نتایج جستجو برای: fecal indicator bacteria

تعداد نتایج: 275955  

Journal: :Applied microbiology 1974
G A McFeters G K Bissonnette J J Jezeski C A Thomson D G Stuart

The comparative survival of various fecal indicator bacteria and enteric pathogens was studied in a stable well water supply by using membrane chambers. There was more variation in the 29 coliform cultures and they died more rapidly, as a group, than the 20 enterococcus cultures that were examined. The comparative survival of the organisms tested follows: Aeromonas sp. > the shigellae (Shigella...

2010
Timothy J Wade Elizabeth Sams Kristen P Brenner Richard Haugland Eunice Chern Michael Beach Larry Wymer Clifford C Rankin David Love Quanlin Li Rachel Noble Alfred P Dufour

INTRODUCTION In the United States and elsewhere, recreational water quality is monitored for fecal indicator bacteria to help prevent swimming-associated illnesses. Standard methods to measure these bacteria take at least 24 hours to obtain results. Molecular approaches such as quantitative polymerase chain reaction (qPCR) can estimate these bacteria faster, in under 3 hours. Previously, we dem...

Journal: :Applied and environmental microbiology 2005
Peter Cox Merran Griffith Mark Angles Daniel Deere Christobel Ferguson

A fecal analysis survey was undertaken to quantify animal inputs of pathogenic and indicator microorganisms in the temperate watersheds of Sydney, Australia. The feces from a range of domestic animals and wildlife were analyzed for the indicator bacteria fecal coliforms and Clostridium perfringens spores, the pathogenic protozoa Cryptosporidium and Giardia, and the enteric viruses adenovirus, e...

Journal: :Brazilian journal of biology = Revista brasleira de biologia 2018
M Oliveira D Freire N M Pedroso

The detection of pathogenic microorganisms in aquatic environments is extremely relevant in terms of public health. As these laboratorial methodologies are usually difficult, expensive and time-consuming, they are frequently replaced by the assessment of fecal indicator bacteria, such as Escherichia coli. This study aimed to assess the presence of E. coli in fecal samples from Neotropical otter...

Journal: :The Science of the total environment 2011
Peter S K Knappett Veronica Escamilla Alice Layton Larry D McKay Michael Emch Daniel E Williams R Huq J Alam Labony Farhana Brian J Mailloux Andy Ferguson Gary S Sayler Kazi M Ahmed Alexander van Geen

A majority of households in Bangladesh rely on pond water for hygiene. Exposure to pond water fecal contamination could therefore still contribute to diarrheal disease despite the installation of numerous tubewells for drinking. The objectives of this study are to determine the predominant sources (human or livestock) of fecal pollution in ponds and examine the association between local populat...

Journal: :Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering 2006
X Zhang M Lulla

This study evaluated the bacterial distribution and the survivability of bacteria associated with different particle size ranges in the sump water and sediments within two structural Best Management Practices (BMPs), called Vortechs, installed at two different sites in Providence, Rhode Island. Ten rain storms were sampled in year 2004. Five pathogenic indicator bacteria, E. coli, enterococci, ...

Ali Shahryari, Mohamad Gharekhan Alostani, Rahim Aali, Zahra Mirshekar,

Introduction: As recommended by World Health Organization, consumption of the fungal contaminated water does not cause to serious infection, but may lead to healthy or aesthetic problems. The aim of this research was to assess the occurrence of fungi in water and its relationship with fecal indicator bacteria. Materials and Methods: 110 water samples were collected from different location of w...

2015
Ashley R. Williams Robert E. S. Bain Michael B. Fisher Ryan Cronk Emma R. Kelly Jamie Bartram Mei Li

BACKGROUND Packaged water products provide an increasingly important source of water for consumption. However, recent studies raise concerns over their safety. OBJECTIVES To assess the microbial safety of packaged water, examine differences between regions, country incomes, packaged water types, and compare packaged water with other water sources. METHODS We performed a systematic review an...

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