Ferromanganese and Silicomanganese Production: National ...
Feb 19, 2021 · The EPA published a final rule for the Ferroalloys Production source egory included, among other things, the following: Emissions limits for particulate matter (PM) from stacks for the electric arc furnaces (EAF), metal oxygen refining (MOR) processes, and crushing and screening operations to minimize PM emissions from these units;