Nitrogen Leaching
A detrimental environmental effect and a type of pollution resulting from the application of nitrogen fertilizers on plants.
Leaching: The removal of soluble organic and inorganic substances from the topsoil downward by the action of percolating water.
Leaching: The process by which soluble materials in the soil, such as nutrients, pesticide chemicals, or contaminants, are washed into a lower layer of soil or are dissolved and carried away by water.
leaching
The removal from the soil of materials in solution. See also eluviation.
levee ...
Leaching: The process by which soluble constituents are dissolved and filtered through the soil by a percolating fluid. There is a loss of materials caused by water carrying them deeper into the soil profile.
leaching The process by which soluble substances are dissolved and leachate is transported on or through the soil.
LEACHING Process by which soluble materials are dissolved and carried through the soil by a percolating liquid.
LINER Barrier designed to prevent the leaching of contents from a landfill. Commonly comprised of plastic or dense clay.
Leaching: movement through soil of dissolved or suspended substances in water.
Lethal Dose (LD): amount of a substance required to cause death in an organism.
Loading: amount of a substance entering the environment (soil, water, or air).
leaching
extraction or flushing out of dissolved or suspended materials from the soil, solid waste, or another medium by water or other liquids as they percolate down through the medium to groundwater.
lentic system ...
Leaching - As water moves through soils or landfills, chemicals in the soil may dissolve in the water thereby contaminating the groundwater. This is called leaching.
Leaching The act of dissolving the soluble portion of a solid mixture by some solvent. An example is the dissolving of inorganic or organic contaminants from refuse in a landfill by infiltrating rain water.
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Leach, Leaching: The process by which soluble chemical components are dissolved and carried through soil by water or some other percolating liquid.
Leaching may occur in farming areas, feed lots, and landfills, and may result in hazardous substances entering surface water, ground water, or soil.
The removal of dissolved salts (such as sodium chloride, NACI) from water by natural means (leaching) or by specific water treatment processes.
desiccant (DESS-uh-kant).
Infiltration - the downward entry of water into the immediate surface of the soil, as contrasted with leaching (percolation),
which is the movement of water from the soil.
Irrigation - application of water to soils to assist in plant growth.
It is naturally found in petroleum and bituminous coal and its main source is from the combustion of gasoline, landfill leaching and general use of asphalt. It has a molecular weight of 120.9 g/mol and is also known as isocumene or phenylpropane.
For example, limiting the leaching of substances contaminating soil.
Phytostimulation - enhancement of microbial activity for the degradation of contaminants, typically around plant roots.
Toxicity Characteristic Leaching Procedure (TCLP)
A federal test for the Toxicity Characteristic (TC).
Agricultural pollution
Farming wastes, including runoff and leaching of pesticides and fertilizers; erosion and dust from plowing; improper disposal of animal manure and carcasses; crop residues, and debris.(1) ...
Determining toxicity by a procedure which simulates leaching; if a certain concentration of a toxic substance can be leached from a waste, that waste is considered hazardous, i.e., "EP Toxic."
Extraction Well ...
Extraction Procedure (EP Toxic): Determining toxicity by a procedure which simulates leaching; if a certain concentration of a toxic substance can be leached from a waste, that waste is considered hazardous, i.e., "EP Toxic." ...
Leachate - Water that collects contaminants as it trickles through wastes, pesticides or fertilizers. Leaching may occur in farming areas, feed lots, and landfills, and may result in hazardous substances entering surface water, ground water, ...
Landfill sites must be carefully researched, planned and developed to prevent liquid wastes from leaching (meaning " moving down through") through the landfill site down to the base of the landfill and polluting groundwater resources.
Licensed active mills with tailings piles and evaporation ponds created by acid or alkaline leaching processes.
Source: Terms of the Environment
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Nitrate sensitive area
a defined area, designated by statutory order, within which measures are taken to minimise the leaching of nitrates from agriculture into groundwater ...
Nonpoint source: Pollution of the water from numerous widespread locations that are hard to identify and pin-point. Ex. agri-chemicals through leaching or runoff or any conveyance not meeting the definition of point source.
Uranium Mill-Tailings Waste Piles- Licensed active mills with tailings piles and evaporation ponds created by acid or alkaline leaching processes.
Leachate often contains suspended or dissolved waste materials and may occur in farming areas, feedlots, and landfills. Leaching may result in hazardous substances entering surface water, ground water, or soil if it is not controlled.
Release: Any spilling, overfilling, leaking, emitting, discharging, escaping, leaching or disposing from a UST into groundwater, surface water or subsurface soils.
The supply of fresh water found beneath the Earth's surface, usually in aquifers, which supply wells and springs. Because ground water is a major source of drinking water, there is growing concern over contamination from leaching agricultural or ...
BPA: Abbreviation for Bisphenol A, an organic compound found in many plastics that is suspected to be hazardous to humans. Recent reports from the FDA (2010) raise concerns about safety and the exposure of BPA BPA-leaching products to infants and ...
dissipation
Reduction in the amount of a pesticide or other compound which has been applied to plants, soil etc. (used when it is not clear whether this is by mineralization degradation, binding, or leaching).
The more or less decomposed organic matter in the soil. Besides being the source of most of the mineral salts needed by plants, humus improves the texture of the soil and holds water, so reducing the loss of nutrients by leaching.
This rainforest, located on the Olympic Peninsula of Washington receives nearly 200 inches of rainfall per year. Litter inputs are tremendous, decomposition rates are fast, and soil weathering and leaching due to rainfall is accelerated.
the process of becoming mineral, specifically the release of Is are nutrients (minerals) contained in microbes and detritus, through leaching from detritus, excretion, and upon death of decomposers.
 See also: Soil, Water, Waste, Environment, Hazard
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