Radon Flashcards
radon vs radium
Radon= radioactive decay product from uranium and will decay into the lead (gas)
radium is the source (solid)
health concerns of radon exposure
known to cause lung cancer via striping electrons from human body tissue
what is the max amoutn of radon allowed in homes
200 Bq/m3
what is a becquerel
a measure of radioactive decay (decays of a nucleus per second)
what 3 minerals can produce radon, what rocks are they found in
Zircon
Uraninite
monazite
all found in ig, sed and meta rocks and they are very small
how can radon entre an home
cracks in foundations
window crakcs
ground water souces (drinking or tap)
sump pump connected to radon soil
why does SAB have high radon lvls
lots of Uranium and Thorium in bedrock and glacial sediments
high permeability of bed rock (and grain size)
amount of fracture in the bedrock
what is the 2 cause for lung caner
1= smoking
2=radon
how long is a radon tester left in the home?
91 days
how many homes in canada have lvls above the recommendation?
1/8
what perect of lung cancer is caused by radon exposure
16%
what kin dof rock os in SAB?
sedimentry rock -sand stone that is 50-55 mill years old
what is radon soil potential and what is it attributed to?
the concentration of radon in the soil and the relative permeability of the soil. This accounts for its ability to leak into homes.
it is the effective predictor of areas prone to high levels of radon.
