Arizona has housed several smelters over the decades, but environmental concerns and the boom-and-bust nature of mining have shuttered most of them. The Hayden facility is one of just two ...

An environmental study for the proposed PacWest silicon smelter is on hold, but company leaders say it's not due to market woes By Samantha Wohlfeil ...

Federal environmental regulators have fined the mining company Asarco for failing to do enough to control hazardous dust at its copper smelter in southeastern Arizona.

A Canadian company that wants to build a controversial silicon smelter near Newport says it’s ready to start the environmental review process. Meanwhile, citizens groups have challenge the sale ...

The smelting to extract silver and lead between 1893 and 1908 left a legacy of arsenic, ... Environmental Protection Agency tests last year found their soil was poisoned with lead.

A proposed settlement of alleged Clean Air Act violations involving a Muncie company's lead smelter has upset environmental groups because the agreement doesn't require the firm to retrofit its ...

Chile's Codelco stops smelter for maintenance after environmental incident. By Reuters. June 8, 2022 6:28 PM UTC Updated June 8, 2022 A virtual operations center of Chile's state ...

Utah jumped to second in a federal database of states’ total toxic chemical releases – a rise mostly attributable to the Bingham Canyon Mine, according to the EPA.

Her 2014 book, “Tainted Earth: Smelters, Public Health and the Environment,” covers smelters and their public health impact. This story was originally published November 13, 2015 at 6:46 AM.

The EPA has told state health and environmental regulators they must revisit an air pollution permit application for Century Aluminum's Mount Holly smelter off U.S. Highway 52 near Goose Creek.

Government agencies and environmental groups have blamed the 111-year- old smelter for severe air, soil and groundwater contamination. Nonetheless, on February 13, 2008 the plant was given a new lease ...

An environmental alert is still in effect. Codelco, Chile's state-owned copper mining company, has shut down a smelting facility blamed for aiding in the extreme pollution of the nearby Quintero ...