Characterization of anionic surfactant-induced toxicity in a primary effluent
Why this work is in the frame
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Bibliographic record
Abstract
A simple and rapid analytical approach was developed that can be used to investigate the anionic surfactant-induced toxicity associated with the primary effluent from the Lions Gate wastewater treatment plant (North Vancouver, BC). Using this approach, the effluent was characterized on two occasions in terms of anionic surfactant concentration and anionic surfactant-induced toxicity. The results suggest that the concentration of anionic surfactants, measured as methylene blue active substances (MBAS), in the primary effluent increased throughout each day and was highest at night (11:30 p.m.). The toxicity, measured using Vibrio fischeri bioassays (i.e., MicroTox™), also increased throughout each day and was the highest at night. The high molecular weight fraction of anionic surfactants was identified as the most toxic fraction although it was present at the lowest concentration. The results of the present study suggest that the concentration of the high molecular weight fraction of anionic surfactants could be used as a good surrogate to easily and rapidly quanitfy the anionic surfactant-induced toxicity of the primary effluent.
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Full frame distilled prediction
Teacher imitationNot 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.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it