The legal regulations and cultural environment for smoking bans in hotels and motels in South Korea differ depending on the type of accommodation. The aim of this study was to assess the thirdhand smoke exposure for hotel and motel guests staying at accommodations who are expected to be relatively vulnerable to thirdhand smoke. Biomarkers for 28 participants were assessed before and after lodging at a hotel or motel for approximately 14 h. Hotel participants had statistically decreased urinary cotinine concentrations after their stay, whereas motel participants experienced increased concentrations. The concentration of nicotine-derived nitrosamine ketone in dust in hotels was lower than that in motels, and the higher dust nicotine-derived nitrosamine ketone concentration in motels had more effect on an increase in urinary cotinine concentration. Both hotels and motels legally allowed smoking in guest rooms. However, the study participants in hotels were less exposed to thirdhand smoke than those in motels.

韩国酒店和汽车旅馆禁烟的法律规定和文化环境因住宿类型而异。本研究的目的是评估入住预计相对容易受到三手烟影响的酒店和汽车旅馆客人的三手烟暴露情况。28 名参与者的生物标志物在旅馆或汽车旅馆住宿前后大约 14 小时进行了评估。酒店参与者在入住后尿可替宁浓度在统计学上有所降低，而汽车旅馆参与者的尿可替宁浓度升高。酒店粉尘中尼古丁亚硝胺酮浓度低于汽车旅馆，汽车旅馆中较高的粉尘尼古丁亚硝胺酮浓度对尿可替宁浓度升高的影响更大。酒店和汽车旅馆都合法地允许在客房内吸烟。然而，酒店的研究参与者比汽车旅馆的参与者更少接触三手烟。