Difference between revisions of "Zinc"
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{{Definition|title= zinc | {{Definition|title= zinc | ||
|definition= Zinc is the [[heavy metals|heavy metal]] with symbol Zn and atomic number 30<ref>[http://en.wikipedia.org/wiki/Zinc www.wikipedia.org July 24 2009]</ref>. It is brittle and has a bluish-white colour. It becomes coated with a corrosion-resistant layer in moist air<ref>[http://glossary.eea.europa.eu/terminology/concept_html?term=zinc www.glossary.eea.europa.eu July 24 2009]</ref>.}} | |definition= Zinc is the [[heavy metals|heavy metal]] with symbol Zn and atomic number 30<ref>[http://en.wikipedia.org/wiki/Zinc www.wikipedia.org July 24 2009]</ref>. It is brittle and has a bluish-white colour. It becomes coated with a corrosion-resistant layer in moist air<ref>[http://glossary.eea.europa.eu/terminology/concept_html?term=zinc www.glossary.eea.europa.eu July 24 2009]</ref>.}} | ||
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Latest revision as of 13:39, 9 August 2020
Contents |
Definition of zinc:
Zinc is the heavy metal with symbol Zn and atomic number 30[1]. It is brittle and has a bluish-white colour. 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
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Notes
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 bioaccumulated 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 guillemotsHeavy 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
References
- ↑ www.wikipedia.org July 24 2009
- ↑ www.glossary.eea.europa.eu July 24 2009
- ↑ 3.0 3.1 Kennish, M. J. (1996): Practical Handbook of Estuarine and Marine Pollution, CRC Press 524 pp
Please note that others may also have edited the contents of this article.
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