Zr does produce gamma radiation, but of a very low energy, and zirconium is relatively inert in the environment.
Below this is the subsoil which is relatively inert.
What sorts of people tend to become politically active and who tend to remain relatively inert?
For these reasons, social and health conditions remained relatively inert since emancipation.
The growing fullerenes eventually become buckminsterfullerene which, being the most stable structure in its size region, should be relatively inert to further radical attack.
Water has a high heat of vaporization and is relatively inert, which makes it a good fire extinguishing fluid.
Yet the great bulk of visual news was and remains pretty tame, relatively inert and unthreatening.
This complex is relatively inert and the equilibrium is attained only slowly at room temperature.
However, the relatively inert gold remains behind, unaffected.
Chemically active phase 1 products are rendered relatively inert and suitable for elimination by this step.