National Emission Standards for Hazardous Air Pollutants: Ferroalloys Production

Özet

This action supplements our proposed amendments to the national emission standards for hazardous air pollutants (NESHAP) for the Ferroalloys Production source category published in the Federal Register on November 23, 2011. In that action, the Environmental Protection Agency (EPA) proposed amendments based on the initial technology and residual risk reviews for this source category. Today's action presents a revised technology review and a revised residual risk review for the Ferroalloys Production source category and proposes revisions to the standards based on those reviews. This action also proposes new compliance requirements to meet the revised standards. This action would result in significant environmental improvements through the reduction of fugitive manganese emissions and through more stringent emission limits for several processes.