heavy metal

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heavy metal

a metal with a high specific gravity
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Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

heavy metal

[′hev·ē ′med·əl]
(metallurgy)
A metal whose specific gravity is approximately 5.0 or higher.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

heavy metal

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References in periodicals archive ?
Deja, "C-S-H, C-A-S-H and N-A-S-H phases as a matrices for the immobilization of heavy metals," in Proceedings of 14th International Congress on the Chemistry of Cement, Beijing, China, October 2015.
Finally, the digestate was filtered and the filtrate collected for analysis of heavy metals in the Atomic Absorption Spectrophotometer (AAS, Perkin Elmer 2380).
Heavy metal testing report helps identify uncertainties that may arise from changes in business activity or the marketing of a new product.
"Our latest tests found that some fruit juices have elevated levels of heavy metals that could pose health risks, especially to children," said James Dickerson, PhD, CR's chief scientific officer.
The objective of the present study was to determine DNA alterations induced by heavy metals (Cd, Cu and Pb) in leaves and roots of pea seedlings via RAPD assay and to compare GTS values with population parameters such as germination, shoot and primary root length.
Heavy metals can enter the body through various routes such as ingestion of food, drinking water, and air (Pandey and Madhuri, 2014).
As mentioned above, the main transporters of heavy metals include industrial effluents, stormwater, domestic wastewater, and the atmosphere where heavy metals are released mostly as a result of anthropogenic activity.
The HQ and HI values observed in this estimation were less than one, suggesting that the exposure of these heavy metals through the consumption of Baladi chicken is unlikely to produce potential health risks to the population of the tested region.
The presence of heavy metals and other chemical compounds in a concentration greater than their natural or normal conditions cause pollution which in turn effect human health and other ecological resources and processes and of the ecosystem (Duruibe et al., 2007).