Washington, D.C., July 7, 2011 — The U.S. Environmental Protection Agency finalized additional Clean Air Act protections that will slash hundreds of thousands of tons of smokestack emissions that travel long distances through the air leading to soot and smog, threatening the health of hundreds of millions of Americans living downwind.
Twenty seven states in the eastern half of the country will work with power plants to cut air pollution under the rule, which leverages widely available, proven and cost-effective control technologies.
EPA will work with states to help develop the most appropriate path forward to deliver reductions in harmful emissions while minimizing costs for utilities and consumers.
"No community should have to bear the burden of another community's polluters, or be powerless to prevent air pollution that leads to asthma, heart attacks and other harmful illnesses. These Clean Air Act safeguards will help protect the health of millions of Americans and save lives by preventing smog and soot pollution from traveling hundreds of miles and contaminating the air they breathe," said EPA Administrator Lisa P. Jackson.
"By maximizing flexibility and leveraging existing technology, the Cross-State Air Pollution Rule will help ensure that American families aren't suffering the consequences of pollution generated far from home, while allowing states to decide how best to decrease dangerous air pollution in the most cost effective way," Jackson said.
Carried long distances across the country by wind and weather, power plant emissions of sulfur dioxide and nitrogen oxide continually travel across state lines. As the pollution is transported, it reacts in the atmosphere and contributes to harmful levels of smog (ground-level ozone) and soot (fine particles), which are scientifically linked to widespread illnesses and premature deaths and prevent many cities and communities from enjoying healthy air quality.
The rule will improve air quality by cutting sulfur dioxide and nitrogen oxide emissions that contribute to pollution problems in other states. By 2014, the rule and other state and EPA actions will reduce sulfur dioxide emissions by 73 percent from 2005 levels. Nitrogen oxide emissions will drop by 54 percent.
Following the Clean Air Act's "Good Neighbor" mandate to limit interstate air pollution, the rule will help states that are struggling to protect air quality from pollution emitted outside their borders, and it uses an approach that can be applied in the future to help areas continue to meet and maintain air quality health standards.
The Cross-State Air Pollution Rule replaces and strengthens the 2005 Clean Air Interstate Rule (CAIR), which the U.S. Court of Appeals for the D.C. Circuit ordered EPA to revise in 2008. The court allowed CAIR to remain in place temporarily while EPA worked to finalize today's replacement rule.
The rule will protect over 240 million Americans living in the eastern half of the country, resulting in up to $280 billion in annual benefits. The benefits outweigh the $800 million projected to be spent annually on this rule in 2014 and the roughly $1.6 billion per year in capital investments already underway as a result of CAIR.
EPA expects pollution reductions to occur quickly without large expenditures by the power industry. Many power plants covered by the rule have already made investments in clean air technologies to reduce emissions.
The rule will level the playing field for power plants that are already controlling these emissions by requiring more facilities to do the same. In the states where investments in control technology are required, health and environmental benefits will be substantial.
The rule will also help improve visibility in state and national parks while better protecting sensitive ecosystems, including Appalachian streams, Adirondack lakes, estuaries, coastal waters and forests.
In a supplemental rulemaking based on further review and analysis of air quality information, EPA is also proposing to require sources in Iowa, Kansas, Michigan, Missouri, Oklahoma and Wisconsin to reduce nitrogen oxide emissions during the summertime ozone season.
The proposal would increase the total number of states covered by the rule from 27 to 28. Five of these six states are covered for other pollutants under the rule. The proposal is open for public review and comment for 45 days after publication in the Federal Register.