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Multimedia Environmental Models

2002· article· en· W2001546461 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenuePractice Periodical of Hazardous Toxic and Radioactive Waste Management · 2002
Typearticle
Languageen
FieldChemical Engineering
TopicOdor and Emission Control Technologies
Canadian institutionsTrent University
Fundersnot available
KeywordsComputer scienceBiochemical engineeringSustainabilityVariety (cybernetics)FidelityRisk analysis (engineering)Value (mathematics)Environmental scienceEcologyBusinessArtificial intelligenceEngineering

Abstract

fetched live from OpenAlex

In this introductory paper it is suggested that multimedia mass balance models can play a valuable role in improving our understanding of the behavior of chemicals in the environment. They can provide a rational basis for chemical management by linking emission rates to prevailing environmental concentrations and identifying such issues of concern as tendency to bioaccumulate, persistence for excessive times, and the potential to undertake intermedia transport. Four principles are outlined: the need for iterative modeling starting with simple models and progressing toward more complexity with fidelity to real conditions; the value of evaluative models as a means of focusing attention on how the chemicals’ properties translate into fate; the need for more validation of these models by comparing observations with simulations; and finally, the value of the fugacity concept as a means of expressing multimedia partitioning, transport, and transformation more simply. These principles are demonstrated by a case study in which a variety of models is applied to assess the fate and transport of hexachlorobenzene in evaluative, regional, and aquatic environments. This example demonstrates that multimedia models can provide a comprehensive, quantitative picture of how specific chemicals behave in the environment, thus contributing to conditions engineered such that the beneficial uses of chemicals can be enjoyed sustainably and without risk of adverse effects on humans or the ecosystem.

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.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Other design · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.926
Threshold uncertainty score0.772

Codex and Gemma teacher scores by category

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

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 head0.014
GPT teacher head0.219
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