Difference between revisions of "Cadmium"
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Cadmium is a [[heavy metals|heavy metal]]. The main anthropogenic sources are copper and nickel smelting, and fuel combustion. As such, it mostly enters the marine ecosystem through atmospheric loading and riverine discharges.<ref>↑ Kennish, M. J. (1996): Practical Handbook of Estuarine and Marine Pollution, CRC Press 524 pp</ref> | Cadmium is a [[heavy metals|heavy metal]]. The main anthropogenic sources are copper and nickel smelting, and fuel combustion. As such, it mostly enters the marine ecosystem through atmospheric loading and riverine discharges.<ref>↑ Kennish, M. J. (1996): Practical Handbook of Estuarine and Marine Pollution, CRC Press 524 pp</ref> | ||
| − | Like other heavy metals, cadlium does not have [[biomagnification|biomagnifying]] properties. Higher trofic levels accumulate low amounts of cadmium and are able to deal with them efficiently with [[metallothionein|metallothioneins]]. | + | Like other heavy metals, cadlium does not have [[biomagnification|biomagnifying]] properties. Higher trofic levels accumulate low amounts of cadmium and are able to deal with them efficiently with [[metallothionein|metallothioneins]]. Mollusks contain large amounts of cadmium and seam to accumulate them.<ref>Clark, R,B., 1999. Marine pollution. Oxford University press, Fourth edition, pp 161</ref> |
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Revision as of 17:13, 8 July 2009
Cadmium is a heavy metal. The main anthropogenic sources are copper and nickel smelting, and fuel combustion. As such, it mostly enters the marine ecosystem through atmospheric loading and riverine discharges.[1]
Like other heavy metals, cadlium does not have biomagnifying properties. Higher trofic levels accumulate low amounts of cadmium and are able to deal with them efficiently with metallothioneins. Mollusks contain large amounts of cadmium and seam to accumulate them.[2]
