heavy metal

A very imprecise term, never defined by any authoritive body, used loosely to refer to both the element and its compounds. It is based on categorization by density, which is rarely a biologically significant property. It is often used as a group name for metals and metalloids that have been associated with contamination and potential toxicity or ecotoxicity. However, the assumption that all so-called "heavy metals" and their compounds have highly toxic or ecotoxic properties is not supported by facts. Even further, the list of "heavy metals" is not clearly defined and has no basis in their chemistry. Even the term "metal" is commonly misused in both toxicological literature and in legislation to mean the pure metal and all the chemical species in which it may exist.

Very often, ther term "heavy metals" is used, based on one of the following "definitions":

The use of the term "heavy metals"  is highly discorouged  by IUPAC.




The term "heavy metal" was found in the following pages:

Mercury Containing Preservative Alters Immune Function | EVISA's News
Scientists reveal how organic mercury can interfere with vision | EVISA's News
FDA Approves Inorganic Arsenic Limits in Baby Rice Cereal | EVISA's News
Link database: Blacksmith Institute: Industrial Estates - Lead Pollution
FDA identifies no harmful effects to date with brain retention of gadolinium-based contrast agents for MRIs | EVISA's News
Link database: CBI: The Netherlands legislation: Packaging and packaging waste
Instrument database: Beijing Rayleigh Analytical Instrument Corporation (BRAIC) - AF-610A Atomic Fluorescence Spectrophotometer
Link database: eMedicine: Toxicity, Heavy Metals
New method for the determination of hexavalent chromium in anti-corrosion coatings | EVISA's News
Study links high levels of cadmium and lead in blood to pregnancy delay | EVISA's News
ICHMET 2018: 19th International Conference on Heavy Metals in the Environment | EVISA's Agenda of Events
Instrument database: Büchi Labortechnik AG - Digestion Units K-424/K-435
ICOBTE 2015: 13th International Conference on the Biogeochemistry of Trace Elements | EVISA's Agenda of Events
ICHMET 2016: 18th International Conference on Heavy Metals in the Environment | EVISA's Agenda of Events
Instrument database: GAT - Gamma Analysen- Technik GmbH - GAT TEA 4000 MP
Cadmium in chocolate: New EU regulation enter into force 1 January 2019 | EVISA's News
ICHMET 2020: 20th International Conference on Heavy Metals in the Environment | EVISA's Agenda of Events
Link database: ChemgaPedia: Case Study - Heavy Metals (Mercury)
Link database: Heavy metals deposition and accumulation
TraceSpec 2016: 15th Workshop on Progress in Trace Metal Speciation for Environmental Analytical Chemistry | EVISA's Agenda of Events