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Safety

Spotlight On Nuclear Power

Review: U.S. nuclear plants need stronger safeguards for catastrophic events, panel says

by Glenn Hess
July 18, 2011 | APPEARED IN VOLUME 89, ISSUE 29

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Credit: Shutterstock
Nuclear power plants need to reevaluate their earthquake and flood risks, says a panel studying Japan’s reactor crisis.
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Credit: Shutterstock
Nuclear power plants need to reevaluate their earthquake and flood risks, says a panel studying Japan’s reactor crisis.

Tougher rules are needed to improve the safety of U.S. nuclear power facilities and to better protect the public from the type of disaster that occurred this spring at Japan’s Fukushima Daiichi nuclear energy plant, says a preliminary report released by the Nuclear Regulatory Commission (NRC) on July 12.

Nonetheless, the report recognizes that nuclear plants can be operated safely and declares that “a sequence of events like the Fukushima accident is unlikely to occur in the U.S.” However, it adds that a U.S. nuclear power “accident involving core damage and uncontrolled release of radioactivity to the environment, even one without significant health consequences, is inherently unacceptable.”

A “patchwork” of existing regulations developed over the decades should be replaced with a “logical, systematic, and coherent regulatory framework” to further bolster reactor safety in the U.S., according to the report, which was prepared by a task force of nuclear power experts. NRC ordered the panel’s 90-day review of the safety and level of emergency preparedness of the 104 U.S. nuclear reactors after Japan’s March 11 earthquake and tsunami triggered an ongoing nuclear crisis.

Plant operators in the U.S., the report continues, should reevaluate and upgrade, if necessary, protections against earthquakes and floods; secure backup power and instrumentation to monitor and cool spent-fuel pools after a natural disaster; and ensure that emergency plans address prolonged station blackouts and events involving multiple reactors at a single site.

Rep. Edward J. Markey of Massachusetts, the top Democrat on the House Natural Resources Committee and a longtime critic of the nuclear power industry, urged NRC to move quickly to adopt the task force’s recommendations. “America’s nuclear fleet remains vulnerable to a similar disaster,” he says.

But Sen. James M. Inhofe (R-Okla.), the Environment & Public Works Committee’s ranking member, cautions against sudden, sweeping regulatory revisions. “Changes in our system may be necessary,” he says, but “a nuclear accident in Japan should not automatically be viewed as an indictment of U.S. institutional structures and nuclear safety requirements.”

The short-term review will be followed by a more in-depth analysis by the task force. That report is due in January 2012.

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