Final answer:
Yes, under Section 107 of the Clean Air Act, air quality control regions can cover multiple states as they are based on pollution levels and factors that may transcend state boundaries.
Step-by-step explanation:
Under Section 107 of the Clean Air Act, air quality control regions may indeed span multiple states. These regions are established based on air pollution levels, sources, and meteorological conditions, which don't necessarily align with state boundaries. The purpose is to design and implement efficient strategies for achieving and maintaining the National Ambient Air Quality Standards (NAAQS).
The formation of interstate air quality control regions can be particularly useful in addressing pollution that affects a larger geographical area and moves across state lines. For instance, the Eastern United States often shares air quality challenges due to prevailing wind patterns, thus requiring a coordinated approach among states.
Furthermore, the Clean Air Act Amendments of 1990 have enhanced the Act's provisions, including measures to significantly reduce sulfur dioxide emissions. This multi-state approach fosters collaboration and ensures that states work together towards the common goal of cleaner air, which is crucial for both protecting public health and preserving the environment.