How does something drift west all the way to Italy from Kazakhstan?
Most of that "something" was probably washed out (removed from the atmosphere by normal precipitation) long before it reached Italy.
What wasn't washed out was diluted by a factor of a thousand.
Did you know that the dust on your outdoor window sills contains particles of dust from the Sahara?
Of course, we're talking about concentrations measured in the ppm, ppb, and ppt here!
Such articles are fear-mongering unless they express the hazard in comparative terms.
Regards,