Formaldehyde pollution survey for decoration of new residential households in Jilin City
Bibliographic record
Abstract
Objective To explore the formaldehyde pollution in the air for the decoration room and the relevant factors.Method A new residential quarter away from industrial production was chosen.50 households which were decorated not more than half a year were selected.Portable meter was used to measure the concentration of indoor formaldehyde.Meanwhile,questionnaire was carried out on the concentration of formaldehyde-related factors.ResultsDifferent types of function rooms had different average formaldehyde concentration.Formaldehyde concentration in storage rooms were significantly higher than that in other rooms(P0.05),Formaldehyde concentration was significantly different at different time(P0.05).Different ventilation condition resulted in different formaldehyde concentration in rooms.Average formaldehyde concentration was significantly lower in rooms with regular ventilation than that in those with occasional ventilation(P0.05).Conclusions Formaldehyde pollution is very serious in this residential area.The factors of indoor formaldehyde concentration are degree of decoration,the empty duration after the ventilation and the ventilation condition.Simple decoration and good ventilation after more than six months will enable the formaldehyde concentration to reduce to the national standard.
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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 | 0.000 | 0.000 |
| 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 | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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".