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Wyświetlanie 1-3 z 3
Tytuł:
Removal of a textile dye (RBBR) from the water environment by fungi isolated from lignocellulosic composts
Autorzy:
Bohacz, Justyna
Powiązania:
https://bibliotekanauki.pl/articles/204714.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
water environment
textil dye
Trichoderma sp
peroxidase activity
Remazol Brilliant Blue R.
Opis:
A representative group of hydrophilic fungi from the genus Trichoderma isolated from lignocellulose composts with varying degrees of maturity was analyzed for their ability to biodegrade a harmful anthraquinone dye, i.e. Remazol Brilliant Blue R (RBBR). In RBBR-containing post-culture liquids, there were determined the degree of RBBR decolorization, horseradish peroxidase-like, superoxide dismutase-like, and xylanase activities, and the concentrations of low-molecular phenolic compounds. The study results demonstrated that Trichoderma asperellum, T. harzianum, and T. lixii strains isolated from compost containing larger amounts of easily available lignocellulose fractions, i.e. grasses, exhibit higher RBBR decolorization efficiency ranging from 0.3 to 62% than T. citrinoviride strains isolated from compost II, which contained greater quantities of hardly degradable lignocellulose. The decolorization of remazol blue R by the investigated Trichoderma strains intensified significantly with the increase in peroxidase activity and it was correlated with a decline in the content of low-molecular phenolic compounds. The dynamics of changes in the horseradish peroxidase-like, superoxide dismutase, and xylanase activities in the aqueous post-culture liquids of the investigated fungal strains depended largely on the duration of the culture. Given their ability to adapt to water environments, e.g. wastewater, and to decolorize and detoxify the RBBR anthraquinone dye, Trichoderma fungi can be used for bioremediation of such environments.
Źródło:
Archives of Environmental Protection; 2020, 46, 2; 12-20
2083-4772
2083-4810
Pojawia się w:
Archives of Environmental Protection
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of The Influence of Anthropogenic Pollution on Water Quality of the Ciemięga River
Autorzy:
Jóźwiakowski, Krzysztof
Listosz, Agnieszka
Micek, Agnieszka
Marzec, Michał
Gizińska-Górna, Magdalena
Rybczyńska-Tkaczyk, Kamila
Bohacz, Justyna
Wójcik, Mateusz
Brodowska, Natalia
Powiązania:
https://bibliotekanauki.pl/articles/1838402.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
anthropogenic pollution
Ciemięga river
water quality
eutrophication
Opis:
The aim of this paper was to evaluate the influence of anthropogenic pollution on the water quality of the Ciemięga River, which flows through the Jastków commune, located in the Lublin Province in the South-Eastern Poland. The analyses of the river water were conducted in the years 2019–2020. Each year, the samples for physicochemical analyses were collected seasonally (in February, May, August and November) from the seven selected Ciemięga River sampling points found in the following localities: Ożarów, Moszenki, Sieprawice, Jastków, Snopków and Jakubowice Konińskie. In addition, 3 series of microbiological analysis were conducted in 2020. Electrolytic conductivity, total phosphorus, nitrate-nitrogen and sulfates constituted the physicochemical indicators of poor water quality in the river. Their average values exceeded the standards for the 2nd class of water quality. High concentration of these indicators, especially of the total phosphorus, could have been related to the influx of domestic wastewater from agricultural holdings, wastewater flows from agricultural areas as well as soil erosion and leaching. The levels of E. coli bacteria and fecal coliform allocated the Ciemięga River waters to the 4th class of water quality and could result from domestic wastewater flow to the river. In order to improve the water quality of the Ciemięga River, it is necessary to reduce or eliminate point and non-point sources of pollution by means of streamlining of the agricultural areas fertilization, regulating the water and wastewater management, regulating of the waste management, as well as the appropriate spatial policy and landscaping of the water catchment areas.
Źródło:
Journal of Ecological Engineering; 2021, 22, 5; 143-155
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Identification and characteristics of biological agents in work environment of medical emergency services in selected ambulances
Autorzy:
Bielawska-Drózd, Agata
Cieślik, Piotr
Wlizło-Skowronek, Bożena
Winnicka, Izabela
Kubiak, Leszek
Jaroszuk-Ściseł, Jolanta
Depczyńska, Daria
Bohacz, Justyna
Korniłłowicz-Kowalska, Teresa
Skopińska-Różewska, Ewa
Kocik, Janusz
Powiązania:
https://bibliotekanauki.pl/articles/2161907.pdf
Data publikacji:
2017-06-19
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
bacteria
fungi
work environment
harmful biological agents
antimicrobial resistance
ambulances
Opis:
Objectives Assessment of microbial air quality and surface contamination in ambulances and administration offices as a control place without occupational exposure to biological agents; based on quantitative and qualitative analysis of bacteria, yeasts and filamentous fungi found in collected samples. Material and Methods The sampling was done by wet cyclone technology using the Coriolis recon apparatus, imprint and swab methods, respectively. In total, 280 samples from 28 ambulances and 10 offices in Warszawa were tested. Data was analyzed using Shapiro-Wilk normality test, Kruskal-Wallis test with α = 0.05. P value ≤ 0.05 was considered as significant. Results The levels of air contamination were from 0 to 2.3×10¹ colony-forming unit (CFU)/m³ for bacteria and for yeast and filamentous fungi were from 0 to 1.8×10¹ CFU/m³. The assessment of office space air samples has shown the following numbers of microorganisms: bacteria from 3.0×10¹ to 4.2×10¹ CFU/m³ and yeast and filamentous fungi from 0 to 1.9×10¹ CFU/m³. For surface contamination the mean bacterial count in ambulances has been between 1.0×10¹ and 1.3×102 CFU/25 cm² and in offices – between 1.1×10¹ and 8.5×10¹ CFU/25 cm². Mean fungal count has reached the level from 2.8×10⁰ to 4.2×10¹ CFU/25 cm² in ambulances and 1.3×10¹ to 5.8×10¹ CFU/25 cm² in offices. The qualitative analysis has revealed the presence of Acinetobacter spp. (surfaces), coagulase – negative Staphylococci (air and surfaces), Aspergillus and Penicillium genera (air and surfaces). Conclusions The study has revealed a satisfactory microbiological quantity of analyzed air and surface samples in both study and control environments. However, the presence of potentially pathogenic microorganisms in the air and on surfaces in ambulances may endanger the medical emergency staff and patients with infection. Disinfection and cleaning techniques therefore should be constantly developed and implemented. Int J Occup Med Environ Health 2017;30(4):617–627
Źródło:
International Journal of Occupational Medicine and Environmental Health; 2017, 30, 4; 617-627
1232-1087
1896-494X
Pojawia się w:
International Journal of Occupational Medicine and Environmental Health
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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