There have been no releases of radiation harmful to the public from this cask storage, or contamination, the NRC says.
It was "very unlikely" that harmful radiation levels from the damaged Japanese reactors would reach U.S. shores, Mr. Jaczko said during a White House briefing.
Earth's magnetic field helps to deflect much of that harmful radiation.
U.S. officials also sought to reassure the public that American nuclear facilities are safe and played down the likelihood of harmful radiation reaching the U.S. from Japan.
And if that didn't make the parents angry enough, there was the concern that the children, by sitting so close to the TV sets as they drew, could be exposing themselves to harmful radiation.
While dangerous levels of radiation are leaking from the crippled nuclear plant, the likelihood of harmful levels of radiation making it to the United States remains very low.
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The company will further investigate the possible spread of contamination and its potential impact in the ocean, including the existence of beta radiation that could contain harmful strontium, company spokesman Yoshikazu Nagai said.
It was also a big week for lighting news as we learned that compact fluorescent light bulbs emit potentially harmful UV radiation -- another good reason to make the switch to LEDs.
Station managers would not wish to push it much higher because that would take it closer to known debris fields and more of the space radiation that can be harmful to the health of astronauts.
When it is ground into nanoparticles it can still block harmful ultraviolet radiation, but it allows visible light to pass straight though, which means modern sunscreens can appear completely transparent, while offering the same protection as the old white stuff.
Let me repeat that: We do not expect harmful levels of radiation to reach the West Coast, Hawaii, Alaska, or U.S. territories in the Pacific.
Whether radiation in produce is or is not harmful, what's certain is malnutrition is common, which often can result in illnesses and birth defects.
Moreover iron, which gives the planet its characteristic hue, would naturally cling to the varnish, protecting interior organisms from the harmful effects of intense ultraviolet radiation from the sun.
Radiation levels there are still normal and not harmful to human health, a ministry spokeswoman said.
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According to LNT, any and all radiation doses, even background and below, are harmful and linear with dose.
"Instead of putting them through radiation, PET scans and CT scans, which are very expensive and potentially harmful, we are now looking at noninvasive tests that do the same job, " Topol said.
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