Table 1.

Summary of common metals and metalloids associated with waste from mines and an estimate of the number of Native Americans living within 10 km of each mine type

Hard rock metal mine type	Common metal contaminants of concern	Estimated count of Native Americans living <10 km from mine type
Gold	Arsenic, cadmium, cobalt, copper, mercury, nickel, lead, zinc [15, 16]	417,846 people
Uranium/vanadium	Arsenic, copper, molybdenum, nickel, selenium, uranium, vanadium [17, 18]	286,346 people
Copper	Arsenic, cadmium, copper, iron, nickel [19–21]	243,722 people
Lead	Arsenic, cadmium, chromium, manganese, lead, zinc [22–25]	116,925 people