The stale smell of cigarette smoke moves many a traveler to request a smoke-free hotel room.  Who wants to smell someone else's bad habit?  But the lingering odor may be telling us something else — something more troubling.

Research funded by the UC-run Tobacco-Related Disease Research Program (TRDRP) shows that long after smoke has cleared from a room, toxic pollutants from cigarette smoke adhere to bedspreads, carpets, clothing — even furniture, walls, ventilation systems and hallways of hotels that allow smoking. Similar toxicants cling to surfaces in rental cars driven by smokers.

Complete story and video at UC Research.