Molecules: Combinations of two or more atoms of the same or different elements held together by chemical bonds.
Molecule: The smallest division of a compound that still retains or exhibits all the properties of the substance.
Molten Salt Reactor: A thermal treatment unit that rapidly heats waste in a heat-conducting fluid bath of carbonate salt.
Molecules: A group of atoms held together by chemical forces.
Natural resource: (e.g., tree biomass, fresh water, fish) whose supply can essentially never be exhausted, usually because it is continuously produced.
molecule
the simplest structural unit of a substance that retains the properties of the substance, and is composed of one or more atoms.
most probable number (MPN) ...
biomolecule
Substance that is synthesized by and occurs naturally in living organisms.
biomonitoring
See biological monitoring ...
A molecule that carries the genetic message from DNA to a cellular protein-producing mechanism.
Source: Terms of the Environment
...
The molecules of silicon dioxide (SiO2) per molecule of aluminum oxide (Al203) in clay minerals or soils.
silica-sesquioxide ratio ...
Small molecule: Low-molecular-weight chemical compound. Many pharmaceutical drugs are small molecules.
Subcutaneous: Located / placed just beneath the skin.
water molecule
Chemically, water is H₂O . A water molecule has an oxygen atom in the middle flanked by two hydrogen atoms at 104.45 degree angle. Whenever hydrogen burns, you get pure water.
The atoms and molecules on the earth cycle among the living and nonliving components of the biosphere.
Human activities modify ecosystems.
Physical properties of compounds reflect the nature of the interactions among their molecules.
a gas composed of molecules that absorb and reradiate infrared electromagnetic radiation. When present in the atmosphere, therefore, the gas contributes to the greenhouse effect (heating of the earth's atmosphere).
Cohesion of water molecules allows water to be "pulled" up the tube. Complete hydration of the water column is necessary for this mechanism to function efficiently.
Osmosis Water molecules passing through membranes naturally, to the side with the highest concentration of dissolved impurities.
Outfall The place where a wastewater treatment plant discharges treated water into the environment.
Ligand The ion or molecule which surrounds or complexes with the central atom or ion.
Limnology The study of freshwater ecosystems.
C3 plants Plants (e.g., soybean, wheat, and cotton) whose carbon- fixation products have three carbon atoms per molecule.
Catabolism The decomposition by living organisms of complex organic molecules to simpler forms, with the release of energy.
The sum of the chemical reactions occurring within a cell or a whole organism; includes the energy-releasing breakdown of molecules (catabolism) and the synthesis of new molecules (anabolism).
metabolite.
adsorption the adhesion of a very thin layer of molecules to the surfaces of solids or liquids with which they come into contact.
CFCs are molecules that contain one or more atoms of both chlorine and fluorine. In September of 2004, the ozone hole over Antarctica was the largest area ever recorded and was almost THREE times larger than the area of the U.S.
Microorganisms are capable of utilizing many types of carbon-containing molecules as substrates for growth, metabolism and cell division.
OZONE (STRATOSPHERIC) Ozone is an unstable form of oxygen (the molecule contains three oxygen atoms) and is found in the upper atmosphere.
Terminal Electron Acceptor (TEA): A compound or molecule that accepts an electron (is reduced) during metabolism (oxidation) of a carbon source. Under aerobic conditions molecular oxygen is the terminal electron acceptor.
A measure of the number of unsaturated carbon-carbon double bonds in a vegetable oil molecule. By titrating the oil with iodine, which reacts at the double bond sites, the number of such sites can be measured.
Nitrogen Oxides (NOx) - Gases consisting of one molecule of nitrogen and varying numbers of oxygen molecules.
Water flowing in a pipe is measured in gallons per second past a certain point, not by the number of water molecules going past a point. Electric current is measured by the number of coulombs per second flowing past a certain point in a conductor.
Greenhouse Gases (GHG): gases that contribute to the so-called "Greenhouse Effect" by which infra-red radiation (itself sunlight striking the Earth and reflected at longer wavelengths) is absorbed by molecules in the atmosphere.
Destruction and Removal Efficiency (DRE): A percentage that represents the number of molecules of a compound removed or destroyed in an incinerator relative to the number of molecules entering the system. For example, a DRE of 99.
Also known as O3, ozone is a triatomic oxygen molecule that is made of 3 oxygen atoms. In the lower atmosphere ozone is an air pollutant that can harm human and animal respiratory systems and can also burn certain sensitive plants.
A man-made molecule, synthesized for commercial purposes and a naturally occuring compound made by certain bacteria. Methylmercury, which has found wide use as a mold killer, penetrates the brain and is a potent neurotoxin.
Ozone consists of three oxygen atoms stuck together (O3) into an ozone molecule. Ozone occurs in nature; it produces the sharp smell you notice near a lightning strike.
Highly reactive combining with other atoms, molecules and compounds through a process known as burning. Exists in the air as free molecules O2 (O3 = ozone), and also dissolves in water.
Aerosols are particles of matter, solid or liquid, larger than a molecule but small enough to remain suspended in the atmosphere.
Although each molecule of CO has one carbon atom and one oxygen atom, it has a shape similar to that of an oxygen molecule (two atoms of oxygen), which is important with regard to its lethality. (Source: PHYMAC).
Diffusion: the movement of molecules of a substance from a region of higher concentration to a region of lower concentration
Disturbance: alteration of a habitat by some agent of change, natural or unnatural ...
DNA (deoxyribonucleic acid): One of two types of molecules that encode genetic information. (The other is RNA. In humans DNA is the genetic material; RNA is transcribed
from it.
The Origin of Good Ozone
Ozone is created in the stratosphere when ultraviolet light from the sun splits an oxygen molecule into two single oxygen atoms. Each of those oxygen atoms then binds with an oxygen molecule to form an ozone molecule.
1) The process by which one substance is taken into the body of another substance. 2) The penetration of molecules or ions of one or more substances (gas, liquid or solid) into the interior of another substance.
Hydrolysis: reaction of a water molecule with another larger molecule, resulting in the splitting of the larger molecule.
Ignitable: capable of burning or causing a fire.
A colorless, odorless, flammable hydrocarbon (CH4) that is produced by the decomposition of organic matter, and other processes. Methane is a greenhouse gas; one molecule of methane is 25 times more effective at trapping heat than a molecule of ...
Adsorption refers to the accumulation of molecules of a gas or liquid on the surface of another substance without penetration.
Aeration Zone
The unsaturated zone just above the water table is the aeration zone.
Digestion
the enzymatic breakdown of large insoluble organic molecules into small soluble organic molecules which can be absorbed and used by either aerobic and anaerobic microorganisms ...
Organic - while it technically refers to molecules made up of two ore more atoms of carbon, it's generally now used as a term for the growth of vegetables etc without the use or artificial pesticides and fertiliser.
A natural or synthetic chemical structure where two or more like molecules are joined to form a more complex molecular structure (e.g., polyethylene in plastic).
Organic- A term that refers to molecules made up of two ore more atoms of carbon, generally pertains to compounds formed by living organisms.
Liquid: The part of the hydrologic cycle in which molecules move freely among themselves but do not separate like those in a vapor/gaseous state.
Gas: A state of matter in which substances exist in the form of non-aggregated molecules, and which, within acceptable limits of accuracy, satisfies the ideal gas laws; usually a highly superheated vapor.
Oxygenate: An organic molecule that contains oxygen. Oxygenates are typically ethers and alcohols.
Atom: The basic building block of all the matter in the universe. Every element (for example, carbon or oxygen) represents a unique type of atom. Atoms combine together to make molecules such as carbon dioxide.
B ...
Whether it's biotech experiments gone wrong or mutant-plague-wielding terrorists; whether it's nuclear accidents or nuclear conflict; whether it's microscopic global-warming molecules or humongous earth-crushing asteroids-Rees catalogs the danger.
Ozone Depletion - Destruction of the Earth's ozone layer, which can be caused by the photolytic breakdown of certain chlorine- and/or bromine-containing compounds (e.g., chlorofluorocarbons), which catalytically decompose ozone molecules.
It is generally thought of as a healthier alternative as it is less treated with chemicals, and is most commonly associated with food products. Organic can also refer to molecules made up of two ore more atoms of carbon, ...
This region, constantly in motion, is the most dense layer of the atmosphere and the region that essentially contains all the Earth's weather. Molecules of nitrogen and oxygen compose the bulk of the troposphere.
This destruction of ozone is caused by the breakdown of certain chlorine and/or bromine containing compounds (chlorofluorocarbons or halons), which break down when they reach the stratosphere and then catalytically destroy ozone molecules.
 See also: Water, Organic, Air, Environment, Condition
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