Search results
Results from the WOW.Com Content Network
Cobalt is an essential element for health in animals in minute amounts as a component of vitamin B 12. A deficiency of cobalt, which is very rare, is also potentially lethal, leading to pernicious anemia. [1] Exposure to cobalt metal dust is most common in the fabrication of tungsten carbide. [2]
Mining can have harmful effects on surrounding surface and groundwater. [10] If proper precautions are not taken, unnaturally high concentrations of chemicals, such as arsenic, cyanide, sulphuric acid, and mercury can spread over a significant area of surface or subsurface water. [11]
In response to negative land effects of coal mining and the abundance of abandoned mines in the US the federal government enacted the Surface Mining Control and Reclamation Act of 1977, which requires reclamation plans for future coal mining sites. These plans must be approved by federal or state authorities before mining begins.
“Cobalt mining is the slave farm perfected,” Mr Kara writes. Cobalt is toxic to touch and breathe in, and can be found alongside traces of radioactive uranium. Cancers, respiratory illnesses ...
Siddharth Kara's 'Cobalt Red' is a powerful exposé of cobalt mining, which powers green technologies even as it destroys Congo's poorest people. The horrors behind the mining industry that powers ...
A new cobalt mine near Salmon has raised the stature of Idaho’s extraction economy, and brought back memories of environmental damage.
Instead, it impacts the whole country as low wages for high-risk mining worsen poverty rates, exacerbating negative social impacts such as conflict, higher crime rates, and child mortality. The effects of the exploitation of natural resources in the local community of a developing country are also exhibited in the impacts from the Ok Tedi Mine.
The toxic effects of arsenic, mercury and lead were known to the ancients but methodical studies of the overall toxicity of heavy metals appear to date from only 1868. In that year, Wanklyn and Chapman speculated on the adverse effects of the heavy metals "arsenic, lead, copper, zinc, iron and manganese " in drinking water .