Rolling revisions of the guidelines for drinking-water quality : aspects of protection and control and of microbiological quality : report on a WHO meeting, Medmenham, United Kingdom, 17-21 March 1998

Abstract

The WHO Guidelines for drinking-water quality provide important information for regulators, scientists and practitioners concerned with drinking-water supply and quality worldwide. Since the second edition of the Guidelines was published, a process of continuous updating has been implemented, supported by three working groups addressing microbiological aspects, chemical aspects and aspects of protection and control. A WHO Working Group of 23 experts met to discuss the progress to date and the future planning of the process of revision. The Working Group reviewed the development of a series of technical guidance documents and recommended publishing those dealing with fluoride and cyanobacteria. It also adopted microbiology review documents for Aeromonas, hepatitis viruses, Legionella, protozoa and Vibrio cholerae and developed a future strategy for revising the microbiological aspects of the Guidelines