Micron: A unit to discribe a measure of length, equal to one millionth of a metre.
Microorganisms: Organisms that are so small that they can only be observed through a microscope, for instance bacteria, fungi or yeasts.
micronutrient
A chemical element necessary in only small amounts usually less than 1 ppm in the plant and for the growth of plants and the health of animals. Examples of these elements are boron, molybdenum, copper, iron, manganese and zinc.
micronucleus test
Test for mutagenicity in which animals are treated with a test agent after which time the frequency of micronucleated cells is determined; ...
Micron - a unit of length equal to one thousandth of a millimeter, or about 1/25,000 of an inch
Milli - a prefix meaning 1/1,000 ...
Micron: A unit of linear measure equal to one millionth of a meter, or one thousandth of a millimeter.
Microorganism: A microscopic organism, especially a bacterium, fungus, or protozoan.
micron : A unit of length. One millionth of a meter or one thousandth of a millimeter. One micron equals 0.00004 of an inch.
Submicron particles
particles of less than 1µm in size, present in smoke and fumes
Sulphur dioxide (SO2)Sulphur dioxide (SO2)
toxic gas produced during the combustion of sulphur compounds in fossil fuels; component of acid rain ...
These micron-sized earth elements consist primarily of silica, alumina and iron. When mixed with lime and water the fly ash forms a cementitious compound with properties very similar to that of portland cement.
The current begins somewhere between Papua New Guinea and Micronesia and flows across the Pacific to Peru.
PM10 - particulate matter less than 10 microns in diameter.
poison runoff - see polluted runoff.
poison - a chemical that adversely affects health by causing injury, illness, or death.
Fume: Solid particles under 1 micron in diameter formed as vapors condense, or as chemical reactions take place.
Furnace: A combustion chamber; an enclosed structure in which fuel is burned to heat air or material.
G ...
Suspended: Those elements which are retained by a 0.45 micron membrane filter.
Sustained Yield: Rate at which groundwater can be withdrawn from an aquifer without long term depletion of the supply.
Particles below 10 microns (10 one-millionths of a meter, 0.0004 inch) in diameter are considered potential health risks because, when inhaled, they are taken deep into the lungs.
Large fabric bag, usually made of glass fibers, used to eliminate intermediate and large (greater than 20 microns in diameter) particles.
a unit of length, used especially in expressing the length of light waves, equal to one ten-thousandth of a micron, or one hundredth-millionth of a centimeter (1 x 10E-8 cm).
anion ...
Micronutrients, or those required in small amounts are boron, chlorine, cobalt, copper, iron, manganese, molybdenum, silicon, sodium, vanadium, and zinc. These also must generally be obtained from the soil.
aerosol A suspension of fine solid or liquid particles in a gas, having small diamters ranging from 0.01 to 50 microns.
In simple terms low LET radiation (e.g. Beta Particles ) transfer less energy per unit path length than high LET radiation (e.g. Alpha Particles ) to absorbing mediums. LET has most use in radiobiology and has the units of KeV/micron.
Lao People's Democratic Republic; Latvia; Lebanon; Lesotho; Liberia; Libyan Arab Jamahiriya; Liechtenstein; Lithuania; Luxembourg; Madagascar; Malawi; Malaysia; Maldives; Mali; Malta; Marshall Islands; Mauritania; Mauritius; Mexico; Micronesia ...
fog Liquid particles less than 40 microns in diameter that are formed by condensation of vapor in air. food chain A sequence of organisms, each of which uses the next lower member of the sequence as a food source.
micronutrient or vitamin). Disjunct distribution The geographical distribution of a species or other taxonomic class of which parts are widely separated. Dispersal The spreading of individuals away from each other, e.g.
micronutrients. nutrients needed in relatively small or trace amounts, such as zinc, manganese, magnesium, silica, iron, and iodine.
microplankton composed of plankters sized from 20 to 200 micrometers
migration.
 See also: Water, Waste, Well, Organic, Air
  
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