Larry Jaques wrote:



The nickel ore is smelted on site at Norilsk. The smelting is directly
responsible for severe pollution, generally acid rain and smog. By
some estimates, 1 percent of the entire global emissions of sulfur
dioxide comes from this one city. Heavy metal pollution near Norilsk
is so severe that mining the surface soil is now economically
feasible, as a result of acquiring high concentrations of platinum and
palladium through pollution.[11]

I would think then, that capturing it the point source (s) would be
even more feasible.

jk