Final answer:
The Toxic Substances Control Act primarily regulates industrial chemicals, ensuring the management of potentially toxic substances that may lead to chemical pollution.
Step-by-step explanation:
The Toxic Substances Control Act regulates industrial chemicals. This includes a variety of substances such as hazardous chemicals, persistent organic pollutants like DDT (a pesticide), dioxins, and PCBs (used as liquid insulators in electric transformers), as well as heavy metals like lead and mercury, which can accumulate in the environment and food chain. The aim of this act, as well as other regulatory measures, is to control the use of potentially toxic substances that could lead to chemical pollution of foods and the broader environment.