msnbc.com staff and news service reports
updated 3/31/2011 2:04:33 PM ET 2011-03-31T18:04:33

Low levels of radiation have turned up in milk samples from two U.S. states, both on the West Coast. Officials say there is no public health threat.

  1. Don't miss these Health stories
    1. Splash News
      More women opting for preventive mastectomy - but should they be?

      Rates of women who are opting for preventive mastectomies, such as Angeline Jolie, have increased by an estimated 50 percent in recent years, experts say. But many doctors are puzzled because the operation doesn't carry a 100 percent guarantee, it's major surgery -- and women have other options, from a once-a-day pill to careful monitoring.

    2. Larry Page's damaged vocal cords: Treatment comes with trade-offs
    3. Report questioning salt guidelines riles heart experts
    4. CDC: 2012 was deadliest year for West Nile in US
    5. What stresses moms most? Themselves, survey says

Traces of radioactive Iodine-131 were found in milk in California and Washington state, according to federal and state authorities who are monitoring for contamination as the nuclear crisis unfolds in Japan.

The officials say the levels are still 5,000 times below worrisome levels.

The U.S. Environmental Protection Agency and the Food and Drug Administration said Wednesday that radiation was found in a March 25 milk sample from Spokane, Washington. The California Department of Public Health said on its website that a similar result was found March 28 at a dairy in San Luis Obispo County.

Japan's Fukushima Dai-ichi nuclear power complex began leaking radiation after it was damaged by a devastating earthquake and tsunami this month.

The EPA always monitors radiation levels in the air at several sites throughout the country, but the agency said this week that it is increasing the level of nationwide monitoring of milk, precipitation and drinking water in response to the situation in Japan. Those substances are normally monitored for radiation only a few times a year.

EPA spokesman Brendan Gilfillan said the radiation detected in Spokane is different from what is normally found there.

"While there can be naturally occurring levels of radiation in milk — as there are in the air, at levels far below levels of concern — we don't generally see this particular isotope as part of those background levels," Gilfillan said.

The EPA has found very low levels of radiation in the air connected to the Japanese incident in Alaska, Alabama, California, Hawaii, Idaho, Nevada, Saipan, Guam, Northern Mariana Islands and Washington state. Gilfillan said the low level of radiation most likely ended up in the milk after a cow ate grass or drank rainwater that contained it.

The California Department of Public Health has a continuing program that checks milk for radiation levels and occasionally tests vegetables grown near power plants, said Gary Butner, chief of the department's Radiologic Health Branch.

Officials at the state's two nuclear power plants regularly sample milk at nearby dairies and split the samples they get with state public health authorities to be analyzed at the agency's lab in Richmond, California, in the San Francisco Bay area, Butner said.

Spokesman Al Lundeen said Thursday the agency normally tests milk every three months at most of its sites, but recently started testing every week in San Luis Obispo County, where the Diablo Canyon nuclear power plant is.

"We have looked at milk pretty extensively in California and have been sampling near nuclear plants for a long time," Butner said. "We still don't think there will be any reason to believe we will see any serious exposure."

The FDA, which oversees the safety of the nation's food supply, said such findings were to be expected in the coming days because of problems with the nuclear plant in Japan, and the levels were expected to drop relatively quickly.

"Radiation is all around us in our daily lives and these findings are a minuscule amount compared to what people experience every day," said Patricia Hansen, senior scientist at the FDA. "A person would be exposed to low levels of radiation on a round-trip cross-country flight, watching television and even from construction materials."

The United States had already halted imports of dairy products and produce from the affected area of Japan. Other foods imported from Japan, including seafood, are still being sold to the public but are screened first for radiation.

Japanese foods make up less than 4 percent of all U.S. imports. The FDA has said it expected no risk to the U.S. food supply from radiation.

Copyright 2011 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

Discuss:

Discussion comments

,

Most active discussions

  1. votes comments
  2. votes comments
  3. votes comments
  4. votes comments