Emissions - Revision history

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energy>Jmdonev at 23:22, 9 November 2021

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	[[Category:Done ~~2020~~-01-31]]		[[Category:Done 2021-10-29]] [[Category:Translated to Spanish]]
			[[es:Emisiones]]
	[[File:exhaustgas.jpg\|300px\|thumb\|Figure 1. Exhaust gas is emitted from vehicles from the burning of [[gasoline]].<ref>Wikimedia Commons [Online], Available: https://commons.wikimedia.org/wiki/File:Automobile_exhaust_gas.jpg</ref>]]		[[File:exhaustgas.jpg\|300px\|thumb\|Figure 1. Exhaust gas is emitted from vehicles from the burning of [[gasoline]].<ref>Wikimedia Commons [Online], Available: https://commons.wikimedia.org/wiki/File:Automobile_exhaust_gas.jpg</ref>]]
	<onlyinclude>'''Emissions''' are substances that are emitted;<ref>Dictionary.com. (August 26, 2015). ''Emissions, Def.2'' [Online], Available: http://dictionary.reference.com/browse/emissions</ref> in an [[energy]] sense, these are most often [[waste]] products of a process aimed at obtaining useful [[work]]. The most common emissions from energy are associated with the generation of [[electricity]] and the [[transportation]] of people and goods. The specific chemical nature of the emissions depends on how those tasks were done.</onlyinclude>		<onlyinclude>'''Emissions''' are substances that are emitted;<ref>Dictionary.com. (August 26, 2015). ''Emissions, Def.2'' [Online], Available: http://dictionary.reference.com/browse/emissions</ref> in an [[energy]] sense, these are most often [[waste]] products of a process aimed at obtaining useful [[work]]. The most common emissions from energy are associated with the generation of [[electricity]] and the [[transportation]] of people and goods. The specific chemical nature of the emissions depends on how those tasks were done.</onlyinclude>

Jmdonev: 1 revision imported

2020-01-31T05:10:01Z

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Energy>Jmdonev at 20:49, 19 January 2020

2020-01-19T20:49:30Z

← Older revision		Revision as of 20:49, 19 January 2020
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	[[Category:Done ~~2018~~-06-01]]		[[Category:Done 2020-01-31]]
	[[File:exhaustgas.jpg\|300px\|thumb\|Figure 1. Exhaust gas is emitted from vehicles from the burning of [[gasoline]].<ref>Wikimedia Commons [Online], Available: https://commons.wikimedia.org/wiki/File:Automobile_exhaust_gas.jpg</ref>]]		[[File:exhaustgas.jpg\|300px\|thumb\|Figure 1. Exhaust gas is emitted from vehicles from the burning of [[gasoline]].<ref>Wikimedia Commons [Online], Available: https://commons.wikimedia.org/wiki/File:Automobile_exhaust_gas.jpg</ref>]]
	<onlyinclude>'''Emissions''' are ~~defined simply as something~~ that is emitted;<ref>Dictionary.com. (August 26, 2015). ''Emissions, Def.2'' [Online], Available: http://dictionary.reference.com/browse/emissions</ref> in an [[energy]] sense, these are most often [[waste]] products of a process aimed at obtaining useful [[work]]. The most common emissions from energy are associated with the generation of [[electricity]] and the [[transportation]] of goods ~~and services,~~ the ~~content of which~~ depends on ~~what methods~~ were ~~used to accomplish these tasks~~.</onlyinclude>		<onlyinclude>'''Emissions''' are substances that are emitted;<ref>Dictionary.com. (August 26, 2015). ''Emissions, Def.2'' [Online], Available: http://dictionary.reference.com/browse/emissions</ref> in an [[energy]] sense, these are most often [[waste]] products of a process aimed at obtaining useful [[work]]. The most common emissions from energy are associated with the generation of [[electricity]] and the [[transportation]] of people and goods. The specific chemical nature of the emissions depends on how those tasks were done.</onlyinclude>

	==Where do they come from?==		==Where do they come from?==
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	There are vastly different contents in emissions, depending on where they came from and what pollution control devices were used. It is often useful to isolate what type of emissions are of interest, and to measure them independently. One such technique is the [[CO2 footprint\|CO<sub>2</sub> footprint]], which measures the [[carbon dioxide]] emitted by an individual, a family, or even an entire industry.<ref name="RE1">Time for Change. (May 19, 2015). ''Carbon Footprint'' [Online]. Available: http://timeforchange.org/what-is-a-carbon-footprint-definition</ref>		There are vastly different contents in emissions, depending on where they came from and what pollution control devices were used. It is often useful to isolate what type of emissions are of interest, and to measure them independently. One such technique is the [[CO2 footprint\|CO<sub>2</sub> footprint]], which measures the [[carbon dioxide]] emitted by an individual, a family, or even an entire industry.<ref name="RE1">Time for Change. (May 19, 2015). ''Carbon Footprint'' [Online]. Available: http://timeforchange.org/what-is-a-carbon-footprint-definition</ref>

			In the following video, a member of the Energy Education team explains how the source of various emissions can be determined by looking at different stable [[isotope]]s.
			<html>
			<iframe width="560" height="315" src="https://www.youtube.com/embed/NHA0apANoZE" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
			</html>

	==For Further Reading==		==For Further Reading==
	~~Other emissions~~ of pollutants are closely monitored, some of which include:		Emissions of many pollutants are closely monitored, some of which include:

	*[[NOx\|Nitrogen oxides]] (NOx)		*[[NOx\|Nitrogen oxides]] (NOx)

Jmdonev: 1 revision imported: Doing upload, largely of old redirects.

2018-06-04T16:52:24Z

1 revision imported: Doing upload, largely of old redirects.

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Jmdonev at 19:31, 1 June 2018

2018-06-01T19:31:33Z

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	[[Category:Done ~~2015~~-09-06]]		[[Category:Done 2018-06-01]]
	[[File:exhaustgas.jpg\|300px\|thumb\|Figure 1. Exhaust gas is emitted from vehicles from the burning of [[gasoline]].<ref>Wikimedia Commons [Online], Available: https://commons.wikimedia.org/wiki/File:Automobile_exhaust_gas.jpg</ref>]]		[[File:exhaustgas.jpg\|300px\|thumb\|Figure 1. Exhaust gas is emitted from vehicles from the burning of [[gasoline]].<ref>Wikimedia Commons [Online], Available: https://commons.wikimedia.org/wiki/File:Automobile_exhaust_gas.jpg</ref>]]
	<onlyinclude>'''Emissions''' are defined simply as something that is emitted;<ref>Dictionary.com. (August 26, 2015). ''Emissions, Def.2'' [Online], Available: http://dictionary.reference.com/browse/emissions</ref> in an [[energy]] sense, these are most often [[waste]] products of a process aimed at obtaining useful [[work]]. The most common emissions from energy are associated with the generation of [[electricity]] and the [[transportation]] of goods and services, the content of which depends on what methods were used to accomplish these tasks.</onlyinclude>		<onlyinclude>'''Emissions''' are defined simply as something that is emitted;<ref>Dictionary.com. (August 26, 2015). ''Emissions, Def.2'' [Online], Available: http://dictionary.reference.com/browse/emissions</ref> in an [[energy]] sense, these are most often [[waste]] products of a process aimed at obtaining useful [[work]]. The most common emissions from energy are associated with the generation of [[electricity]] and the [[transportation]] of goods and services, the content of which depends on what methods were used to accomplish these tasks.</onlyinclude>
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	There are vastly different contents in emissions, depending on where they came from and what pollution control devices were used. It is often useful to isolate what type of emissions are of interest, and to measure them independently. One such technique is the [[CO2 footprint\|CO<sub>2</sub> footprint]], which measures the [[carbon dioxide]] emitted by an individual, a family, or even an entire industry.<ref name="RE1">Time for Change. (May 19, 2015). ''Carbon Footprint'' [Online]. Available: http://timeforchange.org/what-is-a-carbon-footprint-definition</ref>		There are vastly different contents in emissions, depending on where they came from and what pollution control devices were used. It is often useful to isolate what type of emissions are of interest, and to measure them independently. One such technique is the [[CO2 footprint\|CO<sub>2</sub> footprint]], which measures the [[carbon dioxide]] emitted by an individual, a family, or even an entire industry.<ref name="RE1">Time for Change. (May 19, 2015). ''Carbon Footprint'' [Online]. Available: http://timeforchange.org/what-is-a-carbon-footprint-definition</ref>

			==For Further Reading==
	Other emissions of pollutants are closely monitored, some of which include:		Other emissions of pollutants are closely monitored, some of which include:

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	*[[Volatile organic compound]]s (VOCs)		*[[Volatile organic compound]]s (VOCs)
	*[[Mercury]] (Hg)		*[[Mercury]] (Hg)
	*~~and more~~		* Visit [[detailed pollution data]] for various visualizations of many different pollutants.

	~~'''~~Visit [[detailed pollution data]] for various visualizations of many different pollutants.~~'''~~

	==References==		==References==
	{{reflist}}[[Category:Uploaded]]		{{reflist}}[[Category:Uploaded]]

J.williams: 1 revision imported

2015-09-18T16:51:08Z

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J.williams at 21:50, 3 September 2015

2015-09-03T21:50:51Z

← Older revision		Revision as of 21:50, 3 September 2015
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	[[Category:Done 2015-09-05]]		[[Category:Done 2015-09-06]]
	[[File:exhaustgas.jpg\|300px\|thumb\|Figure 1. Exhaust gas is emitted from vehicles from the burning of [[gasoline]].<ref>Wikimedia Commons [Online], Available: https://commons.wikimedia.org/wiki/File:Automobile_exhaust_gas.jpg</ref>]]		[[File:exhaustgas.jpg\|300px\|thumb\|Figure 1. Exhaust gas is emitted from vehicles from the burning of [[gasoline]].<ref>Wikimedia Commons [Online], Available: https://commons.wikimedia.org/wiki/File:Automobile_exhaust_gas.jpg</ref>]]
	<onlyinclude>'''Emissions''' are defined simply as something that is emitted;<ref>Dictionary.com. (August 26, 2015). ''Emissions, Def.2'' [Online], Available: http://dictionary.reference.com/browse/emissions</ref> in an [[energy]] sense, these are most often waste products of a process aimed at obtaining useful [[work]]. The most common emissions from energy are associated with the generation of [[electricity]] and the [[transportation]] of goods and services, the content of which depends on what methods were used to accomplish these tasks.</onlyinclude>		<onlyinclude>'''Emissions''' are defined simply as something that is emitted;<ref>Dictionary.com. (August 26, 2015). ''Emissions, Def.2'' [Online], Available: http://dictionary.reference.com/browse/emissions</ref> in an [[energy]] sense, these are most often [[waste]] products of a process aimed at obtaining useful [[work]]. The most common emissions from energy are associated with the generation of [[electricity]] and the [[transportation]] of goods and services, the content of which depends on what methods were used to accomplish these tasks.</onlyinclude>

	==Where do they come from?==		==Where do they come from?==
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	==References==		==References==
	{{reflist}}		{{reflist}}[[Category:Uploaded]]

J.williams: 1 revision imported

2015-09-03T18:22:20Z

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Jmdonev at 02:13, 28 August 2015

2015-08-28T02:13:32Z

New page

[[Category:Done 2015-09-05]]
[[File:exhaustgas.jpg|300px|thumb|Figure 1. Exhaust gas is emitted from vehicles from the burning of [[gasoline]].<ref>Wikimedia Commons [Online], Available: https://commons.wikimedia.org/wiki/File:Automobile_exhaust_gas.jpg</ref>]]
<onlyinclude>'''Emissions''' are defined simply as something that is emitted;<ref>Dictionary.com. (August 26, 2015). ''Emissions, Def.2'' [Online], Available: http://dictionary.reference.com/browse/emissions</ref> in an [[energy]] sense, these are most often waste products of a process aimed at obtaining useful [[work]]. The most common emissions from energy are associated with the generation of [[electricity]] and the [[transportation]] of goods and services, the content of which depends on what methods were used to accomplish these tasks.</onlyinclude>

==Where do they come from?==
Vehicles emit [[gas]]es known as [[exhaust gas]], which may contain various [[pollutant]]s and [[greenhouse gases]]. [[Power plant]]s burning [[fossil fuel]]s, such as [[coal-fired power plant]]s or [[natural gas power plant]]s, also produce emissions similar to those of exhaust gases, however they are known as [[flue gas]]es, and are emitted via the plant's [[smokestack]]. All of the aforementioned sources have one or more [[air pollution control devices]] that are used in order to limit the amount of [[pollution]] released, in order to reduce their [[environmental impact]].

Even [[renewable energy]] sources have associated emissions because they require manufacturing, transportation, construction, and decommissioning. [[Electric vehicle]]s also have associated emissions, not only due to their manufacturing, but because electricity must be generated first. Depending on how the electricity was generated, an electric vehicle will have varying emissions during its operation, known as the [[long tail-pipe problem]]. It is therefore important to consider the [[life cycle]] of all systems, since it is easy to overlook facts such as these.

==Measuring emissions==

There are vastly different contents in emissions, depending on where they came from and what pollution control devices were used. It is often useful to isolate what type of emissions are of interest, and to measure them independently. One such technique is the [[CO2 footprint|CO<sub>2</sub> footprint]], which measures the [[carbon dioxide]] emitted by an individual, a family, or even an entire industry.<ref name="RE1">Time for Change. (May 19, 2015). ''Carbon Footprint'' [Online]. Available: http://timeforchange.org/what-is-a-carbon-footprint-definition</ref>

Other emissions of pollutants are closely monitored, some of which include:

*[[NOx|Nitrogen oxides]] (NOx)
*[[SOx|Sulfur oxides]] (SOx)
*[[Particulate matter]] (PM)
*[[Volatile organic compound]]s (VOCs)
*[[Mercury]] (Hg)
*and more

'''Visit [[detailed pollution data]] for various visualizations of many different pollutants.'''

==References==
{{reflist}}