Ultimately, both industrial and artisanal mining carry the same health risks, ranging from overexertion of workers to ...

Cobalt is essential to both human and animal life but is toxic at high concentrations ... find ways to reduce the amount of cobalt in the mine tailings for years, but has been hindered by a ...

Batteries for electric vehicles are notoriously difficult to recycle, but growing demand for the rare metals they contain is ...

The company, though, had argued that this cobalt content is less toxic than free cobalt ... of treating effluent from the Nickel Plate mine site since placing it on care and maintenance in ...

Taconite is mined in the Superior National Forest, but environmentalists say mining for copper, cobalt, nickel and other ...

The company claimed the cobalt released in the mine waste appeared to be less toxic than other forms of "free cobalt." In toxicity tests, Barrick said the highest cobalt concentrations in the ...

CMOC Group boosted cobalt production at its mines in the Democratic Republic of Congo in the first three months of this year even after local authorities imposed a temporary halt to exports of the ...

but environmentalists say mining for copper, cobalt, nickel and other metals in the forest would produce tailings that can be dangerous sources of toxic chemicals that would pollute the Rainy ...