Risk analysis for water quality deterioration in distribution networks

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TypeBook Chapter
ConferenceEvaluation and Control of Water Loss in Urban Water Networks: 21 June 2004, Valencia, Spain
Pages126; # of pages: 26
Subjectwater quality, risk analysis, water quality monitoring; Water quality
AbstractWater quality can deteriorate in distribution networks through mechanisms like intrusion, regrowth of bacteria in pipes and storage tanks, water treatment failure, leaching of chemicals or corrosion products from system components and permeation of organic compounds through the pipe wall. The characterization and quantification of the risk posed to human health due to these deterioration mechanisms is a complex and highly uncertain process.This study describes a methodology for conducting human health risk assessment (analysis) of disinfection by-products formed in the distribution network. The elements of human health risk assessment, i.e., hazard identification, exposure and toxicity assessment, risk characterization and risk communication are discussed. An illustrative example describes the application of four different approaches, namely, deterministic, Monte Carlo simulations, and fuzzy-based and interval analyses to characterize the risk.The importance of incorporating uncertainty in risk estimates is demonstrated through the introduction of risk models that account for uncertainties in input variables.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedNo
NRC number47067
NPARC number20377480
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Record identifier34b35202-507c-462b-b040-15e28f30648a
Record created2012-07-24
Record modified2016-05-09
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