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Nuclear lab threatened by wildfire

A wildfire burning near the desert birthplace of the atomic bomb has advanced on the Los Alamos laboratory and thousands of outdoor drums of plutonium-contaminated waste as authorities stepped up efforts to protect the site from flames and monitor the air for radiation.

Officials at the nation's premier nuclear weapons lab gave assurances that dangerous materials were safely stored and capable of withstanding flames from the 93-square-mile fire, which was as close as 50 feet from the grounds.

A small patch of land on the laboratory grounds caught fire before firefighters quickly put it out. Teams were on high alert to pounce on any new blazes and spent the day removing brush and low-hanging tree limbs from the lab's perimeter.

"We are throwing absolutely everything at this that we got," Democratic senator Tom Udall of New Mexico said in Los Alamos.

The fire has forced the evacuation of the entire city of Los Alamos, population 11,000, cast giant plumes of smoke over the region and raised fears among nuclear watchdogs that it will reach as many as 30,000 55-gallon drums of plutonium-contaminated waste.

"The concern is that these drums will get so hot that they'll burst. That would put this toxic material into the plume. It's a concern for everybody," said Joni Arends, executive director of the Concerned Citizens for Nuclear Safety, an anti-nuclear group.

Ms Arends' group also worried that the fire could stir up nuclear-contaminated soil on lab property where experiments were conducted years ago. Over the years, burrowing animals have brought that contamination to the surface, she said.

Lab officials said there was very little risk of the fire reaching the drums of low-level nuclear waste, since the flames would have to jump through canyons first. Officials also stood ready to coat the drums with fire-resistant foam if the blaze got too close.

Lab spokeswoman Lisa Rosendorf said the drums contain Cold War-era waste that the lab sends away in weekly shipments for storage. She said the drums were on a paved area with few trees nearby. As of midday, the flames were about two miles away from the material.

Los Alamos employs about 15,000 people, covers more than 36 square miles, includes about 2,000 buildings at nearly four dozen sites and plays a vital role in the nation's nuclear programme. The lab was created during the Second World War as part of the Manhattan Project to build the atomic bomb. It produced the weapons that were dropped on Hiroshima and Nagasaki.

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