Showing results for: water microbiology sampling Articles
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CASE STUDY - K5 Purefecta cartridge tested by Mycometer
The Kinetico K5 drinking water station with Purefecta cartridge clearly passed the test when examined by the Bactiquant®-water method (US-EPA, verified technology) developed by Mycometer. The method is based on a highly sensitive fluorescence technology which is used to detect and quantify an enzyme activity in bacteria. The fluorescence produced is directly proportional to the content of ...
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Comparison of the role of attachment, aggregation and internalisation of microorganisms in UVC and UVA (solar) disinfection
In this comparative study, the impact of two microbial protective mechanisms against simulated UVA disinfection was assessed by using protocols previously developed for UVC disinfection assays. (i) The impact of natural microorganism aggregation and attachment to particles was assessed by targeting total coliform bacteria in natural surface water samples. (ii) The impact of bacteria ...
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Quantification and identification of aerobic bacteria in holy water samples from a German environment
Despite its frequent use in many religious institutions, the microbiological quality of holy water is clearly underinvestigated. We analyzed the microbial load of 54 holy water samples, repeatedly taken in five Roman Catholic churches in the greater area of Villingen-Schwenningen, Germany, by means of aerobic colony counting and Matrix-Assisted Laser Desorption/Ionization (MALDI) Biotyping of ...
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Microbiological water quality and sampling policy of public swimming pools
Water samples collected from 100 public swimming pools in the West Bank of the Palestine by health inspectors. The samples were tested for microbiological quality for the years 2003, 2004 and 2005. The overall of unaccepted tested swimming pool water samples were as follows: 35.8% for total Coliforms (TC), 24.4% for faecal Coliforms (FC), 36% for Heterotrophic Plate Count (HPC), 39.3% Enterococci ...
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Microbiological quality of ice and ice machines used in food establishments
The ice used in the food industry has to be safe and the water used in ice production should have the quality of drinking water. The consumption of contaminated ice directly or indirectly may be a vehicle for transmission of pathogenic bacteria to humans producing outbreaks of gastrointestinal diseases. The objective of this study was to monitor the microbiological quality of ice, the water ...
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Removal of bacteria, protozoa and viruses through a multiple-barrier household water disinfection system
Municipal water disinfection systems in some areas are not always able to meet water consumer needs, such as ensuring distributed water quality, because household water management can be a contributing factor in water re-contamination. This fact is related to the storage options that are common in places where water is scarce or is distributed over limited time periods. The aim of this study is ...
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Prevent indoor air quality (IAQ) problems through regular testing programs
Indoor Air Quality (IAQ) Testing Programs We now offer a program designed to prevent Indoor Air Quality complaints and maintain good IAQ in commercial buildings. This program would include quarterly or semi-annual routine inspection of a commercial building (office, public service, retail, or entertainment). The testing programs would include an initial inspection focused on general indoor air ...
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Legionella Bacteria Water Sampling Methodology
This blog delves into systematic approaches for Legionella water testing, offering valuable insights into best practices and recommendations to ensure the safety of your ...
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The effect of sodium thiosulfate dechlorination on fecal indicator bacteria enumeration: laboratory and field data
In microbiological water quality testing, sample dechlorination with sodium thiosulfate is recommended to ensure that results accurately reflect the water quality at sample collection. Nevertheless, monitoring institutions in low-resource settings do not always dechlorinate samples, and there is limited research describing how this practice impacts drinking water quality results. The effect ...
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Development and validation of a FISH-based method for the detection and quantification of
E. coli and coliform bacteria in water samplesMonitoring of microbiological contaminants in water supplies requires fast and sensitive methods for the specific detection of indicator organisms or pathogens. We developed a protocol for the simultaneous detection of E. coli and coliform bacteria based on the Fluorescence in situ Hybridization (FISH) technology. This protocol consists of two approaches. The first allows the direct detection of ...
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The prevalence of bacterial resistance in clinical, food, water and some environmental samples in Southwest Nigeria
The resistance pattern and mechanisms of bacterial isolates obtained from clinical origin, soil, industrial effluent, orange juice products and drinking water were studied using commonly used antibiotics. The microbial load of the water samples, industrial effluent and orange juice products were 1.0 × 101–2.25 × 106, 2.15 × 105, and 3.5 × 104–2.15 × 105 cfu mL–1, respectively. The faecal coliform ...
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Microbial contamination and environmental factors of drinking water source for households with children under five years old in two South China ethnic groups
The article aimed to find the causes of microbial contamination of drinking water source, by exploring the influencing factors of water on the incidence of diarrhea in children. Random stratified-cluster sampling was used to study Li and Han communities of rural Lingshui County with regard to water quality and environmental sanitation. Water samples were evaluated for microbial contamination ...
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Microbes Run the World
Microbes run the world. They are the governing agents behind the conversion of key elements into vital biological forms. They remove toxins from their environments, and protect us from disease-causing organisms. Microbes do not, however, go to battle alone. Microbe armies live in complex communities that follow intricate processes and interactions to ensure environmental stability. Until ...
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Bioremediation/natural attenuation continues after ISCO treatment
Scientists and engineers from the private sector and EPA are evaluating the potential for in situ bioremediation and/or natural attenuation to successfully treat residual soil and ground-water contamination after source-area in situ chemical oxidation (ISCO) treatment. The studies were prompted by concerns that the two treatment technologies may be incompatible due to detrimental impacts on ...
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