New model for recovering critical minerals from legacy mine waste
Thousands of legacy mine sites across Canada and the U.S. pre-date modern environmental regulations. Many contain historic sulfide-bearing waste rock left exposed […]
Horne Smelter reports arsenic levels below provincial targets, but health concerns persist
Glencore‘s Horne Smelter in Rouyn-Noranda recorded an annual average arsenic concentration of 40.9 nanograms per cubic metre in 2025, staying below Quebec’s […]
