Several substances are recognized as carcinogens. Some well-known examples include:
Asbestos: A natural mineral fiber used in construction materials, known to cause lung cancer. Benzene: A chemical found in gasoline and tobacco smoke, linked to leukemia. Formaldehyde: Used in building materials and household products, associated with nasopharyngeal cancer. Aflatoxins: Naturally occurring toxins produced by certain molds, linked to liver cancer. Tobacco Smoke: Contains numerous carcinogens and is a major cause of lung cancer.
