Days n | DCP exposure (mg/m3) | p Value | |||||
---|---|---|---|---|---|---|---|
GM | Range | ||||||
Antidrip system: | |||||||
None | 7 | 2.0 | 0.5–8.3 | 0.40 | |||
Antidrip nozzles | 21 | 2.3 | 0.2–11.1 | ||||
Compressed air | 8 | 2.2 | 1.0–5.0 | ||||
Both | 1 | 11.1 | 11.1 | ||||
Natural ventilation of cabin: | |||||||
Windows or doors opened | 18 | 2.6 | 0.2–11.1 | 0.56 | |||
Windows and doors closed | 19 | 2.1 | 0.3–8.3 |