heavy metals

"heavy metals" is also a: user

created by Ereneta
(thing) by Ereneta (13.4 hr) (print)   (I like it!) Wed Jun 21 2000 at 1:02:57
Metallic elements with high atomic weights usually cited as public health hazards because they accumulate in the food chain and are toxic, e.g. mercury, chromium, cadmium, arsenic, and lead.
(thing) by Impartial (1 y) (print)   (I like it!) Tue Sep 05 2000 at 9:54:54
To be slightly more precise, metallic elements with a specific gravity of at least 5.0. All heavy metals are toxic in high enough concentrations, but some (zinc and copper, for example) are micronutrients, essential to plant and animal life.
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