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    Tytuł:
    Endotoxins and beta-glucans as markers of microbiological contamination - characteristics, detection, and environmental exposure
    Autorzy:
    Lawniczek-Walczyk, A
    Gorny, R.L.
    Powiązania:
    https://bibliotekanauki.pl/articles/49660.pdf
    Data publikacji:
    2010
    Wydawca:
    Instytut Medycyny Wsi
    Tematy:
    environmental exposure
    endotoxin
    beta-glucan
    structure
    biological activity
    detection
    microbiological contamination
    environment pollution
    hygienic standard
    standard
    Polish standard
    occupational exposure
    Źródło:
    Annals of Agricultural and Environmental Medicine; 2010, 17, 2; 193-208
    1232-1966
    Pojawia się w:
    Annals of Agricultural and Environmental Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Occupational exposure to airborne microorganisms, endotoxins and beta-glucans in poultry houses at different stages of the production cycle
    Autorzy:
    Lawniczek-Walczyk, A.
    Gorny, R.L.
    Golofit-Szymczak, M.
    Niesler, A.
    Wlazlo, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/51116.pdf
    Data publikacji:
    2013
    Wydawca:
    Instytut Medycyny Wsi
    Tematy:
    occupational exposure
    airborne microorganism
    endotoxin
    beta-glucan
    poultry house
    different stage
    production cycle
    poultry farm
    animal farm
    bioaerosol
    Opis:
    The aim of the presented study was to assess the exposure of poultry workers to airborne microorganisms, endotoxins and β-glucans during different stages of the chicken production cycle in 3 commercially-operated poultry houses. Personal and stationary sampling was carried out to assess exposure to both viable and total microbial aerosols. The stationary measurements of PM10 were performed to establish the level of endotoxins and β-glucans. The concentrations of bacterial and fungal aerosols ranged from 2.5×102 CFU/m3 – 2.9×106 CFU/m3, and from 1.8×102 CFU/m3 – 1.8×105 CFU/m3, respectively. The number of culturable microorganisms was significantly lower than their total counts, constituting from 0.0004% – 6.4% of the total microbial flora. The level of PM10 in poultry facilities did not exceed 4.5 mg/m3. After the flock entered the clean house, the level of endotoxins and β-glucans increased from below detection limit to 8,364 ng/m3 and from 0.8 ng/m3 to 6,886 ng/m3, respectively. The presented study shows that professional activities in poultry farms are associated with constant exposure to bioaerosol, which may pose a health hazard to workers. It was found that workers’ exposure to airborne microorganisms increased with consecutive stages of the chicken production cycle.
    Źródło:
    Annals of Agricultural and Environmental Medicine; 2013, 20, 2
    1232-1966
    Pojawia się w:
    Annals of Agricultural and Environmental Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zagrożenia biologiczne związane z produkcją zwierzęcą
    Biological hazards associated with livestock production
    Autorzy:
    Ławniczek-Wałczyk, A.
    Górny, R. L.
    Gołofit-Szymczak, M.
    Cyprowski, M.
    Stobnicka, A
    Powiązania:
    https://bibliotekanauki.pl/articles/179494.pdf
    Data publikacji:
    2014
    Wydawca:
    Centralny Instytut Ochrony Pracy
    Tematy:
    produkcja zwierzęca
    narażenie zawodowe
    zoonozy
    choroby alergiczne
    animal production
    occupational exposure
    zoonosis
    allergic diseases
    Opis:
    Praca w sektorze produkcji zwierzęcej związana jest z codziennym narażeniem na różnorodne szkodliwe czynniki biologiczne, w tym bakterie, grzyby, ich fragmenty i metabolity, a także alergeny i toksyny pochodzenia roślinnego i zwierzęcego Czynniki te mogą powodować u osób eksponowanych zoonozy (np. ptasia grypa, borelioza) oraz choroby o podłożu alergizującym i immunotoksycznym (np. alergiczne zapalenie pęcherzyków płucnych i zespół toksyczny wywołany pyłem organicznym). W celu zmniejszenia ryzyka wystąpienia tych niekorzystnych efektów zdrowotnych, niezbędne jest podjęcie przez pracodawców odpowiednich działań prewencyjnych i profilaktycznych.
    Working in the animal production sector is associated with daily exposure to a variety of harmful biological agents including bacteria, fungi, their fragments and metabolites, viruses, allergens and toxins of plant and animal origin. All these agents may cause zoonoses (e. g. avian influenca, borreliosis) as well as allergic and immunotoxic diseases (e.g. allergic alveolitis, organic dust toxic syndrome) in exposed individuals. To decrease a risk of such adverse health outcomes, both a proper prevention and control measures should be introduced by employers m each occupational environment.
    Źródło:
    Bezpieczeństwo Pracy : nauka i praktyka; 2014, 4; 14-17
    0137-7043
    Pojawia się w:
    Bezpieczeństwo Pracy : nauka i praktyka
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Charakterystyka zagrożeń biologicznych występujących przy przetwarzaniu biomasy do celów energetycznych
    Characteristics of Biological Hazards Associated with Processing of Biomass for Energy Purposes
    Autorzy:
    Gołofit-Szymczak, M.
    Ławniczek-Wałczyk, A.
    Górny, R. L.
    Cyprowski, M.
    Stobnicka, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1818071.pdf
    Data publikacji:
    2016
    Wydawca:
    Politechnika Koszalińska. Wydawnictwo Uczelniane
    Tematy:
    narażenie zawodowe
    biomasa
    bioaerozol
    occupational exposure
    biomass
    bioaerosol
    Opis:
    One of the main biohazard for the employees working in processing of biomass for energy purposes is organic dust. The bioaerosol sampling was carried out at two power plants and three combined heat and power plants in Poland which co-combusted the agricultural and forest biomass with coal dust. The bacterial and fungal aerosol was collected stationary by a single-stage MAS-100 impactor. Fourteen different types of biomass samples used in the co-combustion process were also analyzed: conifer chips, alder chips, bark, sawdust, sunflower hull pellet, olive pellet, straw pellet, oat hull pellet, biofuel mix pellet, olive pomace, straw waste, corn pomace, dried fruit and straw with coal. The concentrations of bacterial and fungal aerosol ranged from 0.9×103 to 2.3×106 CFU/m3 and from 0.2×103 to 1.5×105 CFU/m3, respectively. The highest concentrations of bacterial and fungal aerosols were determined at workplaces related to screening, reloading and biomass transport via conveyor belts. The most prevalent in the air were fungi from Aspergillus genus and Gram-negative rods. Bacterial and fungal concentrations in biomass samples ranged from 1.8×103 CFU/g to 3.9×106 CFU/g and from 0.1×103 CFU/g to 22.7×106 CFU/g, respectively. Their highest concentrations were recorded in the samples of straw mixed with coal. This study showed that employees working at a power plant, both in the technological lines and in the laboratories, are associated with the exposure to high concentrations of potentially pathogenic microorganisms. Hence, to reduce such exposure, both hermetization of biomass processing and regular control of work environment should be applied.
    Źródło:
    Rocznik Ochrona Środowiska; 2016, Tom 18, cz. 2; 193-204
    1506-218X
    Pojawia się w:
    Rocznik Ochrona Środowiska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Across-shift changes in upper airways after exposure to bacterial cell wall components
    Autorzy:
    Cyprowski, M.
    Stobnicka-Kupiec, A.
    Górny, R.L.
    Gołofit-Szymczak, M.
    Ptak-Chmielewska, A.
    Ławniczek-Wałczyk, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/2083062.pdf
    Data publikacji:
    2019
    Wydawca:
    Instytut Medycyny Wsi
    Tematy:
    endotoxins
    occupational exposure
    IL-8
    peptidoglycans
    airway inflammation
    across-shift changes
    Opis:
    Introduction. To assess the across-shift changes of cytokine concentrations in nasal lavage (NAL) samples were collected from workers exposed to bacterial cell wall components present in organic dust in three different occupational environments. Materials and method. The study was conducted in 38 employees including 10 workers from a municipal waste sorting plant (WSP), 20 from a sewage treatment plant (STP) and 8 from an office building (OB), who were established as a reference group, not exposed to organic dust. Interleukins 1β (IL-1β), 6 (IL-6), 8 (IL-8) and tumour necrosis factor alpha (TNF-α) were examined in NAL before and after work shift on Wednesdays. Bioaerosol exposure was determined by personal measurements and analysed for organic dust, endotoxins (END) and peptidoglycans (PGN). Results. The analysis included the results for IL-8 only, because for the other cytokines their concentrations in 80% of cases were below the detection level. The most polluted were the workplaces in WSP with average concentrations of organic dust – 3.47 mg/m3, END – 96.31 ng/m3 and PGN – 571.88 ng/m3. The results of IL-8 showed a significant difference between the studied groups after the work shift (p=0.007). Among WSP workers concentrations of IL-8 increased also significantly (p=0.015) during the work shift. Multivariate analysis showed that organic dust and END were the factors that in the most distinct way (p<0.001) influenced changes of IL-8 levels in NAL. Conclusions. Each alteration in the composition of bioaerosols will probably determine the changes in the mechanisms responsible for both formation and modulation of inflammatory reactions in exposed workers.
    Źródło:
    Annals of Agricultural and Environmental Medicine; 2019, 26, 2; 236-241
    1232-1966
    Pojawia się w:
    Annals of Agricultural and Environmental Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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