Il nichel ed alcuni rischi sanitari ed ambientali
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Abstract
Riassunto
Il nichel si trova in bassissime concentrazioni nel suolo, nelle acque e negli alimenti. È un micro-nutriente, cioè deve essere assunto a bassissime concentrazioni (mg al giorno) in quanto svolge alcune funzioni. Per motivi professionali o a causa dell’inquinamento ambientale si può essere esposti a concentrazioni superiori a quelle considerate di sicurezza. Inoltre, sono note da tempo le dermatiti da contatto con leghe contenenti il nichel.
Nickel and health and environmental risks
Summary
The nickel is a naturally occurring element that may exist in various mineral forms in water, soil and foods. It is micro-nourishing at low concentration (µg/day) but large doses may be toxic when taken orally. Also inhalation exposure in occupational setting will cause toxic effect. Nickel-induced contact dermatitis is well documented for humans. In this article it is summarized the toxicity profile of the nickel.
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