What is the background lithium level due to landfill lithium casual waste disposal. There are millions of the little lithium button cells casually discarded, pl

What is the background lithium level due to landfill lithium casual waste disposal. There are millions of the little lithium button cells casually discarded, plus tools etc? Will this ever become a factor - or is it a trivial matter? I know some areas have natural lithium in ground water.