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Water Quality Failure Pathways

2019· other· en· W2998399341 on OpenAlexaff
Guangji Hu, Haroon R. Mian, James Hager, Rehan Sadiq

Bibliographic record

VenueEncyclopedia of Water · 2019
Typeother
Languageen
FieldEnvironmental Science
TopicWater Treatment and Disinfection
Canadian institutionsOkanagan University CollegeUniversity of British Columbia, Okanagan CampusUniversity of British Columbia
Fundersnot available
KeywordsWater qualityEnvironmental scienceWater treatmentQuality (philosophy)Waterborne diseasesWater supplyEnvironmental planningDisinfectantEnvironmental engineeringBusinessChemistryEcology

Abstract

fetched live from OpenAlex

Abstract Water utilities around the globe strive to provide safe and reliable drinking water supplies to the public. Based on human health and aesthetic considerations, various water quality parameters have been developed by the World Health Organization (WHO) for effective water quality monitoring and communication. The water quality parameters are listed in the Guidelines for Drinking‐water Quality, providing references to water regulatory authorities in developing water guidelines/standards that fit local circumstances. Water quality parameters can generally be divided into four aspects, including chemical, biological, radiological, and acceptability parameters. Water quality failure in water distribution systems (WDSs) can pose great threats to human health since a WDS in many cases is the last barrier providing water quality protection. In WDSs, five important pathways, including contaminant intrusion, leaching and corrosion, permeation, biofilm formation and microbial regrowth, and the formation of disinfectant byproducts (DBPs), are responsible for water quality failure. A water quality management system (WQMS) comprises operational protocols and communication mechanisms and is required as guidance on effective water quality management. A WQMS standard has also been recommended by the WHO to assist water supply stakeholders in developing localized water quality management frameworks to minimize the risk of water quality failure.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.003
metaresearch head score (Gemma)0.008
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: none
GenreCandidate signal: Other · Consensus signal: Other
Teacher disagreement score0.072
Threshold uncertainty score0.242

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0030.008
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0000.001
Bibliometrics0.0040.004
Science and technology studies0.0020.001
Scholarly communication0.0050.004
Open science0.0020.007
Research integrity0.0020.002
Insufficient payload (model declined to judge)0.0720.012

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.009
GPT teacher head0.214
Teacher spread0.205 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designNot applicable
Domainnot available
GenreOther

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations4
Published2019
Admission routes1
Has abstractyes

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