Nitrogen Leaching
A detrimental environmental effect and a type of pollution resulting from the application of nitrogen fertilizers on plants.
Nitrogen Oxide (NOx)
The result of photochemical reactions of nitric oxide in ambient air; major component of photochemical smog.
Nitrogen Dioxide (NO2)
The result of nitric oxide combining with oxygen in the atmosphere; major component of photochemical smog.
Source: Terms of the Environment ...
Nitrogen Oxides (NOx) - Gases consisting of one molecule of nitrogen and varying numbers of oxygen molecules.
nitrogen cycle
The sequence of biochemical changes by which nitrogen is used by a living organism, liberated upon the death and decomposition of the organism, and converted to its original state of oxidation.
nitrogen fixation ...
Nitrogen: A plant nutrient that can cause an overabundance of bacteria and algae when high amounts are present, leading to a depletion of oxygen and fish kills.
nitrogen oxides - harmful gases (which contribute to acid rain and global warming) emitted as a byproduct of fossil fuel combustion.
noise pollution - environmental pollution made up of harmful or annoying noise.
Nitrogen Oxides
Polluting gases formed from nitrogen. They are produced when fossil fuels are burnt.
Oxygen
A gas that has no colour or smell. There is a lot of it in the atmosphere and vital for life.
Nitrogen oxides All oxides of nitrogen except nitrous oxide.
Particulate matter Any finely-divided airborne solid or liquid material with a diameter smaller than 100 micrometers while it is in the air.
Nitrogenous Wastes: Animal or vegetable residues that contain significant amounts of nitrogen.
Nitrophenols: Synthetic organopesticides containing carbon, hydrogen, nitrogen, and oxygen.
Nitrogen - N2, a colorless, tasteless, odorless gas which makes up 78.1% of the atmosphere. Atmospheric nitrogen is converted by nitrogen fixation and nitrification into compounds used by plants and animals.
Nitrogen Oxides (NOX): Nitrogen compounds such as NO and NO2 produced by combustion. They help to from ozone and photochemical smog.
NO2: Nitrogen Dioxide
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Nitrogen Oxides (NOX): Often mentioned in discussions of nitrogen-based air pollution as a reference to both nitric oxide (NO) and nitrogen dioxide (NO2).
Nitrogen Oxides (NOx) - A criteria air pollutant. Nitrogen oxides are produced from burning fuels, including gasoline and coal. Nitrogen oxides are smog formers, which react with volatile organic compounds to form smog.
nitrogen
An element which in living organisms is a component of protein structures.
nitrogen fixation ...
nitrogen dioxide (NO2) = a GhG
nitrous oxides (NOx) = a range of gases released during combustion and causing environmental effects including acidification and greenhouse
NMVOC = non-methane volatile organic compounds ...
Nitrogen Fixation is the conversion of airborne nitrogen into nitrates, mainly by bacteria mainly in the soil. Nitrogen has little biological use, nitrates are food to other plants.
nitrogen fixation : The biological or chemical process by which elemental nitrogen, from the air, is converted to organic or available nitrogen.
nitrogenous (nye-TRAH-jen-us). A term used to describe chemical compounds (usually organic) containing nitrogen in combined forms. Proteins and nitrates are nitrogenous compounds.
N nitrogen
Definition (english only)
An essential nutrient in the food supply of plants and the diets of animals. Animals obtain it in nitrogen-containing compounds, particularly amino acids.
total nitrogen The sum of all nitrogen forms.
total organic carbon The amount of carbon existing as part of organic compounds in a sample. Excludes inorganic forms of carbon, such as CO2 and CaCO3.
Nitrogen fixation The conversion of atmospheric (or dissolved) nitrogen gas into nitrate by microorganisms.
Nitrogenous oxygen demand (NOD) The amount of oxygen required to oxidize any ammonia present in a water.
Nitrogen Cycle
Cyclic movement of nitrogen in different chemical forms from the environment, to organisms, and then back to the environment.
Nitrogen dioxide ...
Complex nitrogenous organic compounds of high molecular weight made of amino acids essential for growth and repair of animal tissue. Many, but not all, proteins are enzymes.
Protocol
A series of formal steps for conducting a test.
A form of nitrogen that is available to plants. It is found in fertilizer, and is one of the first forms of nitrogen released as crop residues and organic fertilizers decay.
Ammonium Fixation ...
Available Nitrogen: amount of nitrogen present as either nitrate or ammonium, forms which can be readily taken up by plants.
Available Water: the portion of water in soil that can be readily absorbed by plant roots.
Ammoniacal nitrogen
nitrogen combined with hydrogen in the form of ammonia (NH3) or the ammonium ion (NH4+); present in sewage, toxic to fish and restricted in discharges to about 5-0-10-0 mg/l ...
total nitrogen. The sum of all nitrogen forms.
total particulate phosphorus. Total phosphorus content of material retained on a filter of a specific size.
total phosphorus. The sum of all phosphorus forms.
total residual chlorine.
Acid Rain Rain or any form of precipitation of dilute solutions of strong mineral acids, created by the mixing in the atmosphere of pollutants, typically sulfur dioxide and nitrogen oxides compounds, ...
'Acid rain' Rain with a very low pH (often below 4.0) resulting from emissions to the atmosphere of oxides of sulfur and nitrogen. Adaptation A confusing word used to mean quite different things.
macronutrients nutrients needed in relatively large amounts, such as phosphorus, calcium, magnesium, potassium, sulfur, nitrogen, chlorine, and sodium
macrophyte a large plant, as opposed to small and microscopic plants such as algae ...
The world’s agrifuel corporations plan to triple the amount of nitrogen entering the world’s soil, a process which releases N₂O .
Acid rain is a form of acid deposition in which sulphur dioxide (SO2) and nitrogen oxides (NOx) transform into acidic particles or vapors (such as sulphuric acid (H2SO4), ...
Nitrogen oxides (NOx). Emissions are primarily in the form of NO, which is oxidised by ozone (O3) from nitric oxide (NO) to Nitrogen dioxide (NO2). NO2) is the primary concern for effects on health, ...
0 ppmdenitrification The biochemical conversion of dissolved nitrate and nitrite nitrogen in soil or water to nitrogen gas. desalination The removal of dissolved salts, such as sodium chloride, from water.
Another type of root symbiotic association occurs between several species of trees and nitrogen fixing bacteria. In these associations, nodules are produced by the roots of the host plant upon bacterial infection.
ACID RAIN Acid rain or "acid deposition" occurs when sulphur dioxide and nitrogen oxides that are released into the atmosphere by industries, towns and cities, ...
Even though the problem of acid rain has been reduced, sulfur and nitrogen pollution levels must be brought down further.
Acid rain forms when certain atmospheric gases (primarily carbon dioxide, sulfur dioxide, and nitrogen oxides) come in contact with water in the atmosphere or on the ground and are chemically converted to acidic substances.
Acid Rain occurs when pollutants such as nitrogen oxides and sulphur dioxide from power plant emissions, metal smelting, motor vehicles and industry, combine with water in the atmosphere to form droplets of very weak acid.
When gasoline and coal are burned, nitrogen oxide gases (NOx) and volatile organic compounds (VOC) are released into the air.
Like the PSI, the AQI incorporates five criteria pollutants -- ozone, particulate matter, carbon monoxide, sulfur dioxide, and nitrogen dioxide -- into a single index. The new index also incorporates the 8-hour ozone standard and the 24-hour PM2.
A complex chemical and atmospheric phenomenon that occurs when emissions of sulfur and nitrogen compounds and other substances are transformed by chemical processes in the atmosphere, often far from the original sources, ...
Farming practices that add extra nitrogen to the soil, such as applying lots of fertilizer. Certain bacteria that live in the soil turn this extra nitrogen into nitrous oxide.
Burning fossil fuels.
Some industrial and manufacturing processes.
The acid is the result of pollution caused mostly by sulphur oxides and nitrogen oxides that are discharged into the atmosphere by industry.
The addition of nutrients (e.g., nitrogen, phosphorus, carbon compounds) from sewage effluent or agricultural runoff to surface water greatly increases the growth potential for algae and other aquatic plants.
Entrain ...
Adverse effects occurring when the generation of reactive nitrogen species in a system exceeds the system’s ability to neutralize and eliminate them; ...
Nutrients: Elements (e.g., nitrogen and phosphorus) and trace elements (including sulfur, potassium, calcium, and magnesium) that are essential for the growth of organisms.
Enrichment: The addition of nutrients (e.g. nitrogen, phosphorus, carbon compounds) from sewage effluent or agricultural runoff to surface water, greatly increases the growth potential for algae and other aquatic plants.
The Earth's atmosphere consists of about 78.1% nitrogen (by volume), 20.9% oxygen, 0.93% argon, 0.038% carbon dioxide and trace amounts of other gases. The atmosphere can be divided into a number of layers with different properties.
excluding ozone, carbon monoxide, PM-10, sulfur dioxide, nitrogen oxide) that may reasonably be anticipated to cause cancer, developmental effects, reproductive dysfunctions, neurological disorders, heritable gene mutations, ...
Cyanobacteria: are oxygen-producing phototrophic bacteria that are capable of using atmospheric nitrogen as their nutritional N source.
When the addition of nutrients, such as nitrogen and phosphorus, from sewage effluent or agricultural runoff to surface water, greatly increases algal growth.
Erosion ...
Typically consists of 50-60% methane (CH4), 30-40% carbon dioxide (CO2), 10% nitrogen (N2), small amounts of other volatile organic compounds (VOCs). Methane is a very potent greenhouse gas, 21 times more so than carbon dioxide.
Nutrient Any substance that promotes growth with living organisms. The term is generally applied to nitrogen and phosphorus in wastewater, but is also applied to other essential and trace elements.
In some other cases, nitrogen and sulfur oxides may be produced as well. Incinerators must be controlled carefully to be sure that they do not emit more than the allowable amounts of more complex, hazardous compounds.
Generally, the natural or man-induced process by which a body of water becomes enriched in dissolved mineral nutrients (particularly phosphorus and nitrogen) that stimulate the growth of aquatic plants and enhances organic production of the water ...
CRYOGENIC SIZE REDUCTION Process in which flexible substances are made brittle by cooling to extremely low temperatures, using liquid nitrogen and ground rubber.
CSPE-R Chlorosulforated polyethylene.
Low NOx Burners: One of several combustion technologies used to reduce emissions of Nitrogen Oxides (NOx.) ...
Inerting: The displacement of the atmosphere in a permit-required confined space by a non-combustible gas (e.g., nitrogen) to such an extent that the resulting atmosphere is non-combustible.
 See also: Air, Water, Organic, Environment, Environmental
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