Florence restaurants that allow smoking may be putting their staffs in danger. That’s the point of a new air quality study. It says workers in smoke-free eateries are exposed to fewer harmful air particles than those working in smoking environments. The Florence Times Daily reports that the study says workers in smoking-allowed restaurants are exposed to a 66% higher rate than the opposite. It was released this week by the Partnership for a Tobacco-Free Shoals and Smoke-Free Shoals. The study was performed by Roswell Park Cancer Institute this year. The air in six smoke-free restaurants and six restaurants that allow smoking was tested.