Trace Elements & Heavy Metals (Ranges in Forager Bees from Pristine versus Polluted Areas of the Western U.S.)
Chemical	Low (ppm/dry weight)	High (ppm/dry weight)
Aluminum	39.6	100
Arsenic	0.1	18.5
Cadmium	0.1	6.9
Copper	19.1	61.3
Fluoride	4.3	405
Lead	4.2	298.7
Manganese	13.2	116.7
Nickel	0.3	483.7
Zinc	66.0	222.8