, M.
Cyprowski, M.
Ławniczek-Wałczyk, A.
Stobnicka, A
Górny, R. L.
Powiązania:
https://bibliotekanauki.pl/articles/180059.pdf
Data publikacji:
2014
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
szkodliwe czynniki biologiczne
bakterie
grzyby
systemy klimatyzacyjne
harmful biological agents
bacteria
fungi
air conditioning systems
Opis:
Instalacje klimatyzacyjne są rozwiązaniem technicznym służącym poprawie jakości powierza wewnętrznego. W miarę wydłużenia się okresu eksploatacji, instalacje klimatyzacyjne mogą ulegać zanieczyszczeniu i stanowić źródło mikrobiologicznego skażenia powietrza. Zarówno w nowych budynkach jak i tych od wielu lat eksploatowanych powinno być prowadzone monitorowanie stanu instalacji klimatyzacyjnych pod kątem ich sprawności technicznej i jakości higienicznej oraz okresowe ich czyszczenie i ewentualna dezynfekcja.
Air conditioning systems are technical solution for improvement of indoor air quality. With the passage of time, ventilation systems may be contaminated and become one of the most active emission sources of microbial contaminants. In new buildings as well as in those already exploited for many years. a detailed monitoring of air conditioning systems including periodic cleaning and prospective disinfection should be carried out as an immanent part of technical performance and hygienic purity checking.
Źródło:
Bezpieczeństwo Pracy : nauka i praktyka; 2014, 4; 24-26
0137-7043
Pojawia się w:
Bezpieczeństwo Pracy : nauka i praktyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Microbial contamination level and microbial diversity of occupational environment in commercial and traditional dairy plants
Autorzy:
Stobnicka-Kupiec, A.
Gołofit-Szymczak, M.
Górny, R.
Powiązania:
https://bibliotekanauki.pl/articles/2085184.pdf
Data publikacji:
2019
Wydawca:
Instytut Medycyny Wsi
Tematy:
occupational exposure
bacteria
fungi
bioaerosols
surface swabs
dairy plants
Opis:
Objective. The aim of this study was to assess microbial contamination of the air and surfaces at workplaces in commercial (CD) and traditional (TD) dairies. Materials and method. Bioaerosol (impactor) and surface (swab) samples were collected in CD and in TD. Bacterial and fungal concentrations in the air and on surfaces were calculated and all isolated microorganisms taxonomically identified, based on their morphological, biochemical and molecular features. Results. Average concentrations of bacterial aerosol ranged between 70–860 CFU/m3 and 265–14639 CFU/m3, while for fungal aerosol were between 50–290 CFU/m3 and 55–480 CFU/m3 in CD and TD, respectively. Average bacterial concentrations on surfaces ranged between 1.0–49.7 CFU/cm2 and 0.2–60.4 CFU/cm2, whereas average fungal surface contamination ranged between 0–2.7 CFU/cm2 and 0–4.6 CFU/cm2 in CD and TD, respectively. Qualitative analysis revealed mainly the presence of saprophytic microorganisms; however, several pathogenic strains (Staphylococcus aureus, Streptococcus intermedius, Clostridium perfringens, Actinomyces spp., Streptomyces spp., Candida albicans) were also isolated from both the air and surface samples in the studied dairies. Conclusions. The air and surfaces in TD were more polluted than those in CD; however, in both types of dairies, the levels of microbial contaminants did not exceed respective threshold limit values. Nevertheless, the presence of pathogenic microorganisms may increase health risk for dairy workers and influence the quality of products. Hence, proper hygienic measures should be introduced and performed to guarantee high microbial quality of both production processes and milk products.
Źródło:
Annals of Agricultural and Environmental Medicine; 2019, 26, 4; 555-565
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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