Smoking has long been known as a major cause of lung cancer, but now, even vapes and e cigarettes are contributing to the risk. This World Lung Day, let's raise awareness and make Researchers now warn that nicotine based e cigarettes are likely carcinogenic, meaning they have the potential to cause cancer, specifically in the lungs and mouth. Learn more in our weekly news roundup. https: t.co i4xGiCxD0t E cigarette vapor linked to cancer in mice National Institutes of Health (NIH) 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 E cigarette use linked to lower use of lung cancer screening