heavy-metal pollution
heavy-metal pollution Environmental pollution by metals with a high relative atomic mass, such as lead and mercury. These metals derive from a number of sources, including lead in petrol, industrial effluents, and leaching of metal ions from the soil into lakes and rivers by acid rain. They are easily incorporated into biological molecules and exert their toxic effects by displacing essential metals of a lower binding power in biologically active molecules or by acting as noncompetitive inhibitors of enzymes (see inhibition).
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Metals , Metals
Metals are rarely encountered in their elemental state in nature. They must first be extracted from the ground as an ore, which is then treate… Metallic , me·tal·lic / məˈtalik/ • adj. of, relating to, or resembling metal or metals: metallic alloys a curious metallic taste. ∎ (of sound) resembling that… Corrosion , Corrosion is the deterioration a material undergoes as a result of its interaction with its surroundings. Although this definition is applicable to a… Heavy Metals , Heavy metals is a common toxicological term covering a number of metallic substances that acutely damage human beings and ecosystems, and whose atomi… Cofactor , Enzymes are either proteins (polymers of amino acids) or ribozymes (polymers of ribonucleotides). Some protein-based enzymes require small molecules… Metallurgy , metallurgy (mĕt´əlûr´jē), science and technology of metals and their alloys. Modern metallurgical research is concerned with the preparation of radio…
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heavy-metal pollution