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:

Too many dental amalgam fillings may increase blood mercury levels | EVISA's News
ICHMET 2020: 20th International Conference on Heavy Metals in the Environment | EVISA's Agenda of Events
Instrument database: Retsch GmbH - Disc Mill DM 200
ICOBTE 2015: 13th International Conference on the Biogeochemistry of Trace Elements | EVISA's Agenda of Events
Too many dental amalgam fillings may increase mercury levels | EVISA's News
Fractionation as a first step towards speciation analysis | EVISA's News
Toxic mercury remnants of gold rush will seep into San Francisco area waterways for millennia | EVISA's News
Scientists reveal how organic mercury can interfere with vision | EVISA's News
Link database: Toxipedia: Thallium
Study links high levels of cadmium and lead in blood to pregnancy delay | EVISA's News
Directory of scientists: Kusal D. Das
Directory of scientists: Rafael Pardo
Link database: Dimethylmercury and Mercury Poisoning
Journals database: Journal of Heavy Metal Toxicity and Diseases
Is methyl mercury limiting the delight of seafood ? - To answer this question is a challenge for elemental speciation analysis | EVISA's News
Mercury Containing Preservative Alters Immune Function | EVISA's News
Dietary mercury exposure: Mercury isotopes can tell the source | EVISA's News
Instrument database: Beijing Rayleigh Analytical Instrument Corporation (BRAIC) - AF-610A Atomic Fluorescence Spectrophotometer
Link database: CBI: The Netherlands legislation: Packaging and packaging waste
Link database: GreenFacts: Scientific Facts on Mercury