kobolt

Tysk: Kobolt er et grundstof, tungmetal, nr. 27 i det periodiske system. Kobolt anvendes bl.a. til at hærde rustfrit stål.
Kobolt udvindes bl.a i Den demokratiske republik Congo.
Radioaktivt kobolt er sporet i nedfald fra atmosfæriske atomvåbenforsøg, eksempelvis Operation Hardtack I, Cactus Dome, 5 May 1958.
Se også: Atomaffald ; atomfysik ; koboltbombe ; magnetisme.

Litteratur

Cobalt : U.S. Geological Survey, Mineral Commodity Summaries, 2017.
Cobalt: Radioactive Properties of Key Cobalt Isotopes. / : Human Health Fact Sheet ANL, 2001.
It may also be present as acontaminant at certain facilities, such as nuclear reactors and facilities that process spent nuclear fuel. The highest concentrations of cobalt-60 at the Hanford Site are in areas that contain waste from processing irradiated fuel, principally in the hardware associated with the spent fuel.
Elbilens ømme punkt: Børnearbejde i koboltminer: Når råmaterialerne til elbilens batterier skal udvindes, sker det nogle steder på bekostning af miljø og menneskerettigheder – og med børns sundhed som indsats. Branchen må rydde op, siger Amnesty International. Og bane vej for lukkede kredsløb. / : Jørgen Steen Nielsen. I: Information, 7. september 2017.
Omtale af:
This is what we die for: Human rights abuses in the Democratic Republic of the Congo power the global trade in cobalt Amnesty International 2016 - https://www.amnesty.org/en/documents/afr62/3183/2016/en/
This report documents the hazardous conditions in which artisanal miners, including thousands of children, mine cobalt in the Democratic Republic of the Congo. It goes on to trace how this cobalt is used to power mobile phones, laptop computers, and other portable electronic devices. Using basic hand tools, miners dig out rocks from tunnels deep underground, and accidents are common. Despite the potentially fatal health effects of prolonged exposure to cobalt, adult and child miners work without even the most basic protective equipment. This report is the first comprehensive account of how cobalt enters the supply chain of many of the world’s leading brands.


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