Cobalt

Naturally occurring transition metal

Cobalt is a rare element which in small quantities is present in many minerals. Applications of cobalt include alloys and pigments in glass-, ceramics-, and enamel production. It is also used as catalyst, as component in batteries and as micronutrient in medicine and agriculture. The radioactive isotope 60Co serves as radiation source in cancer therapy.

Cobalt is released into the environment mainly by weathering of rocks and minerals, volcanic action and anthropogenic activities.

Cobalt is an essential element for all higher animals and for humans. Essentiality has also been demonstrated for marine organisms whereas it is not clear for terrestrial plants.

Nevertheless, high concentrations of cobalt are toxic. Cobalt compounds are classified as carcinogenic and mutagenic. Effects on reproduction have been demonstrated in animal experiments. Many organisms are able to accumulate cobalt (bioaccumulation).

Specimen

Sampling area

Sampling period

1985 - 2023

Extended information

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