Key Legislation of the Environmental Movement

The environmental movement in the United States gained momentum during the 1960s and 1970s, leading to significant legislative changes aimed at protecting natural resources and public health. Key events such as the first Earth Day in 1970 and the establishment of the Environmental Protection Agency in the same year reflected this shift in public consciousness. Some of the landmark legislation from this era included the Clean Air Act and the Clean Water Act. To understand the impact of these developments, consider the following question:

Which legislative act, passed in 1970, was primarily responsible for the establishment of national air quality standards that aimed to reduce air pollution in the United States?