The national government has forbidden municipalities from restricting the use of steel slag with their own measures. Local ...

United States Steel’s Edgar Thomson Plant in Braddock, Pa. is shown on Feb. 26, 2019. U.S. Steel, the Pittsburgh steel producer that played a key role in the nation’s industrialization, is being ...

The source of the dust is a monument to the past: a 50-foot mountain of towering black rock, called slag, left over from a copper smelter that operated on the outskirts of town until the smelter was ...

Local authorities must scrap their own rules for the use of steel slag, the infrastructure ministry has told councils, provinces and environmental agencies. The instruction was set out in a letter ...

Copper smelting, a critical process in metal production, often leads to the generation of slag containing valuable metals. Traditionally, this slag has been discarded, causing environmental issues and ...

Copper smelting - a critical process in metal production - often generates slag, which contains valuable metals. This slag has historically been thrown away, causing harm to the environment and ...

India, Nov. 20 -- Studying how humans produced such objects is challenging because little evidence still exists, and artifacts that have survived are carefully guarded and preserved.