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Assessment of water quality and identification of pollutants flowing into river musa using principal component analysis

2020· article· en· W3013401517 on OpenAlexaboutno aff
M. M. Maina, Abdulmumin Yunusa

Bibliographic record

VenueIOP Conference Series Earth and Environmental Science · 2020
Typearticle
Languageen
FieldEnvironmental Science
TopicWater Quality and Pollution Assessment
Canadian institutionsnot available
Fundersnot available
KeywordsPollutantEnvironmental scienceWater qualityPrincipal component analysisHydrology (agriculture)Index (typography)Environmental engineeringMathematicsChemistryStatisticsGeology

Abstract

fetched live from OpenAlex

Abstract Available evidence shows that rivers in any water shed area acts as a carrier of various pollutants and affect water quality for various purposes. The main aim of this study was to assess and identify pollutants flowing into River Musa in Bida for irrigaton purpose. Canadian Council Water Quality index (CCWQI) and Principal Component Analysis (PCA) were used. Water quality data were collected at different five stations along the river in 2018 during rainy and dry seasons. Ten water quality parameters (temperature, PH, EC, Mg, Na, Iron, Mn, Calcium, Potassium and SAR) were determined in five stations for assessing annual water quality index.Annual average water quality index at five locations are (74.47,72.85, 64.69,47.02 and 51,56). The results showed that three location are marginal and the remaining of the two are fair.The PCA was used to identify three major pollutants flowing to the river to be industrial, municipal and erosion. The WQI of the river is marginal and the implication is that the river is thus poised threat to high yielding results.

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)0.000
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.024
Threshold uncertainty score0.048

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0020.002
Science and technology studies0.0000.000
Scholarly communication0.0010.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

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 head0.047
GPT teacher head0.296
Teacher spread0.249 · 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 designObservational
Domainnot available
GenreEmpirical

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

Citations5
Published2020
Admission routes1
Has abstractyes

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