An allotrope of oxygen (symbol O3) having three atoms in the molecule instead of the usual two; it is a blue gas, generated from oxygen by electrical discharge; it is poisonous and highly reactive, but in the upper atmosphere it protects life on Earth from ultraviolet radiation
A gas which is a variety of oxygen The oxygen gas found in the air consists of two oxygen atoms stuck together; this is molecular oxygen Ozone consists of three oxygen atoms stuck together into an ozone molecule Ozone occurs in nature; it produces the sharp smell you notice near a lightning strike High concentrations of ozone gas are found in a layer of the atmosphere -- the stratosphere -high above the Earth Stratospheric ozone shields the Earth against harmful rays from the sun, particularly ultraviolet B Smog's main component is ozone; this ground-level ozone is a product of reactions among chemicals produced by burning coal, gasoline and other fuels, and chemicals found in products such as solvents, paints, and hair sprays
Ozone is a colourless gas which is a form of oxygen. There is a layer of ozone high above the earth's surface. What they find could provide clues to what might happen worldwide if ozone depletion continues. Pale blue gas (O3) that is irritating, explosive, and toxic. Like ordinary oxygen gas (O2), it contains oxygen atoms, but the bonding of three atoms per molecule gives it distinctive properties. It is formed in electrical discharges and accounts for the distinctive odour of the air after thunderstorms or near electrical equipment. Usually manufactured on the spot by passing an electric discharge through oxygen or air, it is used in water purification, deodorization, bleaching, and various chemical reactions that require a strong oxidizing agent (see oxidation-reduction). Small amounts that occur naturally in the stratospheric ozone layer absorb ultraviolet (UV) radiation that otherwise could severely damage living organisms. Near Earth's surface, ozone contributes to air pollution, ozone produced by auto emissions in the presence of sunlight being a deleterious component of smog, and also accelerates the deterioration of rubber
A colorless gaseous substance (O&?;) obtained (as by the silent discharge of electricity in oxygen) as an allotropic form of oxygen, containing three atoms in the molecule
The tri-atomic allotrope of oxygen; a pale blue gas with a distinctive pungent odour, formula O3 It is a highly reactive oxidising agent and is very poisonous, and is considered a serious pollutant at concentrations much in excess of 125 g/m3 (WHO 1980) It is naturally occurring in the atmosphere It occurs at large concentrations in the upper atmosphere, where it is formed by the action of solar ultraviolet radiation In the troposphere, O3 is mostly formed by photochemical reactions involving hydrocarbons and nitrogen oxides
A bluish toxic gas, with a pungent odor, formed of three oxygen atoms rather than the usual two Occurs in the stratosphere and plays a role in filtering out ultraviolet radiation from the sun's rays At ground level ozone is a major component of photochemical smog
{i} form of oxygen having three atoms in its molecule that is a result of electrical discharge in oxygen and is found in small quantities in the atmosphere (especially after a thunderstorm) and forms a protective layer in the upper atmosphere
a naturally occurring, highly reactive gas comprising triatomic oxygen formed by recombination of oxygen in the presence of ultraviolet radiation This naturally occurring gas builds up in the lower atmosphere as smog pollution, while in the upper atmosphere it forms a protective layer which shields the earth and its inhabitants from excessive exposure to damaging ultraviolet radiation
Oxygen woth molecules containing three rather than the normal two atoms; in the upper atmosphere it absorbs hramful ultraviolet radiation
A compound that is formed when oxygen and other compounds react in sunlight In the upper atmosphere, ozone protects the earth from the sun's ultraviolet rays Though beneficial in the upper atmosphere, at ground level, ozone is called photochemical smog, and is a respiratory irritant and considered a pollutant
Ozone is formed in the air when hydrocarbons, carbon monoxide or nitrogen oxides react in the presence of sunlight and heat This is of particular concern on warm, summer-like days when "smog" is prevalent Ground level ozone causes human respiratory stress and damages many plants, significantly reducing farm crop yields and the health of trees and other vegetation However, ground level ozone does nothing to increase ozone concentration in the stratosphere, which protects the earth from the sun¹s harmful ultraviolet radiation
Ozone is a triatomic molecule of Oxygen (O3), an element that usually exists as a diatomic molecule (O2) Ozone is formed in the upper atmosphere by the action of ultraviolet light and other forms of dangerous radiation The Ozone Layer is extremely important in screening the Earth's surface from harmful radiation from the sun
An allotrope of oxygen (symbol O{3}) having three atoms in the molecule instead of the usual two; it is a blue gas, generated from oxygen by electrical discharge; it is poisonous and highly reactive, but in the upper atmosphere it protects life on Earth from ultraviolet radiation
Much like cholesterol, there is "good" ozone and "bad" ozone The good ozone (atmospheric) lies in the upper reaches of the atmosphere, helping protect us from ultraviolet radiation from the sun However, when ground level ozone (tropospheric) is in the air we breathe, it's not healthy What we commonly call "smog" is really ozone build-up in the air The use of E-10 Unleaded has been shown to help reduce tropospheric ozone levels
-A molecule composed of three atoms of oxygen and mostly found in the stratosphere Ozone absorbs the most dangerous ultraviolet rays before they can hit the earth, thus protecting life on this planet from its adverse effects
A gas formed when oxygen is ionized by, for example, the action of ultraviolet light or a strong electric field It has the property of blocking the passage of dangerous wavelengths of ultraviolet light Although it is a desirable gas in the stratosphere, it is toxic to living organisms at ground level (see volatile organic compound)
(O3) A kind of oxygen that has three atoms per molecule instead of the usual two Ozone is a poisonous gas and an irritant at the earth's surface, capable of damaging lungs and eyes But the ozone layer in the stratosphere shields life on earth from deadly ultraviolet radiation from space
A gas, O3, which is very reactive It is used as a sterilizing agent to kill bacteria and small organisms in the water It is used in an ozone reactor or protein skimmer It is important not to use too much ozone, and to filter ozonated water through carbon before returning it to the tank, as excess ozone can harm fish and other creatures
It is a streng oxidizer, and probably exists in the air, though by he ordinary tests it is liable to be confused with certain other substances, as hydrogen dioxide, or certain oxides of nitrogen