No Threat From Japanese Radiation Spread Across U.S.

I have noticed that I see so many different views on this subject. Yet, It's still up in the air and nobody actually knows for sure what the harm is that can be done. I do know this much though. Chernobyl was an actual melt down and did destroy a lot with Radiation. I do like what they have to say about it here.
http://www.foxnews.com/us/2011/03/28/threat-japanese-radiation-spread

AP/TEPCO

In this photo released on March 16, 2011, by Tokyo Electric Power Co., the top part of the badly damaged No. 4 unit of the Fukushima Dai-ichi nuclear power plant, is shown.

WASHINGTON –  Traces of radioactive material from the endangered Japanese nuclear plant are being detected from coast to coast in the United States and in Iceland, but amounts continue to be far below levels that would cause health problems.

The development of super-sensitive equipment to detect radiation is both a blessing and a curse, allowing scientists to monitor materials released in nuclear accidents, but also causing unnecessary worry, said Kathryn Higley, director of the nuclear engineering and radiation health physics at Oregon State University.

Traces of radioactive cesium and iodine are being reported from Nevada to Vermont, South Carolina to Massachusetts, thanks to equipment that Higley says can detect material "many orders of magnitude below what would be hazardous."

The traces of radiation outside of Japan are "absolutely of no concern," added Ahmed Hassanein, head of nuclear engineering at the Purdue School of Nuclear Engineering.

Curiously, one spot where extremely small amounts of the radioactive isotopes were detected was Las Vegas' Atomic Testing Museum, about 65 miles from the desert site where the United States tested atomic bombs in the 1950s.

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Ted Hartwell, manager of environmental monitoring at the Desert Research Institute, said he's certain the isotopes came from Japan because they're not usually detected in Nevada. But he said the readings were far below levels that could pose any health risks.

Gerhard Wotawa of Austria's Central Institute for Meteorology and Geodynamics, said the amounts of radiation detected so far were a fraction of what people are normally exposed to, adding that doctors, pilots and others are often confronted with much higher concentrations.

He also said that several types of material flung into the air at the Chernobyl plant 25 years ago are not turning up in the aftermath of the Fukushima accident because there has been no explosion to propel these heavier elements in the atmosphere.

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