Ozone Definition–noun | a form of oxygen, O3, with a peculiar odor suggesting that of weak chlorine, produced when an electric spark or ultraviolet light is passed through air or oxygen. It is found in the atmosphere in minute quantities, esp. after a thunderstorm, is a powerful oxidizing agent, and is thus biologically corrosive. In the upper atmosphere, it absorbs ultraviolet rays, thereby preventing them from reaching the surface of the earth. It is used for bleaching, sterilizing water, etc. |
|
From Dictionary
Related topics from Britannicaozone
(O3), triatomic allotrope of oxygen (a form of oxygen in which the molecule contains three atoms instead of two as in the common form) that accounts for the distinctive odour of the air after a ...
environmental works
Ozone gas may also be used for disinfection of drinking water. However, since ozone is unstable, it cannot be stored and must be produced on-site, making the process more expensive than chlorination. ...
environmental works
A key component of photochemical smog, ozone is formed by a complex reaction between nitrogen dioxide and hydrocarbons in the presence of sunlight. It is considered to be a criteria pollutant in the ...
The Environment
In late June an extraordinary meeting of parties to the Montreal Protocol on Substances that Deplete the Ozone Layer agreed to cap 2006 production of methyl bromide at 13,000 metric tons, a reduction ...
The Environment
It was reported on August 1 that a research team led by Michael Newchurch of the University of Alabama had found conclusive evidence that the rate of ozone depletion in the upper stratosphere had ...
The Environment
Ahead of a meeting of the parties to the Montreal Protocol held in October-November, a comprehensive assessment by more than 250 scientists published by the World Meteorological Organization and the ...
The Environment
The ozone assessment produced every four years by more than 200 scientists on behalf of the World Meteorological Organization (WMO) and the UN Environment Programme (UNEP) was published in June. WMO ...
The Environment
The Second European Stratospheric Arctic and Mid-Latitude Experiment found that in the early spring of 1995, ozone levels at 16-18 km above the Arctic and northern Europe were 50% lower than any ...
The Environment
Signatories to the Montreal Protocol met in Vienna and in December 1995 agreed on new limits on ozone-depleting substances. Industrial countries agreed to phase out methyl bromide by 2010, and LDCs ...
Environment
On October 4, scientists of the British Antarctic Survey reported a 65-70% depletion in stratospheric ozone over the Faraday base. This was similar to the depletion reported by the World ...
|
Related topics from Technorati |
|
|
|
