Smoking affects more than one organ. It can silently increase the risk of multiple cancers and long term health complications, often before symptoms even begin to appear. Tobacco use is directly linked to 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 How Switching to E Cigarettes After Smoking Cessation Affects Lung Cancer Risk Lung cancer risks persist with e cigarette use after quitting tobacco smoking