About how many chemicals are in use or production in the US?

The approximately 100,000 chemicals currently in use or production in the United States reflect the extensive and diverse nature of the chemical industry. This number encompasses a vast array of substances, including those used in industrial applications, consumer products, agriculture, and pharmaceuticals. The complexity of modern industries and the continuous introduction of new chemicals contribute to this large figure.

Regulatory bodies, such as the Environmental Protection Agency (EPA), manage the safety and environmental impact of these chemicals. Despite the large number, only a fraction undergo rigorous testing and regulation, which makes it crucial for stakeholders—regulators, manufacturers, and consumers—to stay informed about the impacts these substances may have on health and the environment. The significant volume of chemicals also underscores the importance of effective monitoring and assessment protocols to ensure public safety and environmental protection.