Heavy Metals
Metallic elements with high atomic weights; (e.g., mercury, chromium, cadmium, arsenic, and lead); can damage living things at low concentrations and tend to accumulate in the food chain.
Source: Terms of the Environment ...
Heavy metals
certain metals, used industrially and harmful to living organisms, for which discharge and emission standards are set; including cadmium, chromium, copper, lead, mercury, nickel, zinc ...
Heavy metals: Metals that have a density of 5.0 or higher and a high elemental weight. Most are toxic to humans, even in low concentrations.
Heavy water: Water in which all the hydrogen atoms have been replaced by deuterium.
Heavy Metals: Lead, Mercury, and Cadmium are toxic heavy metals that are naturally present in rocks and soils. Metal mining and smelting can result in additional human-made releases of mercury and cadmium.
Heavy Metals
Metallic elements with high atomic weights; (e.g., mercury, chromium, cadmium, arsenic, and lead); can damage living things at low concentrations and tend to accumulate in the food chain.
Helminth Worms ...
HEAVY METALS Elements, including cadmium, mercury, lead and arsenic which may be found in the waste stream as part of discarded items (batteries, lighting fixtures, colorants, ink).
Heavy Metals: those metals (elements with high density, malleability, and electrical and thermal conductivity) that have high specific gravity and high atomic mass, such as lead, cadmium, zinc, copper, silver, and mercury.
heavy metals
a general term given to the ions of metallic elements such as copper, zinc, chromium, and aluminum. They are removed from wastewater by forming an insoluble precipitate (usually a metallic hydroxide).
hertz (Hz) ...
Heavy metals
A group of elements (such as chromium, lead, copper and zinc) that can be toxic at relatively low concentrations and tend to accumulate in the food chain..
Heptachlor ...
heavy metals. Metallic elements with high atomic weights, e.g., mercury, chromium, cadmium, arsenic, and lead. They can damage living things at low concentrations and tend to accumulate in the food chain.
Heavy Metals: Metallic elements, some of which are required in trace concentrations for plant and/or animal nutrition, but which become toxic at higher concentrations (e.g. lead, mercury).
HEAVY METALS
Metals with high molecular weights that are generally toxic to animal life and human health if naturally occurring concentrations are exceeded. Examples include, arsenic, chromium, lead and mercury.
HEMIC PEAT ...
Heavy Metal
A common hazardous waste; can damage organisms at low concentrations and tends to accumulate in the food chain. ...
Mercury (Hg)- Heavy metal that can accumulate in the environment and is highly toxic if breathed or swallowed.
lead (Pb) A heavy metal that is hazardous to health if breathed or swallowed. Its use in gasoline, paints, and plumbing compounds has been sharply restricted or eliminated by federal laws and regulations. See heavy metals.
Health registry A record of people exposed to a specific substance (such as a heavy metal), or having a specific health condition (such as cancer or a communicable disease). New York State maintains several health registries.
Serpentine soil Soil formed by the weathering of serpentine rock which contains high concentrations of various heavy metals.
Mercury - Mercury is a toxic heavy metal released into the atmosphere, most significantly, ...
Many other pollutants, including sulfur dioxide, fluoride and heavy metals have been documented to suppress growth and photosynthesis in tree species.
The chemicals and heavy metals used in fireworks also take their toll on the environment, sometimes contributing to water supply contamination and even acid rain.
A naturally occurring heavy metal element produced by vaporization. Mercury can also be released into air, water and soils through human activities such as burning coal, mining and smelting. Medical equipment, such as old thermometers, use mercury.
Refers to the process whereby certain substances such as pesticides or heavy metals move up the food chain, work their way into rivers or lakes, and are eaten by aquatic organisms such as fish, which in turn are eaten by large birds, ...
Not all contaminants are easily treated through the use of bioremediation; for example, heavy metals such as cadmium and lead are not readily absorbed or captured by organisms.
Brine: Highly salty and heavily mineralized water containing heavy metal and organic contaminants.
Buffer: A substance that reacts with hydrogen or hydroxyl ions in a solution, in order to prevent a change in pH.
Batteries typically used in appliances such as power tools and mobile phones. Cadmium is a heavy metal that poses risk to human and eco-system health
Non-ferrous metals ...
Bioaccumulation
The buildup over time, within animal tissues, of substance (e.g. heavy metals) that cannot be excreted by an organism.
Removal of mud from the bottom of water bodies for deepening through the use of special mechanical devices. Dredging disturbs the ecosystem and can kill aquatic life. Dredging of contaminated muds can expose aquatic life to heavy metals and other ...
In particular, if there is the potential presence of heavy metals or arsenic in ash as a result of accumulation from soil or air, or from wood treatment, it must be checked before the ash is used in this way.
Burning destroys organics, reduces the volume of waste, and vaporizes water and other liquids the wastes may contain. The residue ash produced may contain some hazardous material, such as non-combustible heavy metals, ...
 See also: Environment, Toxic, Waste, Water, Air
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