What is the primary function of the Clean Air Act?

The primary function of the Clean Air Act is to regulate air emissions to safeguard health and the environment. This landmark legislation was enacted to ensure that air quality meets the standards necessary to protect public health and welfare. It establishes a framework for the EPA to set national ambient air quality standards for pollutants that are harmful to human health and the environment.

The act focuses on controlling emissions from both stationary sources, such as factories, and mobile sources, including vehicles. By imposing regulations and allowing for monitoring and enforcement, the Clean Air Act aims to achieve cleaner air, which can significantly reduce health problems associated with air pollution, such as respiratory diseases, cardiovascular issues, and other serious health effects.

The other choices do not align with the main objectives of the Clean Air Act. While the law indirectly influences industrial practices by promoting cleaner technologies, its central purpose is public health and environmental protection rather than promoting industrial growth or enhancing fossil fuel production. Additionally, the act does not relate to restricting water use in agriculture; that aspect falls under different environmental regulations.