This technology significantly reduces the release of radium and its radioactive decay product
radon to the atmosphere, and as a result lowers the costs of handling and disposal of radioactive waste in oil and gas exploration.
One of the isotopes, neodymium-142, represents in part the radioactive decay product
of a form of the element sumarium, which was present only during Earth's earliest epochs.
It's indoor radon exposure that poses the greatest risk due to the increased likelihood of inhaling radioactive decay products
in a confined space.
There was heavy rain in the days after the explosion which washed radioactive decay products
- mostly caesium 137 - out of clouds and on to fields.
That estimate rests on measurements of two radioactive decay products
in the stalagmite.
Importantly, the storage drum was hermetically sealed between subsamplings for analysis of radioactive decay products
to prevent the release of gaseous radon.
Since this is already in the ground where its radioactive decay products
can cause problems (such as radon gas seepage), I fail to see what he means by "it's no good burying the stuff" unless he is suggesting that the disposal of nuclear waste is a matter of reburying previously dug up natural uranium.
These darkened spherical areas in minerals are due to damage induced by alpha particles from radioactive decay products
of uranium and thorium, most notably from polonium.
Cigarette smoking and radon's radioactive decay products
pose independent risks of lung cancer-and together, they form a potent synergistic duo.
By reheating the artifacts and measuring radioactive decay products
in the light emitted, researchers can estimate the time elapsed since heating last took place.
While most attention has focused on radon, it is the gas's radioactive decay products
, knwn as "daughters,' that pose the biggest health risk (SN: 1/18/86, p.43).
Levels of naturally occurring radon gas and its radioactive decay products
were exposing the worker's family to more than 50 times the annual radiation limit for uranium miners, according to the Nov.