A study of contaminant remediation guidelines for soil and groundwater near an insecticide factory
Bibliographic record
Abstract
To calculate remediation objectives for 1,2-dichloroethane and 1,2-dichloropropane in soil and groundwater near a insecticide factory,procedures Tier 1 and Tier 2 were chosen from the Canadian Alberta SGRG tiered approach model.By using parameters suitable for our country,the generic Tier 1 guidelines were developed.The guidelines of the seepage sink soil are 6.2 μg /kg for 1,2-dichloroethane and 67 μg /kg for 1,2-dichloro-propane.The groundwater guidelines are 5 μg /L for both 1,2-dichloroethane and 1,2-dichloropropane.Tier 2 can adjust the Tier 1 guidelines based on a critical on-site survey.The seepage sink soil final remediation objectives are 11 μg /kg for 1,2-dichloroethane and 45 μg /kg for 1,2-dichloropropane.The groundwater final objectives are still 5 μg /L for both 1,2-dichloroethane and 1,2-dichloropropane.The adjustment of the guidelines was in accordance with the tiered approach theory.Note that the value of 1,2-dichloroethane in protecting of DUA pathway became restrictive due to site-specific characteristics.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot 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.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.003 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
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".