Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 18 of 18 for “"Faecal contamination"”.
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Bovine faecal contamination in an Irish agricultural catchment: sources and pathways
… surface waters have been an intensive source of contamination on freshwaters worldwide. Faecal contamination is one of the most under regulated and poorly understood pollutants within Irelands surface waters, despite is widely recorded ability to cause harm to both animals and the environment. …
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Human Adenoviruses As Indicators Of Faecal Contamination And Pathogen Indices In The Environment And Shellfish
… HAdVs and HPyVs are suitable indices for viral contamination from faecal sources. Furthermore, due to their continued occurrence in the environment and their host specificity, these viruses also have potential for microbial source tracking applications. However, one caveat identified was the …
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Comparing the distribution of pathogenic bacteria and common indicator microorganisms in biofilms on different surface types in an agricultural watershed in British Columbia (Canada)
… health. To do so, we monitored the presence of faecal contamination indicators (heterotrophic plate counts, faecal coliforms, enterococci, and E. coli) and particular pathogens (E. coli 0157, Campylobacter sp. and Salmonella sp.) in water, sediment, and in biofilms on river and slate rock, wood, …
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Aspectos epidemiológicos e microbiológicos na distribuição da água potável em comunidade de João Pessoa - PB.
… maintenance of life, however , associated with contamination diseases represent a major threat to health humana.Este work aimed to identify epidemiological and microbiological aspects in the distribution of drinking water in communities in the municipality of João Pessoa . 246 individu als were …
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Development of an excreta pathway for Kanyama peri-urban area of Lusaka using the shit flow diagram (SFD) tool.
… exposure of the public and the environment to faecal contamination leading to the regular outbreaks of waterborne diseases such as cholera, dysentery and typhoid. In addition, 57 percent of Lusaka water supply is from groundwater resources (boreholes) which are dotted within the city and are …
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Safe drinking water: Experience with Water Safety Plans and assessment of risk factors in water supply
… factors and comparing the results with an actual faecal contamination of drinking water that caused a norovirus outbreak in Iceland. The results of the research confirm several quantifiable beneficial effects of WSP on water quality and public health as well as on operation of water utilities. It …
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THE DOUBLE BOND IN Δ1-2 POSITION OF STEROIDS: A MATTER OF CONTROVERSY IN THE CONTROL OF ILLICIT TREATMENTS OF FARM ANIMALS
… its 17-oxidized form, in consequence of faecal contamination, mainly through a high neo production in faeces-contaminated urine. A simple in vitro method was developed – incubation of faecal matter suspended in 0.9% saline – to induce steroid transformations in faeces, and analyzed the …
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An analysis of nature-based treatment processes for cleaning contaminated surface water runoff from an informal settlement: a case study of the Stiebeuel River catchment, Franschhoek, South Africa
… additional disinfection was required to reduce faecal contamination in some cases. Correlation analyses showed that inflow water quality significantly influenced cell performance, with the vegetated cell outperforming the non-vegetated cell under higher inflow pollutant concentrations. Multiple …
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Phenotypic and Genotypic Characteristics for Escherichia coli strains responsible for bacterial bloom events in Australia
… coli is widely used as an indicator of recent faecal contamination of drinking and recreational waters. However, evidence suggests that E. coli can proliferate in the environment outside a host, confounding its use as a faecal indicator. E. coli strains that produce significantly elevated …
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Phenotypic and Genotypic Characteristics for Escherichia coli strains responsible for bacterial bloom events in Australia
… coli is widely used as an indicator of recent faecal contamination of drinking and recreational waters. However, evidence suggests that E. coli can proliferate in the environment outside a host, confounding its use as a faecal indicator. E. coli strains that produce significantly elevated …
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Hand-washing and its impact on child health in Kathmandu, Nepal
… In such highly contaminated environments, faecal contamination of hands is just one of the many pathways by which these children are exposed to pathogenic organisms. The biggest threat to the health of these children is not poor hygiene behaviour, but life in the slum. Comprehensive …
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Characterization of E. coli strains from rural communities in the Vhembe District (Limpopo South Africa)
… It is used as an indicator that confirms recent faecal contamination. E. coli have been identified amongst the pathogens that are mostly responsible for moderate to severe diarrheal outbreaks in the low and middle-income countries. With South Africa facing an issue in water scarcity, issues …
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The assessment of water supply system efficiency and water quality in Standerton, Lekwa Municipality, Mpumalanga, South Africa
… ineffective disinfection and possible contamination within the distribution network. Of particular concern was the detection of E. coli, suggesting faecal contamination and increased risk of waterborne diseases. The elevated turbidity, Mn and Fe levels also affected water aesthetics, …
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Extended-Spectrum Beta-Lactamase-Producing Enterobacteriaceae: Epidemiology, Risk Factors, and Duration of Carriage
… demonstrated that huge numbers of ESBL-positive faecal samples were collected from patients who contracted travellers’ diarrhoea after visiting high-risk areas. Twenty-four percent of patients with travellers’ diarrhoea were colonized with ESBL-producing. Strains of ESBL-producing E. coli were …
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Miniaturised analytical systems with chemiluminescence detection for environmental applications
… measure E. coli in seawater as an indicator of faecal contamination. A review of traditional methods and current research on the area is presented. Immunological techniques based on using antibodies to specifically bind to their respective antigens were found to be the most amenable method of …
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Assessment of health risk association with groundwater from Collins Chabane and Makhado Municipality of Vhembe District
… vulnerability to Physico-chemical and microbial contamination across the Collins Chabane and Makhado Municipality. A three-set of samples (for metals, non-metals and microbial analysis) were randomly collected from twenty (20) primary schools, fifteen (15) private boreholes, and three (3) …