Difference between revisions of "VOC"

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They include substances like chlorinated hydrocarbons (CHC) chloroform, tetrachloormethane, tetrachloorethyleen,... Also monoaromatic substances (MAH) like benzene, toluene and ethylbenzene are VOCs
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{{Definition|title= volatile organic compounds (VOC)  
Most are industrial compounds with high annual production. tetrachloormethane is produced 300,000 tons a year.
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|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 www.wikipedia.org July 27 2009]</ref>.}}
Persistant
 
and toxic but low bioaccumulation (compared to PCBs) Chronic exposure to VOCs (like benzene) can cause immunodeficiency and have 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>
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== Notes ==
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VOCs include substances like the chlorinated hydrocarbons (CHC like: [[trichloromethane|chloroform]], tetrachloormethane, tetrachloorethyleen,...), monoaromatic substances (MAH like: [[benzene]], [[trichlorobenzene]], toluene and ethylbenzene).
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Most VOCs are industrial compounds with a high annual production. So is tetrachloormethane produced at 300.000 tons a year.<P>
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Many are [[persistent]] and [[toxic]] but show a low tendency towards [[bioaccumulation]] (at least compared to [[PCB|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>.
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== Case studies ==
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[[Volatile organic compounds in North Sea fish]]
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==References==
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<references/>
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{{author
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|AuthorID=19826
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|AuthorFullName=Daphnis De Pooter
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|AuthorName=Daphnisd}}
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[[Category:Toxicity chemicals]]

Latest revision as of 13:39, 9 August 2020

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

Notes

VOCs include substances like the chlorinated hydrocarbons (CHC like: chloroform, tetrachloormethane, tetrachloorethyleen,...), monoaromatic substances (MAH like: benzene, trichlorobenzene, toluene and ethylbenzene).

Most VOCs are industrial compounds with a high annual production. So is tetrachloormethane produced at 300.000 tons a year.

Many are persistent 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].


Case studies

Volatile organic compounds in North Sea fish


References

  1. www.wikipedia.org July 27 2009
  2. 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
The main author of this article is Daphnis De Pooter
Please note that others may also have edited the contents of this article.

Citation: Daphnis De Pooter (2020): VOC. Available from http://www.coastalwiki.org/wiki/VOC [accessed on 31-10-2024]