Analyses carried out by the Ministry of the Environment on samples of metal dust on the grounds of a school in Rouyn-Noranda after an incident that occurred a few weeks ago at the Horne Foundry show an arsenic content 137 times higher than the limit set in Quebec. On March 7, Rouyn-Noranda citizens shared photos of “black snow” on social networks. Source
Very high levels of arsenic on school grounds in Quebec town near smelter
