Certain types of pollutants, like sulfur and nitrogen, not only have a tendency to drift down to levels where they can be destructive to lung tissue after being inhaled by humans, but also have the ability to travel across state lines. The EPA estimated that once put into practice, the new rule could prevent 19,000 hospital visits, 420,000 cases of respiratory symptoms, and nearly 2 million sick days taken from work or school by those affected. Potential total financial savings tally up to $280 billion in various health and environmental costs.
CSAPR will close a loophole in the Clean Air Act by requiring that power plants meet emissions goals, and it may necessitate that some of them switch to different types of coal that emit less sulfur, or adopt technologies that prevent the downwind emissions. More than 1,000 power plants will be forced to adhere to the new guidelines.