In what way does the Clean Air Act set standards for air quality in regard to human health?

The Clean Air Act establishes national air quality standards to protect public health by regulating pollutants that can harm human health, such as sulfur dioxide, carbon monoxide, and particulate matter. The Act mandates the Environmental Protection Agency (EPA) to set and enforce these standards, ensuring they are based on scientific evidence regarding the health effects of air pollution. Additionally, the Act requires states to develop plans to achieve and maintain these standards, promoting cleaner air for all citizens.