Air concentrations (ppm) of N,N-dimethylformamide (DMF) across five consecutive days for the workers in a synthetic leather (SL) factory and a copper laminate circuit board (CLCB) factory*
| Weekday | W1 | W2 | W3 | W4 | W5 | W1–W5 | F value* | |
|---|---|---|---|---|---|---|---|---|
| *The airborne concentrations of DMF collected from the reference groups on W1 and W5 for each subject were under detection limit (0.53 μg/ml). | ||||||||
| †p>0.05 by one way ANOVA test. | ||||||||
| SL | n | 22 | 22 | 23 | 25 | 25 | 117 | |
| GM (GSD) | 3.98 (1.77) | 3.54 (1.95) | 5.13 (1.91) | 3.24 (2.00) | 4.45 (1.82) | 3.98 (1.91) | ||
| Range | 1.28–14.39 | 0.62–12.03 | 1.28–21.60 | 0.27–10.79 | 0.78–16.69 | 0.27–21.60 | 1.92 | |
| CLCB | n | 18 | 20 | 17 | 19 | 19 | 93 | |
| GM (GSD) | 4.42 (1.90) | 4.56 (1.52) | 4.82 (2.03) | 4.01 (1.66) | 4.44 (1.82) | 4.49 (1.84) | ||
| Range | 1.20–17.78 | 1.86–11.43 | 0.32–21.62 | 0.87–11.97 | 0.28–18.33 | 0.28–21.62 | 1.20 | |