In the United States, most cancers are due to industrial pollution and second-hand smoke.​

Industrial Pollution

Contamination of the environment, including air, water, and soil, caused by industrial activities.

Second-Hand Smoke

Smoke that is exhaled by smokers or emitted from the burning end of cigarettes, cigars, or pipes, posing health risks to non-smokers who inhale it.

Cancers

A group of diseases characterized by the uncontrolled growth and spread of abnormal cells in the body.