Smoke is released from cigarettes which is the normal reason of smoking. It also affects the skin of body. It causes dark circles or black shadow on lips, and discoloration of teeth. Moreover if your person doesn't really covers his teeth it may ultimately cause full decay of teeth. Moreover it is now proved that living a proper life by not smoking is the greatest way of preventing diseases. Particulate air pollution is really a combination of solid and liquid particles which are suspended up which you breathe. It is best to classify air particles through the aerodynamic properties since these properties determine removing them through the air, and where they deposit in your the respiratory system.