Difference between revisions of "VOC"
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| − | + | Definition|title= volatile organic compounds (VOC) | |
| − | + | |definition= There is no clear and widely supported definition of a VOC. VOC is a term used more in relation to air quality and environmental studies. From a chemistry viewpoint “Volatile Organic Compound” can mean any organic compound (all chemical compounds containing carbon with exceptions) that is volatile (evaporating or vaporizing readily under normal conditions). This is a very broad set of chemicals. Definitions vary depending on the particular context. There are many other widely used terms that are a subclass of VOCs. <ref>http://en.wikipedia.org/wiki/Volatile_organic_compound</ref> | |
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| + | == Notes == | ||
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| + | VOCs include substances like the chlorinated hydrocarbons (CHC like: chloroform, tetrachloormethane, tetrachloorethyleen,...), monoaromatic substances (MAH like: benzene, toluene and ethylbenzene) | ||
| + | Most VOCs are industrial compounds with a high annual production. So is tetrachloormethane at 300,000 tons a year. | ||
| + | Many are persistant and toxic but show a low tendency towards [[bioaccumulation]] (at least compared to PCBs). Chronic exposure to some VOCs (e.g. benzene) can cause immunodeficiency and carcinogenic effects. | ||
<ref>Roose, P.; Brinkman, U.A.Th. (2005). Determination of volatile organic compounds in marine biota, in: Roose, P. (2005). Volatile organic compounds and related microcontaminants in the Scheldt estuary and the southern North Sea: method development and monitoring. pp. 85-108 </ref> | <ref>Roose, P.; Brinkman, U.A.Th. (2005). Determination of volatile organic compounds in marine biota, in: Roose, P. (2005). Volatile organic compounds and related microcontaminants in the Scheldt estuary and the southern North Sea: method development and monitoring. pp. 85-108 </ref> | ||
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| + | ==References== | ||
| + | <references/> | ||
Revision as of 15:28, 27 July 2009
Definition of volatile organic compounds (VOC):
There is no clear and widely supported definition of a VOC. VOC is a term used more in relation to air quality and environmental studies. From a chemistry viewpoint “Volatile Organic Compound” can mean any organic compound (all chemical compounds containing carbon with exceptions) that is volatile (evaporating or vaporizing readily under normal conditions). This is a very broad set of chemicals. Definitions vary depending on the particular context. There are many other widely used terms that are a subclass of VOCs. [1]
This is the common definition for volatile organic compounds (VOC), other definitions can be discussed in the article
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Notes
VOCs include substances like the chlorinated hydrocarbons (CHC like: chloroform, tetrachloormethane, tetrachloorethyleen,...), monoaromatic substances (MAH like: benzene, toluene and ethylbenzene) Most VOCs are industrial compounds with a high annual production. So is tetrachloormethane at 300,000 tons a year. Many are persistant and toxic but show a low tendency towards bioaccumulation (at least compared to PCBs). Chronic exposure to some VOCs (e.g. benzene) can cause immunodeficiency and carcinogenic effects. [2]
References
- ↑ http://en.wikipedia.org/wiki/Volatile_organic_compound
- ↑ Roose, P.; Brinkman, U.A.Th. (2005). Determination of volatile organic compounds in marine biota, in: Roose, P. (2005). Volatile organic compounds and related microcontaminants in the Scheldt estuary and the southern North Sea: method development and monitoring. pp. 85-108
