Agent Orange A toxic herbicide and defoliant used in the Vietnam conflict, containing 2,4,5-trichlorophen-oxyacetic acid (2,4,5-T) and 2-4 dichlorophenoxyacetic acid (2,4-D) with trace amounts of dioxin. Source: Terms of the Environment ...
Infectious Agent: Any organism, such as a virus or bacterium, that is pathogenic and capable of being communicated by invasion and multiplication in body tissues.
Agent Any physical, chemical, or biological entity that can be harmful to an organism (synonymous with stressor). Agent Orange ...
AGENT ORANGE AND WEED KILLERS (Environmental Article #134) DO YOU LOVE THE SMELL OF AGENT ORANGE IN THE MORNING? Agent Orange and Lawn Weed Killers - What's the Connection?
agent A biological, physical, or chemical entity capable of causing disease. agger Same as double tide. agglomerate An ice cover of floe formed by the freezing together of various forms of ice. ...
reagent (re-A-gent). A pure chemical substance that is used to make new products or is used in chemical tests to measure, detect, or examine other substances.
Toxic agent Chemical or physical (for example, radiation, heat, cold, microwaves) agents that, under certain circumstances of exposure, can cause harmful effects to living organisms.
Agent that induces a change in a chromosome or gene that leads to the induction of tumors after a second agent, called a promoter, is administered to the tissue. Substance that starts a chain reaction ...
An agent capable of killing germs, usually pathogenic microorganisms. gilgai ...
An agent that causes a permanent genetic change in a cell other than that which occurs during normal growth. Mutagenicity is the capacity of a chemical or physical agent to cause such permanent changes.
Evropská agentura pro životní prostÅ™edí Danish: Det Europæiske Miljøagentur;EEA; Miljøagenturet ...
Infectious Agent- Any organism, such as a pathogenic virus, parasite, or or bacterium, that is capable of invading body tissues, multiplying, and causing disease.
Chemical Agent (CA) A chemical compound (to include experimental compounds) that, through its chemical properties produces lethal or other damaging effects on human beings, is intended for use in miIitary operations to kill, seriously injure, ...
Chelating agents: Organic compounds that have the ability to draw ion from their water solutions into soluble complexes.
Oxidising Agent is a chemical which gives up oxygen in a chemical reaction. It can also mean to take hydrogen from a substance. Oxidising agents in the air include ozone and nitrogen dioxide.
Ozone is a reagent in many organic reactions in the laboratory and in industry. Ozonolysis is the cleavage of an alkene to carbonyl compounds. Use in medicine ...
Alkylating agent-Substance which introduces an alkyl substituent into a compound (IUPAC) ...
Stock Cultures/Agents: Cultures and stocks of agents infectious to humans and associated biologicals (e.g.
Sporicide: An agent that has the ability to control or destroy the spores that germinate into bacteria or fungi, when used according to label directions. See “disinfectant' ...
Antimicrobial: Agent that kills microbial growth. See "disinfectant," "sanitizer," and "sterilizer." Asbestos: A naturally-occurring mineral fiber that can cause cancer.
to communicate to product manufacturers that they prefer environmentally sound products packaged with the least amount of waste, made from recycled or recyclable materials, and containing no hazardous substances Detergent Synthetic washing agent ...
Erosion - the wearing away of the land surface by wind, water, ice, or other geologic agents. Fallow - summer cr opland left idle in order to restore productivity through accumulation of moisture. Summer fallow is ...
Passive dispersal Movement of seeds, spores or dispersive stages of animals caused by external agents such as wind current.
We discovered that you could break them down by cooking them in pressure vessel with molten sodium, a rather dramatic reagent. peak oil to come pesticide A chemical used to kill species that eat human crops.
In addition, it is used as a blowing and cleaning agent of metal, as a solvent in the production of polycarbonate resins, and in film processing, as well as many other industrial applications.
Threshold Limit Value or TLV The limit of concentration of an airborne agent to which humans can be exposed to without harmful effects. Top Kill In oil spill remediation, top kill is a temporary method of sealing a leaking oil well.
A set of agents that share the same ontology will be able to communicate about a domain of discourse without necessarily operating on a globally shared theory.
Soil organic matter compounds serve as binding agents, which aggregate smaller soil particle into larger, more stable units. Therefore, soil organic matter is said to improve soil structure.
Preparation Blank (reagent blank, method blank): An analytical control that contains distilled/deionized water and reagents, which is carried through the entire analytical procedure (digested and analyzed).
Cultures and Stocks: Infectious agents and associated biologicals including cultures from medical and pathological laboratories; cultures and stocks of infectious agents from research and industrial laboratories; ...
Mutagen/mutagenicity An agent that causes a permanent genetic change in a cell other than that which occurs during normal genetic recombination. Mutagenicity is the capacity of a chemical or physical agent to cause such permanent alteration.(1) ...
pesticides - chemical agents used to destroy pests. plastics - durable and flexible synthetic-based products, some of which are difficult to recycle and pose problems with toxic properties, especially PVC plastic.
PCBs Cancer-causing agent, affects reproduction and immune system, neurotoxilogical effects, toxic to liver in animal studies Extremely high amounts in a poisoning incident in Japan affected infant birth weight and development.
Certified or Certification - A process by which an independent agent verifies that the claims made by a product, service, etc. are valid.
Pathogen: A disease-causing agent. Peptide: Fragment of a protein comprised of two or more amino acids. Phase I: Clinical trial that examines a new drug candidate’s safety profile and may involve 10-60 healthy volunteers.
Detergent -Synthetic washing agent that helps to remove dirt and oil. Some contain compounds which kill useful bacteria and encourage algae growth when they are in wastewater that reaches receiving waters.
Pathogen: disease-causing biological agent such as a bacterium, virus, or fungus. Percolation: movement of water through soil or rock. Permeability: capacity of soil, sediment, or porous rock to transmit water.
Rodenticide A pesticide or other agent used to kill rats and other rodents or to prevent them from damaging food, crops, or forage. To A-I index To S-Z index ...
RECA = Renewable Energy Certificate Agent (NSW State Government) recycled water = Treated water that is used/reused more than once recycling = Process of sorting materials, taking unuseful waste and turning it into a product ...
The glossary includes some of the vocabulary used in the study of how the environment and environmental agents affect human health. This includes preventing, intervening in, and treating human disease associated with the environment.
Disturbance: alteration of a habitat by some agent of change, natural or unnatural Diversity: biological diversity E... RETURN TO TOP ...
Chloroform was once commonly used as a general anesthetic and as a flavoring agent in toothpastes, mouth wastes and cough syrups. It is listed as a cancer-causing chemical under Proposition 65. Chromated copper arsenate ...
Chlorofluorocarbons Synthetic organic compounds used for refrigerants, aerosol propellants (prohibited in the U.S.), and blowing agents in plastic foams. CFCs migrate to the upper atmosphere destroying ozone and increasing global warming.
Oxidizing agents (oxidants) contain atoms that have suffered electron loss. In oxidizing other substances, these atoms gain electrons. Ozone, which is a primary component of smog, is an example of an oxidant.
DIOXIN Chlorinated organic compound: a by-product of the paper-making process that uses chlorine as a bleaching agent. Dioxins can be released into the atmosphere through the incineration of chlorinated paper.
Erosion:  The wearing away of the land surface by wind, water, ice, or other geologic agents.  Erosion occurs naturally from weather or runoff but is often intensified by human land use practices.
If you suspect that your well may be contaminated, the EPA advises that you contact your local or state health department or agriculture extension agent for specific advice on disinfecting your well.
An organism, generally a microorganism, causing, or capable of causing, disease or death, a disease-producing agent, usually applied to a living organism, any worms, protozoan, viruses, bacteria or fungi that cause disease. Pathogenic ...
Supplied: paid for, furnished by, provided by, or under the control of the owner, operator or agent. System: the dynamic interrelationship of components designed to enact a vision.
sulfur dioxide (SO2) - a heavy, smelly gas which can be condensed into a clear liquid; used to make sulfuric acid, bleaching agents, preservatives and refrigerants; a major source of air pollution in industrial areas.
POTABLE: Water that does not contain pollution, contamination, objectionable minerals or infective agents and is considered safe for domestic consumption; drinkable.
Costs and benefits directly felt by individual economic agents or groups as seen from their perspective (externalities imposed on others are ignored).
volatile organic compound: a chemical that can vapourise and enter the atmosphere under normal conditions. Trees are the major outdoor source of VOCs. Paints, cleaning agents and furnishings made from petrochemicals are major sources of indoor ...
Ozone (O3) a naturally occurring unstable form of oxygen; attenuates harmful ultraviolet light in the stratosphere; a pollutant in the atmosphere at ground level; a powerful oxidising agent and disinfectant ...
Treatment options for acute, traumatic non-penetrating spinal cord injuries include the administration of a high dose of an anti-inflammatory agent, methylprednisolone Methylprednisolone ...
Halons: Chemical compounds developed from hydrocarbons by replacing atoms of hydrogen with atoms of halogens, such as fluorine, chlorine, or bromine. CFCs are halons (see above). Halons are widely used as fire extinguishing agents.
non-potable Describes water that may contain objectionable pollution, contamination, minerals, or infective agents and is considered unsafe or unsuitable for drinking. Compare potable. NPDES National Pollutant Discharge Elimination System.
antagonism when two or more actions or agents work against each other, decreasing the effectiveness of all. anthropogenic having its origin in the activities of man aphotic. lacking light. See Tropholytic. aquifer.
See also: Water, Environment, Organic, Site, Air
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