Bacteria from the family Enterobacteriaceae in reused water and their antibiotic susceptibility
The aim of this study is to evaluate the presence of bacteria from the Enterobacteriaceae family (i.e. total coliforms, thermotolerant coliforms and Escherichia coli) in different types of recycled waters (grey water, rain water and reclaimed water from the public city fountains) and problems with their detection (especially ensitivity and specificity of detection methods). The species composition of coliform bacteria in purified grey waters with their antibiotic resistance are presented.
New European Union Directive on Drinking Water
A proposal for a complete amendment to Directive 98/83/EC on the quality of water intended for human consumption was approved in February 2020. The new Directive came into force after all official procedures on 16 December 2020.
Search for suitable molecular markers for species differentiation of enterococci
Enterococci, together with representatives of the species Escherichia coli, belong to the so-called indicators of faecal pollution, which are used in the evaluation of the microbiological quality of bathing waters. Their determination is governed by the Decree of the Ministry of Health No. 238/2011 Coll. and performed by culture on selective agar media.
Classification of surface water quality
This article deals with new Czech Standard 75 7221 Water quality – Classification of surface water quality [1] and replaces the previous 19 years old standard [2]. It was necessary to take into account actual demands of the surface water protection from two points of view: pollution indicator selection and current environmental quality standards. The range of pollution indicators and limit values of water classification were revised.
Microbial pollution of surface waters
The aim of this study is a summary of problems dealing with microbial pollution of flowing surface waters in the Czech Republic. Limits of counts of indicator microorganisms in current legislation and technical standards are presented, together with characteristics of the mostly used indicators of faecal pollution and methods of their detection.
The quality and evaluation of surface waters – presentation of the project
The research team, consisting of experts from the TGM Water Research Institute, p. r. i. (RNDr. Dana Baudišová, Ph.D., Ing. Tomáš Mičaník, Ing. Eduard Hanslík, Ph.D., Mgr. Denisa Němejcová and others), started from February 2016 work on the research project “The quality and evaluation of surface waters”.
Detection of total coliforms and Escherichia coli on chromogenic medium
The aim of this study is introduction and practice of chromogenic medium CCA that is prescribed in the amendment of EN ISO 9308-1 standard for detection of Escherichia coli and coliform bacteria in waters with low bacteria background flora.
