Transport of trifluralin on wind-eroded sediment
Bibliographic record
Abstract
Wind erosion is one of the major forms of soil degradation on the Canadian prairies. Particulate matter emanating from agricultural soil can be transported long distances in the atmosphere and, if the soil has significant clay content, would contain particles less than 2 μm in diameter. Particles of this size range have been associated with respiratory health effects in humans and if they have pesticides associated with them the risk of health effects may be increased. A field experiment was conducted near Regina, Saskatchewan, to determine the trifluralin (2,6-dinitro-N,N-dipropyl-4-trifluoromethylaniline) content in wind-eroded sediment from a soil-incorporated application of the herbicide into Regina heavy (71%) clay soil. Three wind erosion events were monitored in which the total estimated soil loss was 62.4 Mg ha -1 . The concentration of trifluralin in the winderoded sediment did not show a consistently significant increase with sampler height (10 to 100 cm) and, by implication, decreasing sediment particle size. The concentration of trifluralin in the wind-eroded sediment was lower than that in the incorporation layer and in the surface soil (upper 0.5 to 1 cm). The overall wind erosion loss of trifluralin, as a percent of the amount applied, during three erosion events was 1.4%. The results of this study indicate that human exposure to atmospheric particulate matter, especially in agricultural areas, may simultaneously involve exposure to pesticides. Key words: Trifluralin, wind erosion, wind-eroded sediment, heavy clay
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 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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, 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".