Exposure to PM2.5 and E cigarette can potentially put you at greater risk of lung cancer . Both exposure to PM2.5 air pollution and e cigarette use are linked to an increased risk of Vaping, Smoking and Lung Cancer Risk E cigarettes: 'cancer risk close to zero' Bhekisisa Vaping, Environmental Toxicants Exposure, and Lung Cancer Risk E cigarettes induce toxicological effects that can raise the cancer risk Scientific Reports Misconceptions about e cigarette safety might be stopping smokers using them to quit