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 mercury levels | EVISA's News
Instrument database: GAT - Gamma Analysen- Technik GmbH - GAT TEA 4000 MP
Arsenic-absorbing fern may soak up toxic metal to repel hungry bugs, UF researchers say | EVISA's News
Too many dental amalgam fillings may increase blood mercury levels | EVISA's News
Dietary mercury exposure: Mercury isotopes can tell the source | EVISA's News
The effect of thermal treatment on the arsenic speciation in food | EVISA's News
Study links high levels of cadmium and lead in blood to pregnancy delay | EVISA's News
Link database: Mercury concentrations in the Canadian population, 2007 to 2009
Is methyl mercury limiting the delight of seafood ? - To answer this question is a challenge for elemental speciation analysis | EVISA's News
Instrument database: PANalytical B.V. - Axios-Poly
Scientists reveal how organic mercury can interfere with vision | EVISA's News
Link database: ChemgaPedia: Case Study - Heavy Metals (Mercury)
Cadmium Exposure Could Be Damaging Children’s Health more than Lead | EVISA's News
Link database: USGS: Statistics and Information: Thallium
Link database: CBI: The Netherlands legislation: Packaging and packaging waste
New method for the determination of hexavalent chromium in anti-corrosion coatings | EVISA's News
Directory of scientists: György Heltai
EMI 2013: EnvironMetal Isotopes: International Conference on „Stable Metal Isotope Fractionation – Processes and Applications in Environmental Geochemistry” | EVISA's Agenda of Events
Quantification of copper chlorophylls in green table olives | EVISA's News
EU proposes to ratify international Minamata Convention meant to protect citizens from mercury pollution | EVISA's News