Difference between revisions of "Zinc"

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Definition|title= zinc
 
  
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{{Definition|title= zinc
 
|definition= Zinc is a [[heavy metals|heavy metal]] with the symbol Zn and atomic number 30. <ref>http://en.wikipedia.org/wiki/Zinc</ref> It is brittle and has a bluish-white color. It becomes coated with a corrosion-resistant layer in moist air.<ref>http://glossary.eea.europa.eu/terminology/concept_html?term=zinc</ref> }}
 
|definition= Zinc is a [[heavy metals|heavy metal]] with the symbol Zn and atomic number 30. <ref>http://en.wikipedia.org/wiki/Zinc</ref> It is brittle and has a bluish-white color. It becomes coated with a corrosion-resistant layer in moist air.<ref>http://glossary.eea.europa.eu/terminology/concept_html?term=zinc</ref> }}
  
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However, like most heavy metals zinc doesn't tend to [[biomagnification|biomagnify]], so that it causes little harm to [[pollution and sea birds|sea birds]] or [[pollution and marine mammals|marine mammals]]. <ref name = ken>Kennish, M. J. (1996): Practical Handbook of Estuarine and Marine Pollution, CRC Press 524 pp</ref>
 
However, like most heavy metals zinc doesn't tend to [[biomagnification|biomagnify]], so that it causes little harm to [[pollution and sea birds|sea birds]] or [[pollution and marine mammals|marine mammals]]. <ref name = ken>Kennish, M. J. (1996): Practical Handbook of Estuarine and Marine Pollution, CRC Press 524 pp</ref>
  
== See also ==
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== Case studies==
  
 
[[The relation between pollutants and disease in guillemots]] <P>
 
[[The relation between pollutants and disease in guillemots]] <P>
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[[Heavy metals in various Belgian benthic invertebrates]]  
 
[[Heavy metals in various Belgian benthic invertebrates]]  
  
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== See also ==
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[http://www.vliz.be/projects/endis/EDnorth.php?showchemprop=true&showeffects=true&chemeffects=true&chemid=362 Zinc on the ED North Database]
  
 
==References==
 
==References==
 
<references/>
 
<references/>

Revision as of 10:46, 28 July 2009

Definition of zinc:
Zinc is a heavy metal with the symbol Zn and atomic number 30. [1] It is brittle and has a bluish-white color. It becomes coated with a corrosion-resistant layer in moist air.[2]
This is the common definition for zinc, other definitions can be discussed in the article

Notes

zinc © Greg Robson

Zinc concentrations are much higher in highly polluted industrialized coastal areas like the North Sea (up to 70µg/l) than in the open ocean (0,1µg/l).[3]. Zinc usually enters the marine environment through effluents from smelters and mining sites.

Zinc tends to be accumulated by bivalves. Especially oysters contain large amounts of zinc, in the highly contaminated English Restronguet Creek they contain zinc concentrations above 10.000 µg/g dry weight. However, like most heavy metals zinc doesn't tend to biomagnify, so that it causes little harm to sea birds or marine mammals. [3]

Case studies

The relation between pollutants and disease in guillemots

Heavy metal content of mussels in the Western Scheldt estuary

Common starfish can act as a bioindicator for heavy metal pollution

Heavy metals in various Belgian benthic invertebrates

See also

Zinc on the ED North Database

References

  1. http://en.wikipedia.org/wiki/Zinc
  2. http://glossary.eea.europa.eu/terminology/concept_html?term=zinc
  3. 3.0 3.1 Kennish, M. J. (1996): Practical Handbook of Estuarine and Marine Pollution, CRC Press 524 pp