International Waters learning Exchange & Resource Network

Heavy Metals

Metals are naturally occurring elements. They are found in elemental form and in a variety of other chemical compounds. Each form or compound has different properties, which affect how the metal is transported, what happens to it in the food web, and how toxic it is. Some metals are vital nutrients in low concentrations.

807: Persistent Toxic Substances, Food Security, and Indigenous Peoples of the Russian North

11 aug. 2014


Heavy Metals.pdf