Risk-Based Evaluation of Improvements in DrinkingWaterTreatment Using Cost-Benefit Analysis
(2022) In Water 14(5).- Abstract
- Reliable and safe drinking water supply requires adequate risk management. Decisionsupport models can aid decisionmakers to effectively evaluate risk mitigation measures and allocatesocietal resources. Here, a Swedish case study illustrates how the installation of ultrafiltrationmembranes can be evaluated by combining risk assessment and cost-benefit analysis. Quantitativemicrobial risk assessment was used to assess several contamination sources and estimate the achievedrisk reduction from waterborne pathogens using Campylobacter, Norovirus, and Cryptosporidiumas reference pathogens. The societal value of the improved water quality was estimated in thecost-benefit analysis by monetising the gained quality adjusted life years and aesthetic... (More)
- Reliable and safe drinking water supply requires adequate risk management. Decisionsupport models can aid decisionmakers to effectively evaluate risk mitigation measures and allocatesocietal resources. Here, a Swedish case study illustrates how the installation of ultrafiltrationmembranes can be evaluated by combining risk assessment and cost-benefit analysis. Quantitativemicrobial risk assessment was used to assess several contamination sources and estimate the achievedrisk reduction from waterborne pathogens using Campylobacter, Norovirus, and Cryptosporidiumas reference pathogens. The societal value of the improved water quality was estimated in thecost-benefit analysis by monetising the gained quality adjusted life years and aesthetic water qualityimprovements. The calculated net present value (mean of 7 MEUR) indicated that the installation ofthe ultrafiltration membranes was a sound investment from a societal economic perspective. Theultrafiltration membranes reduced the annual probability of infection from 3x10-2 to 10-7, wellbelow the U.S. EPA’s acceptable level, as well as improving the aesthetic quality of the drinking water.The results provide a novel example of the importance for water distributors to consider not onlyhealth-related metrics when evaluating treatment options or monitoring the drinking water quality,but to also consider the aesthetic quality of the drinking water. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/198b221e-d41b-4675-9037-e777c63ffa1a
- author
- Sköld, Nils-Petter ; Bergion, Viktor ; Lindhe, Andreas ; Keucken, Alexander LU and Rosén, Lars
- organization
- publishing date
- 2022-03-02
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- decision support, drinking water quality, Cost-Benefit Analyses, quality adjusted life year, Quantitative Microbial Risk Assessment, Willingness to Pay
- in
- Water
- volume
- 14
- issue
- 5
- pages
- 14 pages
- publisher
- MDPI AG
- external identifiers
-
- scopus:85125801678
- ISSN
- 2073-4441
- DOI
- 10.3390/w14050782
- language
- English
- LU publication?
- yes
- id
- 198b221e-d41b-4675-9037-e777c63ffa1a
- date added to LUP
- 2022-03-03 09:57:58
- date last changed
- 2022-04-26 17:00:26
@article{198b221e-d41b-4675-9037-e777c63ffa1a,
abstract = {{Reliable and safe drinking water supply requires adequate risk management. Decisionsupport models can aid decisionmakers to effectively evaluate risk mitigation measures and allocatesocietal resources. Here, a Swedish case study illustrates how the installation of ultrafiltrationmembranes can be evaluated by combining risk assessment and cost-benefit analysis. Quantitativemicrobial risk assessment was used to assess several contamination sources and estimate the achievedrisk reduction from waterborne pathogens using Campylobacter, Norovirus, and Cryptosporidiumas reference pathogens. The societal value of the improved water quality was estimated in thecost-benefit analysis by monetising the gained quality adjusted life years and aesthetic water qualityimprovements. The calculated net present value (mean of 7 MEUR) indicated that the installation ofthe ultrafiltration membranes was a sound investment from a societal economic perspective. Theultrafiltration membranes reduced the annual probability of infection from 3x10-2 to 10-7, wellbelow the U.S. EPA’s acceptable level, as well as improving the aesthetic quality of the drinking water.The results provide a novel example of the importance for water distributors to consider not onlyhealth-related metrics when evaluating treatment options or monitoring the drinking water quality,but to also consider the aesthetic quality of the drinking water.}},
author = {{Sköld, Nils-Petter and Bergion, Viktor and Lindhe, Andreas and Keucken, Alexander and Rosén, Lars}},
issn = {{2073-4441}},
keywords = {{decision support; drinking water quality; Cost-Benefit Analyses; quality adjusted life year; Quantitative Microbial Risk Assessment; Willingness to Pay}},
language = {{eng}},
month = {{03}},
number = {{5}},
publisher = {{MDPI AG}},
series = {{Water}},
title = {{Risk-Based Evaluation of Improvements in DrinkingWaterTreatment Using Cost-Benefit Analysis}},
url = {{http://dx.doi.org/10.3390/w14050782}},
doi = {{10.3390/w14050782}},
volume = {{14}},
year = {{2022}},
}