Is emphysema caused by tar

Emphysema is primarily caused by the destruction of the alveoli in the lungs, often due to long-term exposure to irritants, with cigarette smoke being the most significant contributor. While tar, a sticky substance in tobacco smoke, does contain harmful chemicals that can damage lung tissue, it is the overall harmful effects of smoking and other pollutants that lead to emphysema. Other factors, such as genetic predisposition and environmental pollutants, can also play a role in the development of this condition.