The rest of the smoke is released into the air and so is the exhaled smoke. According to James Repace, 'Second-hand smoke contains 43 chemicals that cause cancer'. Although the statistics vary depending on the variables included, there is no doubt that second-hand smoke is responsible for many deaths every year. The U.S Surgeon General, estimated that ETS accounts for 6800 deaths among Californians annually. Health Canada estimates that approximately 350 lung cancer and 2,000 heart disease deaths are due to second hand smoke, and approximately 100 children die each year as a result of maternal smoking and exposure to smoke in the home.
Tobacco smoke poses a real and immediate danger to health.
Cardiovascular Health Effects, Heath Effects of Exposure to Environmnental Tobacco Smoke . It can cause lung, bladder and liver cancer. Sometimes, these diseases are fatal sometimes they are not. But almost always, they are responsible for needless pain and suffering. Elderly people who live in smoky environments have worse emphysema and bronchitis, than those who live in smoke-free situations.