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Title: Risk management of water systems in residential homes : The ‘process’ of Legionella prevention
Authors : Leiblein, Thomas W.
Füchslin, Hans Peter
Keserue, Hans Anton
Tucker, Matthew
Hofer, Susanne
Proceedings: Research papers for EuroFM’S 16th Research Symposium EFMC2017, 25-28 April 2017 in Madrid, Spain
Pages : 78
Pages to: 90
Conference details: EFMC 2017, Madrid, Spain, 25-28 April 2017
Editors of the parent work: Balslev Nielsen, Susanne
Anker Jensen, Per
Brinkø, Rikke
Publisher / Ed. Institution : Polyteknisk Forlag
Publisher / Ed. Institution: Lyngby
Issue Date: Apr-2017
License (according to publishing contract) : Not specified
Type of review: Peer review (Publication)
Language : English
Subjects : Risk management; Process; prevention; Water system; Legionella
Subject (DDC) : 363: Environmental and security problems
658.2: Facility Management
Abstract: In the present study data was collect and analysed to gain evidence for the present situation of Legionella risk management and prevention of water systems in different buildings in the Canton of Zurich, Switzerland. These buildings comprise retirement homes, care homes and dwellings for people with a disability. According to given legislation, standards and technical rules, duty holders are liable for the quality of drinking water distributed by the water system in a building. Showers represent a frequently used, aerosol-generating device in the domestic setting and have been proposed as a source of Legionnaires’ disease, caused by Legionella bacteria. This study investigated the prevalence of Legionella in showers which are recognised as a potential source of risk of contamination for users. During a field campaign, data from ten buildings were collected. Water was sampled from showers and analysed with reproducible sampling procedures. As a second source of data, information concerning technical specifications and operating parameters of the (hot) water systems and shower facilities was collected from the operating manager through a semi-structured questionnaire. Based on the microbiological results provided by the classical culture method, a Legionella contamination was detected in two objects. Three additional care facilities showed raised results according to a different method applied. Evaluation of the responses given in the questionnaire revealed that control functions and documentation seem to be either unsatisfactory within the institutions, or are missing completely. Although the small size of the sample in this study does not permit generalizable statements, the results provide a solid foundation upon which further investigations can be based.
Departement: Life Sciences und Facility Management
Organisational Unit: Institute of Facility Management (IFM)
Publication type: Conference Paper
DOI : 10.21256/zhaw-1270
ISBN: 9788750211129
Appears in Collections:Publikationen Life Sciences und Facility Management

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