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emission

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emission

1. energy, in the form of heat, light, radio waves, etc., emitted from a source
2. a measure of the number of electrons emitted by a cathode or electron gun
3. Physiol any bodily discharge, esp an involuntary release of semen during sleep
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

emission

1. The release of light or other radiation from an excited atom or molecule, or the radiation so emitted. See emission spectrum; nonthermal emission; thermal emission.
2. The liberation of electrons from the surface of a solid or liquid. See photoelectric effect.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006

emission

[i′mish·ən]
(electromagnetism)
Any radiation of energy by means of electromagnetic waves, as from a radio transmitter.
(meteorology)
A natural or anthropogenic discharge of particulate, gaseous, or soluble waste material or pollution into the air.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

emission

The radiation of energy (for example, electromagnetic, heat, light, or sound).
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
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References in periodicals archive
Internal combustion engines produce four major emissions: nitrogen oxides (NOx), particulate matter (PM), hydrocarbons and carbon monoxide.
Japan, steeped in a tradition of honor and commitment, must face an embarrassing truth: it has not made a dent in its Kyoto Protocol target emissions, its 6% target reduction soaring to an 8.3% increase by 2003, which essentially put the target in the vicinity of 15%.
Apart from the top key players, the other players contribute nearly 30%-35% in the emission monitoring system market.
9.) CCM Emission Testing Center - Jose Riel., (National Highway) Brgy.
Despite growing international concern over climate change, global emissions have continued to rise steadily.
For vehicular emission inventory, the relevant emission factors (in g/km units) for pollutants PM10 have been collected from available literature [1, 8,9]
The NEC directive obliges member states to limit, no later than the end of 2010, their annual national emissions of sulphur dioxide (SO2), NOx, VOC and ammonia (NH3) to levels not exceeding the ceilings set in its Annex I.
Under the emissions trading system that Japan plans to introduce as part of its efforts to combat global warming, the Ministry of the Environment is considering not setting an upper limit for the total amount of CO2 emissions by electric power companies that usually emit a lot, the sources said.
A related--but slightly different--issue is whether we should use average or marginal emission rates.
The inventory results revealed that the overall GHG emission for the year 2008 as CO2 equivalent is 366.5 million tones.
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