Not sure this is useful, but that study does not bear directly on the question of using bud from a CS treated plant. As far as I can tell from a quick scan, it just confirms that if you are exposed to industrial sources of silver inhalation, the stuff enters the body and can be found distributed fairly widely in the body, possibly at harmful levels.
The question remains, how much silver is in bud from a treated plant (especially one in which only an unused portion of the plant was treated), what chemical form is it in, is that chemical form is released to the consumer during vaping/smoking and if so at what dosage, and is the confirmed dosage caused by using this bud high enough to do harm?
I am not advocating using CS bud, and have no need to try it or interest in doing it , but I am unaware of information to properly clarify the real risk. It may be significant, or not.