Secondhand smoke: Ventilation systems are not the answer, says new study
Wednesday, September 8, 2010 - 15:49
in Psychology & Sociology
(PhysOrg.com) -- In a scientific study of secondhand smoke exposure in St. Louis bars and restaurants, researchers at Washington University in St. Louis found that ventilation systems and `voluntary` smoke-free policies do not protect employees and customers from exposure to nicotine in the air.
