Secondhand smoke may be a substantial contributor to lead levels found in children and adolescents, new study finds First, Second and Thirdhand Smoke: The Differences and Dangers Tobacco Stops With Me While vaping is not risk free, it is less harmful than tobacco Our World in Data Why Vaping is Dangerous, Especially for Children with Asthma The National Environmental Education Foundation (NEEF) Women who vape are more likely to have low birthweight babies, study shows UCLA