A classification of elements, many of which are necessary for animal nutrition in trace quantities but which are also toxic to plants and animals in low concentrations.
Metals of high density which are often toxic to human health
Those metals that have high density; commonly includes copper, iron, manganese, molybdenum, cobalt, zinc, cadmium, mercury, nickel and lead.
A general term for those metals which are toxic when present in elevated concentrations. They include zinc, copper, lead, nickel and mercury, all of which are commonly used in industry.
Metals which tend to accumulate in the food chain and can harm living things at very low concentrations. eg chromium, cadmium, mercury and lead.
Dense chemical elements such as cadmium, chromium, copper, iron, lead, manganese, mercury, nickel and zinc. They can be toxic when highly concentrated.
Metals that can be precipitated by hydrogen sulfide in acid solution, such as lead, silver, gold, mercury, bismuth, and copper.
Metals that are dense. Examples include mercury, lead, silver, gold and uranium.
a group of metals (elements), usually toxic to humans and the environment. Included are: lead, zinc, mercury, cadmium, chromium, arsenic, manganese, selenium and barium.
The term heavy metal refers to any metallic chemical element that has a relatively high density and is toxic, highly toxic or poisonous at low concentrations. Examples of heavy metals include mercury [Hg], cadmium [Cd], arsenic [As], chromium [Cr], thallium [Tl], and lead [Pb].
Those metals which have densities greater than five.
Metallic elements with high atomic weights that tend to be toxic and bioaccumulate. Examples are mercury, arsenic, lead, etc.
Metals with high density, such as cadmium, lead, copper, mercury and chrome. In everyday language, heavy metals are the metals which are toxic and have a very negative effect on the environment. See each of the heavy metals for more information.
A group of metals that might be present in municipal and industrial wastes that pose long-term environmental hazards if not disposed of properly. Heavy metals can contaminate ground and surface waters, fish, and food. The metals of greatest concern are arsenic, cadmium, chromium, copper, lead, mercury, selenium, and zinc.
Materials classed as heavy metals are commonly regulated by local sewer codes. They are defined as metals with a specific gravity greater than 5.0. This includes metals such as cadmium, chromium, cobalt, copper, gold, iron, lead, manganese, mercury, molybdenum, nickel, silver, and zinc.
Arsenic, Barium, Cadmium, Chromium, Lead, Mercury, Selenium & Silver; considered hazardous at low concentration & tend to accumulate in the food chain
metals such as lead, chromium, copper, and cobalt that can be toxic at relatively low concentrations
metals that can be precipitated by hydrogen sulfide in acid solution, including lead, silver, gold, mercury, bismuth, and copper. Heavy metals are considered harmful to humans when ingested.
High molecular weight metal ions, such as lead. Known for their interference with many processes, and "poisoning" of catalysts, membranes, and resins.
A high content of metallic minerals that contaminates soil, water or air and can affect normal growth in plants and animals.
Metals with high molecular weights that are of concern because they are generally toxic to animal life and human health if naturally occurring concentrations are exceeded. Examples include, arsenic, chromium, lead and mercury.
Dense metals. Examples include mercury, lead, silver, gold and uranium.
Hazardous elements, including mercury and lead, which may be found in the waste stream as part of discarded items such as batteries and lighting
Any of the high atomic weight metals, such as lead, mercury, cadmium, and zinc. All may be serious pollutants in water or soil because they are toxic in relatively low concentrations and they tend to bioaccumulate.
a term used to describe the presence of metallic elements such as iron, copper, manganese, etc. Responsible for many types of problems involving staining and colored pool or spa water. Click here for some ordering information about Heavy Metals Test Kits.
Generic term referring to lead, cadmium, mercury and some other elements that generally are relatively toxic in nature. to top
Metallic elements with high molecular weights. Some elements present human health risks at certain concentrations; some may be phytotoxic to plants, and others may adversely affect livestock. While high concentrations can be harmful, low concentrations of some heavy metals such as copper and zinc are essential trace (or micro-nutrient) elements for life processes.
A class of metals that, in chemical terms, have a density at least five times that of water. They are widely used in industry. A few examples of heavy metals that are toxic and have contaminated some dietary supplements are lead, arsenic, and mercury.
metallic elements such as cadmium, lead, mercury, nickel, arsenic, and selenium, and their compounds.
are a group of metals with relatively high atomic weights. Some, like zinc and iron are required by humans in very small amounts. Others like lead, mercury, chromium and cadmium are generally toxic to plant animal life in low concentration. Two non -metals, arsenic and selenium are referred to as heavy metals. Aluminum is not heavy metal but it is toxic to plants.
Metals that have a density of 5.0 or higher and a high elemental weight. Most are toxic to humans, even in low concentrations.
High specific-gravity elements, such as arsenic, barium, cadmium, chromium (+6), lead, mercury, nickel, selenium, and silver, used in coatings, paints, lacquers in packaging applications, children's toys, furniture, and other industrial uses. The EPA and other environmental groups are evaluating these metals for potential toxic effects in humans.
Metals with a high atomic weight, such as arsenic, cadmium, chromium, cobalt mercury, lead, uranium and zinc. Heavy metals can be toxic for plants and animals at relatively low concentrations, and tend to accumulate in living tissues.
Metallic elements with relatively high atomic weights such as lead, cadmium, arsenic and mercury. Generally toxic in relatively low concentrations to plant and animal life.
Metallic elements that have a higher atomic weight than other metals and may possess properties that are hazardous in the environment .
A group of highly toxic metals that are generally harmful to plants and animals.
Metals such as lead, mercury, and arsenic that can be toxic in certain concentrations.
metals of high atomic weight and density, such as mercury, lead, and cadmium, that are toxic to living organisms.
Metallic elements of high molecular weight, such as mercury, chromium, cadmium, lead, and arsenic, that are toxic to plants and animals at known concentrations.
The group of elements including lead, cadmium, chromium, manganese and arsenic among others. Can cause heavy metal poisoning if ingested.
generally defined as those elements occurring in the middle to bottom sections of the Periodic Table and exhibit densities that are high compared to those of other common materials. Includes cadmium, chromium, copper, lead, mercury, nickel and zinc. Various heavy metals are required in trace amounts by organisms (hence also the common term trace metals), but can cause damage when ingested in larger quantities, such as binding with enzymes and thus impairing their functions.
A metallic element with a relatively high atomic weight (5.0 specific gravity), i.e. cadmium, lead, mercury.
Metallic elements such as mercury, chromium, cadmium, arsenic and lead with high atomic weights which can damage living things at low concentrations and tend to accumulate in the food chain.
Metallic elements with high atomic weights such as mercury, chromium, cadmium, arsenic, and lead. They can damage living organisms at low concentrations.
Metals, such as lead, mercury and zinc, having a density of more than five times that of water.
A group that includes all metallic elements with atomic numbers greater than 20, the most familiar of which are chromium, manganese, iron, cobalt, nickel, copper and zinc, but that also includes arsenic, selenium, sliver, cadmium, tin, antimony, mercury, and lead, among others.
Naturally occurring metal elements including cadmium, chromium, lead, mercury, arsenic, nickel, etc. Can also be found in sewage sludge and urban runoff. Many are toxic at low concentrations and tend to accumulate in the food chain.
Elements with high molecular weights which are generally toxic in low concentrations to plant and animal life. Examples include mercury, chromium, cadmium, arsenic, and lead.
Metals known to be hazardous to living organisms ingesting them in sufficient quantities; generally, cadmium, nickel, lead, zinc, copper, mercury, and chromium.
General term for cadmium, chromium, copper, iron, mercury, nickel, manganese, lead, zinc, arsenic and selenium.
A group of elements that is present in the environment from natural and anthropogenic sources and can produce toxic effects. This group includes mercury, copper, cadmium, zinc, and arsenic.
Heavy metals, such as lead, copper, iron, and zinc, are naturally found in trace amounts in the earth's crust. However, heavy metals are used extensively in manufacturing and industry (see pesticides), and prolonged exposure can cause deadly health effects. DDT, dioxins and polychlorinated biphenyls (PCBs) are examples of dangerous heavy metals.
Metallic elements like mercury, chromium, cadmium, arsenic, and lead, with high molecular weights. They can damage living things at low concentrations and tend to accumulate in the food chain.
Metallic elements, including those required for plant and animal nutrition, in trace concentration but which become toxic at higher concentrations. Examples are mercury, chromium, cadmium, and lead.
Metals with high atomic weights, such as mercury, chromium, cadmium, arsenic, and lead. They can damage living things at low concentrations and tend to accumulate in the food chain.
metallic elements like mercury, arsenic, and lead - generally toxic in low concentrations to plants and animals.
Metals with densities of 5 mg per meter or greater and include Cd, Co, Cr, Cu, Fe, Hg, Mn, Mo, Pb, and Zn.
Metallic chemicals like cadmium, arsenic, copper and zinc that can be harmful pollutants when they enter soil and water. These chemicals are put into animal feed to help make animals grow faster. Heavy metals are present in human and animal waste and can enter the environment if waste is released without being treated. Animal waste is never treated to remove heavy metals. Once in the environment, heavy metals are almost impossible to get rid of because they do not decompose.
Toxic metals that accumulate in the tissues of animals: e.g., lead, cadmium, mercury.
Metals having a high density or specific gravity. A generic term used to classify contaminants such as cadmium, lead and mercury. These contaminants can damage living things even at low concentrations and tend to accumulate in the food chain.
Heavy metals are naturally occurring elements found in rocks and soils. They are also released to the environment by human activities. They generally do not change into other forms and therefore persist in the environment. Examples of heavy metals are mercury, cadmium and lead.
Please see arsenic, cadmium, lead, manganese and mercury.
Metallic elements with high atomic weights, such as, mercury chromium cadmium, arsenic, and lead. Even at low levels these metals can damage living things. They do not break down or decompose and tend to build up in plants, animals, and people causing health concerns.
Toxic metals such as lead, barium, chromium, cadmium, copper, and mercury.
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).
any metal with a specific gravity of 5.0 or greater; especially one that is toxic to organisms; as lead, mercury, copper, chromium, cadmium, etc.
Heavy metals are found in used motor oil. Examples include barium, lead, and cadmium. These substances are considered carcinogenic.
Group of metals, including mercury, zinc, copper, cadmium, vanadium and lead. Harmful if spread in the environment. Nitrogen. An excess of nitrogen compounds in surface water gives rise to eutrophication and algal bloom.
These metal elements can harm fish at low concentrations; therefore, neutralize your tap or well water.
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).
Dense metals of high relative atomic mass such as lead, cadmium and mercury. Heavy metals can accumulate in the tissues and are toxic beyond certain levels, which vary from person to person.
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
BASF reports on emissions of heavy metals to air and water in accordance with the recommendations of the European Chemical Industry Council (CEFIC). Reporting covers the following heavy metals: For air: arsenic, cadmium, cobalt, chromium, mercury, nickel, lead, zinc. For water: arsenic, cadmium, chromium, copper, lead, mercury, nickel, zinc.
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.
Toxic chemicals found in some pigments including lead, chromium, cadmium. Hertz (Hz.) A measure of frequency equal to cycles per second.
Trace elements regulated because of their potential for human, plant, or animal toxicity, including cadmium (Cd), copper (Cu), chromium (Cr), mercury (Hg), nickel (Ni), lead (Pb) and Zinc (Zn).
A heavy metal is any of a number of higher atomic weight elements, which has the properties of a metallic substance at room temperature.