What is the term used for substances that can cause cancers in humans?

The term for substances that can cause cancer in humans is "carcinogens." These are agents that can trigger the process of carcinogenesis, which is the transformation of normal cells into cancerous cells. Carcinogens can be found in a variety of forms, including chemicals, environmental pollutants, radiation, and even certain viruses.

Understanding carcinogens is crucial in workplace safety and environmental health, as reducing exposure to these substances can significantly lower the risk of developing cancer. For example, certain chemicals used in manufacturing processes are classified as carcinogens, highlighting the importance of proper safety protocols and protective measures for workers.

The other terms listed have distinct meanings that do not relate to cancer causation. Allergens are substances that can provoke allergic reactions, toxins generally refer to harmful substances produced by living organisms, and pathogens are microorganisms that can cause disease but are not specifically linked to cancer.