抄録
Concentrations of formaldehyde, acetaldehyde, acetone and acrolein were measured, in addition to dust concentrations, at smoking rooms, smoking corners of the stations and several other places where smoking was permitted. Dust concentration was 0.439 mg/m3, formaldehyde concentration 46.0 μg/m3 and acetaldehyde concentration 101.7 μg/m3 at smoking room A where a ventilation fan was in operation. Dust concentration was 0.288 mg/m3, formaldehyde concentration 71.6 μg/m3 and acetaldehyde concentration 121.7 μg/m3 at smoking room B where an air purifier was in operation. Ratios of formaldehyde, acetaldehyde, acetone and acrolein concentrations to SPM concentration at smoking room A were 0.10, 0.18, 0.10 and 0.013, respectively. Ratios at smoking room B higher than those at smoking room A because although the air purifier could remove dust, it could not completely remove formaldehyde and acetaldehyde.
