ABC - DEF - GHI - JKL - MNO - PQRS - TUV - WXYZ Languages: Heavy metals
Definition:
Metallic elements with high atomic weights, e.g.
mercury, chromium, cadmium,
arsenic, and lead.
They can damage living things at low
concentrations and tend to
accumulate in the food chain.
Source:
US EPA
Drinking Water
Glossary 
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