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Wyszukujesz frazę "microbiological pollution" wg kryterium: Temat


Wyświetlanie 1-6 z 6
Tytuł:
Microbiological Risk in Rooms with Mechanical Ventilation
Autorzy:
Lisik, Katarzyna
Cichowicz, Robert
Powiązania:
https://bibliotekanauki.pl/articles/2202136.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
mechanical ventilation
microbiological pollution
dust pollution
air quality
bioaerosol
Opis:
The condition of air quality depends on many external (the amount of pollutant emissions, intensity and type of physico-chemical changes taking place in the atmosphere and large-scale movement of air pollutant masses) as well as internal factors (such as finishing materials, room equipment, heating systems, ventilation systems, and the presence of the humans themselves). As a result, there are various risks related to air quality, including the most important ones related to microbial contamination. For this reason, it was decided to analyze the quality of internal air in terms of microbiological contamination that may occur in university lecture halls with mechanical supply and exhaust ventilation. The analysis also took into account the impact of mechanical ventilation on physical parameters such as temperature, relative humidity as well as the concentration of PM10 and PM2.5 particulate matter pollutants, thus determining the impact of the tested parameters on human health and well-being. All the obtained results were compared with the applicable permissible standards and conclusions were drawn regarding the improvement of the quality of the indoor air microclimate.
Źródło:
Journal of Ecological Engineering; 2022, 23, 10; 164--171
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Microbiological pollution of soils and surface waters of the Pokuttia-Bukovyna Carpathians
Autorzy:
Masikevych, Andrij
Masikevych, Yurij
Malovanyу, Myroslav S.
Blyzniuk, Mykola
Powiązania:
https://bibliotekanauki.pl/articles/2174329.pdf
Data publikacji:
2022
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
bacteria
ecosystem
hydrosphere
microbiological pollution
national nature park
soil
Opis:
Based on the analysis of a number of studies, it was found that to assess the state of the environment (including surface waters and soils) it is advisable to use indicators of microbiological pollution, which in general integrally reflect the state of the ecosystem. To assess the dynamics of changes in the pollution of the studied areas, a comparison of monitoring data with the corresponding level of pollution in protected areas (Vyzhnytsia National Nature Park) was used. Research methods included soil and surface water sampling, inoculation on appropriate nutrient selective media, counting of colony forming units (CFU) and other microbiological indicators. To assess the biological activity of soils, urease activity was determined by a method generally accepted in biochemistry. It is established that within the protected areas, despite some existing annual fluctuations, the relative stability of the studied indicators of the hydrosphere is preserved. Studies have shown that soils of anthropogenically altered landscapes are characterised by a high content of sanitary-indicative bacteria. As our research shows, according to the colony forming units (CFU), total microbial count, and titer of Escherichia coli, the soils selected in the protected area of the Vyzhnytsia National Nature Park correspond to the “pure” level. The soils of the territories out of the National Nature Park are characterised by high biological capacity, as evidenced by the level of activity of the enzyme urease and the ratio of the main forms of nitrogen compounds.
Źródło:
Journal of Water and Land Development; 2022, 55; 91--96
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effectiveness of removing microbial pollutants from wastewater by the activated sludge method
Autorzy:
Budzińska, K.
Szejniuk, B.
Jurek, A.
Traczykowski, A.
Michalska, M.
Berleć, K.
Powiązania:
https://bibliotekanauki.pl/articles/208224.pdf
Data publikacji:
2014
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
wastewater treatment
water pollution
microbiological pollution
Salmonella
activated sludge
pathogenic microorganisms
Enterobacteriaceae
oczyszczanie ścieków
zanieczyszczenie wody
zanieczyszczenie mikrobiologiczne
osad czynny
mikroorganizmy chorobotwórcze
bakterie jelitowe
Opis:
Wastewater contains numerous saprophytic microorganisms, pathogenic and potentially pathogenic. Detection of bacteria indicating the sanitary state of polluted waters shows the possibility of occurring of pathogenic microorganisms in that environment. In the presented paper, the effectiveness of removing microbiological pollutions from wastewater treated by the activated sludge method has been evaluated, by estimating the elimination of E. coli, faecal streptococci, rods of the genus Salmonella and bacteria of the family Enterobacteriaceae. Experimental research showed that often in spite of a high degree of elimination of bacteria at individual stages of treatment, they are still identified in wastewater discharged to the water environment. The fact of occurring bacteria of the family Enterobacteriaceae and rods of Salmonella in treated wastewater discharged to surface waters is particularly worrying.
Źródło:
Environment Protection Engineering; 2014, 40, 4; 53-67
0324-8828
Pojawia się w:
Environment Protection Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Microbial and chemical quality assessment of the small rivers entering the South Baltic. Part 1, Case study on the watercourses in the Baltic Sea catchment area
Autorzy:
Bączkowska, Emilia
Kalinowska, Agnieszka
Ronda, Oskar
Jankowska, Katarzyna
Bray, Rafał
Płóciennik, Bartosz
Polkowska, Żaneta
Powiązania:
https://bibliotekanauki.pl/articles/2073797.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Baltic Sea
environmental pollution
fecal coliforms
coastal rivers
microbiological quality
chemical quality
Coastal Landscape Park
Opis:
The area of the Coastal Landscape Park (CLP) due to its location is extremely attractive touristic area. In the summer season, a significant increase in population density is observed, which influences surface water quality. Large numbers of tourists generate an increased amount of municipal wastewater, being treated in local treatment plants and discharged into rivers and streams. The paper presents preliminary research from summer 2016 on three watercourses ending in the Baltic Sea: Piaśnica, Karwianka and Czarna Wda rivers. It is a part of a long-term project conducted in CLP to assess surface waters quality. The scope of research included measurements of in situ parameters (temperature, conductivity, pH, dissolved oxygen). Chemical Oxygen Demand was determined using a spectrophotometer. Ion chromatography was used to determine ions concentrations (including biogenic compounds). Sanitary state of watercourses was assessed based on fecal coliforms abundance, which number was determined by the cultivation method. The determination of microbiological parameters such as: prokaryotic cell abundance expressed as total cells number (TCN), prokaryotic cell biovolume expressed as average cell volume (ACV), the prokaryotic biomass (PB) and prokaryotic cell morphotype diversity was determined using epifluorescence microscopy method. Results showed that water quality of Piaśnica and Czarna Wda rivers were affected by discharged treated wastewater. In the case of Karwianka River, the main pollution source could be surface runoff from fields and unregulated sewage management in this area. The conducted research confirmed the urgent need for better protection of this area to conserve both its ecosystem and value for tourism.
Źródło:
Archives of Environmental Protection; 2021, 47, 4; 55--73
2083-4772
2083-4810
Pojawia się w:
Archives of Environmental Protection
Dostawca treści:
Biblioteka Nauki
Artykuł
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:
Microbial and chemical quality assessment of the small rivers entering the South Baltic. Part II : Case study on the watercourses in the Puck Bay catchment area
Mikrobiologiczna i chemiczna ocena jakości małych rzek uchodzących do Południowego Bałtyku. Część II : Analiza cieków wodnych w zlewni Zatoki Puckiej
Autorzy:
Bączkowska, Emilia
Kalinowska, Agnieszka
Ronda, Oskar
Bray, Rafał
Płóciennik, Bartosz
Polkowska, Żaneta
Powiązania:
https://bibliotekanauki.pl/articles/2173784.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Baltic Sea
water pollution
coastal rivers
microbiological quality monitoring
chemical quality monitoring
fecal coliforms
coastal management
morze Bałtyckie
zanieczyszczenie wody
rzeki przybrzeżne
monitorowanie jakości mikrobiologicznej
monitorowanie jakości chemicznej
bakterie coli w kale
zarządzanie wybrzeżem
Opis:
Due to its location, Puck Bay is an area particularly vulnerable to pollution of anthropogenic origin. The aim of the study was to assess the water quality of small watercourses entering the inner part of Puck Bay. The paper presents the results of chemical and microbiological analyses of 10 rivers and canals at their estuaries located on the western shore of the internal Puck Bay. The following environmental parameters were analyzed: conductivity, pH, dissolved oxygen concentration (in situ measurements), COD (cuvette tests), concentrations of ions (ion chromatography). Microbiological analysis included assessment of sanitary condition based on the number of fecal coliforms by a cultivation method. The determination of basic microbiological parameters such as: prokaryotic cell abundance expressed as total cells number (TCN), prokaryotic cell biovolume expressed as average cell volume (ACV), the prokaryotic biomass (PB) and prokaryotic cell morphotype diversity were determined using epifluorescence microscopy method. Based on the obtained results, it was found that small watercourses may carry a notable load of anthropogenic pollution and thus affect the environment of Puck Bay. The results clearly indicate the need for quality monitoring in the rivers and canals in the Coastal Landscape Park, flowing into Puck Bay. The research showed that also smaller watercourses may have an impact on the coastal waters’ state, and thus on the Baltic Sea water quality.
Zatoka Pucka, ze względu na swoje położenie, jest obszarem szczególnie narażonym na zanieczyszczenia pochodzenia antropogenicznego. Celem pracy była ocena jakości wód małych cieków wodnych uchodzących do wewnętrznej części Zatoki Puckiej. W pracy przedstawiono wyniki analiz chemicznych i mikrobiologicznych 10 rzek i kanałów w ujściach zlokalizowanych na zachodnim brzegu wewnętrznej Zatoki Puckiej. Analizie poddano następujące parametry środowiskowe: przewodność, pH, stężenie tlenu rozpuszczonego (pomiary in situ), ChZT (testy kuwetowe), stężenie jonów (chromatografia jonowa). Analiza mikrobiologiczna obejmowała ocenę stanu sanitarnego na podstawie liczby bakterii grupy coli typu kałowego metodą hodowlaną. Oznaczenia parametrów mikrobiologicznych takich jak: liczebność komórek prokariotycznych, średnia objętość komórek, biomasa oraz zróżnicowanie morfotypowe komórek prokariotycznych określono metodą mikroskopii epifluorescencyjnej. Na podstawie uzyskanych wyników stwierdzono, że małe cieki mogą przenosić znaczny ładunek zanieczyszczeń antropogenicznych i tym samym wpływać na środowisko Zatoki Puckiej. Uzyskane wyniki jednoznacznie wskazują na potrzebę prowadzenia monitoringu jakości rzek i kanałów w Nadmorskim Parku Krajobrazowym uchodzących do Zatoki Puckiej. Z badań wynika, że również mniejsze cieki mogą mieć wpływ na stan wód przybrzeżnych, a tym samym na jakość wód Morza Bałtyckiego.
Źródło:
Archives of Environmental Protection; 2022, 48, 1; 58--74
2083-4772
2083-4810
Pojawia się w:
Archives of Environmental Protection
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-6 z 6

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