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:

Linking atmospheric mercury to methylmercury in fish | EVISA's News
Link database: GreenFacts: Scientific Facts on Mercury
Link database: Toxipedia: Thallium
Instrument database: Beijing Rayleigh Analytical Instrument Corporation (BRAIC) - AF-610A Atomic Fluorescence Spectrophotometer
Mercury Containing Preservative Alters Immune Function | EVISA's News
Herbal remedies may cause harm | EVISA's News
Is methyl mercury limiting the delight of seafood ? - To answer this question is a challenge for elemental speciation analysis | EVISA's News
Study links high levels of cadmium and lead in blood to pregnancy delay | EVISA's News
Link database: European Commission: Cadmium in Food
ICBTECE 2021: 15. International Conference on Biogeochemistry, Trace Elements and Chemical Engineering | EVISA's Agenda of Events
Uptake of mercury species by fruit flies | EVISA's News
ICHMET 2016: 18th International Conference on Heavy Metals in the Environment | EVISA's Agenda of Events
Cadmium Exposure Could Be Damaging Childrenís Health more than Lead | EVISA's News
Toxic mercury remnants of gold rush will seep into San Francisco area waterways for millennia | EVISA's News
Instrument database: Retsch GmbH - Disc Mill DM 200
ICHMET 2018: 19th International Conference on Heavy Metals in the Environment | EVISA's Agenda of Events
Link database: Mercury concentrations in the Canadian population, 2007 to 2009
FDA Approves Inorganic Arsenic Limits in Baby Rice Cereal | EVISA's News
New method for the determination of hexavalent chromium in anti-corrosion coatings | EVISA's News
EUís proposal to restrict Cr (VI) in leather in final stages | EVISA's News