Identifying challenges in drinking water supplies: assessment of boil water advisories in Norway (2008–2019)

The issuing of boil water advisories (BWAs) is a widely used response to microbiological contamination events in drinking water supply systems, and may therefore serve as an indicator for the access to safe drinking water. To supplement data source on the overall status of water supply systems (WSSs...

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Autores principales:	Susanne Hyllestad, Svanhild Schipper Kjørsvik, Lamprini Veneti, Ettore Amato
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	boil water advisories drinking water media microbiological contamination public health Public aspects of medicine RA1-1270
Acceso en línea:	https://doaj.org/article/b9f9c84f0f434abd830dcc4bf56af296
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spelling	oai:doaj.org-article:b9f9c84f0f434abd830dcc4bf56af2962021-11-06T06:31:12ZIdentifying challenges in drinking water supplies: assessment of boil water advisories in Norway (2008–2019)1477-89201996-782910.2166/wh.2021.141https://doaj.org/article/b9f9c84f0f434abd830dcc4bf56af2962021-10-01T00:00:00Zhttp://jwh.iwaponline.com/content/19/5/872https://doaj.org/toc/1477-8920https://doaj.org/toc/1996-7829The issuing of boil water advisories (BWAs) is a widely used response to microbiological contamination events in drinking water supply systems, and may therefore serve as an indicator for the access to safe drinking water. To supplement data source on the overall status of water supply systems (WSSs) in Norway, we analysed public media reports published in Norway to assess trends, causes, geographical and seasonal distribution of BWAs issued during the period 2008–2019. We identified 1,108 BWA events increasingly reported over the study period but characterised by a decreasing trend in time with respect to duration. The two main frequent causes for BWA were detection of faecal indicator bacteria (42.6%) and risk of contaminants intrusion in the distribution system (21%). We observed higher reporting rates in summer and autumn compared with winter, and higher reporting rates in Northern and Eastern Norwegian regions compared with the Central region. The results of this study could serve as supplementary information to better understand the overall status among WSSs in Norway, particularly in case of recurrent BWA's events, as well as suggest the relevance of BWAs' monitoring in identifying risk factors and planning targeted interventions. HIGHLIGHTS Trends of boil water advisories.; Assessment of risks in drinking water supplies.; Media reports as data source for drinking water status.;Susanne HyllestadSvanhild Schipper KjørsvikLamprini VenetiEttore AmatoIWA Publishingarticleboil water advisoriesdrinking watermediamicrobiological contaminationpublic healthPublic aspects of medicineRA1-1270ENJournal of Water and Health, Vol 19, Iss 5, Pp 872-884 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	boil water advisories drinking water media microbiological contamination public health Public aspects of medicine RA1-1270
spellingShingle	boil water advisories drinking water media microbiological contamination public health Public aspects of medicine RA1-1270 Susanne Hyllestad Svanhild Schipper Kjørsvik Lamprini Veneti Ettore Amato Identifying challenges in drinking water supplies: assessment of boil water advisories in Norway (2008–2019)
description	The issuing of boil water advisories (BWAs) is a widely used response to microbiological contamination events in drinking water supply systems, and may therefore serve as an indicator for the access to safe drinking water. To supplement data source on the overall status of water supply systems (WSSs) in Norway, we analysed public media reports published in Norway to assess trends, causes, geographical and seasonal distribution of BWAs issued during the period 2008–2019. We identified 1,108 BWA events increasingly reported over the study period but characterised by a decreasing trend in time with respect to duration. The two main frequent causes for BWA were detection of faecal indicator bacteria (42.6%) and risk of contaminants intrusion in the distribution system (21%). We observed higher reporting rates in summer and autumn compared with winter, and higher reporting rates in Northern and Eastern Norwegian regions compared with the Central region. The results of this study could serve as supplementary information to better understand the overall status among WSSs in Norway, particularly in case of recurrent BWA's events, as well as suggest the relevance of BWAs' monitoring in identifying risk factors and planning targeted interventions. HIGHLIGHTS Trends of boil water advisories.; Assessment of risks in drinking water supplies.; Media reports as data source for drinking water status.;
format	article
author	Susanne Hyllestad Svanhild Schipper Kjørsvik Lamprini Veneti Ettore Amato
author_facet	Susanne Hyllestad Svanhild Schipper Kjørsvik Lamprini Veneti Ettore Amato
author_sort	Susanne Hyllestad
title	Identifying challenges in drinking water supplies: assessment of boil water advisories in Norway (2008–2019)
title_short	Identifying challenges in drinking water supplies: assessment of boil water advisories in Norway (2008–2019)
title_full	Identifying challenges in drinking water supplies: assessment of boil water advisories in Norway (2008–2019)
title_fullStr	Identifying challenges in drinking water supplies: assessment of boil water advisories in Norway (2008–2019)
title_full_unstemmed	Identifying challenges in drinking water supplies: assessment of boil water advisories in Norway (2008–2019)
title_sort	identifying challenges in drinking water supplies: assessment of boil water advisories in norway (2008–2019)
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/b9f9c84f0f434abd830dcc4bf56af296
work_keys_str_mv	AT susannehyllestad identifyingchallengesindrinkingwatersuppliesassessmentofboilwateradvisoriesinnorway20082019 AT svanhildschipperkjørsvik identifyingchallengesindrinkingwatersuppliesassessmentofboilwateradvisoriesinnorway20082019 AT lampriniveneti identifyingchallengesindrinkingwatersuppliesassessmentofboilwateradvisoriesinnorway20082019 AT ettoreamato identifyingchallengesindrinkingwatersuppliesassessmentofboilwateradvisoriesinnorway20082019
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Identifying challenges in drinking water supplies: assessment of boil water advisories in Norway (2008–2019)

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